![]() This patch extends our immediate SIMD generation cases to support generating integer immediates using floating point operation if the integer immediate maps to an exact FP value. As an example: uint32x4_t f1() { return vdupq_n_u32(0x3f800000); } currently generates: f1: adrp x0, .LC0 ldr q0, [x0, #:lo12:.LC0] ret i.e. a load, but with this change: f1: fmov v0.4s, 1.0e+0 ret Such immediates are common in e.g. our Math routines in glibc because they are created to extract or mark part of an FP immediate as masks. gcc/ChangeLog: * config/aarch64/aarch64.cc (aarch64_sve_valid_immediate, aarch64_simd_valid_immediate): Refactor accepting modes and values. (aarch64_float_const_representable_p): Refactor and extract FP checks into ... (aarch64_real_float_const_representable_p): ...This and fix fail fallback from real_to_integer. (aarch64_advsimd_valid_immediate): Use it. gcc/testsuite/ChangeLog: * gcc.target/aarch64/const_create_using_fmov.c: New test. |
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c++tools | ||
config | ||
contrib | ||
fixincludes | ||
gcc | ||
gnattools | ||
gotools | ||
include | ||
INSTALL | ||
libada | ||
libatomic | ||
libbacktrace | ||
libcc1 | ||
libcody | ||
libcpp | ||
libdecnumber | ||
libffi | ||
libgcc | ||
libgfortran | ||
libgm2 | ||
libgo | ||
libgomp | ||
libgrust | ||
libiberty | ||
libitm | ||
libobjc | ||
libphobos | ||
libquadmath | ||
libsanitizer | ||
libssp | ||
libstdc++-v3 | ||
libvtv | ||
lto-plugin | ||
maintainer-scripts | ||
zlib | ||
.b4-config | ||
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.gitattributes | ||
.gitignore | ||
ABOUT-NLS | ||
ar-lib | ||
ChangeLog | ||
ChangeLog.jit | ||
ChangeLog.tree-ssa | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING.LIB | ||
COPYING.RUNTIME | ||
COPYING3 | ||
COPYING3.LIB | ||
depcomp | ||
install-sh | ||
libtool-ldflags | ||
libtool.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
lt~obsolete.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
multilib.am | ||
README | ||
SECURITY.txt | ||
symlink-tree | ||
test-driver | ||
ylwrap |
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