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i386.c (ix86_expand_copysign): Force non-zero constant TFmode op0 to register.

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* config/i386/i386.c (ix86_expand_copysign): Force non-zero constant
	TFmode op0 to register.

From-SVN: r135025
This commit is contained in:
Uros Bizjak 2008-05-07 09:19:01 +02:00 • committed by Uros Bizjak
parent 73f1509d26
commit 537d4fa684
2 changed files with 13 additions and 2 deletions
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5
gcc/ChangeLog
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@ -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.

10
gcc/config/i386/i386.c
View file

@ -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);