1*9880d681SAndroid Build Coastguard Worker; Test shortening of NILL to NILF when the result is used as a rotate amount. 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Worker; Test 32-bit rotate. 6*9880d681SAndroid Build Coastguard Workerdefine i32 @f1(i32 %val, i32 %amt) { 7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1: 8*9880d681SAndroid Build Coastguard Worker; CHECK: nill %r3, 31 9*9880d681SAndroid Build Coastguard Worker; CHECK: rll %r2, %r2, 0(%r3) 10*9880d681SAndroid Build Coastguard Worker %mod = urem i32 %amt, 32 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Worker %inv = sub i32 32, %mod 13*9880d681SAndroid Build Coastguard Worker %parta = shl i32 %val, %mod 14*9880d681SAndroid Build Coastguard Worker %partb = lshr i32 %val, %inv 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Worker %rotl = or i32 %parta, %partb 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Worker ret i32 %rotl 19*9880d681SAndroid Build Coastguard Worker} 20*9880d681SAndroid Build Coastguard Worker 21*9880d681SAndroid Build Coastguard Worker; Test 64-bit rotate. 22*9880d681SAndroid Build Coastguard Workerdefine i64 @f2(i64 %val, i64 %amt) { 23*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2: 24*9880d681SAndroid Build Coastguard Worker; CHECK: nill %r3, 31 25*9880d681SAndroid Build Coastguard Worker; CHECK: rllg %r2, %r2, 0(%r3) 26*9880d681SAndroid Build Coastguard Worker %mod = urem i64 %amt, 32 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Worker %inv = sub i64 64, %mod 29*9880d681SAndroid Build Coastguard Worker %parta = shl i64 %val, %mod 30*9880d681SAndroid Build Coastguard Worker %partb = lshr i64 %val, %inv 31*9880d681SAndroid Build Coastguard Worker 32*9880d681SAndroid Build Coastguard Worker %rotl = or i64 %parta, %partb 33*9880d681SAndroid Build Coastguard Worker 34*9880d681SAndroid Build Coastguard Worker ret i64 %rotl 35*9880d681SAndroid Build Coastguard Worker} 36