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1; Test extensions of f64 to f128.2;3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s4 5; Check register extension.6define void @f1(ptr %dst, double %val) {7; CHECK-LABEL: f1:8; CHECK: lxdbr %f0, %f09; CHECK: std %f0, 0(%r2)10; CHECK: std %f2, 8(%r2)11; CHECK: br %r1412 %res = fpext double %val to fp12813 store fp128 %res, ptr %dst14 ret void15}16 17; Check the low end of the LXDB range.18define void @f2(ptr %dst, ptr %ptr) {19; CHECK-LABEL: f2:20; CHECK: lxdb %f0, 0(%r3)21; CHECK: std %f0, 0(%r2)22; CHECK: std %f2, 8(%r2)23; CHECK: br %r1424 %val = load double, ptr %ptr25 %res = fpext double %val to fp12826 store fp128 %res, ptr %dst27 ret void28}29 30; Check the high end of the aligned LXDB range.31define void @f3(ptr %dst, ptr %base) {32; CHECK-LABEL: f3:33; CHECK: lxdb %f0, 4088(%r3)34; CHECK: std %f0, 0(%r2)35; CHECK: std %f2, 8(%r2)36; CHECK: br %r1437 %ptr = getelementptr double, ptr %base, i64 51138 %val = load double, ptr %ptr39 %res = fpext double %val to fp12840 store fp128 %res, ptr %dst41 ret void42}43 44; Check the next doubleword up, which needs separate address logic.45; Other sequences besides this one would be OK.46define void @f4(ptr %dst, ptr %base) {47; CHECK-LABEL: f4:48; CHECK: aghi %r3, 409649; CHECK: lxdb %f0, 0(%r3)50; CHECK: std %f0, 0(%r2)51; CHECK: std %f2, 8(%r2)52; CHECK: br %r1453 %ptr = getelementptr double, ptr %base, i64 51254 %val = load double, ptr %ptr55 %res = fpext double %val to fp12856 store fp128 %res, ptr %dst57 ret void58}59 60; Check negative displacements, which also need separate address logic.61define void @f5(ptr %dst, ptr %base) {62; CHECK-LABEL: f5:63; CHECK: aghi %r3, -864; CHECK: lxdb %f0, 0(%r3)65; CHECK: std %f0, 0(%r2)66; CHECK: std %f2, 8(%r2)67; CHECK: br %r1468 %ptr = getelementptr double, ptr %base, i64 -169 %val = load double, ptr %ptr70 %res = fpext double %val to fp12871 store fp128 %res, ptr %dst72 ret void73}74 75; Check that LXDB allows indices.76define void @f6(ptr %dst, ptr %base, i64 %index) {77; CHECK-LABEL: f6:78; CHECK: sllg %r1, %r4, 379; CHECK: lxdb %f0, 800(%r1,%r3)80; CHECK: std %f0, 0(%r2)81; CHECK: std %f2, 8(%r2)82; CHECK: br %r1483 %ptr1 = getelementptr double, ptr %base, i64 %index84 %ptr2 = getelementptr double, ptr %ptr1, i64 10085 %val = load double, ptr %ptr286 %res = fpext double %val to fp12887 store fp128 %res, ptr %dst88 ret void89}90 91; Test a case where we spill the source of at least one LXDBR. We want92; to use LXDB if possible.93define void @f7(ptr %ptr1, ptr %ptr2) {94; CHECK-LABEL: f7:95; CHECK: lxdb {{%f[0-9]+}}, 160(%r15)96; CHECK: br %r1497 %val0 = load volatile double, ptr %ptr298 %val1 = load volatile double, ptr %ptr299 %val2 = load volatile double, ptr %ptr2100 %val3 = load volatile double, ptr %ptr2101 %val4 = load volatile double, ptr %ptr2102 %val5 = load volatile double, ptr %ptr2103 %val6 = load volatile double, ptr %ptr2104 %val7 = load volatile double, ptr %ptr2105 %val8 = load volatile double, ptr %ptr2106 %val9 = load volatile double, ptr %ptr2107 %val10 = load volatile double, ptr %ptr2108 %val11 = load volatile double, ptr %ptr2109 %val12 = load volatile double, ptr %ptr2110 %val13 = load volatile double, ptr %ptr2111 %val14 = load volatile double, ptr %ptr2112 %val15 = load volatile double, ptr %ptr2113 %val16 = load volatile double, ptr %ptr2114 115 %ext0 = fpext double %val0 to fp128116 %ext1 = fpext double %val1 to fp128117 %ext2 = fpext double %val2 to fp128118 %ext3 = fpext double %val3 to fp128119 %ext4 = fpext double %val4 to fp128120 %ext5 = fpext double %val5 to fp128121 %ext6 = fpext double %val6 to fp128122 %ext7 = fpext double %val7 to fp128123 %ext8 = fpext double %val8 to fp128124 %ext9 = fpext double %val9 to fp128125 %ext10 = fpext double %val10 to fp128126 %ext11 = fpext double %val11 to fp128127 %ext12 = fpext double %val12 to fp128128 %ext13 = fpext double %val13 to fp128129 %ext14 = fpext double %val14 to fp128130 %ext15 = fpext double %val15 to fp128131 %ext16 = fpext double %val16 to fp128132 133 store volatile double %val0, ptr %ptr2134 store volatile double %val1, ptr %ptr2135 store volatile double %val2, ptr %ptr2136 store volatile double %val3, ptr %ptr2137 store volatile double %val4, ptr %ptr2138 store volatile double %val5, ptr %ptr2139 store volatile double %val6, ptr %ptr2140 store volatile double %val7, ptr %ptr2141 store volatile double %val8, ptr %ptr2142 store volatile double %val9, ptr %ptr2143 store volatile double %val10, ptr %ptr2144 store volatile double %val11, ptr %ptr2145 store volatile double %val12, ptr %ptr2146 store volatile double %val13, ptr %ptr2147 store volatile double %val14, ptr %ptr2148 store volatile double %val15, ptr %ptr2149 store volatile double %val16, ptr %ptr2150 151 store volatile fp128 %ext0, ptr %ptr1152 store volatile fp128 %ext1, ptr %ptr1153 store volatile fp128 %ext2, ptr %ptr1154 store volatile fp128 %ext3, ptr %ptr1155 store volatile fp128 %ext4, ptr %ptr1156 store volatile fp128 %ext5, ptr %ptr1157 store volatile fp128 %ext6, ptr %ptr1158 store volatile fp128 %ext7, ptr %ptr1159 store volatile fp128 %ext8, ptr %ptr1160 store volatile fp128 %ext9, ptr %ptr1161 store volatile fp128 %ext10, ptr %ptr1162 store volatile fp128 %ext11, ptr %ptr1163 store volatile fp128 %ext12, ptr %ptr1164 store volatile fp128 %ext13, ptr %ptr1165 store volatile fp128 %ext14, ptr %ptr1166 store volatile fp128 %ext15, ptr %ptr1167 store volatile fp128 %ext16, ptr %ptr1168 169 ret void170}171