diff options
Diffstat (limited to 'clang/lib/CodeGen/CGBuiltin.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index d38e6b02621..8f53a83abe7 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -9168,6 +9168,24 @@ static Value *EmitX86MaskLogic(CodeGenFunction &CGF, Instruction::BinaryOps Opc, Ops[0]->getType()); } +static Value *EmitX86FunnelShift(CodeGenFunction &CGF, Value *Op0, Value *Op1, + Value *Amt, bool IsRight) { + llvm::Type *Ty = Op0->getType(); + + // Amount may be scalar immediate, in which case create a splat vector. + // Funnel shifts amounts are treated as modulo and types are all power-of-2 so + // we only care about the lowest log2 bits anyway. + if (Amt->getType() != Ty) { + unsigned NumElts = Ty->getVectorNumElements(); + Amt = CGF.Builder.CreateIntCast(Amt, Ty->getScalarType(), false); + Amt = CGF.Builder.CreateVectorSplat(NumElts, Amt); + } + + unsigned IID = IsRight ? Intrinsic::fshr : Intrinsic::fshl; + Value *F = CGF.CGM.getIntrinsic(IID, Ty); + return CGF.Builder.CreateCall(F, {Op0, Op1, Amt}); +} + static Value *EmitX86Select(CodeGenFunction &CGF, Value *Mask, Value *Op0, Value *Op1) { @@ -10575,7 +10593,41 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID, SI->setAlignment(1); return SI; } - + // Rotate is a special case of funnel shift - 1st 2 args are the same. + case X86::BI__builtin_ia32_vprotb: + case X86::BI__builtin_ia32_vprotw: + case X86::BI__builtin_ia32_vprotd: + case X86::BI__builtin_ia32_vprotq: + case X86::BI__builtin_ia32_vprotbi: + case X86::BI__builtin_ia32_vprotwi: + case X86::BI__builtin_ia32_vprotdi: + case X86::BI__builtin_ia32_vprotqi: + case X86::BI__builtin_ia32_prold128: + case X86::BI__builtin_ia32_prold256: + case X86::BI__builtin_ia32_prold512: + case X86::BI__builtin_ia32_prolq128: + case X86::BI__builtin_ia32_prolq256: + case X86::BI__builtin_ia32_prolq512: + case X86::BI__builtin_ia32_prolvd128: + case X86::BI__builtin_ia32_prolvd256: + case X86::BI__builtin_ia32_prolvd512: + case X86::BI__builtin_ia32_prolvq128: + case X86::BI__builtin_ia32_prolvq256: + case X86::BI__builtin_ia32_prolvq512: + return EmitX86FunnelShift(*this, Ops[0], Ops[0], Ops[1], false); + case X86::BI__builtin_ia32_prord128: + case X86::BI__builtin_ia32_prord256: + case X86::BI__builtin_ia32_prord512: + case X86::BI__builtin_ia32_prorq128: + case X86::BI__builtin_ia32_prorq256: + case X86::BI__builtin_ia32_prorq512: + case X86::BI__builtin_ia32_prorvd128: + case X86::BI__builtin_ia32_prorvd256: + case X86::BI__builtin_ia32_prorvd512: + case X86::BI__builtin_ia32_prorvq128: + case X86::BI__builtin_ia32_prorvq256: + case X86::BI__builtin_ia32_prorvq512: + return EmitX86FunnelShift(*this, Ops[0], Ops[0], Ops[1], true); case X86::BI__builtin_ia32_selectb_128: case X86::BI__builtin_ia32_selectb_256: case X86::BI__builtin_ia32_selectb_512: |
