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1; Test 32-bit addition in which the second operand is variable.2;3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s4; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s5 6declare i32 @foo()7 8; Check AR.9define i32 @f1(i32 %a, i32 %b) {10; CHECK-LABEL: f1:11; CHECK: ar %r2, %r312; CHECK: br %r1413 %add = add i32 %a, %b14 ret i32 %add15}16 17; Check the low end of the A range.18define i32 @f2(i32 %a, ptr %src) {19; CHECK-LABEL: f2:20; CHECK: a %r2, 0(%r3)21; CHECK: br %r1422 %b = load i32, ptr %src23 %add = add i32 %a, %b24 ret i32 %add25}26 27; Check the high end of the aligned A range.28define i32 @f3(i32 %a, ptr %src) {29; CHECK-LABEL: f3:30; CHECK: a %r2, 4092(%r3)31; CHECK: br %r1432 %ptr = getelementptr i32, ptr %src, i64 102333 %b = load i32, ptr %ptr34 %add = add i32 %a, %b35 ret i32 %add36}37 38; Check the next word up, which should use AY instead of A.39define i32 @f4(i32 %a, ptr %src) {40; CHECK-LABEL: f4:41; CHECK: ay %r2, 4096(%r3)42; CHECK: br %r1443 %ptr = getelementptr i32, ptr %src, i64 102444 %b = load i32, ptr %ptr45 %add = add i32 %a, %b46 ret i32 %add47}48 49; Check the high end of the aligned AY range.50define i32 @f5(i32 %a, ptr %src) {51; CHECK-LABEL: f5:52; CHECK: ay %r2, 524284(%r3)53; CHECK: br %r1454 %ptr = getelementptr i32, ptr %src, i64 13107155 %b = load i32, ptr %ptr56 %add = add i32 %a, %b57 ret i32 %add58}59 60; Check the next word up, which needs separate address logic.61; Other sequences besides this one would be OK.62define i32 @f6(i32 %a, ptr %src) {63; CHECK-LABEL: f6:64; CHECK: agfi %r3, 52428865; CHECK: a %r2, 0(%r3)66; CHECK: br %r1467 %ptr = getelementptr i32, ptr %src, i64 13107268 %b = load i32, ptr %ptr69 %add = add i32 %a, %b70 ret i32 %add71}72 73; Check the high end of the negative aligned AY range.74define i32 @f7(i32 %a, ptr %src) {75; CHECK-LABEL: f7:76; CHECK: ay %r2, -4(%r3)77; CHECK: br %r1478 %ptr = getelementptr i32, ptr %src, i64 -179 %b = load i32, ptr %ptr80 %add = add i32 %a, %b81 ret i32 %add82}83 84; Check the low end of the AY range.85define i32 @f8(i32 %a, ptr %src) {86; CHECK-LABEL: f8:87; CHECK: ay %r2, -524288(%r3)88; CHECK: br %r1489 %ptr = getelementptr i32, ptr %src, i64 -13107290 %b = load i32, ptr %ptr91 %add = add i32 %a, %b92 ret i32 %add93}94 95; Check the next word down, which needs separate address logic.96; Other sequences besides this one would be OK.97define i32 @f9(i32 %a, ptr %src) {98; CHECK-LABEL: f9:99; CHECK: agfi %r3, -524292100; CHECK: a %r2, 0(%r3)101; CHECK: br %r14102 %ptr = getelementptr i32, ptr %src, i64 -131073103 %b = load i32, ptr %ptr104 %add = add i32 %a, %b105 ret i32 %add106}107 108; Check that A allows an index.109define i32 @f10(i32 %a, i64 %src, i64 %index) {110; CHECK-LABEL: f10:111; CHECK: a %r2, 4092({{%r4,%r3|%r3,%r4}})112; CHECK: br %r14113 %add1 = add i64 %src, %index114 %add2 = add i64 %add1, 4092115 %ptr = inttoptr i64 %add2 to ptr116 %b = load i32, ptr %ptr117 %add = add i32 %a, %b118 ret i32 %add119}120 121; Check that AY allows an index.122define i32 @f11(i32 %a, i64 %src, i64 %index) {123; CHECK-LABEL: f11:124; CHECK: ay %r2, 4096({{%r4,%r3|%r3,%r4}})125; CHECK: br %r14126 %add1 = add i64 %src, %index127 %add2 = add i64 %add1, 4096128 %ptr = inttoptr i64 %add2 to ptr129 %b = load i32, ptr %ptr130 %add = add i32 %a, %b131 ret i32 %add132}133 134; Check that additions of spilled values can use A rather than AR.135define i32 @f12(ptr %ptr0) {136; CHECK-LABEL: f12:137; CHECK: brasl %r14, foo@PLT138; CHECK: a %r2, 16{{[04]}}(%r15)139; CHECK: br %r14140 %ptr1 = getelementptr i32, ptr %ptr0, i64 2141 %ptr2 = getelementptr i32, ptr %ptr0, i64 4142 %ptr3 = getelementptr i32, ptr %ptr0, i64 6143 %ptr4 = getelementptr i32, ptr %ptr0, i64 8144 %ptr5 = getelementptr i32, ptr %ptr0, i64 10145 %ptr6 = getelementptr i32, ptr %ptr0, i64 12146 %ptr7 = getelementptr i32, ptr %ptr0, i64 14147 %ptr8 = getelementptr i32, ptr %ptr0, i64 16148 %ptr9 = getelementptr i32, ptr %ptr0, i64 18149 150 %val0 = load i32, ptr %ptr0151 %val1 = load i32, ptr %ptr1152 %val2 = load i32, ptr %ptr2153 %val3 = load i32, ptr %ptr3154 %val4 = load i32, ptr %ptr4155 %val5 = load i32, ptr %ptr5156 %val6 = load i32, ptr %ptr6157 %val7 = load i32, ptr %ptr7158 %val8 = load i32, ptr %ptr8159 %val9 = load i32, ptr %ptr9160 161 %ret = call i32 @foo()162 163 %add0 = add i32 %ret, %val0164 %add1 = add i32 %add0, %val1165 %add2 = add i32 %add1, %val2166 %add3 = add i32 %add2, %val3167 %add4 = add i32 %add3, %val4168 %add5 = add i32 %add4, %val5169 %add6 = add i32 %add5, %val6170 %add7 = add i32 %add6, %val7171 %add8 = add i32 %add7, %val8172 %add9 = add i32 %add8, %val9173 174 ret i32 %add9175}176