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android_full_debug x86 fix - use +rm for width count

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Work around for android full debug build runnign out of registers.
5 functions were running out of registers causing the compiler error
error: 'asm' operand has impossible constraints
These functions mostly have 4 pointers, a counter (width) and a tempory
eax register.  With fpic and debug using stackframes, 2 registers are
unavailable.  So a total of 8 registers are used.
Although fpic and stack frame dont apply to assembly, the compiler
reserves 2 registers.  The optimized version builds, so its likely
freeing up the registers once it knows they are not used.
These functions used to build, so compile options and/or compiler may
have updated.. likely fpic was turned on.
An attribute can be done to disable each, and will avoid using the
2 GPR registers, but they are still reserved and unavailable in debug
builds on current compilers (gcc 4.9 and clang 3.8).

R=dhrosa@google.com
BUG=libyuv:602

Review URL: https://codereview.chromium.org/2066933002 .
This commit is contained in:
Frank Barchard 2016-06-14 15:25:28 -07:00
parent e2611a7349
commit fd3e676e91
3 changed files with 8 additions and 8 deletions
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2
README.chromium
View File

@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1596
Version: 1597
License: BSD
License File: LICENSE

2
include/libyuv/version.h
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@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 1596
#define LIBYUV_VERSION 1597
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

12
source/row_gcc.cc
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@ -3596,7 +3596,7 @@ void BlendPlaneRow_SSSE3(const uint8* src0, const uint8* src1,
"+r"(src1), // %1
"+r"(alpha), // %2
"+r"(dst), // %3
"+r"(width) // %4
"+rm"(width) // %4
:: "memory", "cc", "eax", "xmm0", "xmm1", "xmm2", "xmm5", "xmm6", "xmm7"
);
}
@ -3653,7 +3653,7 @@ void BlendPlaneRow_AVX2(const uint8* src0, const uint8* src1,
"+r"(src1), // %1
"+r"(alpha), // %2
"+r"(dst), // %3
"+r"(width) // %4
"+rm"(width) // %4
:: "memory", "cc", "eax",
"xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
);
@ -4936,9 +4936,9 @@ void InterpolateRow_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
"jg 100b \n"
"99: \n"
: "+r"(dst_ptr), // %0
"+r"(src_ptr), // %1
"+r"(dst_width), // %2
: "+r"(dst_ptr), // %0
"+r"(src_ptr), // %1
"+rm"(dst_width), // %2
"+r"(source_y_fraction) // %3
: "r"((intptr_t)(src_stride)) // %4
: "memory", "cc", "eax", NACL_R14
@ -5014,7 +5014,7 @@ void InterpolateRow_AVX2(uint8* dst_ptr, const uint8* src_ptr,
"999: \n"
: "+D"(dst_ptr), // %0
"+S"(src_ptr), // %1
"+c"(dst_width), // %2
"+cm"(dst_width), // %2
"+r"(source_y_fraction) // %3
: "r"((intptr_t)(src_stride)) // %4
: "memory", "cc", "eax", NACL_R14