Imported Upstream version 5.18.0.161

Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98

external/llvm/test/SafepointIRVerifier/from-same-relocation-in-phi-nodes.ll

@@ -0,0 +1,26 @@
+; XFAIL: *
+; RUN: opt -safepoint-ir-verifier-print-only -verify-safepoint-ir -S %s 2>&1 | FileCheck %s
+
+; In %merge %val.unrelocated, %ptr and %arg should be unrelocated.
+; FIXME: if this test fails it is a false-positive alarm. IR is correct.
+define void @test.unrelocated-phi.ok(i8 addrspace(1)* %arg) gc "statepoint-example" {
+; CHECK-LABEL: Verifying gc pointers in function: test.unrelocated-phi.ok
+ bci_0:
+  %ptr = getelementptr i8, i8 addrspace(1)* %arg, i64 4
+  br i1 undef, label %left, label %right
+
+ left:
+  %safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
+  br label %merge
+
+ right:
+  br label %merge
+
+ merge:
+; CHECK: No illegal uses found by SafepointIRVerifier in: test.unrelocated-phi.ok
+  %val.unrelocated = phi i8 addrspace(1)* [ %arg, %left ], [ %ptr, %right ]
+  %c = icmp eq i8 addrspace(1)* %val.unrelocated, %arg
+  ret void
+}
+
+declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)