Clang equivalent of GCC's __builtin_darn()












1















I'm trying to discover Clang's equivalent to GCC's __builtin_darn() on Power9. Grepping Clang 7.0 sources it looks like LLVM supports it:



llvm_source$ cat llvm/test/MC/PowerPC/ppc64-encoding.s | grep darn -B 1 -A 1

# CHECK-BE: darn 2, 3 # encoding: [0x7c,0x43,0x05,0xe6]
# CHECK-LE: darn 2, 3 # encoding: [0xe6,0x05,0x43,0x7c]
darn 2, 3


However, I can't seen to find the builtin:



llvm_source$ grep -IR darn | grep builtin
llvm_source$


What is Clang equivalent of GCC's __builtin_darn()?










share|improve this question



























    1















    I'm trying to discover Clang's equivalent to GCC's __builtin_darn() on Power9. Grepping Clang 7.0 sources it looks like LLVM supports it:



    llvm_source$ cat llvm/test/MC/PowerPC/ppc64-encoding.s | grep darn -B 1 -A 1

    # CHECK-BE: darn 2, 3 # encoding: [0x7c,0x43,0x05,0xe6]
    # CHECK-LE: darn 2, 3 # encoding: [0xe6,0x05,0x43,0x7c]
    darn 2, 3


    However, I can't seen to find the builtin:



    llvm_source$ grep -IR darn | grep builtin
    llvm_source$


    What is Clang equivalent of GCC's __builtin_darn()?










    share|improve this question

























      1












      1








      1








      I'm trying to discover Clang's equivalent to GCC's __builtin_darn() on Power9. Grepping Clang 7.0 sources it looks like LLVM supports it:



      llvm_source$ cat llvm/test/MC/PowerPC/ppc64-encoding.s | grep darn -B 1 -A 1

      # CHECK-BE: darn 2, 3 # encoding: [0x7c,0x43,0x05,0xe6]
      # CHECK-LE: darn 2, 3 # encoding: [0xe6,0x05,0x43,0x7c]
      darn 2, 3


      However, I can't seen to find the builtin:



      llvm_source$ grep -IR darn | grep builtin
      llvm_source$


      What is Clang equivalent of GCC's __builtin_darn()?










      share|improve this question














      I'm trying to discover Clang's equivalent to GCC's __builtin_darn() on Power9. Grepping Clang 7.0 sources it looks like LLVM supports it:



      llvm_source$ cat llvm/test/MC/PowerPC/ppc64-encoding.s | grep darn -B 1 -A 1

      # CHECK-BE: darn 2, 3 # encoding: [0x7c,0x43,0x05,0xe6]
      # CHECK-LE: darn 2, 3 # encoding: [0xe6,0x05,0x43,0x7c]
      darn 2, 3


      However, I can't seen to find the builtin:



      llvm_source$ grep -IR darn | grep builtin
      llvm_source$


      What is Clang equivalent of GCC's __builtin_darn()?







      clang llvm powerpc altivec






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 26 '18 at 7:12









      jwwjww

      54.1k41233513




      54.1k41233513
























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