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dsp/cpu: correct wasmCPUInfo placement

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WASM needs to precede platform specific architecture checks as the
defines will still be present when building this target.

Change-Id: I823f4922829561ea298c6837068b79bf9f1aee1b
This commit is contained in:
James Zern 2017-06-26 15:46:28 -07:00
parent 586eda373d
commit b005d916f8
1 changed files with 20 additions and 10 deletions
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30
src/dsp/cpu.c
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@ -23,11 +23,13 @@
#endif
//------------------------------------------------------------------------------
// SSE2 detection.
// x86/x86-64 micro-arch detection.
//
// skip x86 specific code for WASM builds
#if defined(WEBP_USE_WASM)
// apple/darwin gcc-4.0.1 defines __PIC__, but not __pic__ with -fPIC.
#if (defined(__pic__) || defined(__PIC__)) && defined(__i386__)
#elif (defined(__pic__) || defined(__PIC__)) && defined(__i386__)
static WEBP_INLINE void GetCPUInfo(int cpu_info[4], int info_type) {
__asm__ volatile (
"mov %%ebx, %%edi\n"
@ -63,8 +65,10 @@ static WEBP_INLINE void GetCPUInfo(int cpu_info[4], int info_type) {
#define GetCPUInfo __cpuid
#endif
// skip xgetbv definition for WASM builds
#if defined(WEBP_USE_WASM)
// NaCl has no support for xgetbv or the raw opcode.
#if !defined(__native_client__) && (defined(__i386__) || defined(__x86_64__))
#elif !defined(__native_client__) && (defined(__i386__) || defined(__x86_64__))
static WEBP_INLINE uint64_t xgetbv(void) {
const uint32_t ecx = 0;
uint32_t eax, edx;
@ -94,7 +98,19 @@ static WEBP_INLINE uint64_t xgetbv(void) {
#define xgetbv() 0U // no AVX for older x64 or unrecognized toolchains.
#endif
#if defined(__i386__) || defined(__x86_64__) || defined(WEBP_MSC_SSE2)
//------------------------------------------------------------------------------
// Platform specific VP8CPUInfo functions.
//
// WASM needs to precede platform specific architecture checks as the defines
// will still be present when building this target.
#if defined(WEBP_USE_WASM)
static int wasmCPUInfo(CPUFeature feature) {
if (feature != kWASM) return 0;
return 1;
}
VP8CPUInfo VP8GetCPUInfo = wasmCPUInfo;
#elif defined(__i386__) || defined(__x86_64__) || defined(WEBP_MSC_SSE2)
// helper function for run-time detection of slow SSSE3 platforms
static int CheckSlowModel(int info) {
@ -217,12 +233,6 @@ static int mipsCPUInfo(CPUFeature feature) {
}
VP8CPUInfo VP8GetCPUInfo = mipsCPUInfo;
#elif defined(WEBP_USE_WASM)
static int wasmCPUInfo(CPUFeature feature) {
if (feature != kWASM) return 0;
return 1;
}
VP8CPUInfo VP8GetCPUInfo = wasmCPUInfo;
#else
VP8CPUInfo VP8GetCPUInfo = NULL;
#endif