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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-27 08:11:00 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-27 08:11:00 +0000 |
| commit | f68ab9c535c26d62063f272878415869effc0ef6 (patch) | |
| tree | 82f89cd593836e6dde39d01355a3d09a04bf4b68 /gcc/regrename.c | |
| parent | 3837145e915629df63e49cbaa41580a006fe49e5 (diff) | |
| download | gcc-f68ab9c535c26d62063f272878415869effc0ef6.tar.gz | |
* regrename.c (copy_value): Fix comment.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101351 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/regrename.c')
| -rw-r--r-- | gcc/regrename.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/regrename.c b/gcc/regrename.c index 91e9d71a9a1..3a596ff35df 100644 --- a/gcc/regrename.c +++ b/gcc/regrename.c @@ -1225,7 +1225,9 @@ copy_value (rtx dest, rtx src, struct value_data *vd) if (frame_pointer_needed && dr == HARD_FRAME_POINTER_REGNUM) return; - /* Likewise for fixed or global registers. */ + /* Do not propagate copies to fixed or global registers, patterns + can be relying to see particular fixed register or users can + expect the chosen global register in asm. */ if (fixed_regs[dr] || global_regs[dr]) return; |