[X86] Add kshift intrinsics to match gcc and icc.
This adds the following intrinsics:
_kshiftli_mask8
_kshiftli_mask16
_kshiftli_mask32
_kshiftli_mask64
_kshiftri_mask8
_kshiftri_mask16
_kshiftri_mask32
_kshiftri_mask64
llvm-svn: 341234
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 7bb1a65..50e9b5e 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -9929,6 +9929,50 @@
"psrldq");
return Builder.CreateBitCast(SV, ResultType, "cast");
}
+ case X86::BI__builtin_ia32_kshiftliqi:
+ case X86::BI__builtin_ia32_kshiftlihi:
+ case X86::BI__builtin_ia32_kshiftlisi:
+ case X86::BI__builtin_ia32_kshiftlidi: {
+ unsigned ShiftVal = cast<llvm::ConstantInt>(Ops[1])->getZExtValue() & 0xff;
+ unsigned NumElts = Ops[0]->getType()->getIntegerBitWidth();
+
+ if (ShiftVal >= NumElts)
+ return llvm::Constant::getNullValue(Ops[0]->getType());
+
+ Value *In = getMaskVecValue(*this, Ops[0], NumElts);
+
+ uint32_t Indices[64];
+ for (unsigned i = 0; i != NumElts; ++i)
+ Indices[i] = NumElts + i - ShiftVal;
+
+ Value *Zero = llvm::Constant::getNullValue(In->getType());
+ Value *SV = Builder.CreateShuffleVector(Zero, In,
+ makeArrayRef(Indices, NumElts),
+ "kshiftl");
+ return Builder.CreateBitCast(SV, Ops[0]->getType());
+ }
+ case X86::BI__builtin_ia32_kshiftriqi:
+ case X86::BI__builtin_ia32_kshiftrihi:
+ case X86::BI__builtin_ia32_kshiftrisi:
+ case X86::BI__builtin_ia32_kshiftridi: {
+ unsigned ShiftVal = cast<llvm::ConstantInt>(Ops[1])->getZExtValue() & 0xff;
+ unsigned NumElts = Ops[0]->getType()->getIntegerBitWidth();
+
+ if (ShiftVal >= NumElts)
+ return llvm::Constant::getNullValue(Ops[0]->getType());
+
+ Value *In = getMaskVecValue(*this, Ops[0], NumElts);
+
+ uint32_t Indices[64];
+ for (unsigned i = 0; i != NumElts; ++i)
+ Indices[i] = i + ShiftVal;
+
+ Value *Zero = llvm::Constant::getNullValue(In->getType());
+ Value *SV = Builder.CreateShuffleVector(In, Zero,
+ makeArrayRef(Indices, NumElts),
+ "kshiftr");
+ return Builder.CreateBitCast(SV, Ops[0]->getType());
+ }
case X86::BI__builtin_ia32_movnti:
case X86::BI__builtin_ia32_movnti64:
case X86::BI__builtin_ia32_movntsd: