[LLVMbugs] [Bug 6584] New: -msse3 does not define __SSE3__

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Mar 11 16:44:30 PST 2010


           Summary: -msse3 does not define __SSE3__
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Driver
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: m at fritschy.de
                CC: llvmbugs at cs.uiuc.edu

When using -msse3 the macro __SSE3__ is not defined which triggers an error in

% cat > sse3.c
#include <pmmintrin.h>
int main(){}
% clang -msse3 sse3.c
In file included from sse3.c:1:
/home/m/software/llvm/lib/clang/1.1/include/pmmintrin.h:28:2: error: #error
"SSE3 instruction set not enabled"
#error "SSE3 instruction set not enabled"
1 diagnostic generated.

It does however work when using -msse4.


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