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- ; Make sure that the compare instruction occurs after the increment to avoid
- ; having overlapping live ranges that result in copies. We want the setcc
- ; instruction immediately before the conditional branch.
- ;
- ; RUN: opt -S -loop-reduce < %s | FileCheck %s
- define void @foo(float* %D, i32 %E) {
- entry:
- br label %no_exit
- no_exit: ; preds = %no_exit, %entry
- %indvar = phi i32 [ 0, %entry ], [ %indvar.next, %no_exit ] ; <i32> [#uses=1]
- store volatile float 0.000000e+00, float* %D
- %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
- ; CHECK: icmp
- ; CHECK-NEXT: br i1
- %exitcond = icmp eq i32 %indvar.next, %E ; <i1> [#uses=1]
- br i1 %exitcond, label %loopexit, label %no_exit
- loopexit: ; preds = %no_exit
- ret void
- }
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