1 ; Make sure that the compare instruction occurs after the increment to avoid 2 ; having overlapping live ranges that result in copies. We want the setcc 3 ; instruction immediately before the conditional branch. 4 ; 5 ; RUN: opt -S -loop-reduce %s | FileCheck %s 6 7 define void @foo(float* %D, i32 %E) { 8 entry: 9 br label %no_exit 10 no_exit: ; preds = %no_exit, %entry 11 %indvar = phi i32 [ 0, %entry ], [ %indvar.next, %no_exit ] ; <i32> [#uses=1] 12 volatile store float 0.000000e+00, float* %D 13 %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2] 14 ; CHECK: icmp 15 ; CHECK-NEXT: br i1 16 %exitcond = icmp eq i32 %indvar.next, %E ; <i1> [#uses=1] 17 br i1 %exitcond, label %loopexit, label %no_exit 18 loopexit: ; preds = %no_exit 19 ret void 20 } 21 22
