diff options
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/gcse.c | 10 |
2 files changed, 9 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 60bfb02..8a2653c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2003-08-05 Josef Zlomek <zlomekj@suse.cz> + + * gcse.c (try_replace_reg): Fix updating of note. + 2003-08-04 Roger Sayle <roger@eyesopen.com> PR middle-end/11771 @@ -3849,6 +3849,11 @@ try_replace_reg (rtx from, rtx to, rtx insn) validate_change (insn, &SET_SRC (set), src, 0); } + /* If there is already a NOTE, update the expression in it with our + replacement. */ + if (note != 0) + XEXP (note, 0) = simplify_replace_rtx (XEXP (note, 0), from, to); + if (!success && set && reg_mentioned_p (from, SET_SRC (set))) { /* If above failed and this is a single set, try to simplify the source of @@ -3869,11 +3874,6 @@ try_replace_reg (rtx from, rtx to, rtx insn) note = set_unique_reg_note (insn, REG_EQUAL, copy_rtx (src)); } - /* If there is already a NOTE, update the expression in it with our - replacement. */ - else if (note != 0) - XEXP (note, 0) = simplify_replace_rtx (XEXP (note, 0), from, to); - /* REG_EQUAL may get simplified into register. We don't allow that. Remove that note. This code ought not to happen, because previous code ought to synthesize |