* regmove.c (copy_src_to_dest): Check that modes match.

From-SVN: r22460

* regmove.c (copy_src_to_dest): Check that modes match.
From-SVN: r22460
9d2106a4 · J"orn Rennecke · Joern Rennecke · fbe39e48 · 9d2106a4 · 9d2106a4
Commit 9d2106a4 authored Sep 17, 1998 by J"orn Rennecke Committed by Joern Rennecke Sep 17, 1998
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gcc/ChangeLog
+4 -0

gcc/regmove.c
+2 -1

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+Thu Sep 17 12:24:33 1998  J"orn Rennecke <amylaar@cygnus.co.uk>
+
+	* regmove.c (copy_src_to_dest): Check that modes match.
+
 Wed Sep 16 22:10:42 1998  Robert Lipe  <robertl@dgii.com>

 	* config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.

--- a/gcc/regmove.c
+++ b/gcc/regmove.c
@@ -617,7 +617,8 @@ copy_src_to_dest (insn, src, dest, loop_depth)
      && GET_CODE (dest) == REG
      && REG_LIVE_LENGTH (REGNO (dest)) > 0
      && (set = single_set (insn)) != NULL_RTX
-      && !reg_mentioned_p (dest, SET_SRC (set)))
+      && !reg_mentioned_p (dest, SET_SRC (set))
+      && GET_MODE (src) == GET_MODE (dest))
    {
      int old_num_regs = reg_rtx_no;