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tree-inline.c (eni_inlining_weights): Remove. 

* tree-inline.c (eni_inlining_weights): Remove.
	(estimate_num_insns): Special case more builtins.

From-SVN: r158766
This commit is contained in:
Jan Hubicka 2010-04-27 07:41:33 +02:00 committed by Jan Hubicka
parent 637f14555e
commit d89488ec13
3 changed files with 85 additions and 13 deletions
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5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2010-04-27 Jan Hubicka <jh@suse.cz>
* tree-inline.c (eni_inlining_weights): Remove.
(estimate_num_insns): Special case more builtins.
2010-04-27 Shujing Zhao <pearly.zhao@oracle.com>
PR c/32207

2
gcc/testsuite/g++.dg/warn/string1.C
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@ -2,7 +2,7 @@
// { dg-options "-O" }
#include <string>
int main() {
int test() {
// blank line padding, could also be code...
//
//

91
gcc/tree-inline.c
View File

@ -101,10 +101,6 @@ along with GCC; see the file COPYING3. If not see
calls? */
/* Weights that estimate_num_insns uses for heuristics in inlining. */
eni_weights eni_inlining_weights;
/* Weights that estimate_num_insns uses to estimate the size of the
produced code. */
@ -3268,22 +3264,93 @@ estimate_num_insns (gimple stmt, eni_weights *weights)
if (decl && DECL_BUILT_IN_CLASS (decl) == BUILT_IN_NORMAL)
switch (DECL_FUNCTION_CODE (decl))
{
/* Builtins that expand to constants. */
case BUILT_IN_CONSTANT_P:
return 0;
case BUILT_IN_EXPECT:
return 0;
/* Prefetch instruction is not expensive. */
case BUILT_IN_PREFETCH:
cost = weights->target_builtin_call_cost;
break;
case BUILT_IN_OBJECT_SIZE:
case BUILT_IN_UNREACHABLE:
/* Simple register moves or loads from stack. */
case BUILT_IN_RETURN_ADDRESS:
case BUILT_IN_EXTRACT_RETURN_ADDR:
case BUILT_IN_FROB_RETURN_ADDR:
case BUILT_IN_RETURN:
case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
case BUILT_IN_FRAME_ADDRESS:
case BUILT_IN_VA_END:
case BUILT_IN_STACK_SAVE:
case BUILT_IN_STACK_RESTORE:
/* Exception state returns or moves registers around. */
case BUILT_IN_EH_FILTER:
case BUILT_IN_EH_POINTER:
case BUILT_IN_EH_COPY_VALUES:
return 0;
/* builtins that are not expensive (that is they are most probably
expanded inline into resonably simple code). */
case BUILT_IN_ABS:
case BUILT_IN_ALLOCA:
case BUILT_IN_BSWAP32:
case BUILT_IN_BSWAP64:
case BUILT_IN_CLZ:
case BUILT_IN_CLZIMAX:
case BUILT_IN_CLZL:
case BUILT_IN_CLZLL:
case BUILT_IN_CTZ:
case BUILT_IN_CTZIMAX:
case BUILT_IN_CTZL:
case BUILT_IN_CTZLL:
case BUILT_IN_FFS:
case BUILT_IN_FFSIMAX:
case BUILT_IN_FFSL:
case BUILT_IN_FFSLL:
case BUILT_IN_IMAXABS:
case BUILT_IN_FINITE:
case BUILT_IN_FINITEF:
case BUILT_IN_FINITEL:
case BUILT_IN_FINITED32:
case BUILT_IN_FINITED64:
case BUILT_IN_FINITED128:
case BUILT_IN_FPCLASSIFY:
case BUILT_IN_ISFINITE:
case BUILT_IN_ISINF_SIGN:
case BUILT_IN_ISINF:
case BUILT_IN_ISINFF:
case BUILT_IN_ISINFL:
case BUILT_IN_ISINFD32:
case BUILT_IN_ISINFD64:
case BUILT_IN_ISINFD128:
case BUILT_IN_ISNAN:
case BUILT_IN_ISNANF:
case BUILT_IN_ISNANL:
case BUILT_IN_ISNAND32:
case BUILT_IN_ISNAND64:
case BUILT_IN_ISNAND128:
case BUILT_IN_ISNORMAL:
case BUILT_IN_ISGREATER:
case BUILT_IN_ISGREATEREQUAL:
case BUILT_IN_ISLESS:
case BUILT_IN_ISLESSEQUAL:
case BUILT_IN_ISLESSGREATER:
case BUILT_IN_ISUNORDERED:
case BUILT_IN_VA_ARG_PACK:
case BUILT_IN_VA_ARG_PACK_LEN:
case BUILT_IN_VA_COPY:
case BUILT_IN_TRAP:
case BUILT_IN_SAVEREGS:
case BUILT_IN_POPCOUNTL:
case BUILT_IN_POPCOUNTLL:
case BUILT_IN_POPCOUNTIMAX:
case BUILT_IN_POPCOUNT:
case BUILT_IN_PARITYL:
case BUILT_IN_PARITYLL:
case BUILT_IN_PARITYIMAX:
case BUILT_IN_PARITY:
case BUILT_IN_LABS:
case BUILT_IN_LLABS:
case BUILT_IN_PREFETCH:
cost = weights->target_builtin_call_cost;
break;
default:
break;
}