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| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-04-27 05:41:33 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-04-27 05:41:33 +0000 |
| commit | 4ad4123ff27f8bf744879f33979bb97e349616dc (patch) | |
| tree | 26f62e78010d4ec5be440d722d9e11971b7255bc /gcc/tree-inline.c | |
| parent | bf8949d14803940563e3973173f74e7d8f93499c (diff) | |
| download | gcc-4ad4123ff27f8bf744879f33979bb97e349616dc.tar.gz | |
* tree-inline.c (eni_inlining_weights): Remove.
(estimate_num_insns): Special case more builtins.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158766 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-inline.c')
| -rw-r--r-- | gcc/tree-inline.c | 91 |
1 files changed, 79 insertions, 12 deletions
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c index 0c1293e6517..9fb9faf0d84 100644 --- a/gcc/tree-inline.c +++ b/gcc/tree-inline.c @@ -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; } |