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| author | Richard Henderson <rth@cygnus.com> | 2000-04-17 09:49:00 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2000-04-17 09:49:00 -0700 |
| commit | 994a57cd287e37aaaf909fc1ae671e54b1b360c4 (patch) | |
| tree | 463f2ea9fd7c3ba92418e1563975dde99f0150de /gcc/c-common.c | |
| parent | 2be5e524b0ce96881e40a84d0355f40edd82e07e (diff) | |
| download | gcc-994a57cd287e37aaaf909fc1ae671e54b1b360c4.zip gcc-994a57cd287e37aaaf909fc1ae671e54b1b360c4.tar.gz gcc-994a57cd287e37aaaf909fc1ae671e54b1b360c4.tar.bz2 | |
builtins.c (expand_builtin_expect): New.
* builtins.c (expand_builtin_expect): New.
(expand_builtin): Call it.
* builtins.def (BUILT_IN_EXPECT): New.
* c-common.c (c_common_nodes_and_builtins): Declare __builtin_expect.
* extend.texi: Document it.
* predict.c (expected_value_to_br_prob): New.
(find_expected_value): New.
* basic-block.h (expected_value_to_br_prob): Declare.
* toplev.c (rest_of_compilation): Invoke it.
* rtl.h (NOTE_EXPECTED_VALUE): New.
(NOTE_INSN_EXPECTED_VALUE): New.
* rtl.c (note_insn_name): Update.
* print-rtl.c (print_rtx): Reorg NOTE_LINE_NUMBER special
cases; handle NOTE_INSN_EXPECTED_VALUE.
From-SVN: r33211
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index 1033035..386721a 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -3767,6 +3767,16 @@ c_common_nodes_and_builtins (cplus_mode, no_builtins, no_nonansi_builtins) endlink))), BUILT_IN_VA_COPY, BUILT_IN_NORMAL, NULL_PTR); + /* ??? Ought to be `T __builtin_expect(T, T)' for any type T. */ + builtin_function ("__builtin_expect", + build_function_type (long_integer_type_node, + tree_cons (NULL_TREE, + long_integer_type_node, + tree_cons (NULL_TREE, + long_integer_type_node, + endlink))), + BUILT_IN_EXPECT, BUILT_IN_NORMAL, NULL_PTR); + /* Currently under experimentation. */ builtin_function ("__builtin_memcpy", memcpy_ftype, BUILT_IN_MEMCPY, BUILT_IN_NORMAL, "memcpy"); |