• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: opt %s -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
2
3; CHECK: derived %merged_value base %merged_value.base
4
5declare void @site_for_call_safpeoint()
6
7define i64 addrspace(1)* @test(i64 addrspace(1)* %base_obj_x, i64 addrspace(1)* %base_obj_y, i1 %runtime_condition_x, i1 %runtime_condition_y) gc "statepoint-example" {
8entry:
9  br i1 %runtime_condition_x, label %here, label %there
10
11here:
12 br i1 %runtime_condition_y, label %bump_here_a, label %bump_here_b
13
14bump_here_a:
15  %x_a = getelementptr i64, i64 addrspace(1)* %base_obj_x, i32 1
16  br label %merge_here
17
18bump_here_b:
19  %x_b = getelementptr i64, i64 addrspace(1)* %base_obj_x, i32 2
20  br label %merge_here
21
22
23merge_here:
24  %x = phi i64 addrspace(1)* [ %x_a , %bump_here_a ], [ %x_b , %bump_here_b ]
25  br label %merge
26
27there:
28  %y = getelementptr i64, i64 addrspace(1)* %base_obj_y, i32 1
29  br label %merge
30
31merge:
32; CHECK: merge:
33; CHECK:  %merged_value.base = phi i64 addrspace(1)* [ %base_obj_x, %merge_here ], [ %base_obj_y, %there ]
34; CHECK-NEXT:  %merged_value = phi i64 addrspace(1)* [ %x, %merge_here ], [ %y, %there ]
35  %merged_value = phi i64 addrspace(1)* [ %x, %merge_here ], [ %y, %there ]
36  %safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @site_for_call_safpeoint, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
37  ret i64 addrspace(1)* %merged_value
38}
39
40declare void @do_safepoint()
41declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
42