diff options
| -rw-r--r-- | llvm/lib/Target/R600/AMDGPUISelLowering.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/R600/fp16_to_fp.ll (renamed from llvm/test/CodeGen/R600/fp32_to_fp16.ll) | 14 |
2 files changed, 16 insertions, 0 deletions
diff --git a/llvm/lib/Target/R600/AMDGPUISelLowering.cpp b/llvm/lib/Target/R600/AMDGPUISelLowering.cpp index 89d5b08af41..42d2a13a398 100644 --- a/llvm/lib/Target/R600/AMDGPUISelLowering.cpp +++ b/llvm/lib/Target/R600/AMDGPUISelLowering.cpp @@ -242,6 +242,8 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) : setOperationAction(ISD::FCOPYSIGN, MVT::f64, Expand); } + setOperationAction(ISD::FP16_TO_FP, MVT::f64, Expand); + const MVT ScalarIntVTs[] = { MVT::i32, MVT::i64 }; for (MVT VT : ScalarIntVTs) { setOperationAction(ISD::SREM, VT, Expand); diff --git a/llvm/test/CodeGen/R600/fp32_to_fp16.ll b/llvm/test/CodeGen/R600/fp16_to_fp.ll index 3a051f8f677..777eadc34ea 100644 --- a/llvm/test/CodeGen/R600/fp32_to_fp16.ll +++ b/llvm/test/CodeGen/R600/fp16_to_fp.ll @@ -1,6 +1,7 @@ ; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s declare float @llvm.convert.from.fp16.f32(i16) nounwind readnone +declare double @llvm.convert.from.fp16.f64(i16) nounwind readnone ; SI-LABEL: @test_convert_fp16_to_fp32: ; SI: BUFFER_LOAD_USHORT [[VAL:v[0-9]+]] @@ -12,3 +13,16 @@ define void @test_convert_fp16_to_fp32(float addrspace(1)* noalias %out, i16 add store float %cvt, float addrspace(1)* %out, align 4 ret void } + + +; SI-LABEL: @test_convert_fp16_to_fp64: +; SI: BUFFER_LOAD_USHORT [[VAL:v[0-9]+]] +; SI: V_CVT_F32_F16_e32 [[RESULT32:v[0-9]+]], [[VAL]] +; SI: V_CVT_F64_F32_e32 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[RESULT32]] +; SI: BUFFER_STORE_DWORDX2 [[RESULT]] +define void @test_convert_fp16_to_fp64(double addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in) nounwind { + %val = load i16 addrspace(1)* %in, align 2 + %cvt = call double @llvm.convert.from.fp16.f64(i16 %val) nounwind readnone + store double %cvt, double addrspace(1)* %out, align 4 + ret void +} |
