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1; RUN: llc -mtriple=i686-- < %s | FileCheck %s2 3; The comparison happens after the relevant use, so the stride can easily4; be changed. The comparison can be done in a narrower mode than the5; induction variable.6; TODO: By making the first store post-increment as well, the loop setup7; could be made simpler.8 9define void @foo() nounwind {10; CHECK-LABEL: foo:11; CHECK-NOT: ret12; CHECK: cmpl $1013; CHECK: ret14 15entry:16 br label %loop17 18loop:19 %indvar = phi i32 [ 0, %entry ], [ %i.2.0.us1534, %loop ] ; <i32> [#uses=1]20 %i.2.0.us1534 = add i32 %indvar, 1 ; <i32> [#uses=3]21 %tmp628.us1540 = shl i32 %i.2.0.us1534, 1 ; <i32> [#uses=1]22 %tmp645646647.us1547 = sext i32 %tmp628.us1540 to i64 ; <i64> [#uses=1]23 store i64 %tmp645646647.us1547, ptr null24 %tmp611.us1535 = icmp eq i32 %i.2.0.us1534, 4 ; <i1> [#uses=2]25 %tmp623.us1538 = select i1 %tmp611.us1535, i32 6, i32 0 ; <i32> [#uses=1]26 store i32 %tmp623.us1538, ptr null27 br i1 %tmp611.us1535, label %exit, label %loop28 29exit:30 ret void31}32