procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

genconditions.c (write_header): In generated code...

Browse source 
* genconditions.c (write_header): In generated code, #ifdef out
	all includes and fake declarations, except includes of bconfig.h
	and system.h, unless GCC_VERSION >= 3001.  Do not include
	gensupport.h in any case.
	(write_conditions): Generate a definition of struct c_test.  Add
	a comment to the generated #endif.
	(write_one_condition): Escape backslashes in string too.
	(write_writer): Generated code must escape backslashes and quote
	marks (but not newlines) in the strings it writes.
	* Makefile.in (build/gencondmd.o): Update dependencies.

From-SVN: r110275
This commit is contained in:
Zack Weinberg 2006-01-26 21:21:42 +00:00
parent 63622a8169
commit f7c8e4fc33
3 changed files with 84 additions and 39 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
gcc/ChangeLog
View file

@ -1,3 +1,16 @@
2006-01-26 Zack Weinberg <zackw@panix.com>
* genconditions.c (write_header): In generated code, #ifdef out
all includes and fake declarations, except includes of bconfig.h
and system.h, unless GCC_VERSION >= 3001. Do not include
gensupport.h in any case.
(write_conditions): Generate a definition of struct c_test. Add
a comment to the generated #endif.
(write_one_condition): Escape backslashes in string too.
(write_writer): Generated code must escape backslashes and quote
marks (but not newlines) in the strings it writes.
* Makefile.in (build/gencondmd.o): Update dependencies.
2006-01-26 Steve Ellcey <sje@cup.hp.com>
PR target/25961
@ -30,7 +43,7 @@
constants provided by 80387 instructions in the destination mode.
2006-01-26 Richard Guenther <rguenther@suse.de>
Andrew Pinski <pinskia@physics.uc.edu>
Andrew Pinski <pinskia@physics.uc.edu>
PR tree-opt/21470
partial PR tree-opt/17064
@ -212,7 +225,7 @@
rather than find_pool_constant.
(get_pool_constant_for_function): Delete.
(get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
find_pool_constant.
find_pool_constant.
* rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
(X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
(SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
@ -288,10 +301,10 @@
2006-01-23 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/25890
PR rtl-optimization/25905
* combine.c (expand_compound_operation, expand_field_assignment):
Fail if the bitfield's final position is out of bounds.
PR rtl-optimization/25890
PR rtl-optimization/25905
* combine.c (expand_compound_operation, expand_field_assignment):
Fail if the bitfield's final position is out of bounds.
2006-01-24 Ian Lance Taylor <ian@airs.com>
@ -301,7 +314,7 @@
2006-01-23 Adam Nemet <anemet@caviumnetworks.com>
* fix-header.c (read_scan_file): Add new parameter imultilib when
* fix-header.c (read_scan_file): Add new parameter imultilib when
calling register_include_chains.
2006-01-23 Diego Novillo <dnovillo@redhat.com>
@ -313,7 +326,7 @@
PR tree-opt/25315
PR tree-opt/25857
* tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
* tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
return from the function.
2006-01-22 Zack Weinberg <zackw@panix.com>

8
gcc/Makefile.in
View file

@ -2900,10 +2900,10 @@ build/rtl.o: rtl.c $(BCONFIG_H) coretypes.h $(GTM_H) $(SYSTEM_H) \
$(RTL_H) real.h $(GGC_H) errors.h
build/vec.o : vec.c $(CONFIG_H) $(SYSTEM_H) $(TREE_H) coretypes.h vec.h \
$(GGC_H) toplev.h
build/gencondmd.o : build/gencondmd.c $(CONFIG_H) $(SYSTEM_H) $(GTM_H) \
$(RTL_H) $(TM_P_H) $(REGS_H) $(FUNCTION_H) $(RECOG_H) real.h output.h \
$(FLAGS_H) hard-reg-set.h $(RESOURCE_H) toplev.h reload.h \
gensupport.h insn-constants.h coretypes.h
build/gencondmd.o : build/gencondmd.c $(BCONFIG_H) $(SYSTEM_H) \
coretypes.h $(GTM_H) insn-constants.h $(RTL_H) $(TM_P_H) \
$(FUNCTION_H) $(REGS_H) $(RECOG_H) real.h output.h $(FLAGS_H) \
$(RESOURCE_H) toplev.h reload.h except.h
# ...these are the programs themselves.
build/genattr.o : genattr.c $(RTL_BASE_H) $(BCONFIG_H) $(SYSTEM_H) \

86
gcc/genconditions.c
View file

@ -52,9 +52,14 @@ write_header (void)
machine description file. */\n\
\n\
#include \"bconfig.h\"\n\
#include \"insn-constants.h\"\n");
#include \"system.h\"\n");
puts ("\
/* It is necessary, but not entirely safe, to include the headers below\n\
in a generator program. As a defensive measure, don't do so when the\n\
table isn't going to have anything in it. */\n\
#if GCC_VERSION >= 3001\n\
\n\
/* Do not allow checking to confuse the issue. */\n\
#undef ENABLE_CHECKING\n\
#undef ENABLE_TREE_CHECKING\n\
@ -64,9 +69,9 @@ write_header (void)
#undef ENABLE_GC_ALWAYS_COLLECT\n");
puts ("\
#include \"system.h\"\n\
#include \"coretypes.h\"\n\
#include \"tm.h\"\n\
#include \"insn-constants.h\"\n\
#include \"rtl.h\"\n\
#include \"tm_p.h\"\n\
#include \"function.h\"\n");
@ -86,8 +91,7 @@ write_header (void)
#include \"hard-reg-set.h\"\n\
#include \"resource.h\"\n\
#include \"toplev.h\"\n\
#include \"reload.h\"\n\
#include \"gensupport.h\"\n");
#include \"reload.h\"\n");
if (saw_eh_return)
puts ("#define HAVE_eh_return 1");
@ -97,7 +101,9 @@ write_header (void)
/* Dummy external declarations. */\n\
extern rtx insn;\n\
extern rtx ins1;\n\
extern rtx operands[];\n");
extern rtx operands[];\n\
\n\
#endif /* gcc >= 3.0.1 */\n");
}
/* Write out one entry in the conditions table, using the data pointed
@ -118,12 +124,14 @@ write_one_condition (void **slot, void * ARG_UNUSED (dummy))
fputs (" { \"", stdout);
for (p = test->expr; *p; p++)
{
if (*p == '\n')
fputs ("\\n\\\n", stdout);
else if (*p == '"')
fputs ("\\\"", stdout);
else
putchar (*p);
switch (*p)
{
case '\n': fputs ("\\n\\", stdout); break;
case '\\':
case '\"': putchar ('\\'); break;
default: break;
}
putchar (*p);
}
printf ("\",\n __builtin_constant_p ");
@ -139,21 +147,30 @@ write_one_condition (void **slot, void * ARG_UNUSED (dummy))
static void
write_conditions (void)
{
puts ("\
/* Structure definition duplicated from gensupport.h rather than\n\
drag in that file and its dependencies. */\n\
struct c_test\n\
{\n\
const char *expr;\n\
int value;\n\
};\n");
puts ("\
/* This table lists each condition found in the machine description.\n\
Each condition is mapped to its truth value (0 or 1), or -1 if that\n\
cannot be calculated at compile time. */\n\
\n\
static const struct c_test insn_conditions[] = {\n \
/* If we don't have __builtin_constant_p, or it's not acceptable in array\n\
cannot be calculated at compile time.\n\
If we don't have __builtin_constant_p, or it's not acceptable in array\n\
initializers, fall back to assuming that all conditions potentially\n\
vary at run time. It works in 3.0.1 and later; 3.0 only when not\n\
optimizing. */\n\
#if GCC_VERSION >= 3001");
\n\
static const struct c_test insn_conditions[] = {\n\
#if GCC_VERSION >= 3001\n");
traverse_c_tests (write_one_condition, 0);
puts ("#endif\n};\n");
puts ("\n#endif /* gcc >= 3.0.1 */\n};\n");
}
/* Emit code which will convert the C-format table to a
@ -163,16 +180,31 @@ static const struct c_test insn_conditions[] = {\n \
static void
write_writer (void)
{
puts ("int\nmain(void)\n{\n\
unsigned int i;\n\
\n\
puts (\"(define_conditions [\");\n\
for (i = 0; i < ARRAY_SIZE (insn_conditions); i++)\n\
printf (\" (%d \\\"%s\\\")\\n\",\n\
insn_conditions[i].value, insn_conditions[i].expr);\n\
puts (\"])\");\n\
fflush (stdout);\n\
return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);\n}");
puts ("int\n"
"main(void)\n"
"{\n"
" unsigned int i;\n"
" const char *p;\n"
" puts (\"(define_conditions [\");\n"
" for (i = 0; i < ARRAY_SIZE (insn_conditions); i++)\n"
" {\n"
" printf (\" (%d \\\"\", insn_conditions[i].value);\n"
" for (p = insn_conditions[i].expr; *p; p++)\n"
" {\n"
" switch (*p)\n"
" {\n"
" case '\\\\':\n"
" case '\\\"': putchar ('\\\\'); break;\n"
" default: break;\n"
" }\n"
" putchar (*p);\n"
" }\n"
" puts (\"\\\")\");\n"
" }");
puts (" puts (\"])\");\n"
" fflush (stdout);\n"
"return ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE;\n"
"}");
}
int