[clang] 0c9b242 - [HLSL] Adding a test change I forgot to add

[Chris Bieneman via cfe-commits]

Author: Chris Bieneman
Date: 2022-09-13T20:53:39-05:00
New Revision: 0c9b242cf0af15fa154d006cb25f20c7bf05d60a

URL: https://github.com/llvm/llvm-project/commit/0c9b242cf0af15fa154d006cb25f20c7bf05d60a
DIFF: https://github.com/llvm/llvm-project/commit/0c9b242cf0af15fa154d006cb25f20c7bf05d60a.diff

LOG: [HLSL] Adding a test change I forgot to add

This test just verifies that even at -O0 the buffer subscript operators
are inlined. The original change was
fb5baffc28c8beaf790a2fb1c8a863d29020bfbe.

Added: 
    clang/test/CodeGenHLSL/builtins/RWBuffer-subscript.hlsl

Modified: 
    

Removed: 
    


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diff  --git a/clang/test/CodeGenHLSL/builtins/RWBuffer-subscript.hlsl b/clang/test/CodeGenHLSL/builtins/RWBuffer-subscript.hlsl
new file mode 100644
index 0000000000000..da8a1e538ec5e
--- /dev/null
+++ b/clang/test/CodeGenHLSL/builtins/RWBuffer-subscript.hlsl
@@ -0,0 +1,16 @@
+// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -emit-llvm -o - -O0 %s | FileCheck %s
+
+RWBuffer<int> In;
+RWBuffer<int> Out;
+
+[numthreads(1,1,1)]
+void main(unsigned GI : SV_GroupIndex) {
+  Out[GI] = In[GI];
+}
+
+// Even at -O0 the subscript operators get inlined. The -O0 IR is a bit messy
+// and confusing to follow so the match here is pretty weak.
+
+// CHECK: define internal void @"?main@@YAXI at Z"
+// CHECK-NOT: call
+// CHECK: ret void