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util: (trivial) add has_popcnt field 

Not used yet but there's a couple of places in llvmpipe which should use this
(occlusion count is currently very inefficent if there's no cpu popcnt
instruction).
This commit is contained in:
Roland Scheidegger 2013-06-19 23:46:15 +02:00
parent 5c9aee111e
commit ffebefa114
2 changed files with 2 additions and 0 deletions
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1
src/gallium/auxiliary/util/u_cpu_detect.c
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@ -283,6 +283,7 @@ util_cpu_detect(void)
util_cpu_caps.has_ssse3 = (regs2[2] >> 9) & 1; /* 0x0000020 */
util_cpu_caps.has_sse4_1 = (regs2[2] >> 19) & 1;
util_cpu_caps.has_sse4_2 = (regs2[2] >> 20) & 1;
util_cpu_caps.has_popcnt = (regs2[2] >> 23) & 1;
util_cpu_caps.has_avx = (regs2[2] >> 28) & 1;
util_cpu_caps.has_f16c = (regs2[2] >> 29) & 1;
util_cpu_caps.has_mmx2 = util_cpu_caps.has_sse; /* SSE cpus supports mmxext too */

1
src/gallium/auxiliary/util/u_cpu_detect.h
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@ -62,6 +62,7 @@ struct util_cpu_caps {
unsigned has_ssse3:1;
unsigned has_sse4_1:1;
unsigned has_sse4_2:1;
unsigned has_popcnt:1;
unsigned has_avx:1;
unsigned has_f16c:1;
unsigned has_3dnow:1;