1*9880d681SAndroid Build Coastguard Worker; Test selection of addresses with indices in cases where the address 2*9880d681SAndroid Build Coastguard Worker; is used once. 3*9880d681SAndroid Build Coastguard Worker; 4*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; A simple index address. 7*9880d681SAndroid Build Coastguard Workerdefine void @f1(i64 %addr, i64 %index) { 8*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1: 9*9880d681SAndroid Build Coastguard Worker; CHECK: lb %r0, 0(%r3,%r2) 10*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 11*9880d681SAndroid Build Coastguard Worker %add = add i64 %addr, %index 12*9880d681SAndroid Build Coastguard Worker %ptr = inttoptr i64 %add to i8 * 13*9880d681SAndroid Build Coastguard Worker %a = load volatile i8 , i8 *%ptr 14*9880d681SAndroid Build Coastguard Worker ret void 15*9880d681SAndroid Build Coastguard Worker} 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Worker; An address with an index and a displacement (order 1). 18*9880d681SAndroid Build Coastguard Workerdefine void @f2(i64 %addr, i64 %index) { 19*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2: 20*9880d681SAndroid Build Coastguard Worker; CHECK: lb %r0, 100(%r3,%r2) 21*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 22*9880d681SAndroid Build Coastguard Worker %add1 = add i64 %addr, %index 23*9880d681SAndroid Build Coastguard Worker %add2 = add i64 %add1, 100 24*9880d681SAndroid Build Coastguard Worker %ptr = inttoptr i64 %add2 to i8 * 25*9880d681SAndroid Build Coastguard Worker %a = load volatile i8 , i8 *%ptr 26*9880d681SAndroid Build Coastguard Worker ret void 27*9880d681SAndroid Build Coastguard Worker} 28*9880d681SAndroid Build Coastguard Worker 29*9880d681SAndroid Build Coastguard Worker; An address with an index and a displacement (order 2). 30*9880d681SAndroid Build Coastguard Workerdefine void @f3(i64 %addr, i64 %index) { 31*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3: 32*9880d681SAndroid Build Coastguard Worker; CHECK: lb %r0, 100(%r3,%r2) 33*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 34*9880d681SAndroid Build Coastguard Worker %add1 = add i64 %addr, 100 35*9880d681SAndroid Build Coastguard Worker %add2 = add i64 %add1, %index 36*9880d681SAndroid Build Coastguard Worker %ptr = inttoptr i64 %add2 to i8 * 37*9880d681SAndroid Build Coastguard Worker %a = load volatile i8 , i8 *%ptr 38*9880d681SAndroid Build Coastguard Worker ret void 39*9880d681SAndroid Build Coastguard Worker} 40*9880d681SAndroid Build Coastguard Worker 41*9880d681SAndroid Build Coastguard Worker; An address with an index and a subtracted displacement (order 1). 42*9880d681SAndroid Build Coastguard Workerdefine void @f4(i64 %addr, i64 %index) { 43*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f4: 44*9880d681SAndroid Build Coastguard Worker; CHECK: lb %r0, -100(%r3,%r2) 45*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 46*9880d681SAndroid Build Coastguard Worker %add1 = add i64 %addr, %index 47*9880d681SAndroid Build Coastguard Worker %add2 = sub i64 %add1, 100 48*9880d681SAndroid Build Coastguard Worker %ptr = inttoptr i64 %add2 to i8 * 49*9880d681SAndroid Build Coastguard Worker %a = load volatile i8 , i8 *%ptr 50*9880d681SAndroid Build Coastguard Worker ret void 51*9880d681SAndroid Build Coastguard Worker} 52*9880d681SAndroid Build Coastguard Worker 53*9880d681SAndroid Build Coastguard Worker; An address with an index and a subtracted displacement (order 2). 54*9880d681SAndroid Build Coastguard Workerdefine void @f5(i64 %addr, i64 %index) { 55*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f5: 56*9880d681SAndroid Build Coastguard Worker; CHECK: lb %r0, -100(%r3,%r2) 57*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 58*9880d681SAndroid Build Coastguard Worker %add1 = sub i64 %addr, 100 59*9880d681SAndroid Build Coastguard Worker %add2 = add i64 %add1, %index 60*9880d681SAndroid Build Coastguard Worker %ptr = inttoptr i64 %add2 to i8 * 61*9880d681SAndroid Build Coastguard Worker %a = load volatile i8 , i8 *%ptr 62*9880d681SAndroid Build Coastguard Worker ret void 63*9880d681SAndroid Build Coastguard Worker} 64*9880d681SAndroid Build Coastguard Worker 65*9880d681SAndroid Build Coastguard Worker; An address with an index and a displacement added using OR. 66*9880d681SAndroid Build Coastguard Workerdefine void @f6(i64 %addr, i64 %index) { 67*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f6: 68*9880d681SAndroid Build Coastguard Worker; CHECK: nill %r2, 65528 69*9880d681SAndroid Build Coastguard Worker; CHECK: lb %r0, 6(%r3,%r2) 70*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 71*9880d681SAndroid Build Coastguard Worker %aligned = and i64 %addr, -8 72*9880d681SAndroid Build Coastguard Worker %or = or i64 %aligned, 6 73*9880d681SAndroid Build Coastguard Worker %add = add i64 %or, %index 74*9880d681SAndroid Build Coastguard Worker %ptr = inttoptr i64 %add to i8 * 75*9880d681SAndroid Build Coastguard Worker %a = load volatile i8 , i8 *%ptr 76*9880d681SAndroid Build Coastguard Worker ret void 77*9880d681SAndroid Build Coastguard Worker} 78*9880d681SAndroid Build Coastguard Worker 79*9880d681SAndroid Build Coastguard Worker; Like f6, but without the masking. This OR doesn't count as a displacement. 80*9880d681SAndroid Build Coastguard Workerdefine void @f7(i64 %addr, i64 %index) { 81*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f7: 82*9880d681SAndroid Build Coastguard Worker; CHECK: oill %r2, 6 83*9880d681SAndroid Build Coastguard Worker; CHECK: lb %r0, 0(%r3,%r2) 84*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 85*9880d681SAndroid Build Coastguard Worker %or = or i64 %addr, 6 86*9880d681SAndroid Build Coastguard Worker %add = add i64 %or, %index 87*9880d681SAndroid Build Coastguard Worker %ptr = inttoptr i64 %add to i8 * 88*9880d681SAndroid Build Coastguard Worker %a = load volatile i8 , i8 *%ptr 89*9880d681SAndroid Build Coastguard Worker ret void 90*9880d681SAndroid Build Coastguard Worker} 91*9880d681SAndroid Build Coastguard Worker 92*9880d681SAndroid Build Coastguard Worker; Like f6, but with the OR applied after the index. We don't know anything 93*9880d681SAndroid Build Coastguard Worker; about the alignment of %add here. 94*9880d681SAndroid Build Coastguard Workerdefine void @f8(i64 %addr, i64 %index) { 95*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f8: 96*9880d681SAndroid Build Coastguard Worker; CHECK: nill %r2, 65528 97*9880d681SAndroid Build Coastguard Worker; CHECK: agr %r2, %r3 98*9880d681SAndroid Build Coastguard Worker; CHECK: oill %r2, 6 99*9880d681SAndroid Build Coastguard Worker; CHECK: lb %r0, 0(%r2) 100*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 101*9880d681SAndroid Build Coastguard Worker %aligned = and i64 %addr, -8 102*9880d681SAndroid Build Coastguard Worker %add = add i64 %aligned, %index 103*9880d681SAndroid Build Coastguard Worker %or = or i64 %add, 6 104*9880d681SAndroid Build Coastguard Worker %ptr = inttoptr i64 %or to i8 * 105*9880d681SAndroid Build Coastguard Worker %a = load volatile i8 , i8 *%ptr 106*9880d681SAndroid Build Coastguard Worker ret void 107*9880d681SAndroid Build Coastguard Worker} 108