[Bug c/87171] -march=native doesn't detect flags correctly on G4560

[luz at mujerlibre dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87171

--- Comment #2 from Angelica <luz at mujerlibre dot net> ---
x86info v1.30.  Dave Jones 2001-2011
Feedback to <davej@redhat.com>.

MP Table:
#       APIC ID Version State           Family  Model   Step    Flags
#        0       0x15    BSP, usable     6       14      9       0x0381
#        2       0x15    AP, usable      6       14      9       0x0381

Found 4 identical CPUs
Extended Family: 0 Extended Model: 9 Family: 6 Model: 158 Stepping: 9
Type: 0 (Original OEM)
CPU Model (x86info's best guess): Unknown model. 
Processor name string (BIOS programmed): Intel(R) Pentium(R) CPU G4560 @
3.50GHz

Performance MSRs:
/dev/cpu/0/msr: No such file or directory

eax in: 0x00000000, eax = 00000016 ebx = 756e6547 ecx = 6c65746e edx = 49656e69
eax in: 0x00000001, eax = 000906e9 ebx = 00100800 ecx = 4ffaebbf edx = bfebfbff
eax in: 0x00000002, eax = 76036301 ebx = 00f0b5ff ecx = 00000000 edx = 00c30000
eax in: 0x00000003, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x00000004, eax = 1c004121 ebx = 01c0003f ecx = 0000003f edx = 00000000
eax in: 0x00000005, eax = 00000040 ebx = 00000040 ecx = 00000003 edx = 00142120
eax in: 0x00000006, eax = 000027f5 ebx = 00000002 ecx = 00000001 edx = 00000000
eax in: 0x00000007, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x00000008, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x00000009, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x0000000a, eax = 07300404 ebx = 00000000 ecx = 00000000 edx = 00000603
eax in: 0x0000000b, eax = 00000001 ebx = 00000002 ecx = 00000100 edx = 00000000
eax in: 0x0000000c, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x0000000d, eax = 0000001b ebx = 00000440 ecx = 00000440 edx = 00000000
eax in: 0x0000000e, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x0000000f, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x00000010, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x00000011, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x00000012, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x00000013, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x00000014, eax = 00000001 ebx = 0000000f ecx = 00000007 edx = 00000000
eax in: 0x00000015, eax = 00000002 ebx = 00000124 ecx = 00000000 edx = 00000000
eax in: 0x00000016, eax = 00000dac ebx = 00000dac ecx = 00000064 edx = 00000000

eax in: 0x80000000, eax = 80000008 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x80000001, eax = 00000000 ebx = 00000000 ecx = 00000121 edx = 2c100800
eax in: 0x80000002, eax = 65746e49 ebx = 2952286c ecx = 6e655020 edx = 6d756974
eax in: 0x80000003, eax = 20295228 ebx = 20555043 ecx = 36353447 edx = 20402030
eax in: 0x80000004, eax = 30352e33 ebx = 007a4847 ecx = 00000000 edx = 00000000
eax in: 0x80000005, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x80000006, eax = 00000000 ebx = 00000000 ecx = 01006040 edx = 00000000
eax in: 0x80000007, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000100
eax in: 0x80000008, eax = 00003027 ebx = 00000000 ecx = 00000000 edx = 00000000

Cache info
TLB info
 Data TLB: 4KB pages, 4-way associative, 64 entries
 Data TLB: 4KB pages, 4-way associative, 64 entries
 64 byte prefetching.
Found unknown cache descriptors: 63 76 b5 c3 ff 
Feature flags:
 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflsh
ds acpi mmx fxsr sse sse2 ss ht tm pbe sse3 pclmuldq dtes64 monitor ds-cpl vmx
est tm2 ssse3 [1:ecx:11] cx16 xTPR pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt
tsc-deadline aes xsave osxsave [1:ecx:30]
Extended feature flags:
 SYSCALL xd pdpe1gb rdtscp em64t lahf_lm [80000001:ecx:5] [80000001:ecx:8] dts
arat pln ecmd ptm [6:eax:7] [6:eax:8] [6:eax:9] [6:eax:10] [6:eax:13]
nonstop_tsc
Long NOPs supported: yes

Address sizes : 39 bits physical, 48 bits virtual
3.50GHz processor (estimate).

Total processor threads: 4
This system has 1 dual-core processor with hyper-threading (2 threads per core)
running at an estimated 3.50GHz