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authorRichard Kenner <kenner@vlsi1.ultra.nyu.edu>2003-04-15 13:06:58 +0000
committerRichard Kenner <kenner@gcc.gnu.org>2003-04-15 09:06:58 -0400
commitd0ccc658cb93a6a31a4324302ff6175244dab968 (patch)
treec4d899366fa1c01553a24de869cc410ef00881bd /gcc
parent29921faf497b685d7a63ce2f16bae9a4f08d1dfd (diff)
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optabs.c (expand_binop): In multi-word add cases, ensure XTARGET is copied to TARGET if they are different.
* optabs.c (expand_binop): In multi-word add cases, ensure XTARGET is copied to TARGET if they are different. From-SVN: r65632
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/optabs.c3
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 092ae7c..4c375c0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-04-15 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
+
+ * optabs.c (expand_binop): In multi-word add cases, ensure
+ XTARGET is copied to TARGET if they are different.
+
2003-04-15 Olivier Hainque <hainque@act-europe.fr>
* except.c (resolve_fixup_regions): Avoid dereferencing null pointer
diff --git a/gcc/optabs.c b/gcc/optabs.c
index 59f7147..f57c814 100644
--- a/gcc/optabs.c
+++ b/gcc/optabs.c
@@ -1299,7 +1299,8 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods)
if (i == GET_MODE_BITSIZE (mode) / (unsigned) BITS_PER_WORD)
{
- if (mov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
+ if (mov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing
+ || ! rtx_equal_p (target, xtarget))
{
rtx temp = emit_move_insn (target, xtarget);