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| author | spark <spark@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-03-22 06:18:33 +0000 |
|---|---|---|
| committer | spark <spark@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-03-22 06:18:33 +0000 |
| commit | 02f07e876bbbb086765d8dae9e509b082af46018 (patch) | |
| tree | 403ae4e99ca1f42ff11e7679dee90462b345a543 /gcc/regmove.c | |
| parent | 0fd26eebeb4bfcd59e0219d40aac8204248f0566 (diff) | |
| download | gcc-02f07e876bbbb086765d8dae9e509b082af46018.tar.gz | |
2007-03-21 Seongbae Park <seongbae.park@gmail.com>
* regmove.c (regmove_optimize): Use reg_mentioned_p
instead of reg_overlap_mentioned_p for DST.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@123124 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/regmove.c')
| -rw-r--r-- | gcc/regmove.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/regmove.c b/gcc/regmove.c index 4bd5d1da991..3c059f44a78 100644 --- a/gcc/regmove.c +++ b/gcc/regmove.c @@ -1429,8 +1429,13 @@ regmove_optimize (rtx f, int nregs) break; } + /* We can't make this change if SRC is read or + partially written in P, since we are going to + eliminate SRC. We can't make this change + if DST is mentioned at all in P, + since we are going to change its value. */ if (reg_overlap_mentioned_p (src, PATTERN (p)) - || reg_overlap_mentioned_p (dst, PATTERN (p))) + || reg_mentioned_p (dst, PATTERN (p))) break; /* If we have passed a call instruction, and the |