[LLVMbugs] [Bug 17087] New: x86 bit manipulation bugs umbrella

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Sep 3 11:19:47 PDT 2013


            Bug ID: 17087
           Summary: x86 bit manipulation bugs umbrella
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: kkhoo at perfwizard.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

This is an umbrella bug to relate x86 codegen problems for bit manipulation

These instructions have been introduced piecemeal by Intel and AMD in recent
CPUs with CPUID feature bits such as BMI, BMI2, TBM, ABM, POPCOUNT.

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