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libFLAC/cpu.c: Use a dummy function for debugging 

This saves 5 if statements that would have had to have been
optimised away.
This commit is contained in:
Julian Calaby 2016-06-27 22:08:51 +10:00 committed by Erik de Castro Lopo
parent 85c902fbbc
commit 601c051df4
1 changed files with 30 additions and 34 deletions
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64
src/libFLAC/cpu.c
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@ -72,9 +72,10 @@
#endif
#ifdef DEBUG
#define DEBUG_ON 1
#define dfprintf fprintf
#else
#define DEBUG_ON 0
/* This is bad practice, it should be a static void empty function */
#define dfprintf(file, format, args...)
#endif
@ -221,22 +222,20 @@ ia32_cpu_info (FLAC__CPUInfo *info)
info->ia32.avx2 = (flags_ebx & FLAC__CPUINFO_IA32_CPUID_AVX2 ) ? true : false;
}
if (DEBUG_ON) {
fprintf(stderr, "CPU info (IA-32):\n");
fprintf(stderr, " CMOV ....... %c\n", info->ia32.cmov ? 'Y' : 'n');
fprintf(stderr, " MMX ........ %c\n", info->ia32.mmx ? 'Y' : 'n');
fprintf(stderr, " SSE ........ %c\n", info->ia32.sse ? 'Y' : 'n');
fprintf(stderr, " SSE2 ....... %c\n", info->ia32.sse2 ? 'Y' : 'n');
fprintf(stderr, " SSE3 ....... %c\n", info->ia32.sse3 ? 'Y' : 'n');
fprintf(stderr, " SSSE3 ...... %c\n", info->ia32.ssse3 ? 'Y' : 'n');
fprintf(stderr, " SSE41 ...... %c\n", info->ia32.sse41 ? 'Y' : 'n');
fprintf(stderr, " SSE42 ...... %c\n", info->ia32.sse42 ? 'Y' : 'n');
dfprintf(stderr, "CPU info (IA-32):\n");
dfprintf(stderr, " CMOV ....... %c\n", info->ia32.cmov ? 'Y' : 'n');
dfprintf(stderr, " MMX ........ %c\n", info->ia32.mmx ? 'Y' : 'n');
dfprintf(stderr, " SSE ........ %c\n", info->ia32.sse ? 'Y' : 'n');
dfprintf(stderr, " SSE2 ....... %c\n", info->ia32.sse2 ? 'Y' : 'n');
dfprintf(stderr, " SSE3 ....... %c\n", info->ia32.sse3 ? 'Y' : 'n');
dfprintf(stderr, " SSSE3 ...... %c\n", info->ia32.ssse3 ? 'Y' : 'n');
dfprintf(stderr, " SSE41 ...... %c\n", info->ia32.sse41 ? 'Y' : 'n');
dfprintf(stderr, " SSE42 ...... %c\n", info->ia32.sse42 ? 'Y' : 'n');
if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
fprintf(stderr, " AVX ........ %c\n", info->ia32.avx ? 'Y' : 'n');
fprintf(stderr, " FMA ........ %c\n", info->ia32.fma ? 'Y' : 'n');
fprintf(stderr, " AVX2 ....... %c\n", info->ia32.avx2 ? 'Y' : 'n');
}
if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
dfprintf(stderr, " AVX ........ %c\n", info->ia32.avx ? 'Y' : 'n');
dfprintf(stderr, " FMA ........ %c\n", info->ia32.fma ? 'Y' : 'n');
dfprintf(stderr, " AVX2 ....... %c\n", info->ia32.avx2 ? 'Y' : 'n');
}
/*
@ -338,8 +337,7 @@ ia32_cpu_info (FLAC__CPUInfo *info)
/* no way to test, disable to be safe */
ia32_disable_sse(info);
#endif
if (DEBUG_ON)
fprintf(stderr, " SSE OS sup . %c\n", info->ia32.sse ? 'Y' : 'n');
dfprintf(stderr, " SSE OS sup . %c\n", info->ia32.sse ? 'Y' : 'n');
}
else /* info->ia32.sse == false */
ia32_disable_sse(info);
@ -351,8 +349,8 @@ ia32_cpu_info (FLAC__CPUInfo *info)
FLAC__uint32 ecr = cpu_xgetbv_x86();
if ((ecr & 0x6) != 0x6)
ia32_disable_avx(info);
if (DEBUG_ON)
fprintf(stderr, " AVX OS sup . %c\n", info->ia32.avx ? 'Y' : 'n');
dfprintf(stderr, " AVX OS sup . %c\n", info->ia32.avx ? 'Y' : 'n');
}
else /* no OS AVX support */
ia32_disable_avx(info);
@ -400,18 +398,16 @@ x86_64_cpu_info (FLAC__CPUInfo *info)
info->x86.avx2 = (flags_ebx & FLAC__CPUINFO_IA32_CPUID_AVX2 ) ? true : false;
}
if (DEBUG_ON) {
fprintf(stderr, "CPU info (x86-64):\n");
fprintf(stderr, " SSE3 ....... %c\n", info->x86.sse3 ? 'Y' : 'n');
fprintf(stderr, " SSSE3 ...... %c\n", info->x86.ssse3 ? 'Y' : 'n');
fprintf(stderr, " SSE41 ...... %c\n", info->x86.sse41 ? 'Y' : 'n');
fprintf(stderr, " SSE42 ...... %c\n", info->x86.sse42 ? 'Y' : 'n');
dfprintf(stderr, "CPU info (x86-64):\n");
dfprintf(stderr, " SSE3 ....... %c\n", info->x86.sse3 ? 'Y' : 'n');
dfprintf(stderr, " SSSE3 ...... %c\n", info->x86.ssse3 ? 'Y' : 'n');
dfprintf(stderr, " SSE41 ...... %c\n", info->x86.sse41 ? 'Y' : 'n');
dfprintf(stderr, " SSE42 ...... %c\n", info->x86.sse42 ? 'Y' : 'n');
if (FLAC__AVX_SUPPORTED) {
fprintf(stderr, " AVX ........ %c\n", info->x86.avx ? 'Y' : 'n');
fprintf(stderr, " FMA ........ %c\n", info->x86.fma ? 'Y' : 'n');
fprintf(stderr, " AVX2 ....... %c\n", info->x86.avx2 ? 'Y' : 'n');
}
if (FLAC__AVX_SUPPORTED) {
dfprintf(stderr, " AVX ........ %c\n", info->x86.avx ? 'Y' : 'n');
dfprintf(stderr, " FMA ........ %c\n", info->x86.fma ? 'Y' : 'n');
dfprintf(stderr, " AVX2 ....... %c\n", info->x86.avx2 ? 'Y' : 'n');
}
/*
@ -421,8 +417,8 @@ x86_64_cpu_info (FLAC__CPUInfo *info)
FLAC__uint32 ecr = cpu_xgetbv_x86();
if ((ecr & 0x6) != 0x6)
x86_64_disable_avx(info);
if (DEBUG_ON)
fprintf(stderr, " AVX OS sup . %c\n", info->x86.avx ? 'Y' : 'n');
dfprintf(stderr, " AVX OS sup . %c\n", info->x86.avx ? 'Y' : 'n');
}
else /* no OS AVX support */
x86_64_disable_avx(info);