[llvm] [AMDGPU] promote i1 arg type for admgpu_cs (PR #82971)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Nick Anderson (nickleus27)

<details>
<summary>Changes</summary>

fixes #<!-- -->68087 
Not sure where to put regression tests for this pr? Also, should i1 args not in reg also be promoted?

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Full diff: https://github.com/llvm/llvm-project/pull/82971.diff


1 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td (+1) 


``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td b/llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td
index c5207228dc913f..a988140df3e89b 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td
+++ b/llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td
@@ -66,6 +66,7 @@ def RetCC_SI_Gfx : CallingConv<[
 
 def CC_SI_SHADER : CallingConv<[
 
+  CCIfType<[i1], CCPromoteToType<i16>>,
   CCIfInReg<CCIfType<[f32, i32, f16, i16, v2i16, v2f16, bf16, v2bf16] , CCAssignToReg<[
     SGPR0, SGPR1, SGPR2, SGPR3, SGPR4, SGPR5, SGPR6, SGPR7,
     SGPR8, SGPR9, SGPR10, SGPR11, SGPR12, SGPR13, SGPR14, SGPR15,

``````````

</details>


https://github.com/llvm/llvm-project/pull/82971