Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/CodeGen/AMDGPU/promote-alloca-bitcast-function.ll

@@ -0,0 +1,27 @@
+; RUN: not llc -march=amdgcn < %s 2>&1 | FileCheck %s
+
+; FIXME: Error is misleading because it's not an indirect call.
+
+; CHECK: error: <unknown>:0:0: in function crash_call_constexpr_cast void (): unsupported indirect call to function foo
+
+; Make sure that AMDGPUPromoteAlloca doesn't crash if the called
+; function is a constantexpr cast of a function.
+
+declare void @foo(float*) #0
+declare void @foo.varargs(...) #0
+
+; XCHECK: in function crash_call_constexpr_cast{{.*}}: unsupported call to function foo
+define amdgpu_kernel void @crash_call_constexpr_cast() #0 {
+  %alloca = alloca i32
+  call void bitcast (void (float*)* @foo to void (i32*)*)(i32* %alloca) #0
+  ret void
+}
+
+; XCHECK: in function crash_call_constexpr_cast{{.*}}: unsupported call to function foo.varargs
+define amdgpu_kernel void @crash_call_constexpr_cast_varargs() #0 {
+  %alloca = alloca i32
+  call void bitcast (void (...)* @foo.varargs to void (i32*)*)(i32* %alloca) #0
+  ret void
+}
+
+attributes #0 = { nounwind }