[LLVMbugs] [Bug 2647] extractps selected too eagerly

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2647


Nick Lewycky <nicholas at mxc.ca> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nicholas at mxc.ca
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |




--- Comment #2 from Nick Lewycky <nicholas at mxc.ca>  2008-08-08 23:45:36 ---
This testcase is failing on my box: 

$ Debug/bin/llvm-as < test/CodeGen/X86/extractps.ll | Debug/bin/llc
-mcpu=penryn


        .text
        .align  16
        .type   __unnamed_1_0, at function
__unnamed_1_0:
        rsqrtss __unnamed_2_1, %xmm0
        extractps       $0, %xmm0, __unnamed_2_1
        ret
        .size   __unnamed_1_0, .-__unnamed_1_0

        .section        .note.GNU-stack,"", at progbits


If you're wondering what my CPU is, I've got an AMD. Here's the full specs:

$ cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 107
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 5000+
stepping        : 2
cpu MHz         : 2613.389
cache size      : 512 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
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 rdtscp lm
3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy
3dnowprefetch
bogomips        : 5228.84
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc 100mhzsteps


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