[Mesa-dev] [PATCH] gallivm: use getHostCPUFeatures on x86/llvm-4.0+.

[Michel Dänzer]

On 06/12/16 02:39 AM, Tim Rowley wrote:
> Use llvm provided API based on cpuid rather than our own
> manually mantained list of mattr enabling/disabling.

This change broke the llvmpipe unit test lp_test_format for me:

Testing PIPE_FORMAT_R32_FLOAT (float) ...
FAILED
  Packed: 00 00 00 00
  Unpacked (0,0): 1 0 0 1 obtained
                  0 0 0 1 expected
FAILED
  Packed: 00 00 80 bf
  Unpacked (0,0): 1 0 0 1 obtained
                  -1 0 0 1 expected


This is on:

processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 48
model name	: AMD A10-7850K Radeon R7, 12 Compute Cores 4C+8G
stepping	: 1
microcode	: 0x6003106
cpu MHz		: 4100.000
cache size	: 2048 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 2
apicid		: 16
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf eagerfpu pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb bpext ptsc cpb hw_pstate vmmcall fsgsbase bmi1 xsaveopt arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold overflow_recov
bugs		: fxsave_leak sysret_ss_attrs null_seg
bogomips	: 8200.42
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro [13]



-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer