================
@@ -0,0 +1,69 @@
+; RUN: opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s |
FileCheck %s
+; Make sure the intrinsic dx.saturate is to appropriate DXIL op for
half/float/double data types.
+
+target datalayout =
"e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64"
+target triple = "dxilv1.6-unknown-shadermodel6.6-library"
+
+; CHECK-LABEL: test_saturate_half
+define noundef half @test_saturate_half(half noundef %p0) #0 {
+entry:
+ %p0.addr = alloca half, align 2
+ store half %p0, ptr %p0.addr, align 2, !tbaa !4
+ %0 = load half, ptr %p0.addr, align 2, !tbaa !4
+ ; CHECK: %1 = call half @dx.op.unary.f16(i32 7, half %0)
+ %hlsl.saturate = call half @llvm.dx.saturate.f16(half %0)
+ ; CHECK: ret half %1
+ ret half %hlsl.saturate
+}
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn
+declare half @llvm.dx.saturate.f16(half) #1
+
+; CHECK-LABEL: test_saturate_float
+define noundef float @test_saturate_float(float noundef %p0) #0 {
+entry:
+ %p0.addr = alloca float, align 4
+ store float %p0, ptr %p0.addr, align 4, !tbaa !9
+ %0 = load float, ptr %p0.addr, align 4, !tbaa !9
+ ; CHECK: %1 = call float @dx.op.unary.f32(i32 7, float %0)
+ %hlsl.saturate = call float @llvm.dx.saturate.f32(float %0)
+ ; CHECK: ret float %1
+ ret float %hlsl.saturate
+}
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn
+declare float @llvm.dx.saturate.f32(float) #1
+
+; CHECK-LABEL: test_saturate_double
+define noundef double @test_saturate_double(double noundef %p0) #0 {
+entry:
+ %p0.addr = alloca double, align 8
----------------
farzonl wrote:
delete lines 40-42? pass `%p0` to `@llvm.dx.saturate.f64` instead of %0. repeat
for the float and half case.
https://github.com/llvm/llvm-project/pull/104619
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