diff options
| author | mkuvyrkov <mkuvyrkov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-10-06 21:45:13 +0000 |
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| committer | mkuvyrkov <mkuvyrkov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-10-06 21:45:13 +0000 |
| commit | 2521f35f9132bb59f321a72ac3096f3c4091236d (patch) | |
| tree | d4aed27cfc02ff872c40550b81096f52a7e90e14 /gcc/sched-int.h | |
| parent | ecfed7a2cc19c7b913a8f4752c138aac5ae4b01d (diff) | |
| download | gcc-2521f35f9132bb59f321a72ac3096f3c4091236d.tar.gz | |
2006-10-06 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
PR rtl-optimization/29128
* sched-int.h (IS_SPECULATION_BRANCHY_CHECK_P): New macro.
* sched-ebb.c (advance_target_bb): Use it to fix condition to
allow interblock movement of speculation checks.
* gcc.c-torture/compile/pr29128.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@117515 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sched-int.h')
| -rw-r--r-- | gcc/sched-int.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/sched-int.h b/gcc/sched-int.h index 3ce0379ce43..3865013b9df 100644 --- a/gcc/sched-int.h +++ b/gcc/sched-int.h @@ -359,6 +359,13 @@ extern regset *glat_start, *glat_end; #define RECOVERY_BLOCK(INSN) (h_i_d[INSN_UID (INSN)].recovery_block) #define ORIG_PAT(INSN) (h_i_d[INSN_UID (INSN)].orig_pat) +/* INSN is a speculation check that will branch to RECOVERY_BLOCK if the + speculation fail. Insns in that block will reexecute the speculatively + scheduled code and then will return immediatelly after INSN thus preserving + semantics of the program. */ +#define IS_SPECULATION_BRANCHY_CHECK_P(INSN) \ + (RECOVERY_BLOCK (INSN) != NULL && RECOVERY_BLOCK (INSN) != EXIT_BLOCK_PTR) + /* DEP_STATUS of the link encapsulates information, that is needed for speculative scheduling. Namely, it is 4 integers in the range [0, MAX_DEP_WEAK] and 3 bits. |