1*9880d681SAndroid Build Coastguard Worker; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -simplifycfg -S | FileCheck %s 3*9880d681SAndroid Build Coastguard Worker; PR2540 4*9880d681SAndroid Build Coastguard Worker; Outval should end up with a select from 0/2, not all constants. 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" 7*9880d681SAndroid Build Coastguard Workertarget triple = "i386-pc-linux-gnu" 8*9880d681SAndroid Build Coastguard Worker@g_37 = common global i32 0 ; <i32*> [#uses=1] 9*9880d681SAndroid Build Coastguard Worker@.str = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1] 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Workerdefine i32 @main() nounwind { 12*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @main( 13*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: entry: 14*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[L:%.*]] = load i32, i32* @g_37, align 4 15*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[CMPA:%.*]] = icmp ne i32 [[L]], 0 16*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: br i1 [[CMPA]], label %func_1.exit, label %mooseblock 17*9880d681SAndroid Build Coastguard Worker; CHECK: mooseblock: 18*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[CMPB:%.*]] = icmp eq i1 [[CMPA]], false 19*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[BRMERGE:%.*]] = or i1 [[CMPB]], [[CMPA]] 20*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[DOTMUX:%.*]] = select i1 [[CMPB]], i32 0, i32 2 21*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: br i1 [[BRMERGE]], label %func_1.exit, label %infloop 22*9880d681SAndroid Build Coastguard Worker; CHECK: func_1.exit: 23*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[OUTVAL:%.*]] = phi i32 [ 1, %entry ], [ [[DOTMUX]], %mooseblock ] 24*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[POUT:%.*]] = tail call i32 (i8*, ...) @printf 25*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret i32 0 26*9880d681SAndroid Build Coastguard Worker; CHECK: infloop: 27*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: br label %infloop 28*9880d681SAndroid Build Coastguard Worker; 29*9880d681SAndroid Build Coastguard Workerentry: 30*9880d681SAndroid Build Coastguard Worker %l = load i32, i32* @g_37, align 4 ; <i32> [#uses=1] 31*9880d681SAndroid Build Coastguard Worker %cmpa = icmp ne i32 %l, 0 ; <i1> [#uses=3] 32*9880d681SAndroid Build Coastguard Worker br i1 %cmpa, label %func_1.exit, label %mooseblock 33*9880d681SAndroid Build Coastguard Worker 34*9880d681SAndroid Build Coastguard Workermooseblock: ; preds = %entry 35*9880d681SAndroid Build Coastguard Worker %cmpb = icmp eq i1 %cmpa, false ; <i1> [#uses=2] 36*9880d681SAndroid Build Coastguard Worker br i1 %cmpb, label %monkeyblock, label %beeblock 37*9880d681SAndroid Build Coastguard Worker 38*9880d681SAndroid Build Coastguard Workermonkeyblock: ; preds = %monkeyblock, %mooseblock 39*9880d681SAndroid Build Coastguard Worker br i1 %cmpb, label %cowblock, label %monkeyblock 40*9880d681SAndroid Build Coastguard Worker 41*9880d681SAndroid Build Coastguard Workerbeeblock: ; preds = %beeblock, %mooseblock 42*9880d681SAndroid Build Coastguard Worker br i1 %cmpa, label %cowblock, label %beeblock 43*9880d681SAndroid Build Coastguard Worker 44*9880d681SAndroid Build Coastguard Workercowblock: ; preds = %beeblock, %monkeyblock 45*9880d681SAndroid Build Coastguard Worker %cowval = phi i32 [ 2, %beeblock ], [ 0, %monkeyblock ] ; <i32> [#uses=1] 46*9880d681SAndroid Build Coastguard Worker br label %func_1.exit 47*9880d681SAndroid Build Coastguard Worker 48*9880d681SAndroid Build Coastguard Workerfunc_1.exit: ; preds = %cowblock, %entry 49*9880d681SAndroid Build Coastguard Worker %outval = phi i32 [ %cowval, %cowblock ], [ 1, %entry ] ; <i32> [#uses=1] 50*9880d681SAndroid Build Coastguard Worker %pout = tail call i32 (i8*, ...) @printf( i8* noalias getelementptr ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 %outval ) nounwind ; <i32> [#uses=0] 51*9880d681SAndroid Build Coastguard Worker ret i32 0 52*9880d681SAndroid Build Coastguard Worker} 53*9880d681SAndroid Build Coastguard Worker 54*9880d681SAndroid Build Coastguard Workerdeclare i32 @printf(i8*, ...) nounwind 55*9880d681SAndroid Build Coastguard Worker 56