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| author | John Carr <jfc@mit.edu> | 1998-06-17 16:14:09 +0000 |
|---|---|---|
| committer | John Carr <jfc@gcc.gnu.org> | 1998-06-17 16:14:09 +0000 |
| commit | e0cd077072ade89c9aee0cabc8be0c5a6ebb23cf (patch) | |
| tree | bc08309af18e3e3b81d9dde6d23a1abd41673ffe /gcc/haifa-sched.c | |
| parent | 4fdf79cb6764f8c57b4c4deaabd6131850535263 (diff) | |
| download | gcc-e0cd077072ade89c9aee0cabc8be0c5a6ebb23cf.zip gcc-e0cd077072ade89c9aee0cabc8be0c5a6ebb23cf.tar.gz gcc-e0cd077072ade89c9aee0cabc8be0c5a6ebb23cf.tar.bz2 | |
haifa-sched.c (haifa_classify_insn): TRAP_IF is risky.
* haifa-sched.c (haifa_classify_insn): TRAP_IF is risky.
(sched_analyze_2): Allow scheduling TRAP_IF.
* reorg.c (mark_referenced_resources): Examine operands of TRAP_IF.
* rtl.h (TRAP_CODE): New macro.
* rtl.def (TRAP_IF): Change second operand type to rtx.
* optabs.c (gen_cond_trap): New function.
(init_traps): New function.
(init_optabs): Call init_traps.
* expr.h: Declare gen_cond_trap.
* jump.c (jump_optimize): Optimize jumps to and around traps.
* sparc.md: Define trap instructions.
* rs6000.md: Define trap instructions.
* rs6000.c (print_operand): New code 'V' for trap condition.
(trap_comparison_operator): New function.
* m88k.md: Update use of TRAP_IF.
* tree.h (enum built_in_function): New function code BUILT_IN_TRAP.
* c-decl.c (init_decl_processing): New builtin __builtin_trap.
* expr.c (expand_builtin): Handle BUILT_IN_TRAP.
* expr.c (expand_builtin): Error if __builtin_longjmp second argument
is not 1.
From-SVN: r20543
Diffstat (limited to 'gcc/haifa-sched.c')
| -rw-r--r-- | gcc/haifa-sched.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index 8267170..2416a83 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -2629,6 +2629,10 @@ haifa_classify_insn (insn) tmp_class = WORST_CLASS (tmp_class, may_trap_exp (SET_SRC (XVECEXP (pat, 0, i)), 0)); + break; + case TRAP_IF: + tmp_class = TRAP_RISKY; + break; default:; } insn_class = WORST_CLASS (insn_class, tmp_class); @@ -2654,6 +2658,10 @@ haifa_classify_insn (insn) tmp_class = WORST_CLASS (tmp_class, may_trap_exp (SET_SRC (pat), 0)); + break; + case TRAP_IF: + tmp_class = TRAP_RISKY; + break; default:; } insn_class = tmp_class; @@ -3560,10 +3568,14 @@ sched_analyze_2 (x, insn) return; } + /* Force pending stores to memory in case a trap handler needs them. */ + case TRAP_IF: + flush_pending_lists (insn, 1); + break; + case ASM_OPERANDS: case ASM_INPUT: case UNSPEC_VOLATILE: - case TRAP_IF: { rtx u; |