================
@@ -0,0 +1,71 @@
+// RUN: %clang_cc1 -std=hlsl202x -finclude-default-header -x hlsl -triple
dxil-pc-shadermodel6.3-library %s -fnative-half-type -fsyntax-only -verify
-verify-ignore-unexpected=warning
+
+cbuffer MatArr0Pass {
+ float2x4 A0p[2] : packoffset(c0.x);
+ float a0tail : packoffset(c4.x);
+}
+
+cbuffer MatArr0Fail {
----------------
farzonl wrote:
I think I have this right in my head for these tests but mostly just copied
clang/test/CodeGenHLSL/resources/cbuffer_align.hlsl but varied the constant
registers more because those test were just against c0 and c1.
```
c0 -> the first constant register
c1 -> the second
c5 -> the sixth
c10 -> the eleventh
…and so on.
```
After the register index, the .x/.y/.z/.w suffix picks a component within the
4-component register:
```
c5.x -> the first 32-bit component (lowest) of register c5
c1.w -> the fourth component of register c1
c0.y -> the second component of register c0
c4.z -> the third component of register c4
```
https://github.com/llvm/llvm-project/pull/179836
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