================
@@ -0,0 +1,56 @@
+; RUN: opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-compute %s |
FileCheck %s
+
+; Test that for scalar values, WaveReadLaneAt maps down to the DirectX op
+
+define noundef half @wave_rla_half(half noundef %expr, i32 noundef %idx) #0 {
+entry:
+; CHECK: call half @dx.op.waveReadLaneAt.f16(i32 117, half %expr, i32 %idx)
+ %ret = call half @llvm.dx.wave.read.lane.at.f16(half %expr, i32 %idx)
+ ret half %ret
+}
+
+define noundef float @wave_rla_float(float noundef %expr, i32 noundef %idx) #0
{
+entry:
+; CHECK: call float @dx.op.waveReadLaneAt.f32(i32 117, float %expr, i32 %idx)
+ %ret = call float @llvm.dx.wave.read.lane.at(float %expr, i32 %idx)
+ ret float %ret
+}
+
+define noundef double @wave_rla_double(double noundef %expr, i32 noundef %idx)
#0 {
+entry:
+; CHECK: call double @dx.op.waveReadLaneAt.f64(i32 117, double %expr, i32 %idx)
+ %ret = call double @llvm.dx.wave.read.lane.at(double %expr, i32 %idx)
+ ret double %ret
+}
+
+define noundef i1 @wave_rla_i1(i1 noundef %expr, i32 noundef %idx) #0 {
+entry:
+; CHECK: call i1 @dx.op.waveReadLaneAt.i1(i32 117, i1 %expr, i32 %idx)
+ %ret = call i1 @llvm.dx.wave.read.lane.at.i1(i1 %expr, i32 %idx)
+ ret i1 %ret
+}
+
+define noundef i16 @wave_rla_i16(i16 noundef %expr, i32 noundef %idx) #0 {
+entry:
+; CHECK: call i16 @dx.op.waveReadLaneAt.i16(i32 117, i16 %expr, i32 %idx)
+ %ret = call i16 @llvm.dx.wave.read.lane.at.i16(i16 %expr, i32 %idx)
+ ret i16 %ret
+}
+
+define noundef i32 @wave_rla_i32(i32 noundef %expr, i32 noundef %idx) #0 {
+entry:
+; CHECK: call i32 @dx.op.waveReadLaneAt.i32(i32 117, i32 %expr, i32 %idx)
+ %ret = call i32 @llvm.dx.wave.read.lane.at.i32(i32 %expr, i32 %idx)
+ ret i32 %ret
+}
+
+declare half @llvm.dx.wave.read.lane.at.f16(half, i32) #1
----------------
farzonl wrote:
remove all the `#1`
https://github.com/llvm/llvm-project/pull/111010
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