| ; RUN: opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s | |
| ; Make sure dxil operation function calls for log2 are generated for float and half. | |
| define noundef float @log2_float(float noundef %a) #0 { | |
| entry: | |
| ; CHECK:call float @dx.op.unary.f32(i32 23, float %{{.*}}) | |
| %elt.log2 = call float @llvm.log2.f32(float %a) | |
| ret float %elt.log2 | |
| } | |
| define noundef half @log2_half(half noundef %a) #0 { | |
| entry: | |
| ; CHECK:call half @dx.op.unary.f16(i32 23, half %{{.*}}) | |
| %elt.log2 = call half @llvm.log2.f16(half %a) | |
| ret half %elt.log2 | |
| } | |
| ; CHECK-DAG: declare half @dx.op.unary.f16(i32, half) #[[#ATTR0:]] | |
| ; CHECK-DAG: declare float @dx.op.unary.f32(i32, float) #[[#ATTR0]] | |
| ; CHECK: attributes #[[#ATTR0]] = { nounwind memory(none) } | |
| declare half @llvm.log2.f16(half) | |
| declare float @llvm.log2.f32(float) |