| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -S -globalopt -instcombine | FileCheck %s |
| 2 | ;; check that global opt turns integers that only hold 0 or 1 into bools. |
| 3 | |
| 4 | @G = internal addrspace(1) global i32 0 |
| 5 | ; CHECK: @G |
| 6 | ; CHECK: addrspace(1) |
| 7 | ; CHECK: global i1 false |
| 8 | |
| 9 | define void @set1() { |
| 10 | store i32 0, i32 addrspace(1)* @G |
| 11 | ; CHECK: store i1 false |
| 12 | ret void |
| 13 | } |
| 14 | |
| 15 | define void @set2() { |
| 16 | store i32 1, i32 addrspace(1)* @G |
| 17 | ; CHECK: store i1 true |
| 18 | ret void |
| 19 | } |
| 20 | |
| 21 | define i1 @get() { |
| 22 | ; CHECK-LABEL: @get( |
| 23 | %A = load i32, i32 addrspace(1) * @G |
| 24 | %C = icmp slt i32 %A, 2 |
| 25 | ret i1 %C |
| 26 | ; CHECK: ret i1 true |
| 27 | } |
| 28 | |