gcc/gcc
Richard Sandiford 2f03b10da8 testsuite: Fix sve/pcs/args_1.c failures [PR116604]
This test has been failing since r15-1619-g3b9b8d6cfdf593, which made
IRA prefer a call-clobbered register over a call-preserved register
for mem1 (the second load).  In this particular case, that just
forces the variable p3 to be allocated to a call-preserved register
instead, leading to an extra predicate move from p3 to that register.

However, it was really pot luck that this worked before.  Each argument
is used exactly once, so there isn't an obvious colouring order.
And mem0 and mem1 are passed by indirect reference, so they are not
REG_EQUIV to a stack slot in the way that some memory arguments are.

IIRC, the test was the result of some experimentation, and so I think
the best fix is to rework it to try to make it less sensitive to RA
decisions.  This patch does that by enabling scheduling for the
function and using both memory arguments in the same instruction.
This gets rid of the distracting prologue and epilogue code and
restricts the test to the PCS parts.

gcc/testsuite/
	PR testsuite/116604
	* gcc.target/aarch64/sve/pcs/args_1.c (callee_pred): Enable scheduling
	and use both memory arguments in the same instruction.  Expect no
	prologue and epilogue code.
2025-02-20 17:10:14 +00:00
..
ada Daily bump. 2025-02-05 00:18:28 +00:00
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c Daily bump. 2025-02-12 00:17:11 +00:00
c-family Daily bump. 2025-02-14 00:17:35 +00:00
common i386: Re-alias avx10.2 to 512 bit and deprecate -mno-avx10.2-[256,512] 2025-02-17 11:10:08 +08:00
config Revert "x86: Properly find the maximum stack slot alignment" 2025-02-20 15:23:15 +08:00
cp Daily bump. 2025-02-18 00:18:41 +00:00
d Daily bump. 2025-01-30 00:19:12 +00:00
doc invoke.texi: Fix typo in the file-cache-lines param 2025-02-20 13:20:34 +01:00
fortran Fortran: Remove deprecated coarray routines [PR107635] 2025-02-20 10:34:35 +01:00
ginclude Update copyright years. 2025-01-02 11:59:57 +01:00
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rtl-ssa rtl-ssa: Avoid dangling phi uses [PR118562] 2025-01-23 13:57:02 +00:00
rust Update copyright years. 2025-01-02 11:59:57 +01:00
sym-exec Update copyright years. 2025-01-02 11:59:57 +01:00
testsuite testsuite: Fix sve/pcs/args_1.c failures [PR116604] 2025-02-20 17:10:14 +00:00
text-art Update copyright years. 2025-01-02 11:59:57 +01:00
ABOUT-GCC-NLS Update copyright years. 2025-01-02 11:59:57 +01:00
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asan.cc asan: Fix missing FakeStack flag cleanup 2025-01-26 19:03:46 +01:00
asan.h Update copyright years. 2025-01-02 11:59:57 +01:00
attr-fnspec.h Update copyright years. 2025-01-02 11:59:57 +01:00
attr-urls.def LoongArch: Implement target attribute. 2025-01-21 17:36:28 +08:00
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BASE-VER Bump BASE-VER to 14.0.1 now that we are in stage4. 2025-01-13 09:04:55 +01:00
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btfout.cc bpf: make sure CO-RE relocs are typed with struct BTF_KIND_STRUCT 2025-01-15 16:15:36 +00:00
builtin-attrs.def Update copyright years. 2025-01-02 11:59:57 +01:00
builtin-types.def OpenMP: declare variant's append_args + dispatch interop fixes 2025-01-09 01:36:49 +01:00
builtins.cc middle-end: Fixup constant integers when expanding __builtin_crc [PR118288] 2025-02-17 20:47:53 +01:00
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cfgloopmanip.cc tree-optimization/118569 - LC SSA broken after unrolling 2025-01-21 13:53:13 +01:00
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cfgrtl.cc Update copyright years. 2025-01-02 11:59:57 +01:00
cfgrtl.h Update copyright years. 2025-01-02 11:59:57 +01:00
cgraph.cc Fix uniqueness of symtab_node::get_dump_name. 2025-01-18 20:40:47 +01:00
cgraph.h Fix uniqueness of symtab_node::get_dump_name. 2025-01-18 20:40:47 +01:00
cgraphbuild.cc Update copyright years. 2025-01-02 11:59:57 +01:00
cgraphclones.cc OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
cgraphunit.cc ipa: Initialize/release global obstack in process_new_functions [PR116068] 2025-01-15 09:43:32 +01:00
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cstamp-h.in
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DEV-PHASE
df-core.cc Fix some memory leaks 2025-01-10 16:46:42 +01:00
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diagnostic-format-sarif.cc sarif output: escape braces in messages [PR118675] 2025-01-28 10:36:53 -05:00
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dse.cc Update copyright years. 2025-01-02 11:59:57 +01:00
dump-context.h Update copyright years. 2025-01-02 11:59:57 +01:00
dumpfile.cc Fix uniqueness of symtab_node::get_dump_name. 2025-01-18 20:40:47 +01:00
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gcc-urlifier.def
gcc-urlifier.h Update copyright years. 2025-01-02 11:59:57 +01:00
gcc.cc driver: -fhardened and -z lazy/-z norelro [PR117739] 2025-02-13 17:17:16 -05:00
gcc.h Update copyright years. 2025-01-02 11:59:57 +01:00
gcov-counter.def Update copyright years. 2025-01-02 11:59:57 +01:00
gcov-dump.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gcov-io.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gcov-io.h Update copyright years. 2025-01-02 11:59:57 +01:00
gcov-tool.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gcov.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gcse-common.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gcse-common.h Update copyright years. 2025-01-02 11:59:57 +01:00
gcse.cc Fix bootstrap on !HARDREG_PRE_REGNOS targets 2025-01-10 15:41:53 +01:00
gcse.h Update copyright years. 2025-01-02 11:59:57 +01:00
gdbasan.in
gdbhooks.py Update copyright years. 2025-01-02 11:59:57 +01:00
gdbinit.in Update copyright years. 2025-01-02 11:59:57 +01:00
gen-pass-instances.awk Update copyright years. 2025-01-02 11:59:57 +01:00
genattr-common.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genattr.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genattrtab.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genautomata.cc [PR middle-end/117263] Avoid unused-but-set warning in genautomata 2025-02-09 09:16:31 -07:00
gencfn-macros.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gencheck.cc Update copyright years. 2025-01-02 11:59:57 +01:00
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gencodes.cc Update copyright years. 2025-01-02 11:59:57 +01:00
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genconstants.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genemit.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genenums.cc Update copyright years. 2025-01-02 11:59:57 +01:00
generic-match-head.cc Update copyright years. 2025-01-02 11:59:57 +01:00
generic-match.h Update copyright years. 2025-01-02 11:59:57 +01:00
genextract.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genflags.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gengenrtl.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gengtype-lex.l Update copyright years. 2025-01-02 11:59:57 +01:00
gengtype-parse.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gengtype-state.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gengtype.cc tree, gengtype: Fix up GC issue with DECL_VALUE_EXPR [PR118790] 2025-02-13 14:14:50 +01:00
gengtype.h Update copyright years. 2025-01-02 11:59:57 +01:00
genhooks.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genmatch.cc Annotate dbg_line_numbers table 2025-01-15 12:52:03 +01:00
genmddeps.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genmddump.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genmodes.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genmultilib Update copyright years. 2025-01-02 11:59:57 +01:00
genopinit.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genoutput.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genpeep.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genpreds.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genrecog.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gensupport.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gensupport.h Update copyright years. 2025-01-02 11:59:57 +01:00
gentarget-def.cc Update copyright years. 2025-01-02 11:59:57 +01:00
genversion.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ggc-common.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ggc-internal.h Update copyright years. 2025-01-02 11:59:57 +01:00
ggc-none.cc Update copyright years. 2025-01-02 11:59:57 +01:00
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ggc-tests.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ggc.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-array-bounds.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-array-bounds.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-builder.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-builder.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-crc-optimization.cc Fix some memory leaks 2025-01-10 16:46:42 +01:00
gimple-expr.cc OpenMP: New tree nodes for metadirective and dynamic selector support. 2025-01-14 16:29:27 +00:00
gimple-expr.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-fold.cc [ifcombine] cope with signbit tests of extended values 2025-02-17 23:17:21 -03:00
gimple-fold.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-harden-conditionals.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-harden-control-flow.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-if-to-switch.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-isel.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-iterator.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-iterator.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-laddress.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-loop-interchange.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-loop-jam.cc tree-optimization/117113 - ICE with unroll-and-jam 2025-02-04 10:59:55 +01:00
gimple-loop-versioning.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-low.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-low.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-lower-bitint.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-lower-bitint.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-match-exports.cc match: Keep conditional in simplification to constant [PR118140]. 2025-01-14 12:52:32 +01:00
gimple-match-head.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-match.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-predicate-analysis.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-predicate-analysis.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-predict.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-pretty-print.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-pretty-print.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-cache.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-cache.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-edge.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-edge.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-fold.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-fold.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-gori.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-gori.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-infer.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-infer.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-op.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-op.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-path.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-path.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-phi.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-phi.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-tests.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-trace.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range-trace.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-range.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-backprop.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-isolate-paths.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-nonnull-compare.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-sccopy.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-split-paths.cc split-path: Small fix for poor_ifcvt_pred (tsvc s258) [PR118505] 2025-01-29 05:34:54 -08:00
gimple-ssa-sprintf.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-store-merging.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-strength-reduction.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-warn-access.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-warn-access.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-warn-alloca.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-warn-restrict.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa-warn-restrict.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-ssa.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-streamer-in.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-streamer-out.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-streamer.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-walk.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-walk.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimple-warn-recursion.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimple.cc OpenMP: New tree nodes for metadirective and dynamic selector support. 2025-01-14 16:29:27 +00:00
gimple.def Update copyright years. 2025-01-02 11:59:57 +01:00
gimple.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimplify-me.cc Update copyright years. 2025-01-02 11:59:57 +01:00
gimplify-me.h Update copyright years. 2025-01-02 11:59:57 +01:00
gimplify.cc OpenMP: append_args clause fixes + Fortran support 2025-01-30 11:28:50 +01:00
gimplify.h OpenMP: Re-work and extend context selector resolution 2025-01-14 16:29:30 +00:00
glimits.h Update copyright years. 2025-01-02 11:59:57 +01:00
godump.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graph.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graph.h Update copyright years. 2025-01-02 11:59:57 +01:00
graphds.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphds.h Update copyright years. 2025-01-02 11:59:57 +01:00
graphite-dependences.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphite-isl-ast-to-gimple.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphite-optimize-isl.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphite-poly.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphite-scop-detection.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphite-sese-to-poly.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphite.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphite.h Update copyright years. 2025-01-02 11:59:57 +01:00
graphviz.cc Update copyright years. 2025-01-02 11:59:57 +01:00
graphviz.h Update copyright years. 2025-01-02 11:59:57 +01:00
gsstruct.def Update copyright years. 2025-01-02 11:59:57 +01:00
gsyms.h Update copyright years. 2025-01-02 11:59:57 +01:00
gsyslimits.h
gtm-builtins.def
haifa-sched.cc Update copyright years. 2025-01-02 11:59:57 +01:00
hard-reg-set.h Update copyright years. 2025-01-02 11:59:57 +01:00
hash-map-tests.cc Update copyright years. 2025-01-02 11:59:57 +01:00
hash-map-traits.h Update copyright years. 2025-01-02 11:59:57 +01:00
hash-map.h Update copyright years. 2025-01-02 11:59:57 +01:00
hash-set-tests.cc Update copyright years. 2025-01-02 11:59:57 +01:00
hash-set.h Update copyright years. 2025-01-02 11:59:57 +01:00
hash-table.cc Update copyright years. 2025-01-02 11:59:57 +01:00
hash-table.h Update copyright years. 2025-01-02 11:59:57 +01:00
hash-traits.h Update copyright years. 2025-01-02 11:59:57 +01:00
highlev-plugin-common.h Update copyright years. 2025-01-02 11:59:57 +01:00
hooks.cc Update copyright years. 2025-01-02 11:59:57 +01:00
hooks.h Update copyright years. 2025-01-02 11:59:57 +01:00
host-default.cc Update copyright years. 2025-01-02 11:59:57 +01:00
hosthooks-def.h Update copyright years. 2025-01-02 11:59:57 +01:00
hosthooks.h Update copyright years. 2025-01-02 11:59:57 +01:00
hw-doloop.cc Update copyright years. 2025-01-02 11:59:57 +01:00
hw-doloop.h Update copyright years. 2025-01-02 11:59:57 +01:00
hwint.cc Update copyright years. 2025-01-02 11:59:57 +01:00
hwint.h Update copyright years. 2025-01-02 11:59:57 +01:00
ifcvt.cc ifcvt: Don't speculation move inline-asm [PR102150] 2025-02-12 14:33:49 -08:00
ifcvt.h Update copyright years. 2025-01-02 11:59:57 +01:00
inchash.cc Update copyright years. 2025-01-02 11:59:57 +01:00
inchash.h Update copyright years. 2025-01-02 11:59:57 +01:00
incpath.cc Update copyright years. 2025-01-02 11:59:57 +01:00
incpath.h Update copyright years. 2025-01-02 11:59:57 +01:00
init-regs.cc Update copyright years. 2025-01-02 11:59:57 +01:00
input.cc input: give file_cache_slot its own copy of the file path [PR118919] 2025-02-19 09:46:43 -05:00
input.h Add tunables for input buffer 2025-02-02 21:40:37 -08:00
insn-addr.h Update copyright years. 2025-01-02 11:59:57 +01:00
insn-notes.def Update copyright years. 2025-01-02 11:59:57 +01:00
int-vector-builder.h Update copyright years. 2025-01-02 11:59:57 +01:00
internal-fn.cc [PATCH] crc: Fix up some crc related wrong code issues [PR117997, PR118415] 2025-01-12 17:54:37 -07:00
internal-fn.def Update copyright years. 2025-01-02 11:59:57 +01:00
internal-fn.h Update copyright years. 2025-01-02 11:59:57 +01:00
intl.cc Update copyright years. 2025-01-02 11:59:57 +01:00
intl.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-comdats.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-cp.cc ipa-cp: Perform operations in the appropriate types (PR 118097) 2025-02-10 16:50:36 +01:00
ipa-cp.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-devirt.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-fnsummary.cc lto: Add an entry for cold attribute to lto_gnu_attributes 2025-02-11 16:40:33 +01:00
ipa-fnsummary.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-free-lang-data.cc lto/113207 - fix free_lang_data_in_type 2025-02-04 08:34:48 +01:00
ipa-icf-gimple.cc icf: Compare call argument types in certain cases and asm operands [PR117432] 2025-02-01 00:50:24 +01:00
ipa-icf-gimple.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-icf.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-icf.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-inline-analysis.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-inline-transform.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-inline.cc Fix uniqueness of symtab_node::get_dump_name. 2025-01-18 20:40:47 +01:00
ipa-inline.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-modref-tree.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-modref-tree.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-modref.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-modref.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-param-manipulation.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-param-manipulation.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-polymorphic-call.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-predicate.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-predicate.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-profile.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-prop.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-prop.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-pure-const.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-ref.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-ref.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-reference.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-reference.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-split.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-sra.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-strub.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-strub.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-utils.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-utils.h Update copyright years. 2025-01-02 11:59:57 +01:00
ipa-visibility.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ipa.cc OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
ira-build.cc [rtl-optimization/116244] Don't create bogus regs in alter_subreg 2025-02-07 09:10:59 -07:00
ira-color.cc ira: Add a target hook for callee-saved register cost scale 2025-02-07 08:34:52 +08:00
ira-conflicts.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ira-costs.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ira-emit.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ira-int.h [PR118497][IRA]: Fix calculation of cost of assigning callee-saved hard reg 2025-01-24 13:17:41 -05:00
ira-lives.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ira.cc [PR118497][IRA]: Fix calculation of cost of assigning callee-saved hard reg 2025-01-24 13:17:41 -05:00
ira.h Update copyright years. 2025-01-02 11:59:57 +01:00
is-a.h Update copyright years. 2025-01-02 11:59:57 +01:00
iterator-utils.h Update copyright years. 2025-01-02 11:59:57 +01:00
json-parsing.cc Update copyright years. 2025-01-02 11:59:57 +01:00
json-parsing.h Update copyright years. 2025-01-02 11:59:57 +01:00
json.cc Update copyright years. 2025-01-02 11:59:57 +01:00
json.h Update copyright years. 2025-01-02 11:59:57 +01:00
jump.cc Update copyright years. 2025-01-02 11:59:57 +01:00
langhooks-def.h Update copyright years. 2025-01-02 11:59:57 +01:00
langhooks.cc Update copyright years. 2025-01-02 11:59:57 +01:00
langhooks.h Update copyright years. 2025-01-02 11:59:57 +01:00
LANGUAGES Update copyright years. 2025-01-02 11:59:57 +01:00
late-combine.cc late-combine: Tighten register class check [PR108840] 2025-02-18 11:00:57 +00:00
lazy-diagnostic-path.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lazy-diagnostic-path.h Update copyright years. 2025-01-02 11:59:57 +01:00
lcm.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lcm.h Update copyright years. 2025-01-02 11:59:57 +01:00
libfuncs.h Update copyright years. 2025-01-02 11:59:57 +01:00
libgdiagnostics++.h sarif-replay: display annotations as labelled ranges (§3.28.6) [PR118881] 2025-02-15 08:13:06 -05:00
libgdiagnostics.cc sarif-replay: display annotations as labelled ranges (§3.28.6) [PR118881] 2025-02-15 08:13:06 -05:00
libgdiagnostics.h sarif-replay: display annotations as labelled ranges (§3.28.6) [PR118881] 2025-02-15 08:13:06 -05:00
libgdiagnostics.map sarif-replay: display annotations as labelled ranges (§3.28.6) [PR118881] 2025-02-15 08:13:06 -05:00
libsarifreplay.cc sarif-replay: handle the 'fixes' property (§3.27.30) 2025-02-15 08:18:19 -05:00
libsarifreplay.h Update copyright years. 2025-01-02 11:59:57 +01:00
limitx.h Update copyright years. 2025-01-02 11:59:57 +01:00
limity.h
lists.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lock-and-run.sh
lockfile.cc lto: Fix empty fnctl.h build error with MinGW. 2025-01-13 08:01:01 +01:00
lockfile.h Update copyright years. 2025-01-02 11:59:57 +01:00
logical-location.h Update copyright years. 2025-01-02 11:59:57 +01:00
loop-doloop.cc Update copyright years. 2025-01-02 11:59:57 +01:00
loop-init.cc Update copyright years. 2025-01-02 11:59:57 +01:00
loop-invariant.cc loop-invariant: Treat inline-asm conditional trapping [PR102150] 2025-02-12 14:34:58 -08:00
loop-iv.cc loop-iv, riscv: Fix get_biv_step_1 for RISC-V [PR117506] 2025-02-06 15:39:18 +01:00
loop-unroll.cc rtl-optimization/118298 - constant iteration loops and #pragma unroll 2025-01-07 15:33:58 +01:00
loop-unroll.h Update copyright years. 2025-01-02 11:59:57 +01:00
lower-subreg.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lower-subreg.h Update copyright years. 2025-01-02 11:59:57 +01:00
lra-assigns.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lra-coalesce.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lra-constraints.cc [PR116234][LRA]: Check debug insn when looking at one insn pseudo occurrence 2025-01-31 09:40:06 -05:00
lra-eliminations.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lra-int.h Update copyright years. 2025-01-02 11:59:57 +01:00
lra-lives.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lra-remat.cc [PR115568][LRA]: Use more strict output reload check in rematerialization 2025-02-05 14:25:01 -05:00
lra-spills.cc Use known_ge' instead of compare_sizes_for_sort'. 2025-01-21 21:36:05 +04:00
lra.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lra.h Update copyright years. 2025-01-02 11:59:57 +01:00
lto-cgraph.cc OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
lto-compress.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lto-compress.h Update copyright years. 2025-01-02 11:59:57 +01:00
lto-ltrans-cache.cc lto: Pass cache checksum by reference [PR118181] 2025-01-13 08:14:24 +01:00
lto-ltrans-cache.h lto: Pass cache checksum by reference [PR118181] 2025-01-13 08:14:24 +01:00
lto-opts.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lto-section-in.cc tree-ssa-dce: Punt on allocations with too large constant sizes [PR118224] 2025-01-06 10:12:00 +01:00
lto-section-names.h Update copyright years. 2025-01-02 11:59:57 +01:00
lto-section-out.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lto-streamer-in.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lto-streamer-out.cc OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
lto-streamer.cc Update copyright years. 2025-01-02 11:59:57 +01:00
lto-streamer.h OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
lto-wrapper.cc lto: Remove link() to fix build with MinGW [PR118238] 2025-01-15 07:41:39 +01:00
machmode.def Update copyright years. 2025-01-02 11:59:57 +01:00
machmode.h Update copyright years. 2025-01-02 11:59:57 +01:00
main.cc Update copyright years. 2025-01-02 11:59:57 +01:00
make-unique.h Update copyright years. 2025-01-02 11:59:57 +01:00
Makefile.in Doc: Delete obsolete interface.texi chapter from GCC internals manual 2025-02-12 01:46:17 +00:00
match.pd tree-optimization/90579 - avoid STLF fail by better optimizing 2025-02-14 08:28:50 +01:00
mcf.cc Update copyright years. 2025-01-02 11:59:57 +01:00
mem-stats-traits.h Update copyright years. 2025-01-02 11:59:57 +01:00
mem-stats.h Update copyright years. 2025-01-02 11:59:57 +01:00
memmodel.h Update copyright years. 2025-01-02 11:59:57 +01:00
memory-block.cc Update copyright years. 2025-01-02 11:59:57 +01:00
memory-block.h Update copyright years. 2025-01-02 11:59:57 +01:00
mkconfig.sh Update copyright years. 2025-01-02 11:59:57 +01:00
mode-classes.def Update copyright years. 2025-01-02 11:59:57 +01:00
mode-switching.cc Update copyright years. 2025-01-02 11:59:57 +01:00
modulo-sched.cc Update copyright years. 2025-01-02 11:59:57 +01:00
multiple_target.cc Disable a broken multiversioning optimisation 2025-01-10 14:12:11 +00:00
mux-utils.h Update copyright years. 2025-01-02 11:59:57 +01:00
obstack-utils.h Update copyright years. 2025-01-02 11:59:57 +01:00
omp-api.h Update copyright years. 2025-01-02 11:59:57 +01:00
omp-builtins.def OpenMP: Re-work and extend context selector resolution 2025-01-14 16:29:30 +00:00
omp-expand.cc OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
omp-expand.h Update copyright years. 2025-01-02 11:59:57 +01:00
omp-general.cc OpenMP: Pass a 3-way flag to omp_check_context_selector instead of a bool. 2025-02-11 17:04:48 +00:00
omp-general.h OpenMP: Pass a 3-way flag to omp_check_context_selector instead of a bool. 2025-02-11 17:04:48 +00:00
omp-low.cc OpenMP/PolyInt: Pass poly-int structures by address to OMP libs. 2025-01-23 16:03:07 +05:30
omp-low.h Update copyright years. 2025-01-02 11:59:57 +01:00
omp-oacc-kernels-decompose.cc Update copyright years. 2025-01-02 11:59:57 +01:00
omp-oacc-neuter-broadcast.cc Update copyright years. 2025-01-02 11:59:57 +01:00
omp-offload.cc OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
omp-offload.h Update copyright years. 2025-01-02 11:59:57 +01:00
omp-selectors.h Update copyright years. 2025-01-02 11:59:57 +01:00
omp-simd-clone.cc OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
omp-simd-clone.h Update copyright years. 2025-01-02 11:59:57 +01:00
ONEWS
opt-functions.awk Update copyright years. 2025-01-02 11:59:57 +01:00
opt-gather.awk Update copyright years. 2025-01-02 11:59:57 +01:00
opt-include.awk Update copyright years. 2025-01-02 11:59:57 +01:00
opt-problem.cc Update copyright years. 2025-01-02 11:59:57 +01:00
opt-problem.h Update copyright years. 2025-01-02 11:59:57 +01:00
opt-read.awk Update copyright years. 2025-01-02 11:59:57 +01:00
opt-suggestions.cc Update copyright years. 2025-01-02 11:59:57 +01:00
opt-suggestions.h Update copyright years. 2025-01-02 11:59:57 +01:00
optabs-libfuncs.cc Update copyright years. 2025-01-02 11:59:57 +01:00
optabs-libfuncs.h Update copyright years. 2025-01-02 11:59:57 +01:00
optabs-query.cc optabs: Fix widening optabs for vec-mode -> scalar-mode [PR116926] 2025-02-04 00:19:09 -08:00
optabs-query.h Update copyright years. 2025-01-02 11:59:57 +01:00
optabs-tree.cc Update copyright years. 2025-01-02 11:59:57 +01:00
optabs-tree.h Update copyright years. 2025-01-02 11:59:57 +01:00
optabs.cc Update copyright years. 2025-01-02 11:59:57 +01:00
optabs.def Update copyright years. 2025-01-02 11:59:57 +01:00
optabs.h Update copyright years. 2025-01-02 11:59:57 +01:00
optc-gen.awk Update copyright years. 2025-01-02 11:59:57 +01:00
optc-save-gen.awk options: Adjust cl_optimization_compare to avoid checking ICE [PR115913] 2025-02-02 10:09:25 -05:00
opth-gen.awk Update copyright years. 2025-01-02 11:59:57 +01:00
optinfo-emit-json.cc Update copyright years. 2025-01-02 11:59:57 +01:00
optinfo-emit-json.h Update copyright years. 2025-01-02 11:59:57 +01:00
optinfo.cc Update copyright years. 2025-01-02 11:59:57 +01:00
optinfo.h Update copyright years. 2025-01-02 11:59:57 +01:00
options-urls-cc-gen.awk Update copyright years. 2025-01-02 11:59:57 +01:00
opts-common.cc Update copyright years. 2025-01-02 11:59:57 +01:00
opts-diagnostic.cc sarif output: fix alphabetization in sarif_scheme_handler::make_sink 2025-02-18 16:54:52 -05:00
opts-diagnostic.h Update copyright years. 2025-01-02 11:59:57 +01:00
opts-global.cc Update copyright years. 2025-01-02 11:59:57 +01:00
opts-jobserver.h Update copyright years. 2025-01-02 11:59:57 +01:00
opts.cc Update copyright years. 2025-01-02 11:59:57 +01:00
opts.h Update copyright years. 2025-01-02 11:59:57 +01:00
ordered-hash-map-tests.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ordered-hash-map.h Update copyright years. 2025-01-02 11:59:57 +01:00
output.h Update copyright years. 2025-01-02 11:59:57 +01:00
pair-fusion.cc pair-fusion: Tweak wording in dump message [PR118320] 2025-02-18 10:48:50 +00:00
pair-fusion.h Update copyright years. 2025-01-02 11:59:57 +01:00
params.opt Fix file cache tunables documentation 2025-02-04 08:43:59 -08:00
params.opt.urls
pass_manager.h Update copyright years. 2025-01-02 11:59:57 +01:00
passes.cc OpenMP: Remove dead code from declare variant reimplementation 2025-01-14 16:29:34 +00:00
passes.def Add new hardreg PRE pass 2025-01-10 14:12:11 +00:00
plugin.cc jit/118780 - make sure to include dlfcn.h when plugin support is disabled 2025-02-07 16:01:46 +01:00
plugin.def Update copyright years. 2025-01-02 11:59:57 +01:00
plugin.h Update copyright years. 2025-01-02 11:59:57 +01:00
pointer-query.cc Update copyright years. 2025-01-02 11:59:57 +01:00
pointer-query.h Update copyright years. 2025-01-02 11:59:57 +01:00
poly-int-types.h Update copyright years. 2025-01-02 11:59:57 +01:00
poly-int.h Update copyright years. 2025-01-02 11:59:57 +01:00
postreload-gcse.cc Update copyright years. 2025-01-02 11:59:57 +01:00
postreload.cc [PR rtl-optimization/107455] Eliminate unnecessary constant load 2025-01-13 07:29:39 -07:00
predict.cc Update copyright years. 2025-01-02 11:59:57 +01:00
predict.def Update copyright years. 2025-01-02 11:59:57 +01:00
predict.h Update copyright years. 2025-01-02 11:59:57 +01:00
prefix.cc Update copyright years. 2025-01-02 11:59:57 +01:00
prefix.h Update copyright years. 2025-01-02 11:59:57 +01:00
pretty-print-format-impl.h Update copyright years. 2025-01-02 11:59:57 +01:00
pretty-print-markup.h Update copyright years. 2025-01-02 11:59:57 +01:00
pretty-print-urlifier.h Update copyright years. 2025-01-02 11:59:57 +01:00
pretty-print.cc Update copyright years. 2025-01-02 11:59:57 +01:00
pretty-print.h Update copyright years. 2025-01-02 11:59:57 +01:00
print-rtl-function.cc Update copyright years. 2025-01-02 11:59:57 +01:00
print-rtl.cc Update copyright years. 2025-01-02 11:59:57 +01:00
print-rtl.h Update copyright years. 2025-01-02 11:59:57 +01:00
print-tree.cc Update copyright years. 2025-01-02 11:59:57 +01:00
print-tree.h Update copyright years. 2025-01-02 11:59:57 +01:00
profile-count.cc Update copyright years. 2025-01-02 11:59:57 +01:00
profile-count.h Update copyright years. 2025-01-02 11:59:57 +01:00
profile.cc Update copyright years. 2025-01-02 11:59:57 +01:00
profile.h Update copyright years. 2025-01-02 11:59:57 +01:00
range-op-float.cc Update copyright years. 2025-01-02 11:59:57 +01:00
range-op-mixed.h Update copyright years. 2025-01-02 11:59:57 +01:00
range-op-ptr.cc Update copyright years. 2025-01-02 11:59:57 +01:00
range-op.cc Update copyright years. 2025-01-02 11:59:57 +01:00
range-op.h Update copyright years. 2025-01-02 11:59:57 +01:00
range.cc Update copyright years. 2025-01-02 11:59:57 +01:00
range.h Update copyright years. 2025-01-02 11:59:57 +01:00
read-md.cc Update copyright years. 2025-01-02 11:59:57 +01:00
read-md.h Update copyright years. 2025-01-02 11:59:57 +01:00
read-rtl-function.cc Update copyright years. 2025-01-02 11:59:57 +01:00
read-rtl-function.h Update copyright years. 2025-01-02 11:59:57 +01:00
read-rtl.cc Update copyright years. 2025-01-02 11:59:57 +01:00
README.Portability Update copyright years. 2025-01-02 11:59:57 +01:00
real.cc Update copyright years. 2025-01-02 11:59:57 +01:00
real.h Update copyright years. 2025-01-02 11:59:57 +01:00
realmpfr.cc Update copyright years. 2025-01-02 11:59:57 +01:00
realmpfr.h Update copyright years. 2025-01-02 11:59:57 +01:00
recog.cc Update copyright years. 2025-01-02 11:59:57 +01:00
recog.h Update copyright years. 2025-01-02 11:59:57 +01:00
ree.cc ree: Skip extension on fixed register 2025-01-09 16:38:31 +08:00
reg-notes.def Update copyright years. 2025-01-02 11:59:57 +01:00
reg-stack.cc Update copyright years. 2025-01-02 11:59:57 +01:00
regcprop.cc Update copyright years. 2025-01-02 11:59:57 +01:00
regcprop.h Update copyright years. 2025-01-02 11:59:57 +01:00
regenerate-attr-urls.py Update copyright years. 2025-01-02 11:59:57 +01:00
regenerate-opt-urls.py Update copyright years. 2025-01-02 11:59:57 +01:00
reginfo.cc Update copyright years. 2025-01-02 11:59:57 +01:00
regrename.cc Update copyright years. 2025-01-02 11:59:57 +01:00
regrename.h Update copyright years. 2025-01-02 11:59:57 +01:00
regs.h Update copyright years. 2025-01-02 11:59:57 +01:00
regset.h Update copyright years. 2025-01-02 11:59:57 +01:00
regstat.cc Update copyright years. 2025-01-02 11:59:57 +01:00
reload.cc Update copyright years. 2025-01-02 11:59:57 +01:00
reload.h Update copyright years. 2025-01-02 11:59:57 +01:00
reload1.cc Update copyright years. 2025-01-02 11:59:57 +01:00
reorg.cc Update copyright years. 2025-01-02 11:59:57 +01:00
resource.cc Update copyright years. 2025-01-02 11:59:57 +01:00
resource.h Update copyright years. 2025-01-02 11:59:57 +01:00
rtl-error.cc Update copyright years. 2025-01-02 11:59:57 +01:00
rtl-error.h Update copyright years. 2025-01-02 11:59:57 +01:00
rtl-iter.h Update copyright years. 2025-01-02 11:59:57 +01:00
rtl-ssa.h Update copyright years. 2025-01-02 11:59:57 +01:00
rtl-tests.cc Update copyright years. 2025-01-02 11:59:57 +01:00
rtl.cc Update copyright years. 2025-01-02 11:59:57 +01:00
rtl.def Update copyright years. 2025-01-02 11:59:57 +01:00
rtl.h rtl: Remove invalid compare simplification [PR117186] 2025-01-10 12:51:15 +00:00
rtlanal.cc rtlanal: Treat writes to sp as also writing to memory [PR117938] 2025-01-03 18:12:07 +00:00
rtlanal.h Update copyright years. 2025-01-02 11:59:57 +01:00
rtlhash.cc Update copyright years. 2025-01-02 11:59:57 +01:00
rtlhash.h Update copyright years. 2025-01-02 11:59:57 +01:00
rtlhooks-def.h Update copyright years. 2025-01-02 11:59:57 +01:00
rtlhooks.cc Update copyright years. 2025-01-02 11:59:57 +01:00
rtx-vector-builder.cc Update copyright years. 2025-01-02 11:59:57 +01:00
rtx-vector-builder.h Update copyright years. 2025-01-02 11:59:57 +01:00
run-rtl-passes.cc Update copyright years. 2025-01-02 11:59:57 +01:00
run-rtl-passes.h Update copyright years. 2025-01-02 11:59:57 +01:00
sancov.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sanitizer.def Update copyright years. 2025-01-02 11:59:57 +01:00
sanopt.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sarif-replay.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sarif-spec-urls.def
sbitmap.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sbitmap.h Update copyright years. 2025-01-02 11:59:57 +01:00
sched-deps.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sched-ebb.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sched-int.h Update copyright years. 2025-01-02 11:59:57 +01:00
sched-rgn.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sel-sched-dump.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sel-sched-dump.h Update copyright years. 2025-01-02 11:59:57 +01:00
sel-sched-ir.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sel-sched-ir.h Update copyright years. 2025-01-02 11:59:57 +01:00
sel-sched.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sel-sched.h Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-diagnostic-path.cc Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-diagnostic-path.h Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-diagnostic-show-locus.h Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-diagnostic.cc Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-diagnostic.h Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-json.cc Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-json.h Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-logical-location.cc Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-logical-location.h Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-rtl.cc Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-rtl.h Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-run-tests.cc Update copyright years. 2025-01-02 11:59:57 +01:00
selftest-tree.h Update copyright years. 2025-01-02 11:59:57 +01:00
selftest.cc Update copyright years. 2025-01-02 11:59:57 +01:00
selftest.h Update copyright years. 2025-01-02 11:59:57 +01:00
sese.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sese.h Update copyright years. 2025-01-02 11:59:57 +01:00
shortest-paths.h Update copyright years. 2025-01-02 11:59:57 +01:00
shrink-wrap.cc Update copyright years. 2025-01-02 11:59:57 +01:00
shrink-wrap.h Update copyright years. 2025-01-02 11:59:57 +01:00
signop.h Update copyright years. 2025-01-02 11:59:57 +01:00
simple-diagnostic-path.cc Update copyright years. 2025-01-02 11:59:57 +01:00
simple-diagnostic-path.h Update copyright years. 2025-01-02 11:59:57 +01:00
simplify-rtx.cc [PR rtl-optimization/109592] Simplify nested shifts 2025-01-14 21:56:19 -07:00
sort.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sparseset.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sparseset.h Update copyright years. 2025-01-02 11:59:57 +01:00
spellcheck-tree.cc Update copyright years. 2025-01-02 11:59:57 +01:00
spellcheck-tree.h Update copyright years. 2025-01-02 11:59:57 +01:00
spellcheck.cc Update copyright years. 2025-01-02 11:59:57 +01:00
spellcheck.h Update copyright years. 2025-01-02 11:59:57 +01:00
splay-tree-utils.cc Update copyright years. 2025-01-02 11:59:57 +01:00
splay-tree-utils.h Update copyright years. 2025-01-02 11:59:57 +01:00
splay-tree-utils.tcc Update copyright years. 2025-01-02 11:59:57 +01:00
sreal.cc Update copyright years. 2025-01-02 11:59:57 +01:00
sreal.h Update copyright years. 2025-01-02 11:59:57 +01:00
ssa-iterators.h Update copyright years. 2025-01-02 11:59:57 +01:00
ssa.h Update copyright years. 2025-01-02 11:59:57 +01:00
stack-ptr-mod.cc Update copyright years. 2025-01-02 11:59:57 +01:00
statistics.cc Update copyright years. 2025-01-02 11:59:57 +01:00
statistics.h Update copyright years. 2025-01-02 11:59:57 +01:00
stmt.cc Update copyright years. 2025-01-02 11:59:57 +01:00
stmt.h Update copyright years. 2025-01-02 11:59:57 +01:00
stor-layout.cc Update copyright years. 2025-01-02 11:59:57 +01:00
stor-layout.h Update copyright years. 2025-01-02 11:59:57 +01:00
store-motion.cc Update copyright years. 2025-01-02 11:59:57 +01:00
streamer-hooks.cc Update copyright years. 2025-01-02 11:59:57 +01:00
streamer-hooks.h Update copyright years. 2025-01-02 11:59:57 +01:00
stringpool.cc Update copyright years. 2025-01-02 11:59:57 +01:00
stringpool.h Update copyright years. 2025-01-02 11:59:57 +01:00
substring-locations.cc Update copyright years. 2025-01-02 11:59:57 +01:00
substring-locations.h Update copyright years. 2025-01-02 11:59:57 +01:00
symbol-summary.h Update copyright years. 2025-01-02 11:59:57 +01:00
symtab-clones.cc Update copyright years. 2025-01-02 11:59:57 +01:00
symtab-clones.h Update copyright years. 2025-01-02 11:59:57 +01:00
symtab-thunks.cc Update copyright years. 2025-01-02 11:59:57 +01:00
symtab-thunks.h Update copyright years. 2025-01-02 11:59:57 +01:00
symtab.cc Fix uniqueness of symtab_node::get_dump_name. 2025-01-18 20:40:47 +01:00
sync-builtins.def Update copyright years. 2025-01-02 11:59:57 +01:00
system.h jit/118780 - make sure to include dlfcn.h when plugin support is disabled 2025-02-07 16:01:46 +01:00
target-def.h Update copyright years. 2025-01-02 11:59:57 +01:00
target-globals.cc Update copyright years. 2025-01-02 11:59:57 +01:00
target-globals.h Update copyright years. 2025-01-02 11:59:57 +01:00
target-hooks-macros.h Update copyright years. 2025-01-02 11:59:57 +01:00
target-insns.def Update copyright years. 2025-01-02 11:59:57 +01:00
target.def ira: Add a target hook for callee-saved register cost scale 2025-02-07 08:34:52 +08:00
target.h Update copyright years. 2025-01-02 11:59:57 +01:00
targhooks.cc ira: Add a target hook for callee-saved register cost scale 2025-02-07 08:34:52 +08:00
targhooks.h ira: Add a target hook for callee-saved register cost scale 2025-02-07 08:34:52 +08:00
text-range-label.h Update copyright years. 2025-01-02 11:59:57 +01:00
timevar.cc Update copyright years. 2025-01-02 11:59:57 +01:00
timevar.def Update copyright years. 2025-01-02 11:59:57 +01:00
timevar.h Update copyright years. 2025-01-02 11:59:57 +01:00
toplev.cc Add tunables for input buffer 2025-02-02 21:40:37 -08:00
toplev.h Update copyright years. 2025-01-02 11:59:57 +01:00
tracer.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tracer.h Update copyright years. 2025-01-02 11:59:57 +01:00
trans-mem.cc Update copyright years. 2025-01-02 11:59:57 +01:00
trans-mem.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-affine.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-affine.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-assume.cc tree-assume: Fix UB in assume_query [PR118605] 2025-01-23 11:47:19 +01:00
tree-call-cdce.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-cfg.cc OpenMP: New tree nodes for metadirective and dynamic selector support. 2025-01-14 16:29:27 +00:00
tree-cfg.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-cfgcleanup.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-cfgcleanup.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-chrec.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-chrec.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-complex.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-core.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-data-ref.cc tree-optimization/116010 - dr_may_alias regression 2025-01-24 14:58:48 +01:00
tree-data-ref.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-dfa.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-dfa.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-diagnostic-client-data-hooks.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-diagnostic.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-diagnostic.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-dump.cc c++: dump-lang-raw with obj_type_ref fields 2025-01-14 15:24:17 -05:00
tree-dump.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-eh.cc [ifcombine] avoid creating out-of-bounds BIT_FIELD_REFs [PR118514] 2025-02-07 08:30:47 -03:00
tree-eh.h [ifcombine] avoid creating out-of-bounds BIT_FIELD_REFs [PR118514] 2025-02-07 08:30:47 -03:00
tree-emutls.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-hash-traits.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-hasher.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-if-conv.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-if-conv.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-inline.cc inline: Purge the abnormal edges as needed in fold_marked_statements [PR118077] 2025-01-20 08:20:00 -08:00
tree-inline.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-into-ssa.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-into-ssa.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-iterator.cc c++: Fix up regressions caused by for/while loops with declarations [PR118822] 2025-02-13 10:21:29 +01:00
tree-iterator.h c++: Fix up regressions caused by for/while loops with declarations [PR118822] 2025-02-13 10:21:29 +01:00
tree-logical-location.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-logical-location.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-loop-distribution.cc tree-optimization/112859 - add comment 2025-01-28 15:03:05 +01:00
tree-nested.cc middle-end/118325 - nonlocal goto lowering 2025-01-08 08:21:50 +01:00
tree-nested.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-nrv.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-object-size.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-object-size.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-outof-ssa.cc tree-optimization/86270 - improve SSA coalescing for loop exit test 2025-02-20 08:38:41 +01:00
tree-outof-ssa.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-parloops.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-parloops.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-pass.h Add new hardreg PRE pass 2025-01-10 14:12:11 +00:00
tree-phinodes.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-phinodes.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-predcom.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-pretty-print-markup.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-pretty-print.cc Clarify 'OMP_CLAUSE_MAP_RUNTIME_IMPLICIT_P' in 'gcc/tree-pretty-print.cc:dump_omp_clause' 2025-01-28 11:33:28 +01:00
tree-pretty-print.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-profile.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-scalar-evolution.cc tree-optimization/118521 - bogus diagnostic from unreachable code 2025-02-20 15:18:11 +01:00
tree-scalar-evolution.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-sra.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-sra.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-address.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-address.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-alias-compare.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-alias.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-alias.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-ccp.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-ccp.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-coalesce.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-coalesce.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-copy.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-dce.cc tree-ssa-dce: Fix calloc handling [PR118224] 2025-01-20 10:24:18 +01:00
tree-ssa-dce.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-dom.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-dom.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-dse.cc tree-ssa-dce: Avoid creating invalid BBs with no outgoing edge (PR117892) 2025-01-29 10:51:34 +01:00
tree-ssa-dse.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-forwprop.cc tree-optimization/90579 - avoid STLF fail by better optimizing 2025-02-14 08:28:50 +01:00
tree-ssa-ifcombine.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-live.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-live.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop-ch.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop-im.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop-ivcanon.cc tree-optimization/118634 - improve cunroll dump 2025-01-24 12:38:48 +01:00
tree-ssa-loop-ivopts.cc middle-end: Remove unused internal function after IVopts cleanup [PR118756] 2025-02-06 17:48:05 +00:00
tree-ssa-loop-ivopts.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop-manip.cc vect: Move induction IV increments [PR110449] 2025-02-06 10:30:53 +00:00
tree-ssa-loop-manip.h vect: Move induction IV increments [PR110449] 2025-02-06 10:30:53 +00:00
tree-ssa-loop-niter.cc niter: Make build_cltz_expr more robust [PR118689] 2025-01-31 11:16:17 +01:00
tree-ssa-loop-niter.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop-prefetch.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop-split.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop-unswitch.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-loop.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-math-opts.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-math-opts.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-operands.cc OpenMP: New tree nodes for metadirective and dynamic selector support. 2025-01-14 16:29:27 +00:00
tree-ssa-operands.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-phiopt.cc tree-optimization/118717 - store commoning vs. abnormals 2025-02-03 11:23:22 +01:00
tree-ssa-phiprop.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-pre.cc tree-optimization/118817 - missed folding of PRE inserted code 2025-02-11 12:42:04 +01:00
tree-ssa-propagate.cc tree-ssa-propagate: Special case lhs of musttail calls in may_propagate_copy [PR118430] 2025-01-16 09:27:54 +01:00
tree-ssa-propagate.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-reassoc.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-reassoc.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-sccvn.cc tree-optimization/118895 - ICE during PRE 2025-02-17 14:41:25 +01:00
tree-ssa-sccvn.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-scopedtables.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-scopedtables.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-sink.cc tree-optimization/118717 - store commoning vs. abnormals 2025-02-03 11:23:22 +01:00
tree-ssa-strlen.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-strlen.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-structalias.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-tail-merge.cc tree-optimization/98845 - ICE with tail-merging and DCE/DSE disabled 2025-02-18 08:55:47 +01:00
tree-ssa-ter.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-ter.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-threadbackward.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-threadedge.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-threadedge.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-threadupdate.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-threadupdate.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-uncprop.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa-uninit.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssa.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssanames.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-ssanames.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-stdarg.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-stdarg.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-streamer-in.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-streamer-out.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-streamer.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-streamer.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-switch-conversion.cc tree-switch-conversion: don't apply switch size limit on jump tables 2025-01-06 10:49:53 +01:00
tree-switch-conversion.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-tailcall.cc tailc: Virtually undo IPA-VRP return value optimization for tail calls [PR118430] 2025-01-16 09:27:54 +01:00
tree-vect-data-refs.cc tree-optimization/118749 - bogus alignment peeling causes misaligned access 2025-02-06 09:03:49 +01:00
tree-vect-generic.cc tree-optimization/115538 - possible wrong-code with SLP conversion 2025-02-07 13:39:58 +01:00
tree-vect-loop-manip.cc vect: Set counts of early break exit blocks correctly [PR117790] 2025-02-12 15:03:40 +00:00
tree-vect-loop.cc Vect: Fix ICE when vect_verify_loop_lens acts on relevant mode [PR116351] 2025-02-19 21:06:54 +08:00
tree-vect-patterns.cc vect: Fix wrong code with pr108692.c on targets with only non-widening ABD [PR118727] 2025-02-05 17:44:07 +08:00
tree-vect-slp-patterns.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-vect-slp.cc tree-optimization/118852 - wrong code with 502.gcc_r 2025-02-14 18:40:52 +01:00
tree-vect-stmts.cc tree-optimization/115538 - possible wrong-code with SLP conversion 2025-02-07 13:39:58 +01:00
tree-vector-builder.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-vector-builder.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree-vectorizer.cc vect: Preserve OMP info for conditional stores [PR118348] 2025-01-20 20:05:05 +00:00
tree-vectorizer.h tree-optimization/115538 - possible wrong-code with SLP conversion 2025-02-07 13:39:58 +01:00
tree-vrp.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tree-vrp.h Update copyright years. 2025-01-02 11:59:57 +01:00
tree.cc tree: Fix up the DECL_VALUE_EXPR GC marking [PR118790] 2025-02-14 12:01:13 +01:00
tree.def OpenMP: New tree nodes for metadirective and dynamic selector support. 2025-01-14 16:29:27 +00:00
tree.h OpenMP: New tree nodes for metadirective and dynamic selector support. 2025-01-14 16:29:27 +00:00
treestruct.def Update copyright years. 2025-01-02 11:59:57 +01:00
tristate.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tristate.h Update copyright years. 2025-01-02 11:59:57 +01:00
tsan.cc Update copyright years. 2025-01-02 11:59:57 +01:00
tsan.h Update copyright years. 2025-01-02 11:59:57 +01:00
tsystem.h Update copyright years. 2025-01-02 11:59:57 +01:00
typeclass.h Update copyright years. 2025-01-02 11:59:57 +01:00
typed-splay-tree.cc Update copyright years. 2025-01-02 11:59:57 +01:00
typed-splay-tree.h Update copyright years. 2025-01-02 11:59:57 +01:00
ubsan.cc Update copyright years. 2025-01-02 11:59:57 +01:00
ubsan.h Update copyright years. 2025-01-02 11:59:57 +01:00
unique-argv.h Update copyright years. 2025-01-02 11:59:57 +01:00
valtrack.cc Update copyright years. 2025-01-02 11:59:57 +01:00
valtrack.h Update copyright years. 2025-01-02 11:59:57 +01:00
value-pointer-equiv.cc Update copyright years. 2025-01-02 11:59:57 +01:00
value-pointer-equiv.h Update copyright years. 2025-01-02 11:59:57 +01:00
value-prof.cc Update copyright years. 2025-01-02 11:59:57 +01:00
value-prof.h Update copyright years. 2025-01-02 11:59:57 +01:00
value-query.cc Update copyright years. 2025-01-02 11:59:57 +01:00
value-query.h Update copyright years. 2025-01-02 11:59:57 +01:00
value-range-pretty-print.cc Update copyright years. 2025-01-02 11:59:57 +01:00
value-range-pretty-print.h Update copyright years. 2025-01-02 11:59:57 +01:00
value-range-storage.cc Update copyright years. 2025-01-02 11:59:57 +01:00
value-range-storage.h Update copyright years. 2025-01-02 11:59:57 +01:00
value-range.cc Update copyright years. 2025-01-02 11:59:57 +01:00
value-range.h Update copyright years. 2025-01-02 11:59:57 +01:00
value-relation.cc Update copyright years. 2025-01-02 11:59:57 +01:00
value-relation.h Update copyright years. 2025-01-02 11:59:57 +01:00
var-tracking.cc Update copyright years. 2025-01-02 11:59:57 +01:00
varasm.cc varasm: Fix up array_size_for_constructor RAW_DATA_CST handling once again [PR118275] 2025-01-03 17:59:57 +01:00
varasm.h Update copyright years. 2025-01-02 11:59:57 +01:00
varpool.cc Update copyright years. 2025-01-02 11:59:57 +01:00
vec-perm-indices.cc Update copyright years. 2025-01-02 11:59:57 +01:00
vec-perm-indices.h Update copyright years. 2025-01-02 11:59:57 +01:00
vec.cc Update copyright years. 2025-01-02 11:59:57 +01:00
vec.h vec.h: Properly destruct elements in auto_vec auto storage [PR118400] 2025-01-16 09:27:53 +01:00
vector-builder.h Update copyright years. 2025-01-02 11:59:57 +01:00
vmsdbg.h Update copyright years. 2025-01-02 11:59:57 +01:00
vmsdbgout.cc Update copyright years. 2025-01-02 11:59:57 +01:00
vr-values.cc [PR tree-optimization/98028] Use relationship between operands to simplify SUB_OVERFLOW 2025-02-15 16:49:12 -07:00
vr-values.h Update copyright years. 2025-01-02 11:59:57 +01:00
vtable-verify.cc Update copyright years. 2025-01-02 11:59:57 +01:00
vtable-verify.h Update copyright years. 2025-01-02 11:59:57 +01:00
warning-control.cc Update copyright years. 2025-01-02 11:59:57 +01:00
web.cc Update copyright years. 2025-01-02 11:59:57 +01:00
wide-int-bitmask.h Update copyright years. 2025-01-02 11:59:57 +01:00
wide-int-print.cc Update copyright years. 2025-01-02 11:59:57 +01:00
wide-int-print.h Update copyright years. 2025-01-02 11:59:57 +01:00
wide-int.cc Update copyright years. 2025-01-02 11:59:57 +01:00
wide-int.h Update copyright years. 2025-01-02 11:59:57 +01:00
xcoff.h Update copyright years. 2025-01-02 11:59:57 +01:00

Copyright (C) 2000-2025 Free Software Foundation, Inc.

This file is intended to contain a few notes about writing C code
within GCC so that it compiles without error on the full range of
compilers GCC needs to be able to compile on.

The problem is that many ISO-standard constructs are not accepted by
either old or buggy compilers, and we keep getting bitten by them.
This knowledge until now has been sparsely spread around, so I
thought I'd collect it in one useful place.  Please add and correct
any problems as you come across them.

I'm going to start from a base of the ISO C90 standard, since that is
probably what most people code to naturally.  Obviously using
constructs introduced after that is not a good idea.

For the complete coding style conventions used in GCC, please read
http://gcc.gnu.org/codingconventions.html


String literals
---------------

Some compilers like MSVC++ have fairly low limits on the maximum
length of a string literal; 509 is the lowest we've come across.  You
may need to break up a long printf statement into many smaller ones.


Empty macro arguments
---------------------

ISO C (6.8.3 in the 1990 standard) specifies the following:

If (before argument substitution) any argument consists of no
preprocessing tokens, the behavior is undefined.

This was relaxed by ISO C99, but some older compilers emit an error,
so code like

#define foo(x, y) x y
foo (bar, )

needs to be coded in some other way.


Avoid unnecessary test before free
----------------------------------

Since SunOS 4 stopped being a reasonable portability target,
(which happened around 2007) there has been no need to guard
against "free (NULL)".  Thus, any guard like the following
constitutes a redundant test:

  if (P)
    free (P);

It is better to avoid the test.[*]
Instead, simply free P, regardless of whether it is NULL.

[*] However, if your profiling exposes a test like this in a
performance-critical loop, say where P is nearly always NULL, and
the cost of calling free on a NULL pointer would be prohibitively
high, consider using __builtin_expect, e.g., like this:

  if (__builtin_expect (ptr != NULL, 0))
    free (ptr);



Trigraphs
---------

You weren't going to use them anyway, but some otherwise ISO C
compliant compilers do not accept trigraphs.


Suffixes on Integer Constants
-----------------------------

You should never use a 'l' suffix on integer constants ('L' is fine),
since it can easily be confused with the number '1'.


			Common Coding Pitfalls
			======================

errno
-----

errno might be declared as a macro.


Implicit int
------------

In C, the 'int' keyword can often be omitted from type declarations.
For instance, you can write

  unsigned variable;

as shorthand for

  unsigned int variable;

There are several places where this can cause trouble.  First, suppose
'variable' is a long; then you might think

  (unsigned) variable

would convert it to unsigned long.  It does not.  It converts to
unsigned int.  This mostly causes problems on 64-bit platforms, where
long and int are not the same size.

Second, if you write a function definition with no return type at
all:

  operate (int a, int b)
  {
    ...
  }

that function is expected to return int, *not* void.  GCC will warn
about this.

Implicit function declarations always have return type int.  So if you
correct the above definition to

  void
  operate (int a, int b)
  ...

but operate() is called above its definition, you will get an error
about a "type mismatch with previous implicit declaration".  The cure
is to prototype all functions at the top of the file, or in an
appropriate header.

Char vs unsigned char vs int
----------------------------

In C, unqualified 'char' may be either signed or unsigned; it is the
implementation's choice.  When you are processing 7-bit ASCII, it does
not matter.  But when your program must handle arbitrary binary data,
or fully 8-bit character sets, you have a problem.  The most obvious
issue is if you have a look-up table indexed by characters.

For instance, the character '\341' in ISO Latin 1 is SMALL LETTER A
WITH ACUTE ACCENT.  In the proper locale, isalpha('\341') will be
true.  But if you read '\341' from a file and store it in a plain
char, isalpha(c) may look up character 225, or it may look up
character -31.  And the ctype table has no entry at offset -31, so
your program will crash.  (If you're lucky.)

It is wise to use unsigned char everywhere you possibly can.  This
avoids all these problems.  Unfortunately, the routines in <string.h>
take plain char arguments, so you have to remember to cast them back
and forth - or avoid the use of strxxx() functions, which is probably
a good idea anyway.

Another common mistake is to use either char or unsigned char to
receive the result of getc() or related stdio functions.  They may
return EOF, which is outside the range of values representable by
char.  If you use char, some legal character value may be confused
with EOF, such as '\377' (SMALL LETTER Y WITH UMLAUT, in Latin-1).
The correct choice is int.

A more subtle version of the same mistake might look like this:

  unsigned char pushback[NPUSHBACK];
  int pbidx;
  #define unget(c) (assert(pbidx < NPUSHBACK), pushback[pbidx++] = (c))
  #define get(c) (pbidx ? pushback[--pbidx] : getchar())
  ...
  unget(EOF);

which will mysteriously turn a pushed-back EOF into a SMALL LETTER Y
WITH UMLAUT.


Other common pitfalls
---------------------

o Expecting 'plain' char to be either sign or unsigned extending.

o Shifting an item by a negative amount or by greater than or equal to
  the number of bits in a type (expecting shifts by 32 to be sensible
  has caused quite a number of bugs at least in the early days).

o Expecting ints shifted right to be sign extended.

o Modifying the same value twice within one sequence point.

o Host vs. target floating point representation, including emitting NaNs
  and Infinities in a form that the assembler handles.

o qsort being an unstable sort function (unstable in the sense that
  multiple items that sort the same may be sorted in different orders
  by different qsort functions).

o Passing incorrect types to fprintf and friends.

o Adding a function declaration for a module declared in another file to
  a .c file instead of to a .h file.