| Sanjoy Das | 0407108 | 2016-01-29 00:28:57 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 2 | |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 3 | |
| Sanjoy Das | 0407108 | 2016-01-29 00:28:57 +0000 | [diff] [blame] | 4 | declare i1 @runtime_value() "gc-leaf-function" |
| 5 | |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 6 | declare void @do_safepoint() |
| 7 | |
| 8 | define void @select_of_phi(i64 addrspace(1)* %base_obj_x, i64 addrspace(1)* %base_obj_y) gc "statepoint-example" { |
| 9 | entry: |
| 10 | br label %loop |
| 11 | |
| Sanjoy Das | 0407108 | 2016-01-29 00:28:57 +0000 | [diff] [blame] | 12 | loop: ; preds = %merge, %entry |
| 13 | %current_x = phi i64 addrspace(1)* [ %base_obj_x, %entry ], [ %next_x, %merge ] |
| 14 | %current_y = phi i64 addrspace(1)* [ %base_obj_y, %entry ], [ %next_y, %merge ] |
| 15 | %current = phi i64 addrspace(1)* [ null, %entry ], [ %next, %merge ] |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 16 | %condition = call i1 @runtime_value() |
| 17 | %next_x = getelementptr i64, i64 addrspace(1)* %current_x, i32 1 |
| 18 | %next_y = getelementptr i64, i64 addrspace(1)* %current_y, i32 1 |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 19 | br i1 %condition, label %true, label %false |
| 20 | |
| Sanjoy Das | 0407108 | 2016-01-29 00:28:57 +0000 | [diff] [blame] | 21 | true: ; preds = %loop |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 22 | br label %merge |
| 23 | |
| Sanjoy Das | 0407108 | 2016-01-29 00:28:57 +0000 | [diff] [blame] | 24 | false: ; preds = %loop |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 25 | br label %merge |
| 26 | |
| Sanjoy Das | 0407108 | 2016-01-29 00:28:57 +0000 | [diff] [blame] | 27 | merge: ; preds = %false, %true |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 28 | %next = phi i64 addrspace(1)* [ %next_x, %true ], [ %next_y, %false ] |
| Sanjoy Das | 0407108 | 2016-01-29 00:28:57 +0000 | [diff] [blame] | 29 | call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ] |
| Philip Reames | a5aeaf4 | 2015-02-28 00:20:48 +0000 | [diff] [blame] | 30 | br label %loop |
| 31 | } |
| Sanjoy Das | 0407108 | 2016-01-29 00:28:57 +0000 | [diff] [blame] | 32 | ; CHECK: Base Pairs (w/o Relocation): |
| 33 | ; CHECK-DAG: derived %next base %next.base |
| 34 | ; CHECK-DAG: derived %next_x base %base_obj_x |
| 35 | ; CHECK-DAG: derived %next_y base %base_obj_y |