diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/s_copysign.S | 19 |
2 files changed, 17 insertions, 8 deletions
@@ -1,3 +1,9 @@ +2002-08-31 Andreas Jaeger <aj@suse.de> + + * sysdeps/x86_64/fpu/s_copysign.S: Fix algorithm. + + * sysdeps/x86_64/fpu/libm-test-ulps: Add ulps for double tests. + 2002-08-31 Ulrich Drepper <drepper@redhat.com> * stdio-common/Makefile (generated): Add errlist-compat.c. diff --git a/sysdeps/x86_64/fpu/s_copysign.S b/sysdeps/x86_64/fpu/s_copysign.S index acb4c3a..f1ebcf8 100644 --- a/sysdeps/x86_64/fpu/s_copysign.S +++ b/sysdeps/x86_64/fpu/s_copysign.S @@ -27,10 +27,14 @@ #endif .align ALIGNARG(4) - ASM_TYPE_DIRECTIVE(mask,@object) -mask: + ASM_TYPE_DIRECTIVE(signmask,@object) +signmask: .byte 0, 0, 0, 0, 0, 0, 0, 0x80 - ASM_SIZE_DIRECTIVE(mask) + .byte 0, 0, 0, 0, 0, 0, 0, 0 +othermask: + .byte 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f + .byte 0, 0, 0, 0, 0, 0, 0, 0 + ASM_SIZE_DIRECTIVE(othermask) #ifdef PIC #define MO(op) op##(%rip) @@ -39,11 +43,10 @@ mask: #endif ENTRY(__copysign) - movlpd MO(mask),%xmm3 - andps %xmm3,%xmm0 - andnpd %xmm1,%xmm3 - orpd %xmm3,%xmm0 - retq + andpd MO(othermask),%xmm0 + andpd MO(signmask),%xmm1 + orpd %xmm1,%xmm0 + ret END (__copysign) weak_alias (__copysign, copysign) |