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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-09-27 01:07:52 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-09-27 01:07:52 +0000 |
| commit | a35ad173284e5bf81ab2b96cfac54de9c6112eed (patch) | |
| tree | e2337b29df7ee8cd75e9e85c7c8e9c9f604f9f70 /gcc/sched-deps.c | |
| parent | e6976944d838d65cc73b222c2d2e341561b6c10d (diff) | |
| download | gcc-a35ad173284e5bf81ab2b96cfac54de9c6112eed.tar.gz | |
* sched-deps.c (sched_analyze_insn): Make clobber insns depend
on call insns.
* gcc.c-torture/compile/20020926-1.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@57566 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sched-deps.c')
| -rw-r--r-- | gcc/sched-deps.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c index 32260a89f50..cf762cccb58 100644 --- a/gcc/sched-deps.c +++ b/gcc/sched-deps.c @@ -922,7 +922,15 @@ sched_analyze_insn (deps, x, insn, loop_notes) code = GET_CODE (x); } if (code == SET || code == CLOBBER) - sched_analyze_1 (deps, x, insn); + { + sched_analyze_1 (deps, x, insn); + + /* Bare clobber insns are used for letting life analysis, reg-stack + and others know that a value is dead. Depend on the last call + instruction so that reg-stack won't get confused. */ + if (code == CLOBBER) + add_dependence_list (insn, deps->last_function_call, REG_DEP_OUTPUT); + } else if (code == PARALLEL) { int i; |