[clang] [HLSL] Make lerp overload tests stricter. NFC (PR #137898)

[Farzon Lotfi via cfe-commits]

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@@ -1,108 +1,160 @@
-// RUN: %clang_cc1 -std=hlsl202x -finclude-default-header -x hlsl -triple \
-// RUN:   dxil-pc-shadermodel6.3-library %s -emit-llvm -disable-llvm-passes \
-// RUN:   -o - | FileCheck %s --check-prefixes=CHECK \
-// RUN:   -DFNATTRS="noundef nofpclass(nan inf)" -DTARGET=dx
-// RUN: %clang_cc1 -std=hlsl202x -finclude-default-header -x hlsl -triple \
-// RUN:   spirv-unknown-vulkan-compute %s -emit-llvm -disable-llvm-passes \
-// RUN:   -o - | FileCheck %s --check-prefixes=CHECK \
-// RUN:   -DFNATTRS="spir_func noundef nofpclass(nan inf)" -DTARGET=spv
-
-// CHECK-LABEL: test_lerp_double
-// CHECK: %hlsl.lerp = call reassoc nnan ninf nsz arcp afn float @llvm.[[TARGET]].lerp.f32(float %{{.*}}, float %{{.*}}, float %{{.*}})
-// CHECK: ret float %hlsl.lerp
+// RUN: %clang_cc1 -std=hlsl202x -finclude-default-header -x hlsl -triple  dxil-pc-shadermodel6.3-library %s -emit-llvm -O1 -o - | FileCheck %s --check-prefixes=CHECK -DFNATTRS="noundef nofpclass(nan inf)" -DTARGET=dx
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farzonl wrote:

why do you need O1 for this  you can check for fptrunc without you just can't do CHECK-NEXT it would have to be all CHECK calls.

https://github.com/llvm/llvm-project/pull/137898