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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-26 05:20:30 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-26 05:20:30 +0000 |
| commit | b94771d1c06454f439ee624f808225b4217cab00 (patch) | |
| tree | d6a8888b030865f9765f3c891a74c2ae292e474b /gcc/regrename.c | |
| parent | d28d5017cf901bd905aad92d8bff736bbce969f9 (diff) | |
| download | gcc-b94771d1c06454f439ee624f808225b4217cab00.tar.gz | |
* regrename.c (copy_value): Don't replace fixed or global
regs with older regs.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101330 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/regrename.c')
| -rw-r--r-- | gcc/regrename.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/regrename.c b/gcc/regrename.c index 0cfe552230f..91e9d71a9a1 100644 --- a/gcc/regrename.c +++ b/gcc/regrename.c @@ -1225,6 +1225,10 @@ 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. */ + if (fixed_regs[dr] || global_regs[dr]) + return; + /* If SRC and DEST overlap, don't record anything. */ dn = hard_regno_nregs[dr][GET_MODE (dest)]; sn = hard_regno_nregs[sr][GET_MODE (dest)]; |