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| author | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-09-23 12:05:56 +0000 |
|---|---|---|
| committer | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-09-23 12:05:56 +0000 |
| commit | 71fceab6594e18e87d3d751e90034fb8e1b019cc (patch) | |
| tree | 23b5a8404a7780586596776a9272a0da25116014 | |
| parent | d431b2cae597afbe272e95bcd7ac60d7d9368cf7 (diff) | |
| download | ppe42-gcc-71fceab6594e18e87d3d751e90034fb8e1b019cc.tar.gz ppe42-gcc-71fceab6594e18e87d3d751e90034fb8e1b019cc.zip | |
PR rtl-optimization/23837
* optabs.c (no_conflict_move_test): Don't set must_stay for a
clobber / clobber match between dest and p->first.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@104562 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/optabs.c | 3 |
2 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index df183299652..db68f2ae8ec 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -3,6 +3,10 @@ * final.c (insn_default_length, insn_min_length): In !HAVE_ATTR_length case, define as macros. + PR rtl-optimization/23837 + * optabs.c (no_conflict_move_test): Don't set must_stay for a + clobber / clobber match between dest and p->first. + 2005-09-22 Ranjit Mathew <rmathew@gcc.gnu.org> * doc/install.texi: Update URL for Jacks. diff --git a/gcc/optabs.c b/gcc/optabs.c index bcb11b5432f..5da604d6e27 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -3021,7 +3021,8 @@ no_conflict_move_test (rtx dest, rtx set, void *p0) return; /* If this insn sets / clobbers a register that feeds one of the insns already in the list, this insn has to stay too. */ - else if (reg_mentioned_p (dest, PATTERN (p->first)) + else if (reg_overlap_mentioned_p (dest, PATTERN (p->first)) + || (CALL_P (p->first) && (find_reg_fusage (p->first, USE, dest))) || reg_used_between_p (dest, p->first, p->insn) /* Likewise if this insn depends on a register set by a previous insn in the list. */ |
