| Florian Hahn | 7c122c1 | 2019-01-09 21:04:36 +0000 | [diff] [blame] | 1 | ; RUN: llc -mtriple arm64-ios- %s -o - | FileCheck %s |
| 2 | |||||
| 3 | ; Check the -8 constant is shrunk if there are multiple users of the AND instruction. | ||||
| 4 | |||||
| 5 | ; CHECK-LABEL: _test: | ||||
| 6 | ; CHECK: and x0, x0, #0xfffffff8 | ||||
| 7 | ; CHECK-NEXT: add x19, x0, #10 | ||||
| 8 | ; CHECK-NEXT: bl _user | ||||
| 9 | |||||
| 10 | define i64 @test(i32 %a) { | ||||
| 11 | %ext = zext i32 %a to i64 | ||||
| 12 | %v1 = and i64 %ext, -8 | ||||
| 13 | %v2 = add i64 %v1, 10 | ||||
| 14 | call void @user(i64 %v1) | ||||
| 15 | ret i64 %v2 | ||||
| 16 | } | ||||
| 17 | |||||
| 18 | declare void @user(i64) | ||||