1 ; RUN: opt -S %s -verify | FileCheck %s
4 declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32, i32, i32)
5 declare i64 addrspace(1)* @llvm.experimental.gc.relocate.p1i64(i32, i32, i32)
6 declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
7 declare i32 @"personality_function"()
10 define i64 addrspace(1)* @test1(i8 addrspace(1)* %arg) gc "statepoint-example" {
12 %cast = bitcast i8 addrspace(1)* %arg to i64 addrspace(1)*
13 %safepoint_token = call i32 (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 0, i32 0, i32 10, i32 0, i8 addrspace(1)* %arg, i64 addrspace(1)* %cast, i8 addrspace(1)* %arg, i8 addrspace(1)* %arg)
14 %reloc = call i64 addrspace(1)* @llvm.experimental.gc.relocate.p1i64(i32 %safepoint_token, i32 12, i32 13)
15 ;; It is perfectly legal to relocate the same value multiple times...
16 %reloc2 = call i64 addrspace(1)* @llvm.experimental.gc.relocate.p1i64(i32 %safepoint_token, i32 12, i32 13)
17 %reloc3 = call i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 %safepoint_token, i32 13, i32 12)
18 ret i64 addrspace(1)* %reloc
24 ; CHECK: ret i64 addrspace(1)* %reloc
27 ; This test catches two cases where the verifier was too strict:
28 ; 1) A base doesn't need to be relocated if it's never used again
29 ; 2) A value can be replaced by one which is known equal. This
30 ; means a potentially derived pointer can be known base and that
31 ; we can't check that derived pointer are never bases.
32 define void @test2(i8 addrspace(1)* %arg, i64 addrspace(1)* %arg2) gc "statepoint-example" {
34 %cast = bitcast i8 addrspace(1)* %arg to i64 addrspace(1)*
35 %c = icmp eq i64 addrspace(1)* %cast, %arg2
36 br i1 %c, label %equal, label %notequal
42 %safepoint_token = call i32 (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 0, i32 0, i32 10, i32 0, i8 addrspace(1)* %arg, i64 addrspace(1)* %cast, i8 addrspace(1)* %arg, i8 addrspace(1)* %arg)
43 %reloc = call i64 addrspace(1)* @llvm.experimental.gc.relocate.p1i64(i32 %safepoint_token, i32 12, i32 13)
44 call void undef(i64 addrspace(1)* %reloc)
49 ; CHECK-NEXT: %reloc = call
54 ; Basic test for invoke statepoints
55 define i8 addrspace(1)* @test3(i8 addrspace(1)* %obj, i8 addrspace(1)* %obj1) gc "statepoint-example" personality i32 ()* @"personality_function" {
60 %0 = invoke i32 (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, i8 addrspace(1)* %obj, i8 addrspace(1)* %obj1)
61 to label %normal_dest unwind label %exceptional_return
64 ; CHECK-LABEL: normal_dest:
68 %obj.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 %0, i32 12, i32 12)
69 %obj1.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 %0, i32 12, i32 12)
70 ret i8 addrspace(1)* %obj.relocated
73 ; CHECK-LABEL: exceptional_return
76 %landing_pad = landingpad { i8*, i32 }
78 %relocate_token = extractvalue { i8*, i32 } %landing_pad, 1
79 %obj.relocated1 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 %relocate_token, i32 12, i32 12)
80 %obj1.relocated1 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 %relocate_token, i32 12, i32 12)
81 ret i8 addrspace(1)* %obj1.relocated1