[llvm] [AMDGPU] Reorganize tests to unblock #112403 (PR #115503)

[Shilei Tian via llvm-commits]

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@@ -0,0 +1,36 @@
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -enable-var-scope -check-prefix=GFX9 %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 < %s | FileCheck -enable-var-scope -check-prefix=GFX11 %s
+
+; XFAIL: *
+
+declare hidden void @external_void_func_a15i32_inreg([15 x i32] inreg) #0
+declare hidden void @external_void_func_a16i32_inreg([16 x i32] inreg) #0
+declare hidden void @external_void_func_a15i32_inreg_i32_inreg([15 x i32] inreg, i32 inreg) #0
+declare hidden void @external_void_func_a15i32_inreg_i32_inreg__noimplicit([15 x i32] inreg, i32 inreg) #1
+
+define void @test_call_external_void_func_a15i32_inreg([15 x i32] inreg %arg0) #0 {
+  call void @external_void_func_a15i32_inreg([15 x i32] inreg %arg0)
+  ret void
+}
+
+define void @test_call_external_void_func_a16i32_inreg([16 x i32] inreg %arg0) #0 {
+  call void @external_void_func_a16i32_inreg([16 x i32] inreg %arg0)
+  ret void
+}
+
+define void @test_call_external_void_func_a15i32_inreg_i32_inreg([15 x i32] inreg %arg0, i32 inreg %arg1) #0 {
+  call void @external_void_func_a15i32_inreg_i32_inreg([15 x i32] inreg %arg0, i32 inreg %arg1)
+  ret void
+}
+
+
+define void @test_call_external_void_func_a15i32_inreg_i32_inreg([15 x i32] inreg %arg0, i32 inreg %arg1) #1 {
+  call void @external_void_func_a15i32_inreg_i32_inreg__noimplicit([15 x i32] inreg %arg0, i32 inreg %arg1)
+  ret void
+}
+
+attributes #0 = { nounwind }
+attributes #1 = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-queue-ptr" "amdgpu-no-work-group-id-x" "amdgpu-no-work-group-id-y" "amdgpu-no-work-group-id-z" "amdgpu-no-work-item-id-x" "amdgpu-no-work-item-id-y" "amdgpu-no-work-item-id-z" }
+
+!llvm.module.flags = !{!0}
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shiltian wrote:

so both `[16 x i32]` in COV5 and `[15 x i32]` in COV4 can expose the issue.

https://github.com/llvm/llvm-project/pull/115503