| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -tail-merge-threshold 2 < %s | FileCheck %s |
| |
| ; Test that we still do some merging if a block has more than |
| ; tail-merge-threshold predecessors. |
| |
| ; CHECK: callq bar |
| ; CHECK: callq bar |
| ; CHECK: callq bar |
| ; CHECK-NOT: callq |
| |
| declare void @bar() |
| |
| define void @foo(i32 %xxx) { |
| entry: |
| switch i32 %xxx, label %bb4 [ |
| i32 0, label %bb0 |
| i32 1, label %bb1 |
| i32 2, label %bb2 |
| i32 3, label %bb3 |
| ] |
| |
| bb0: |
| call void @bar() |
| br label %bb5 |
| |
| bb1: |
| call void @bar() |
| br label %bb5 |
| |
| bb2: |
| call void @bar() |
| br label %bb5 |
| |
| bb3: |
| call void @bar() |
| br label %bb5 |
| |
| bb4: |
| call void @bar() |
| br label %bb5 |
| |
| bb5: |
| ret void |
| } |
