[LLVMbugs] [Bug 19898] New: Support #pragma intrinsic

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Fri May 30 05:27:57 PDT 2014


            Bug ID: 19898
           Summary: Support #pragma intrinsic
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: timurrrr at google.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Repro (extracted from compiler-rt):

$ cat test.cpp
extern "C" void _ReadWriteBarrier();
#pragma intrinsic(_ReadWriteBarrier)

$ clang-cl -Wall -c test.cpp
test.cpp(2,9) :  warning: unknown pragma ignored [-Wunknown-pragmas]
#pragma intrinsic(_ReadWriteBarrier)
1 warning generated.

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