diff options
| author | Joey Gouly <joey.gouly@arm.com> | 2013-01-23 11:56:20 +0000 |
|---|---|---|
| committer | Joey Gouly <joey.gouly@arm.com> | 2013-01-23 11:56:20 +0000 |
| commit | 19dbb20ac4371fae3190379a7e7bd467af3c00aa (patch) | |
| tree | 4ad0ff118896e57acd79d0f76e8a57311af4bd19 /lib/CodeGen/CGExprScalar.cpp | |
| parent | 218b6dfaee321cec558e15d47b68155dd9f35684 (diff) | |
Add a new LangOpt NativeHalfType. This option allows for native half/fp16
operations (as opposed to storage only half/fp16).
Also add some semantic checks for OpenCL half types.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173254 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGExprScalar.cpp')
| -rw-r--r-- | lib/CodeGen/CGExprScalar.cpp | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp index ed927e2fb4..7f0eda8993 100644 --- a/lib/CodeGen/CGExprScalar.cpp +++ b/lib/CodeGen/CGExprScalar.cpp @@ -664,9 +664,8 @@ Value *ScalarExprEmitter::EmitScalarConversion(Value *Src, QualType SrcType, QualType OrigSrcType = SrcType; llvm::Type *SrcTy = Src->getType(); - // Floating casts might be a bit special: if we're doing casts to / from half - // FP, we should go via special intrinsics. - if (SrcType->isHalfType()) { + // If casting to/from storage-only half FP, use special intrinsics. + if (SrcType->isHalfType() && !CGF.getContext().getLangOpts().NativeHalfType) { Src = Builder.CreateCall(CGF.CGM.getIntrinsic(llvm::Intrinsic::convert_from_fp16), Src); SrcType = CGF.getContext().FloatTy; SrcTy = CGF.FloatTy; @@ -735,7 +734,7 @@ Value *ScalarExprEmitter::EmitScalarConversion(Value *Src, QualType SrcType, DstTy); // Cast to half via float - if (DstType->isHalfType()) + if (DstType->isHalfType() && !CGF.getContext().getLangOpts().NativeHalfType) DstTy = CGF.FloatTy; if (isa<llvm::IntegerType>(SrcTy)) { @@ -1536,7 +1535,7 @@ ScalarExprEmitter::EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, // Add the inc/dec to the real part. llvm::Value *amt; - if (type->isHalfType()) { + if (type->isHalfType() && !CGF.getContext().getLangOpts().NativeHalfType) { // Another special case: half FP increment should be done via float value = Builder.CreateCall(CGF.CGM.getIntrinsic(llvm::Intrinsic::convert_from_fp16), @@ -1558,7 +1557,7 @@ ScalarExprEmitter::EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, } value = Builder.CreateFAdd(value, amt, isInc ? "inc" : "dec"); - if (type->isHalfType()) + if (type->isHalfType() && !CGF.getContext().getLangOpts().NativeHalfType) value = Builder.CreateCall(CGF.CGM.getIntrinsic(llvm::Intrinsic::convert_to_fp16), value); |