[LLVMbugs] [Bug 11565] New: _mm_test_all_zeros macro is incorrect

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Dec 14 03:51:15 PST 2011


             Bug #: 11565
           Summary: _mm_test_all_zeros macro is incorrect
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: loufoque at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

smmintrin.h defines _mm_test_all_zeros as
#define _mm_test_all_zeros(M, V) _mm_testz_si128 ((V), (V))

this is clearly incorrect, it should be
#define _mm_test_all_zeros(M, V) _mm_testz_si128 ((M), (V))

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