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Fix s_copysign stack temp for PowerPC64 ELFv2

Message ID 20140401034612.GY18201@bubble.grove.modra.org
State Committed
Headers

Commit Message

Alan Modra April 1, 2014, 3:46 a.m. UTC 
  Committed as obvious.  ELFv2 doesn't require a parameter save area
on most calls, so use the stack redzone area for stack temps.

    	[BZ #16786]
    	* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Don't trash stack.
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Patch

diff --git a/sysdeps/powerpc/powerpc64/fpu/s_copysign.S b/sysdeps/powerpc/powerpc64/fpu/s_copysign.S
index 51681aa..49c793d 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_copysign.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_copysign.S
@@ -27,11 +27,11 @@  ENTRY(__copysign)
 /* double [f1] copysign (double [f1] x, double [f2] y);
    copysign(x,y) returns a value with the magnitude of x and
    with the sign bit of y.  */
-	stfd	fp2,56(r1)
+	stfd	fp2,-8(r1)
 	nop
 	nop
 	nop
-	ld	r3,56(r1)
+	ld	r3,-8(r1)
 	cmpdi   r3,0
 	blt     L(0)
 	fabs    fp1,fp1