RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

x86: fix build with gcc 4.7 

The upcoming gcc 4.7 has more advanced constant propagation
resulting some inline asm operands becoming constants and thus
emitted as literals, sometimes in contexts where this results
in invalid instructions.

This patch changes the constraints of the relevant operands
to "rm" thus forcing a valid type.  While obviously suboptimal,
this is what older gcc versions already did, and there is no
change to the code generated with these.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-07-26 12:23:43 +01:00
parent ab3d241be1
commit da4c7cce21
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
libavcodec/x86/h264_qpel_mmx.c
View File

@ -399,7 +399,7 @@ static av_noinline void OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(uint8_t *dst,
"2: \n\t"\
\
: "+a"(src), "+c"(dst)\
: "S"((x86_reg)srcStride), "D"((x86_reg)dstStride), "g"(h)\
: "S"((x86_reg)srcStride), "D"((x86_reg)dstStride), "rm"(h)\
: "memory"\
);\
src += 4-(h+5)*srcStride;\
@ -447,7 +447,7 @@ static av_always_inline void OPNAME ## h264_qpel8or16_hv1_lowpass_ ## MMX(int16_
QPEL_H264HV(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, 15*48)\
"2: \n\t"\
: "+a"(src)\
: "c"(tmp), "S"((x86_reg)srcStride), "g"(size)\
: "c"(tmp), "S"((x86_reg)srcStride), "rm"(size)\
: "memory"\
);\
tmp += 4;\
@ -824,7 +824,7 @@ static av_noinline void OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(uint8_t *dst,
"2: \n\t"\
\
: "+a"(src), "+c"(dst)\
: "S"((x86_reg)srcStride), "D"((x86_reg)dstStride), "g"(h)\
: "S"((x86_reg)srcStride), "D"((x86_reg)dstStride), "rm"(h)\
: XMM_CLOBBERS("%xmm0", "%xmm1", "%xmm2", "%xmm3", \
"%xmm4", "%xmm5", "%xmm6", "%xmm7",)\
"memory"\
@ -879,7 +879,7 @@ static av_always_inline void put_h264_qpel8or16_hv1_lowpass_sse2(int16_t *tmp, u
QPEL_H264HV_XMM(%%xmm3, %%xmm4, %%xmm5, %%xmm0, %%xmm1, %%xmm2, 15*48)
"2: \n\t"
: "+a"(src)
: "c"(tmp), "S"((x86_reg)srcStride), "g"(size)
: "c"(tmp), "S"((x86_reg)srcStride), "rm"(size)
: XMM_CLOBBERS("%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7",)
"memory"