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1; Test multiplication of two f32s, producing an f64 result.2;3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s4 5declare float @foo()6 7; Check register multiplication.8define double @f1(float %f1, float %f2) {9; CHECK-LABEL: f1:10; CHECK: mdebr %f0, %f211; CHECK: br %r1412 %f1x = fpext float %f1 to double13 %f2x = fpext float %f2 to double14 %res = fmul double %f1x, %f2x15 ret double %res16}17 18; Check the low end of the MDEB range.19define double @f2(float %f1, ptr %ptr) {20; CHECK-LABEL: f2:21; CHECK: mdeb %f0, 0(%r2)22; CHECK: br %r1423 %f2 = load float, ptr %ptr24 %f1x = fpext float %f1 to double25 %f2x = fpext float %f2 to double26 %res = fmul double %f1x, %f2x27 ret double %res28}29 30; Check the high end of the aligned MDEB range.31define double @f3(float %f1, ptr %base) {32; CHECK-LABEL: f3:33; CHECK: mdeb %f0, 4092(%r2)34; CHECK: br %r1435 %ptr = getelementptr float, ptr %base, i64 102336 %f2 = load float, ptr %ptr37 %f1x = fpext float %f1 to double38 %f2x = fpext float %f2 to double39 %res = fmul double %f1x, %f2x40 ret double %res41}42 43; Check the next word up, which needs separate address logic.44; Other sequences besides this one would be OK.45define double @f4(float %f1, ptr %base) {46; CHECK-LABEL: f4:47; CHECK: aghi %r2, 409648; CHECK: mdeb %f0, 0(%r2)49; CHECK: br %r1450 %ptr = getelementptr float, ptr %base, i64 102451 %f2 = load float, ptr %ptr52 %f1x = fpext float %f1 to double53 %f2x = fpext float %f2 to double54 %res = fmul double %f1x, %f2x55 ret double %res56}57 58; Check negative displacements, which also need separate address logic.59define double @f5(float %f1, ptr %base) {60; CHECK-LABEL: f5:61; CHECK: aghi %r2, -462; CHECK: mdeb %f0, 0(%r2)63; CHECK: br %r1464 %ptr = getelementptr float, ptr %base, i64 -165 %f2 = load float, ptr %ptr66 %f1x = fpext float %f1 to double67 %f2x = fpext float %f2 to double68 %res = fmul double %f1x, %f2x69 ret double %res70}71 72; Check that MDEB allows indices.73define double @f6(float %f1, ptr %base, i64 %index) {74; CHECK-LABEL: f6:75; CHECK: sllg %r1, %r3, 276; CHECK: mdeb %f0, 400(%r1,%r2)77; CHECK: br %r1478 %ptr1 = getelementptr float, ptr %base, i64 %index79 %ptr2 = getelementptr float, ptr %ptr1, i64 10080 %f2 = load float, ptr %ptr281 %f1x = fpext float %f1 to double82 %f2x = fpext float %f2 to double83 %res = fmul double %f1x, %f2x84 ret double %res85}86 87; Check that multiplications of spilled values can use MDEB rather than MDEBR.88define float @f7(ptr %ptr0) {89; CHECK-LABEL: f7:90; CHECK: brasl %r14, foo@PLT91; CHECK: mdeb %f0, 16{{[04]}}(%r15)92; CHECK: br %r1493 %ptr1 = getelementptr float, ptr %ptr0, i64 294 %ptr2 = getelementptr float, ptr %ptr0, i64 495 %ptr3 = getelementptr float, ptr %ptr0, i64 696 %ptr4 = getelementptr float, ptr %ptr0, i64 897 %ptr5 = getelementptr float, ptr %ptr0, i64 1098 %ptr6 = getelementptr float, ptr %ptr0, i64 1299 %ptr7 = getelementptr float, ptr %ptr0, i64 14100 %ptr8 = getelementptr float, ptr %ptr0, i64 16101 %ptr9 = getelementptr float, ptr %ptr0, i64 18102 %ptr10 = getelementptr float, ptr %ptr0, i64 20103 104 %val0 = load float, ptr %ptr0105 %val1 = load float, ptr %ptr1106 %val2 = load float, ptr %ptr2107 %val3 = load float, ptr %ptr3108 %val4 = load float, ptr %ptr4109 %val5 = load float, ptr %ptr5110 %val6 = load float, ptr %ptr6111 %val7 = load float, ptr %ptr7112 %val8 = load float, ptr %ptr8113 %val9 = load float, ptr %ptr9114 %val10 = load float, ptr %ptr10115 116 %frob0 = fadd float %val0, %val0117 %frob1 = fadd float %val1, %val1118 %frob2 = fadd float %val2, %val2119 %frob3 = fadd float %val3, %val3120 %frob4 = fadd float %val4, %val4121 %frob5 = fadd float %val5, %val5122 %frob6 = fadd float %val6, %val6123 %frob7 = fadd float %val7, %val7124 %frob8 = fadd float %val8, %val8125 %frob9 = fadd float %val9, %val9126 %frob10 = fadd float %val9, %val10127 128 store float %frob0, ptr %ptr0129 store float %frob1, ptr %ptr1130 store float %frob2, ptr %ptr2131 store float %frob3, ptr %ptr3132 store float %frob4, ptr %ptr4133 store float %frob5, ptr %ptr5134 store float %frob6, ptr %ptr6135 store float %frob7, ptr %ptr7136 store float %frob8, ptr %ptr8137 store float %frob9, ptr %ptr9138 store float %frob10, ptr %ptr10139 140 %ret = call float @foo()141 142 %accext0 = fpext float %ret to double143 %ext0 = fpext float %frob0 to double144 %mul0 = fmul double %accext0, %ext0145 %extra0 = fmul double %mul0, 1.01146 %trunc0 = fptrunc double %extra0 to float147 148 %accext1 = fpext float %trunc0 to double149 %ext1 = fpext float %frob1 to double150 %mul1 = fmul double %accext1, %ext1151 %extra1 = fmul double %mul1, 1.11152 %trunc1 = fptrunc double %extra1 to float153 154 %accext2 = fpext float %trunc1 to double155 %ext2 = fpext float %frob2 to double156 %mul2 = fmul double %accext2, %ext2157 %extra2 = fmul double %mul2, 1.21158 %trunc2 = fptrunc double %extra2 to float159 160 %accext3 = fpext float %trunc2 to double161 %ext3 = fpext float %frob3 to double162 %mul3 = fmul double %accext3, %ext3163 %extra3 = fmul double %mul3, 1.31164 %trunc3 = fptrunc double %extra3 to float165 166 %accext4 = fpext float %trunc3 to double167 %ext4 = fpext float %frob4 to double168 %mul4 = fmul double %accext4, %ext4169 %extra4 = fmul double %mul4, 1.41170 %trunc4 = fptrunc double %extra4 to float171 172 %accext5 = fpext float %trunc4 to double173 %ext5 = fpext float %frob5 to double174 %mul5 = fmul double %accext5, %ext5175 %extra5 = fmul double %mul5, 1.51176 %trunc5 = fptrunc double %extra5 to float177 178 %accext6 = fpext float %trunc5 to double179 %ext6 = fpext float %frob6 to double180 %mul6 = fmul double %accext6, %ext6181 %extra6 = fmul double %mul6, 1.61182 %trunc6 = fptrunc double %extra6 to float183 184 %accext7 = fpext float %trunc6 to double185 %ext7 = fpext float %frob7 to double186 %mul7 = fmul double %accext7, %ext7187 %extra7 = fmul double %mul7, 1.71188 %trunc7 = fptrunc double %extra7 to float189 190 %accext8 = fpext float %trunc7 to double191 %ext8 = fpext float %frob8 to double192 %mul8 = fmul double %accext8, %ext8193 %extra8 = fmul double %mul8, 1.81194 %trunc8 = fptrunc double %extra8 to float195 196 %accext9 = fpext float %trunc8 to double197 %ext9 = fpext float %frob9 to double198 %mul9 = fmul double %accext9, %ext9199 %extra9 = fmul double %mul9, 1.91200 %trunc9 = fptrunc double %extra9 to float201 202 ret float %trunc9203}204