1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -S -instcombine | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; Derived from gcc.c-torture/execute/frame-address.c 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @func( 6*9880d681SAndroid Build Coastguard Worker; CHECK: return: 7*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: ret i32 0 8*9880d681SAndroid Build Coastguard Worker; CHECK: ret i32 %retval 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Workerdefine i32 @func(i8* %c, i8* %f) nounwind uwtable readnone noinline ssp { 11*9880d681SAndroid Build Coastguard Workerentry: 12*9880d681SAndroid Build Coastguard Worker %d = alloca i8, align 1 13*9880d681SAndroid Build Coastguard Worker store i8 0, i8* %d, align 1 14*9880d681SAndroid Build Coastguard Worker %cmp = icmp ugt i8* %d, %c 15*9880d681SAndroid Build Coastguard Worker br i1 %cmp, label %if.else, label %if.then 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workerif.then: ; preds = %entry 18*9880d681SAndroid Build Coastguard Worker %cmp2 = icmp ule i8* %d, %f 19*9880d681SAndroid Build Coastguard Worker %not.cmp1 = icmp uge i8* %c, %f 20*9880d681SAndroid Build Coastguard Worker %.cmp2 = and i1 %cmp2, %not.cmp1 21*9880d681SAndroid Build Coastguard Worker %land.ext = zext i1 %.cmp2 to i32 22*9880d681SAndroid Build Coastguard Worker br label %return 23*9880d681SAndroid Build Coastguard Worker 24*9880d681SAndroid Build Coastguard Workerif.else: ; preds = %entry 25*9880d681SAndroid Build Coastguard Worker %cmp5 = icmp uge i8* %d, %f 26*9880d681SAndroid Build Coastguard Worker %not.cmp3 = icmp ule i8* %c, %f 27*9880d681SAndroid Build Coastguard Worker %.cmp5 = and i1 %cmp5, %not.cmp3 28*9880d681SAndroid Build Coastguard Worker %land.ext7 = zext i1 %.cmp5 to i32 29*9880d681SAndroid Build Coastguard Worker br label %return 30*9880d681SAndroid Build Coastguard Worker 31*9880d681SAndroid Build Coastguard Workerreturn: ; preds = %if.else, %if.then 32*9880d681SAndroid Build Coastguard Worker %retval.0 = phi i32 [ %land.ext, %if.then ], [ %land.ext7, %if.else ] 33*9880d681SAndroid Build Coastguard Worker ret i32 %retval.0 34*9880d681SAndroid Build Coastguard Worker} 35*9880d681SAndroid Build Coastguard Worker 36