================
@@ -0,0 +1,39 @@
+; RUN: opt -S --dxil-prepare %s | FileCheck %s
+
+; This test tests the whitelist inside of DxilPrepare.cpp.
+; It ensures that certain metadata nodes are removed that aren't
+; in the whitelist, and that certain nodes may remain that
+; are on the whitelist.
+
+target triple = "dxilv1.0-unknown-shadermodel6.0-compute"
+
+; Function Attrs: noinline nounwind memory(readwrite, inaccessiblemem: none)
+define void @main(i32* %ptr) {
+entry:
+ ; metadata ID changes to 0 once the current !0 and !1 are removed
+ ; since they aren't in the whitelist. range needs a payload.
+ ; CHECK: %val = load i32, ptr %ptr, align 4, !range !0
----------------
bogner wrote:
Better to pattern match the argument and check it later:
```
CHECK: %val = load i32, ptr %ptr, align 4, !range [[RANGEMD:![0-9]+]]
...
CHECK: [RANGEMD] = !{i32 1, i32 5}
```
https://github.com/llvm/llvm-project/pull/136386
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