From 537d4fa684f272ea72c1c8db58e4f1dcd3b7cda4 Mon Sep 17 00:00:00 2001
From: Uros Bizjak <ubizjak@gmail.com>
Date: Wed, 7 May 2008 09:19:01 +0200
Subject: [PATCH] i386.c (ix86_expand_copysign): Force non-zero constant TFmode
op0 to register.
* config/i386/i386.c (ix86_expand_copysign): Force non-zero constant
TFmode op0 to register.
From-SVN: r135025
---
gcc/ChangeLog | 5 +++++
gcc/config/i386/i386.c | 10 ++++++++--
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2a12ec1431ae..f35a21b5eeee 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-05-08 Uros Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.c (ix86_expand_copysign): Force non-zero constant
+ TFmode op0 to register.
+
2008-05-07 Alan Modra <amodra@bigpond.net.au>
* c-decl.c (grokdeclarator): Comment typo.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index d0ebd80822ed..b123fa09e532 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -11245,7 +11245,7 @@ ix86_expand_fp_absneg_operator (enum rtx_code code, enum machine_mode mode,
void
ix86_expand_copysign (rtx operands[])
{
- enum machine_mode mode, vmode;
+ enum machine_mode mode;
rtx dest, op0, op1, mask, nmask;
dest = operands[0];
@@ -11253,7 +11253,6 @@ ix86_expand_copysign (rtx operands[])
op1 = operands[2];
mode = GET_MODE (dest);
- vmode = mode == SFmode ? V4SFmode : V2DFmode;
if (GET_CODE (op0) == CONST_DOUBLE)
{
@@ -11264,6 +11263,10 @@ ix86_expand_copysign (rtx operands[])
if (mode == SFmode || mode == DFmode)
{
+ enum machine_mode vmode;
+
+ vmode = mode == SFmode ? V4SFmode : V2DFmode;
+
if (op0 == CONST0_RTX (mode))
op0 = CONST0_RTX (vmode);
else
@@ -11275,9 +11278,12 @@ ix86_expand_copysign (rtx operands[])
CONST0_RTX (SFmode), CONST0_RTX (SFmode));
else
v = gen_rtvec (2, op0, CONST0_RTX (DFmode));
+
op0 = force_reg (vmode, gen_rtx_CONST_VECTOR (vmode, v));
}
}
+ else if (op0 != CONST0_RTX (mode))
+ op0 = force_reg (mode, op0);
mask = ix86_build_signbit_mask (mode, 0, 0);
--
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