1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -indvars < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-apple-macosx10.11.0" 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workerdeclare void @use(i1) 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerdefine void @f(i32 %x) { 9*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @f( 10*9880d681SAndroid Build Coastguard Worker entry: 11*9880d681SAndroid Build Coastguard Worker %conv = sext i32 %x to i64 12*9880d681SAndroid Build Coastguard Worker %sub = add i64 %conv, -1 13*9880d681SAndroid Build Coastguard Worker %ec = icmp sgt i32 %x, 0 14*9880d681SAndroid Build Coastguard Worker br i1 %ec, label %loop, label %leave 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Worker loop: 17*9880d681SAndroid Build Coastguard Worker; CHECK: loop: 18*9880d681SAndroid Build Coastguard Worker %iv = phi i64 [ 0, %entry ], [ %iv.inc, %loop ] 19*9880d681SAndroid Build Coastguard Worker %iv.inc = add i64 %iv, 1 20*9880d681SAndroid Build Coastguard Worker %cmp = icmp slt i64 %iv, %sub 21*9880d681SAndroid Build Coastguard Worker call void @use(i1 %cmp) 22*9880d681SAndroid Build Coastguard Worker; CHECK: call void @use(i1 %cmp) 23*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: call void @use(i1 true) 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Worker %be.cond = icmp slt i64 %iv.inc, %conv 26*9880d681SAndroid Build Coastguard Worker br i1 %be.cond, label %loop, label %leave 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Worker leave: 29*9880d681SAndroid Build Coastguard Worker ret void 30*9880d681SAndroid Build Coastguard Worker} 31