[llvm-branch-commits] [clang] [llvm] [DirectX] Add Range Overlap validation to `DXILPostOptimizationValidation.cpp` (PR #148919)

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@@ -0,0 +1,15 @@
+; RUN: not opt -S -passes='dxil-post-optimization-validation' 
-mtriple=dxil-pc-shadermodel6.6-compute %s 2>&1 | FileCheck %s
+; CHECK: error: register CBuffer (space=0, register=0) is overlapping with 
register CBuffer (space=0, register=2), verify your root signature definition
+
+define void @CSMain() "hlsl.shader"="compute" {
+entry:
+  ret void
+}
+
+; RootConstants(num32BitConstants=4, b2), DescriptorTable(CBV(b10, 
numDescriptors=3))
----------------
joaosaffran wrote:

Thanks, it was supposed to be: `RootConstants(num32BitConstants=4, b2), 
DescriptorTable(CBV(b0, numDescriptors=3))`. In that case, `b2` will overlap.

https://github.com/llvm/llvm-project/pull/148919
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