| Brendon Cahoon | 485bea74 | 2015-05-14 17:31:40 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=hexagon -mcpu=hexagonv5 -O2 -disable-block-placement=0 < %s | FileCheck %s |
| 2 | |
| 3 | ; Test that there is no redundant register assignment in the hardware loop |
| 4 | ; preheader. |
| 5 | |
| 6 | ; CHECK-NOT: r{{.*}} = #5 |
| 7 | |
| 8 | @g = external global i32 |
| 9 | |
| 10 | define void @foo() #0 { |
| 11 | entry: |
| 12 | br i1 undef, label %if.end38, label %for.body |
| 13 | |
| 14 | for.body: |
| 15 | %loopIdx.051 = phi i32 [ %inc, %for.body ], [ 0, %entry ] |
| 16 | store i32 1, i32* @g, align 4 |
| 17 | %inc = add i32 %loopIdx.051, 1 |
| 18 | %cmp9 = icmp ult i32 %inc, 5 |
| 19 | br i1 %cmp9, label %for.body, label %if.end38 |
| 20 | |
| 21 | if.end38: |
| 22 | ret void |
| 23 | } |