[LLVMbugs] [Bug 19416] Clang cannot do LTO with BMI2 instructions

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Mar 30 13:21:09 PDT 2015


https://llvm.org/bugs/show_bug.cgi?id=19416

Eric Christopher <echristo at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |echristo at gmail.com
         Resolution|---                         |FIXED

--- Comment #1 from Eric Christopher <echristo at gmail.com> ---
Fixed in ToT: 

dzur:~/tmp>~/builds/build-llvm/Debug+Asserts/bin/clang -mbmi2 -flto
bmi2_lto_bug.c
dzur:~/tmp> ~/builds/build-llvm/Debug+Asserts/bin/llvm-objdump -disassemble
a.out | grep pextl
  400529:    c4 e2 7a f5 f0     pextl    %eax, %eax, %esi

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