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| author | rearnsha <rearnsha@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-12-17 18:20:44 +0000 |
|---|---|---|
| committer | rearnsha <rearnsha@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-12-17 18:20:44 +0000 |
| commit | 074d3abfc29528889ff1b5255164dd3c6674f8bb (patch) | |
| tree | 3b8f3128870804afa995de3969a976ec511b144c /gcc/caller-save.c | |
| parent | cc4faf1247448daa00b26b6212ff71f515b1d803 (diff) | |
| download | gcc-074d3abfc29528889ff1b5255164dd3c6674f8bb.tar.gz | |
PR optimization/10592
* caller-save.c (mark_referenced_regs): Don't short-circuit a reg
or subreg in SET_DEST if it isn't a hard register.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@74747 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/caller-save.c')
| -rw-r--r-- | gcc/caller-save.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/caller-save.c b/gcc/caller-save.c index 9a0a4e3fbfd..6eaa533d433 100644 --- a/gcc/caller-save.c +++ b/gcc/caller-save.c @@ -568,8 +568,10 @@ mark_referenced_regs (rtx x) { x = SET_DEST (x); code = GET_CODE (x); - if (code == REG || code == PC || code == CC0 + if ((code == REG && REGNO (x) < FIRST_PSEUDO_REGISTER) + || code == PC || code == CC0 || (code == SUBREG && GET_CODE (SUBREG_REG (x)) == REG + && REGNO (SUBREG_REG (x)) < FIRST_PSEUDO_REGISTER /* If we're setting only part of a multi-word register, we shall mark it as referenced, because the words that are not being set should be restored. */ |