1 ; RUN: opt %s -rewrite-statepoints-for-gc -S | FileCheck %s
3 define i64 addrspace(1)* @test(<2 x i64 addrspace(1)*> %vec, i32 %idx) gc "statepoint-example" {
5 ; CHECK: extractelement
6 ; CHECK: extractelement
9 ; CHECK-DAG: ; (%base_ee, %base_ee)
11 ; CHECK-DAG: ; (%base_ee, %obj)
12 ; Note that the second extractelement is actually redundant here. A correct output would
13 ; be to reuse the existing obj as a base since it is actually a base pointer.
15 %obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx
16 %safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0)
18 ret i64 addrspace(1)* %obj
21 define i64 addrspace(1)* @test2(<2 x i64 addrspace(1)*>* %ptr, i1 %cnd, i32 %idx1, i32 %idx2)
22 gc "statepoint-example" {
25 br i1 %cnd, label %taken, label %untaken
27 %obja = load <2 x i64 addrspace(1)*>, <2 x i64 addrspace(1)*>* %ptr
30 %objb = load <2 x i64 addrspace(1)*>, <2 x i64 addrspace(1)*>* %ptr
33 %vec = phi <2 x i64 addrspace(1)*> [%obja, %taken], [%objb, %untaken]
34 br i1 %cnd, label %taken2, label %untaken2
36 %obj0 = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx1
39 %obj1 = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx2
42 ; CHECK-LABEL: merge2:
43 ; CHECK: %obj.base = phi i64 addrspace(1)*
44 ; CHECK: %obj = phi i64 addrspace(1)*
47 ; CHECK-DAG: ; (%obj.base, %obj)
49 ; CHECK-DAG: ; (%obj.base, %obj.base)
50 %obj = phi i64 addrspace(1)* [%obj0, %taken2], [%obj1, %untaken2]
51 %safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0)
52 ret i64 addrspace(1)* %obj
55 define i64 addrspace(1)* @test3(i64 addrspace(1)* %ptr)
56 gc "statepoint-example" {
59 %vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %ptr, i32 0
60 %obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 0
61 ; CHECK: insertelement
62 ; CHECK: extractelement
65 ; CHECK-DAG: ; (%ptr, %obj)
66 %safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0)
67 ret i64 addrspace(1)* %obj
69 define i64 addrspace(1)* @test4(i64 addrspace(1)* %ptr)
70 gc "statepoint-example" {
73 %derived = getelementptr i64, i64 addrspace(1)* %ptr, i64 16
74 %veca = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %derived, i32 0
75 %vec = insertelement <2 x i64 addrspace(1)*> %veca, i64 addrspace(1)* %ptr, i32 1
76 %obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 0
79 ; CHECK-DAG: ; (%ptr, %obj)
81 ; CHECK-DAG: ; (%ptr, %ptr)
82 %safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0)
83 ret i64 addrspace(1)* %obj
86 declare void @do_safepoint()
88 declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)