1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -rewrite-statepoints-for-gc < %s | FileCheck %s
3
4target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
5target triple = "x86_64-unknown-linux-gnu"
6
7declare void @foo() gc "statepoint-example"
8
9; FIXME: In this test case %b6.base, which is inserted by RS4GC, is identical
10; to %b6.
11define i8 addrspace(1)* @test1(i1 %c, i8 addrspace(1)* %b1, i8 addrspace(1)* %b2) gc "statepoint-example" {
12; CHECK-LABEL: @test1(
13; CHECK-NEXT:  left:
14; CHECK-NEXT:    br i1 [[C:%.*]], label [[LOOP:%.*]], label [[MERGE2:%.*]]
15; CHECK:       loop:
16; CHECK-NEXT:    [[B5:%.*]] = phi i8 addrspace(1)* [ [[B2:%.*]], [[LEFT:%.*]] ], [ [[B5]], [[LOOP]] ]
17; CHECK-NEXT:    br i1 [[C]], label [[LOOP]], label [[MERGE2]]
18; CHECK:       merge2:
19; CHECK-NEXT:    [[B6_BASE:%.*]] = phi i8 addrspace(1)* [ [[B1:%.*]], [[LEFT]] ], [ [[B2]], [[LOOP]] ], !is_base_value !0
20; CHECK-NEXT:    [[B6:%.*]] = phi i8 addrspace(1)* [ [[B1]], [[LEFT]] ], [ [[B5]], [[LOOP]] ]
21; CHECK-NEXT:    [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(i8 addrspace(1)* [[B6]], i8 addrspace(1)* [[B6_BASE]]) ]
22; CHECK-NEXT:    [[B6_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 0)
23; CHECK-NEXT:    [[B6_BASE_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 1)
24; CHECK-NEXT:    ret i8 addrspace(1)* [[B6_RELOCATED]]
25;
26left:
27  br i1 %c, label %loop, label %merge2
28
29loop:
30  %b5 = phi i8 addrspace(1)* [ %b2, %left ], [ %b5, %loop ]
31  br i1 %c, label %loop, label %merge2
32
33merge2:
34  %b6 = phi i8 addrspace(1)* [ %b1, %left ], [ %b5, %loop ]
35  call void @foo() [ "deopt"() ]
36  ret i8 addrspace(1)* %b6
37}
38
39; FIXME: In this test case %b5.base and %b6.base (inserted by RS4GC) are
40; identical to %b5 and %b6 ; correspondingly.
41define i8 addrspace(1)* @test2(i1 %c, i8 addrspace(1)* %b1, i8 addrspace(1)* %b2) gc "statepoint-example" {
42; CHECK-LABEL: @test2(
43; CHECK-NEXT:  left:
44; CHECK-NEXT:    br i1 [[C:%.*]], label [[LOOP:%.*]], label [[MERGE2:%.*]]
45; CHECK:       loop:
46; CHECK-NEXT:    [[B5_BASE:%.*]] = phi i8 addrspace(1)* [ [[B2:%.*]], [[LEFT:%.*]] ], [ [[B5_BASE]], [[LOOP]] ], [ [[B6_BASE_RELOCATED:%.*]], [[MERGE2]] ], !is_base_value !0
47; CHECK-NEXT:    [[B5:%.*]] = phi i8 addrspace(1)* [ [[B2]], [[LEFT]] ], [ [[B5]], [[LOOP]] ], [ [[B6_RELOCATED:%.*]], [[MERGE2]] ]
48; CHECK-NEXT:    br i1 [[C]], label [[LOOP]], label [[MERGE2]]
49; CHECK:       merge2:
50; CHECK-NEXT:    [[B6_BASE:%.*]] = phi i8 addrspace(1)* [ [[B1:%.*]], [[LEFT]] ], [ [[B5_BASE]], [[LOOP]] ], !is_base_value !0
51; CHECK-NEXT:    [[B6:%.*]] = phi i8 addrspace(1)* [ [[B1]], [[LEFT]] ], [ [[B5]], [[LOOP]] ]
52; CHECK-NEXT:    [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(i8 addrspace(1)* [[B6_BASE]], i8 addrspace(1)* [[B6]]) ]
53; CHECK-NEXT:    [[B6_BASE_RELOCATED]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0)
54; CHECK-NEXT:    [[B6_RELOCATED]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 1)
55; CHECK-NEXT:    br i1 [[C]], label [[LOOP]], label [[EXIT:%.*]]
56; CHECK:       exit:
57; CHECK-NEXT:    ret i8 addrspace(1)* [[B6_RELOCATED]]
58;
59left:
60  br i1 %c, label %loop, label %merge2
61
62loop:
63  %b5 = phi i8 addrspace(1)* [ %b2, %left ], [ %b5, %loop ], [ %b6, %merge2 ]
64  br i1 %c, label %loop, label %merge2
65
66merge2:
67  %b6 = phi i8 addrspace(1)* [ %b1, %left ], [ %b5, %loop ]
68  call void @foo() [ "deopt"() ]
69  br i1 %c, label %loop, label %exit
70
71exit:
72  ret i8 addrspace(1)* %b6
73}
74