1; Test multiplication of two f32s, producing an f64 result. 2; 3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5declare float @foo() 6 7; Check register multiplication. 8define double @f1(float %f1, float %f2) { 9; CHECK-LABEL: f1: 10; CHECK: mdebr %f0, %f2 11; CHECK: br %r14 12 %f1x = fpext float %f1 to double 13 %f2x = fpext float %f2 to double 14 %res = fmul double %f1x, %f2x 15 ret double %res 16} 17 18; Check the low end of the MDEB range. 19define double @f2(float %f1, float *%ptr) { 20; CHECK-LABEL: f2: 21; CHECK: mdeb %f0, 0(%r2) 22; CHECK: br %r14 23 %f2 = load float, float *%ptr 24 %f1x = fpext float %f1 to double 25 %f2x = fpext float %f2 to double 26 %res = fmul double %f1x, %f2x 27 ret double %res 28} 29 30; Check the high end of the aligned MDEB range. 31define double @f3(float %f1, float *%base) { 32; CHECK-LABEL: f3: 33; CHECK: mdeb %f0, 4092(%r2) 34; CHECK: br %r14 35 %ptr = getelementptr float, float *%base, i64 1023 36 %f2 = load float, float *%ptr 37 %f1x = fpext float %f1 to double 38 %f2x = fpext float %f2 to double 39 %res = fmul double %f1x, %f2x 40 ret double %res 41} 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, float *%base) { 46; CHECK-LABEL: f4: 47; CHECK: aghi %r2, 4096 48; CHECK: mdeb %f0, 0(%r2) 49; CHECK: br %r14 50 %ptr = getelementptr float, float *%base, i64 1024 51 %f2 = load float, float *%ptr 52 %f1x = fpext float %f1 to double 53 %f2x = fpext float %f2 to double 54 %res = fmul double %f1x, %f2x 55 ret double %res 56} 57 58; Check negative displacements, which also need separate address logic. 59define double @f5(float %f1, float *%base) { 60; CHECK-LABEL: f5: 61; CHECK: aghi %r2, -4 62; CHECK: mdeb %f0, 0(%r2) 63; CHECK: br %r14 64 %ptr = getelementptr float, float *%base, i64 -1 65 %f2 = load float, float *%ptr 66 %f1x = fpext float %f1 to double 67 %f2x = fpext float %f2 to double 68 %res = fmul double %f1x, %f2x 69 ret double %res 70} 71 72; Check that MDEB allows indices. 73define double @f6(float %f1, float *%base, i64 %index) { 74; CHECK-LABEL: f6: 75; CHECK: sllg %r1, %r3, 2 76; CHECK: mdeb %f0, 400(%r1,%r2) 77; CHECK: br %r14 78 %ptr1 = getelementptr float, float *%base, i64 %index 79 %ptr2 = getelementptr float, float *%ptr1, i64 100 80 %f2 = load float, float *%ptr2 81 %f1x = fpext float %f1 to double 82 %f2x = fpext float %f2 to double 83 %res = fmul double %f1x, %f2x 84 ret double %res 85} 86 87; Check that multiplications of spilled values can use MDEB rather than MDEBR. 88define float @f7(float *%ptr0) { 89; CHECK-LABEL: f7: 90; CHECK: brasl %r14, foo@PLT 91; CHECK: mdeb %f0, 16{{[04]}}(%r15) 92; CHECK: br %r14 93 %ptr1 = getelementptr float, float *%ptr0, i64 2 94 %ptr2 = getelementptr float, float *%ptr0, i64 4 95 %ptr3 = getelementptr float, float *%ptr0, i64 6 96 %ptr4 = getelementptr float, float *%ptr0, i64 8 97 %ptr5 = getelementptr float, float *%ptr0, i64 10 98 %ptr6 = getelementptr float, float *%ptr0, i64 12 99 %ptr7 = getelementptr float, float *%ptr0, i64 14 100 %ptr8 = getelementptr float, float *%ptr0, i64 16 101 %ptr9 = getelementptr float, float *%ptr0, i64 18 102 %ptr10 = getelementptr float, float *%ptr0, i64 20 103 104 %val0 = load float, float *%ptr0 105 %val1 = load float, float *%ptr1 106 %val2 = load float, float *%ptr2 107 %val3 = load float, float *%ptr3 108 %val4 = load float, float *%ptr4 109 %val5 = load float, float *%ptr5 110 %val6 = load float, float *%ptr6 111 %val7 = load float, float *%ptr7 112 %val8 = load float, float *%ptr8 113 %val9 = load float, float *%ptr9 114 %val10 = load float, float *%ptr10 115 116 %frob0 = fadd float %val0, %val0 117 %frob1 = fadd float %val1, %val1 118 %frob2 = fadd float %val2, %val2 119 %frob3 = fadd float %val3, %val3 120 %frob4 = fadd float %val4, %val4 121 %frob5 = fadd float %val5, %val5 122 %frob6 = fadd float %val6, %val6 123 %frob7 = fadd float %val7, %val7 124 %frob8 = fadd float %val8, %val8 125 %frob9 = fadd float %val9, %val9 126 %frob10 = fadd float %val9, %val10 127 128 store float %frob0, float *%ptr0 129 store float %frob1, float *%ptr1 130 store float %frob2, float *%ptr2 131 store float %frob3, float *%ptr3 132 store float %frob4, float *%ptr4 133 store float %frob5, float *%ptr5 134 store float %frob6, float *%ptr6 135 store float %frob7, float *%ptr7 136 store float %frob8, float *%ptr8 137 store float %frob9, float *%ptr9 138 store float %frob10, float *%ptr10 139 140 %ret = call float @foo() 141 142 %accext0 = fpext float %ret to double 143 %ext0 = fpext float %frob0 to double 144 %mul0 = fmul double %accext0, %ext0 145 %extra0 = fmul double %mul0, 1.01 146 %trunc0 = fptrunc double %extra0 to float 147 148 %accext1 = fpext float %trunc0 to double 149 %ext1 = fpext float %frob1 to double 150 %mul1 = fmul double %accext1, %ext1 151 %extra1 = fmul double %mul1, 1.11 152 %trunc1 = fptrunc double %extra1 to float 153 154 %accext2 = fpext float %trunc1 to double 155 %ext2 = fpext float %frob2 to double 156 %mul2 = fmul double %accext2, %ext2 157 %extra2 = fmul double %mul2, 1.21 158 %trunc2 = fptrunc double %extra2 to float 159 160 %accext3 = fpext float %trunc2 to double 161 %ext3 = fpext float %frob3 to double 162 %mul3 = fmul double %accext3, %ext3 163 %extra3 = fmul double %mul3, 1.31 164 %trunc3 = fptrunc double %extra3 to float 165 166 %accext4 = fpext float %trunc3 to double 167 %ext4 = fpext float %frob4 to double 168 %mul4 = fmul double %accext4, %ext4 169 %extra4 = fmul double %mul4, 1.41 170 %trunc4 = fptrunc double %extra4 to float 171 172 %accext5 = fpext float %trunc4 to double 173 %ext5 = fpext float %frob5 to double 174 %mul5 = fmul double %accext5, %ext5 175 %extra5 = fmul double %mul5, 1.51 176 %trunc5 = fptrunc double %extra5 to float 177 178 %accext6 = fpext float %trunc5 to double 179 %ext6 = fpext float %frob6 to double 180 %mul6 = fmul double %accext6, %ext6 181 %extra6 = fmul double %mul6, 1.61 182 %trunc6 = fptrunc double %extra6 to float 183 184 %accext7 = fpext float %trunc6 to double 185 %ext7 = fpext float %frob7 to double 186 %mul7 = fmul double %accext7, %ext7 187 %extra7 = fmul double %mul7, 1.71 188 %trunc7 = fptrunc double %extra7 to float 189 190 %accext8 = fpext float %trunc7 to double 191 %ext8 = fpext float %frob8 to double 192 %mul8 = fmul double %accext8, %ext8 193 %extra8 = fmul double %mul8, 1.81 194 %trunc8 = fptrunc double %extra8 to float 195 196 %accext9 = fpext float %trunc8 to double 197 %ext9 = fpext float %frob9 to double 198 %mul9 = fmul double %accext9, %ext9 199 %extra9 = fmul double %mul9, 1.91 200 %trunc9 = fptrunc double %extra9 to float 201 202 ret float %trunc9 203} 204