1; RUN: opt -safepoint-ir-verifier-print-only -verify-safepoint-ir -S %s 2>&1 | FileCheck %s
2
3; This test checks that StatepointIRVerifier does not crash on
4; a CFG with unreachable blocks.
5
6%jObject = type { [8 x i8] }
7
8define %jObject addrspace(1)* @test(%jObject addrspace(1)* %arg) gc "statepoint-example" {
9; CHECK-LABEL: Verifying gc pointers in function: test
10; CHECK-NEXT:  No illegal uses found by SafepointIRVerifier in: test
11  %safepoint_token3 = tail call token (i64, i32, double (double)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_f64f64f(i64 0, i32 0, double (double)* undef, i32 1, i32 0, double undef, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0, %jObject addrspace(1)* %arg)
12  %arg2.relocated4 = call coldcc %jObject addrspace(1)* @llvm.experimental.gc.relocate.p1jObject(token %safepoint_token3, i32 13, i32 13)
13  ret %jObject addrspace(1)* %arg2.relocated4
14
15unreachable:
16  ret %jObject addrspace(1)* null
17}
18
19; Function Attrs: nounwind
20declare %jObject addrspace(1)* @llvm.experimental.gc.relocate.p1jObject(token, i32, i32) #3
21
22declare token @llvm.experimental.gc.statepoint.p0f_f64f64f(i64, i32, double (double)*, i32, i32, ...)
23
24; In %merge %val.unrelocated, %ptr and %arg should be unrelocated.
25define void @test2(i8 addrspace(1)* %arg) gc "statepoint-example" {
26; CHECK-LABEL: Verifying gc pointers in function: test2
27; CHECK: No illegal uses found by SafepointIRVerifier in: test2
28 bci_0:
29  %ptr = getelementptr i8, i8 addrspace(1)* %arg, i64 4
30  br label %right
31
32 left:
33  %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)
34  br label %merge
35
36 right:
37  br label %merge
38
39 merge:
40  %val.unrelocated = phi i8 addrspace(1)* [ %arg, %left ], [ %ptr, %right ]
41  %c = icmp eq i8 addrspace(1)* %val.unrelocated, %arg
42  ret void
43}
44
45declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
46