141 lines · plain
1; Test 64-bit XORs 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 i64 @foo()7 8; Check XGR.9define i64 @f1(i64 %a, i64 %b) {10; CHECK-LABEL: f1:11; CHECK: xgr %r2, %r312; CHECK: br %r1413 %xor = xor i64 %a, %b14 ret i64 %xor15}16 17; Check XG with no displacement.18define i64 @f2(i64 %a, ptr %src) {19; CHECK-LABEL: f2:20; CHECK: xg %r2, 0(%r3)21; CHECK: br %r1422 %b = load i64, ptr %src23 %xor = xor i64 %a, %b24 ret i64 %xor25}26 27; Check the high end of the aligned XG range.28define i64 @f3(i64 %a, ptr %src) {29; CHECK-LABEL: f3:30; CHECK: xg %r2, 524280(%r3)31; CHECK: br %r1432 %ptr = getelementptr i64, ptr %src, i64 6553533 %b = load i64, ptr %ptr34 %xor = xor i64 %a, %b35 ret i64 %xor36}37 38; Check the next doubleword up, which needs separate address logic.39; Other sequences besides this one would be OK.40define i64 @f4(i64 %a, ptr %src) {41; CHECK-LABEL: f4:42; CHECK: agfi %r3, 52428843; CHECK: xg %r2, 0(%r3)44; CHECK: br %r1445 %ptr = getelementptr i64, ptr %src, i64 6553646 %b = load i64, ptr %ptr47 %xor = xor i64 %a, %b48 ret i64 %xor49}50 51; Check the high end of the negative aligned XG range.52define i64 @f5(i64 %a, ptr %src) {53; CHECK-LABEL: f5:54; CHECK: xg %r2, -8(%r3)55; CHECK: br %r1456 %ptr = getelementptr i64, ptr %src, i64 -157 %b = load i64, ptr %ptr58 %xor = xor i64 %a, %b59 ret i64 %xor60}61 62; Check the low end of the XG range.63define i64 @f6(i64 %a, ptr %src) {64; CHECK-LABEL: f6:65; CHECK: xg %r2, -524288(%r3)66; CHECK: br %r1467 %ptr = getelementptr i64, ptr %src, i64 -6553668 %b = load i64, ptr %ptr69 %xor = xor i64 %a, %b70 ret i64 %xor71}72 73; Check the next doubleword down, which needs separate address logic.74; Other sequences besides this one would be OK.75define i64 @f7(i64 %a, ptr %src) {76; CHECK-LABEL: f7:77; CHECK: agfi %r3, -52429678; CHECK: xg %r2, 0(%r3)79; CHECK: br %r1480 %ptr = getelementptr i64, ptr %src, i64 -6553781 %b = load i64, ptr %ptr82 %xor = xor i64 %a, %b83 ret i64 %xor84}85 86; Check that XG allows an index.87define i64 @f8(i64 %a, i64 %src, i64 %index) {88; CHECK-LABEL: f8:89; CHECK: xg %r2, 524280({{%r4,%r3|%r3,%r4}})90; CHECK: br %r1491 %add1 = add i64 %src, %index92 %add2 = add i64 %add1, 52428093 %ptr = inttoptr i64 %add2 to ptr94 %b = load i64, ptr %ptr95 %xor = xor i64 %a, %b96 ret i64 %xor97}98 99; Check that XORs of spilled values can use OG rather than OGR.100define i64 @f9(ptr %ptr0) {101; CHECK-LABEL: f9:102; CHECK: brasl %r14, foo@PLT103; CHECK: xg %r2, 160(%r15)104; CHECK: br %r14105 %ptr1 = getelementptr i64, ptr %ptr0, i64 2106 %ptr2 = getelementptr i64, ptr %ptr0, i64 4107 %ptr3 = getelementptr i64, ptr %ptr0, i64 6108 %ptr4 = getelementptr i64, ptr %ptr0, i64 8109 %ptr5 = getelementptr i64, ptr %ptr0, i64 10110 %ptr6 = getelementptr i64, ptr %ptr0, i64 12111 %ptr7 = getelementptr i64, ptr %ptr0, i64 14112 %ptr8 = getelementptr i64, ptr %ptr0, i64 16113 %ptr9 = getelementptr i64, ptr %ptr0, i64 18114 115 %val0 = load i64, ptr %ptr0116 %val1 = load i64, ptr %ptr1117 %val2 = load i64, ptr %ptr2118 %val3 = load i64, ptr %ptr3119 %val4 = load i64, ptr %ptr4120 %val5 = load i64, ptr %ptr5121 %val6 = load i64, ptr %ptr6122 %val7 = load i64, ptr %ptr7123 %val8 = load i64, ptr %ptr8124 %val9 = load i64, ptr %ptr9125 126 %ret = call i64 @foo()127 128 %xor0 = xor i64 %ret, %val0129 %xor1 = xor i64 %xor0, %val1130 %xor2 = xor i64 %xor1, %val2131 %xor3 = xor i64 %xor2, %val3132 %xor4 = xor i64 %xor3, %val4133 %xor5 = xor i64 %xor4, %val5134 %xor6 = xor i64 %xor5, %val6135 %xor7 = xor i64 %xor6, %val7136 %xor8 = xor i64 %xor7, %val8137 %xor9 = xor i64 %xor8, %val9138 139 ret i64 %xor9140}141