[llvm] [AMDGCN] Error checking for llvm.amdgcn.init.exec.from.input intrinsic (PR #128176)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,40 @@
+; RUN: not llc -mtriple=amdgcn -mcpu=gfx942 -O3 -global-isel=true -o - %s 2>&1 | FileCheck -check-prefix=ERR %s
+
+source_filename = "llvm.amdgcn.init.exec.wave32.ll"
+
+ at G = global i32 -2147483648
+ at G.1 = global <32 x i32> splat (i32 1)
+ at G.2 = global <16 x i64> splat (i64 1)
+ at G.3 = global <8 x i1> zeroinitializer
+
+define amdgpu_ps float @test_init_exec(float %a, float %b) {
+main_body:
+  %s = fadd float %a, %b
+  call void @llvm.amdgcn.init.exec(i64 74565)
+  ret float %s
+}
+
+define amdgpu_ps float @test_init_exec_from_input(i32 inreg %0, i32 inreg %1, i32 inreg %2, i32 inreg %count, float %a, float %b) {
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arsenm wrote:

This should have failed the IR verifier 

https://github.com/llvm/llvm-project/pull/128176