From 9fd99fa7fb2136182a2f4d6c4184807febd5d6a4 Mon Sep 17 00:00:00 2001
From: rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sun, 7 May 2000 00:38:26 +0000
Subject: [PATCH] * flow.c (mark_set_1): Don't update conditional life
info if the register is not_dead.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33749 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 5 +++++
gcc/flow.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index cca7d64c985f..1c53bd771596 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2000-05-06 Richard Henderson <rth@cygnus.com>
+
+ * flow.c (mark_set_1): Don't update conditional life info
+ if the register is not_dead.
+
2000-05-06 Zack Weinberg <zack@wolery.cumb.org>
* Makefile.in (STAGESTUFF): Add genrtl.c and genrtl.h.
diff --git a/gcc/flow.c b/gcc/flow.c
index 3b6635bec607..5e05b02987e3 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -4252,7 +4252,7 @@ mark_set_1 (pbi, code, reg, cond, insn, flags)
#ifdef HAVE_conditional_execution
/* Consider conditional death in deciding that the register needs
a death note. */
- if (some_was_live
+ if (some_was_live && ! not_dead
/* The stack pointer is never dead. Well, not strictly true,
but it's very difficult to tell from here. Hopefully
combine_stack_adjustments will fix up the most egregious
--
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