[clang] [llvm] Adding splitdouble HLSL function (PR #109331)

[Farzon Lotfi via cfe-commits]

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@@ -0,0 +1,16 @@
+; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv-unknown-unknown %s -o - | FileCheck %s
+; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-unknown %s -o - -filetype=obj | spirv-val %}
+
+; Make sure lowering is correctly generating spirv code.
+
+define spir_func noundef i32 @test_scalar(double noundef %D) local_unnamed_addr {
+entry:
+  ; CHECK: %[[#]] = OpBitcast %[[#]] %[[#]]
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farzonl wrote:

when you do `[[#]]` you aren't checking any of the values. 

https://github.com/llvm/llvm-project/pull/109331