From 1deff3dca1b11fd7089bb641f6ee99adedeb8d0b Mon Sep 17 00:00:00 2001 From: Peter Collingbourne Date: Wed, 15 May 2013 20:33:45 +0200 Subject: [PATCH] Use movq for 64-bit operations The EXTRACT_WORDS64 and INSERT_WORDS64 macros use movd for a 64-bit operation. Somehow gcc manages to turn this into movq, but LLVM won't. 2013-05-15 Peter Collingbourne * sysdeps/x86_64/fpu/math_private.h (MOVQ): New macro. (EXTRACT_WORDS64) Use where appropriate. (INSERT_WORDS64) Likewise. --- ChangeLog | 4 ++++ sysdeps/x86_64/fpu/math_private.h | 6 ++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/ChangeLog b/ChangeLog index 4550566815..9bdeaafb87 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2013-05-15 Peter Collingbourne + * sysdeps/x86_64/fpu/math_private.h (MOVQ): New macro. + (EXTRACT_WORDS64) Use where appropriate. + (INSERT_WORDS64) Likewise. + * sysdeps/x86_64/fpu/multiarch/s_fma.c (__fma_fma4): Replace xm constraints with x constraints. * sysdeps/x86_64/fpu/multiarch/s_fmaf.c (__fmaf_fma4): Likewise. diff --git a/sysdeps/x86_64/fpu/math_private.h b/sysdeps/x86_64/fpu/math_private.h index 63a699e8fc..027a6a3a4d 100644 --- a/sysdeps/x86_64/fpu/math_private.h +++ b/sysdeps/x86_64/fpu/math_private.h @@ -5,15 +5,17 @@ #if defined __AVX__ || defined SSE2AVX # define MOVD "vmovd" +# define MOVQ "vmovq" #else # define MOVD "movd" +# define MOVQ "movq" #endif /* Direct movement of float into integer register. */ #define EXTRACT_WORDS64(i, d) \ do { \ int64_t i_; \ - asm (MOVD " %1, %0" : "=rm" (i_) : "x" ((double) (d))); \ + asm (MOVQ " %1, %0" : "=rm" (i_) : "x" ((double) (d))); \ (i) = i_; \ } while (0) @@ -22,7 +24,7 @@ do { \ int64_t i_ = i; \ double d__; \ - asm (MOVD " %1, %0" : "=x" (d__) : "rm" (i_)); \ + asm (MOVQ " %1, %0" : "=x" (d__) : "rm" (i_)); \ d = d__; \ } while (0)