1 ; RUN: opt %s -rewrite-statepoints-for-gc -rs4gc-use-deopt-bundles -S | FileCheck %s
4 define i64 addrspace(1)* @test(<2 x i64 addrspace(1)*> %vec, i32 %idx) gc "statepoint-example" {
6 ; CHECK: extractelement
7 ; CHECK: extractelement
10 ; CHECK-DAG: ; (%base_ee, %base_ee)
12 ; CHECK-DAG: ; (%base_ee, %obj)
13 ; Note that the second extractelement is actually redundant here. A correct output would
14 ; be to reuse the existing obj as a base since it is actually a base pointer.
16 %obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx
17 call void @do_safepoint() [ "deopt"() ]
18 ret i64 addrspace(1)* %obj
21 define i64 addrspace(1)* @test2(<2 x i64 addrspace(1)*>* %ptr, i1 %cnd, i32 %idx1, i32 %idx2) gc "statepoint-example" {
24 br i1 %cnd, label %taken, label %untaken
26 taken: ; preds = %entry
27 %obja = load <2 x i64 addrspace(1)*>, <2 x i64 addrspace(1)*>* %ptr
30 untaken: ; preds = %entry
31 %objb = load <2 x i64 addrspace(1)*>, <2 x i64 addrspace(1)*>* %ptr
34 merge: ; preds = %untaken, %taken
35 %vec = phi <2 x i64 addrspace(1)*> [ %obja, %taken ], [ %objb, %untaken ]
36 br i1 %cnd, label %taken2, label %untaken2
38 taken2: ; preds = %merge
39 %obj0 = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx1
42 untaken2: ; preds = %merge
43 %obj1 = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx2
46 merge2: ; preds = %untaken2, %taken2
47 ; CHECK-LABEL: merge2:
48 ; CHECK-NEXT: %obj = phi i64 addrspace(1)*
49 ; CHECK-NEXT: statepoint
51 ; CHECK-DAG: ; (%obj, %obj)
52 %obj = phi i64 addrspace(1)* [ %obj0, %taken2 ], [ %obj1, %untaken2 ]
53 call void @do_safepoint() [ "deopt"() ]
54 ret i64 addrspace(1)* %obj
57 define i64 addrspace(1)* @test3(i64 addrspace(1)* %ptr) gc "statepoint-example" {
59 ; CHECK: insertelement
60 ; CHECK: extractelement
63 ; CHECK-DAG: (%obj, %obj)
65 %vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %ptr, i32 0
66 %obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 0
67 call void @do_safepoint() [ "deopt"() ]
68 ret i64 addrspace(1)* %obj
71 define i64 addrspace(1)* @test4(i64 addrspace(1)* %ptr) gc "statepoint-example" {
75 ; CHECK-DAG: ; (%ptr, %obj)
77 ; CHECK-DAG: ; (%ptr, %ptr)
78 ; When we can optimize an extractelement from a known
79 ; index and avoid introducing new base pointer instructions
81 %derived = getelementptr i64, i64 addrspace(1)* %ptr, i64 16
82 %veca = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %derived, i32 0
83 %vec = insertelement <2 x i64 addrspace(1)*> %veca, i64 addrspace(1)* %ptr, i32 1
84 %obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 0
85 call void @do_safepoint() [ "deopt"() ]
86 ret i64 addrspace(1)* %obj
89 declare void @use(i64 addrspace(1)*) "gc-leaf-function"
91 define void @test5(i1 %cnd, i64 addrspace(1)* %obj) gc "statepoint-example" {
94 ; CHECK-DAG: (%obj, %bdv)
95 ; When we fundementally have to duplicate
97 %gep = getelementptr i64, i64 addrspace(1)* %obj, i64 1
98 %vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %gep, i32 0
99 %bdv = extractelement <2 x i64 addrspace(1)*> %vec, i32 0
100 call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
101 call void @use(i64 addrspace(1)* %bdv)
105 define void @test6(i1 %cnd, i64 addrspace(1)* %obj, i64 %idx) gc "statepoint-example" {
106 ; CHECK-LABEL: @test6
107 ; CHECK: %gep = getelementptr i64, i64 addrspace(1)* %obj, i64 1
108 ; CHECK: %vec.base = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %obj, i32 0, !is_base_value !0
109 ; CHECK: %vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %gep, i32 0
110 ; CHECK: %bdv.base = extractelement <2 x i64 addrspace(1)*> %vec.base, i64 %idx, !is_base_value !0
111 ; CHECK: %bdv = extractelement <2 x i64 addrspace(1)*> %vec, i64 %idx
112 ; CHECK: gc.statepoint
114 ; CHECK-DAG: (%bdv.base, %bdv)
115 ; A more complicated example involving vector and scalar bases.
116 ; This is derived from a failing test case when we didn't have correct
117 ; insertelement handling.
119 %gep = getelementptr i64, i64 addrspace(1)* %obj, i64 1
120 %vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %gep, i32 0
121 %bdv = extractelement <2 x i64 addrspace(1)*> %vec, i64 %idx
122 call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
123 call void @use(i64 addrspace(1)* %bdv)
127 define i64 addrspace(1)* @test7(i1 %cnd, i64 addrspace(1)* %obj, i64 addrspace(1)* %obj2) gc "statepoint-example" {
128 ; CHECK-LABEL: @test7
130 %vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %obj2, i32 0
133 merge1: ; preds = %merge1, %entry
134 ; CHECK-LABEL: merge1:
140 %vec2 = phi <2 x i64 addrspace(1)*> [ %vec, %entry ], [ %vec3, %merge1 ]
141 %gep = getelementptr i64, i64 addrspace(1)* %obj2, i64 1
142 %vec3 = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %gep, i32 0
143 br i1 %cnd, label %merge1, label %next1
145 next1: ; preds = %merge1
146 ; CHECK-LABEL: next1:
149 %bdv = extractelement <2 x i64 addrspace(1)*> %vec2, i32 0
152 merge: ; preds = %merge, %next1
153 ; CHECK-LABEL: merge:
156 ; CHECK: gc.statepoint
158 ; CHECK-DAG: (%objb.base, %objb)
159 %objb = phi i64 addrspace(1)* [ %obj, %next1 ], [ %bdv, %merge ]
160 br i1 %cnd, label %merge, label %next
162 next: ; preds = %merge
163 call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
164 ret i64 addrspace(1)* %objb
167 declare void @do_safepoint()