cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.

gcc/ * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p. From-SVN: r121339

cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
gcc/ * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p. From-SVN: r121339
9caea4a7 · Richard Sandiford · Richard Sandiford · ba9f17df · 9caea4a7 · 9caea4a7
Commit 9caea4a7 authored 18 years ago by Richard Sandiford Committed by Richard Sandiford 18 years ago
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gcc/ChangeLog
+4 -0

gcc/cfgrtl.c
+2 -1

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2007-01-30  Richard Sandiford  <richard@codesourcery.com>
+
+	* cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
+
 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>

 	* builtins.c (expand_builtin_int_interclass_roundingfn): New function

--- a/gcc/cfgrtl.c
+++ b/gcc/cfgrtl.c
@@ -728,7 +728,8 @@ try_redirect_by_replacing_jump (edge e, basic_block target, bool in_cfglayout)
     the cc0 setter too.  */
  kill_from = insn;
 #ifdef HAVE_cc0
-  if (reg_mentioned_p (cc0_rtx, PATTERN (insn)))
+  if (reg_mentioned_p (cc0_rtx, PATTERN (insn))
+      && only_sets_cc0_p (PREV_INSN (insn)))
    kill_from = PREV_INSN (insn);
 #endif