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| author | Nick Lewycky <nlewycky@google.com> | 2015-05-12 18:08:45 -0700 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-05-13 11:59:30 +0200 |
| commit | 891df2a1ae8d54d43288eba41bad653230f4e8df (patch) | |
| tree | 24700cb0185d7fa5a834270fe5dac623d7b1ba26 | |
| parent | 48e9f68384a2af257b9ca7633bf14f0c2748edc6 (diff) | |
| download | ffmpeg-891df2a1ae8d54d43288eba41bad653230f4e8df.tar.gz | |
libswscale/x86/hscale_fast_bilinear_simd.c: There's no need to save BX if it's in the clobber list.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libswscale/x86/hscale_fast_bilinear_simd.c | 61 |
1 files changed, 24 insertions, 37 deletions
diff --git a/libswscale/x86/hscale_fast_bilinear_simd.c b/libswscale/x86/hscale_fast_bilinear_simd.c index 3954fff27c..b37b63c3ec 100644 --- a/libswscale/x86/hscale_fast_bilinear_simd.c +++ b/libswscale/x86/hscale_fast_bilinear_simd.c @@ -196,24 +196,21 @@ void ff_hyscale_fast_mmxext(SwsContext *c, int16_t *dst, int16_t *filter = c->hLumFilter; void *mmxextFilterCode = c->lumMmxextFilterCode; int i; +#if ARCH_X86_64 + uint64_t retsave; +#else #if defined(PIC) uint64_t ebxsave; #endif -#if ARCH_X86_64 - uint64_t retsave; #endif __asm__ volatile( -#if defined(PIC) - "mov %%"REG_b", %5 \n\t" #if ARCH_X86_64 "mov -8(%%rsp), %%"REG_a" \n\t" - "mov %%"REG_a", %6 \n\t" -#endif + "mov %%"REG_a", %5 \n\t" // retsave #else -#if ARCH_X86_64 - "mov -8(%%rsp), %%"REG_a" \n\t" - "mov %%"REG_a", %5 \n\t" +#if defined(PIC) + "mov %%"REG_b", %5 \n\t" // ebxsave #endif #endif "pxor %%mm7, %%mm7 \n\t" @@ -254,25 +251,22 @@ void ff_hyscale_fast_mmxext(SwsContext *c, int16_t *dst, CALL_MMXEXT_FILTER_CODE CALL_MMXEXT_FILTER_CODE -#if defined(PIC) - "mov %5, %%"REG_b" \n\t" -#if ARCH_X86_64 - "mov %6, %%"REG_a" \n\t" - "mov %%"REG_a", -8(%%rsp) \n\t" -#endif -#else #if ARCH_X86_64 "mov %5, %%"REG_a" \n\t" "mov %%"REG_a", -8(%%rsp) \n\t" +#else +#if defined(PIC) + "mov %5, %%"REG_b" \n\t" #endif #endif :: "m" (src), "m" (dst), "m" (filter), "m" (filterPos), "m" (mmxextFilterCode) +#if ARCH_X86_64 + ,"m"(retsave) +#else #if defined(PIC) ,"m" (ebxsave) #endif -#if ARCH_X86_64 - ,"m"(retsave) #endif : "%"REG_a, "%"REG_c, "%"REG_d, "%"REG_S, "%"REG_D #if ARCH_X86_64 || !defined(PIC) @@ -292,24 +286,20 @@ void ff_hcscale_fast_mmxext(SwsContext *c, int16_t *dst1, int16_t *dst2, int16_t *filter = c->hChrFilter; void *mmxextFilterCode = c->chrMmxextFilterCode; int i; +#if ARCH_X86_64 + DECLARE_ALIGNED(8, uint64_t, retsave); +#else #if defined(PIC) DECLARE_ALIGNED(8, uint64_t, ebxsave); #endif -#if ARCH_X86_64 - DECLARE_ALIGNED(8, uint64_t, retsave); #endif - __asm__ volatile( -#if defined(PIC) - "mov %%"REG_b", %7 \n\t" #if ARCH_X86_64 "mov -8(%%rsp), %%"REG_a" \n\t" - "mov %%"REG_a", %8 \n\t" -#endif + "mov %%"REG_a", %7 \n\t" // retsave #else -#if ARCH_X86_64 - "mov -8(%%rsp), %%"REG_a" \n\t" - "mov %%"REG_a", %7 \n\t" +#if defined(PIC) + "mov %%"REG_b", %7 \n\t" // ebxsave #endif #endif "pxor %%mm7, %%mm7 \n\t" @@ -338,25 +328,22 @@ void ff_hcscale_fast_mmxext(SwsContext *c, int16_t *dst1, int16_t *dst2, CALL_MMXEXT_FILTER_CODE CALL_MMXEXT_FILTER_CODE -#if defined(PIC) - "mov %7, %%"REG_b" \n\t" -#if ARCH_X86_64 - "mov %8, %%"REG_a" \n\t" - "mov %%"REG_a", -8(%%rsp) \n\t" -#endif -#else #if ARCH_X86_64 "mov %7, %%"REG_a" \n\t" "mov %%"REG_a", -8(%%rsp) \n\t" +#else +#if defined(PIC) + "mov %7, %%"REG_b" \n\t" #endif #endif :: "m" (src1), "m" (dst1), "m" (filter), "m" (filterPos), "m" (mmxextFilterCode), "m" (src2), "m"(dst2) +#if ARCH_X86_64 + ,"m"(retsave) +#else #if defined(PIC) ,"m" (ebxsave) #endif -#if ARCH_X86_64 - ,"m"(retsave) #endif : "%"REG_a, "%"REG_c, "%"REG_d, "%"REG_S, "%"REG_D #if ARCH_X86_64 || !defined(PIC) |