Fix register elimination problem

From-SVN: r40147

Fix register elimination problem
From-SVN: r40147
1abdf5e7 · Bernd Schmidt · Bernd Schmidt · 21e4c9a8 · 1abdf5e7 · 1abdf5e7
Commit 1abdf5e7 authored Mar 01, 2001 by Bernd Schmidt Committed by Bernd Schmidt Mar 01, 2001
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gcc/ChangeLog
+3 -0

gcc/reload1.c
+1 -0

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2001-03-01  Bernd Schmidt  <bernds@redhat.com>

+	* reload1.c (eliminate_regs_in_insn): Restrict the special case
+	code not to try to optimize adds with anything but a REG destination.
+
 	* sched-int.h (struct haifa_insn_data): Add new member priority_known.
 	(INSN_PRIORITY_KNOWN): New accessor macro.
 	* haifa-sched.c (priority): Use it instead of testing priority against

--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -3016,6 +3016,7 @@ eliminate_regs_in_insn (insn, replace)
     currently support: a single set with the source being a PLUS of an
     eliminable register and a constant.  */
  if (old_set
+      && GET_CODE (SET_DEST (old_set)) == REG
      && GET_CODE (SET_SRC (old_set)) == PLUS
      && GET_CODE (XEXP (SET_SRC (old_set), 0)) == REG
      && GET_CODE (XEXP (SET_SRC (old_set), 1)) == CONST_INT