1 ; Test extensions of f64 to f128. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 ; Check register extension. 6 define void @f1(fp128 *%dst, double %val) { 7 ; CHECK-LABEL: f1: 8 ; CHECK: lxdbr %f0, %f0 9 ; CHECK: std %f0, 0(%r2) 10 ; CHECK: std %f2, 8(%r2) 11 ; CHECK: br %r14 12 %res = fpext double %val to fp128 13 store fp128 %res, fp128 *%dst 14 ret void 15 } 16 17 ; Check the low end of the LXDB range. 18 define void @f2(fp128 *%dst, double *%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 %r14 24 %val = load double , double *%ptr 25 %res = fpext double %val to fp128 26 store fp128 %res, fp128 *%dst 27 ret void 28 } 29 30 ; Check the high end of the aligned LXDB range. 31 define void @f3(fp128 *%dst, double *%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 %r14 37 %ptr = getelementptr double, double *%base, i64 511 38 %val = load double , double *%ptr 39 %res = fpext double %val to fp128 40 store fp128 %res, fp128 *%dst 41 ret void 42 } 43 44 ; Check the next doubleword up, which needs separate address logic. 45 ; Other sequences besides this one would be OK. 46 define void @f4(fp128 *%dst, double *%base) { 47 ; CHECK-LABEL: f4: 48 ; CHECK: aghi %r3, 4096 49 ; CHECK: lxdb %f0, 0(%r3) 50 ; CHECK: std %f0, 0(%r2) 51 ; CHECK: std %f2, 8(%r2) 52 ; CHECK: br %r14 53 %ptr = getelementptr double, double *%base, i64 512 54 %val = load double , double *%ptr 55 %res = fpext double %val to fp128 56 store fp128 %res, fp128 *%dst 57 ret void 58 } 59 60 ; Check negative displacements, which also need separate address logic. 61 define void @f5(fp128 *%dst, double *%base) { 62 ; CHECK-LABEL: f5: 63 ; CHECK: aghi %r3, -8 64 ; CHECK: lxdb %f0, 0(%r3) 65 ; CHECK: std %f0, 0(%r2) 66 ; CHECK: std %f2, 8(%r2) 67 ; CHECK: br %r14 68 %ptr = getelementptr double, double *%base, i64 -1 69 %val = load double , double *%ptr 70 %res = fpext double %val to fp128 71 store fp128 %res, fp128 *%dst 72 ret void 73 } 74 75 ; Check that LXDB allows indices. 76 define void @f6(fp128 *%dst, double *%base, i64 %index) { 77 ; CHECK-LABEL: f6: 78 ; CHECK: sllg %r1, %r4, 3 79 ; CHECK: lxdb %f0, 800(%r1,%r3) 80 ; CHECK: std %f0, 0(%r2) 81 ; CHECK: std %f2, 8(%r2) 82 ; CHECK: br %r14 83 %ptr1 = getelementptr double, double *%base, i64 %index 84 %ptr2 = getelementptr double, double *%ptr1, i64 100 85 %val = load double , double *%ptr2 86 %res = fpext double %val to fp128 87 store fp128 %res, fp128 *%dst 88 ret void 89 } 90 91 ; Test a case where we spill the source of at least one LXDBR. We want 92 ; to use LXDB if possible. 93 define void @f7(fp128 *%ptr1, double *%ptr2) { 94 ; CHECK-LABEL: f7: 95 ; CHECK: lxdb {{%f[0-9]+}}, 160(%r15) 96 ; CHECK: br %r14 97 %val0 = load volatile double , double *%ptr2 98 %val1 = load volatile double , double *%ptr2 99 %val2 = load volatile double , double *%ptr2 100 %val3 = load volatile double , double *%ptr2 101 %val4 = load volatile double , double *%ptr2 102 %val5 = load volatile double , double *%ptr2 103 %val6 = load volatile double , double *%ptr2 104 %val7 = load volatile double , double *%ptr2 105 %val8 = load volatile double , double *%ptr2 106 %val9 = load volatile double , double *%ptr2 107 %val10 = load volatile double , double *%ptr2 108 %val11 = load volatile double , double *%ptr2 109 %val12 = load volatile double , double *%ptr2 110 %val13 = load volatile double , double *%ptr2 111 %val14 = load volatile double , double *%ptr2 112 %val15 = load volatile double , double *%ptr2 113 %val16 = load volatile double , double *%ptr2 114 115 %ext0 = fpext double %val0 to fp128 116 %ext1 = fpext double %val1 to fp128 117 %ext2 = fpext double %val2 to fp128 118 %ext3 = fpext double %val3 to fp128 119 %ext4 = fpext double %val4 to fp128 120 %ext5 = fpext double %val5 to fp128 121 %ext6 = fpext double %val6 to fp128 122 %ext7 = fpext double %val7 to fp128 123 %ext8 = fpext double %val8 to fp128 124 %ext9 = fpext double %val9 to fp128 125 %ext10 = fpext double %val10 to fp128 126 %ext11 = fpext double %val11 to fp128 127 %ext12 = fpext double %val12 to fp128 128 %ext13 = fpext double %val13 to fp128 129 %ext14 = fpext double %val14 to fp128 130 %ext15 = fpext double %val15 to fp128 131 %ext16 = fpext double %val16 to fp128 132 133 store volatile double %val0, double *%ptr2 134 store volatile double %val1, double *%ptr2 135 store volatile double %val2, double *%ptr2 136 store volatile double %val3, double *%ptr2 137 store volatile double %val4, double *%ptr2 138 store volatile double %val5, double *%ptr2 139 store volatile double %val6, double *%ptr2 140 store volatile double %val7, double *%ptr2 141 store volatile double %val8, double *%ptr2 142 store volatile double %val9, double *%ptr2 143 store volatile double %val10, double *%ptr2 144 store volatile double %val11, double *%ptr2 145 store volatile double %val12, double *%ptr2 146 store volatile double %val13, double *%ptr2 147 store volatile double %val14, double *%ptr2 148 store volatile double %val15, double *%ptr2 149 store volatile double %val16, double *%ptr2 150 151 store volatile fp128 %ext0, fp128 *%ptr1 152 store volatile fp128 %ext1, fp128 *%ptr1 153 store volatile fp128 %ext2, fp128 *%ptr1 154 store volatile fp128 %ext3, fp128 *%ptr1 155 store volatile fp128 %ext4, fp128 *%ptr1 156 store volatile fp128 %ext5, fp128 *%ptr1 157 store volatile fp128 %ext6, fp128 *%ptr1 158 store volatile fp128 %ext7, fp128 *%ptr1 159 store volatile fp128 %ext8, fp128 *%ptr1 160 store volatile fp128 %ext9, fp128 *%ptr1 161 store volatile fp128 %ext10, fp128 *%ptr1 162 store volatile fp128 %ext11, fp128 *%ptr1 163 store volatile fp128 %ext12, fp128 *%ptr1 164 store volatile fp128 %ext13, fp128 *%ptr1 165 store volatile fp128 %ext14, fp128 *%ptr1 166 store volatile fp128 %ext15, fp128 *%ptr1 167 store volatile fp128 %ext16, fp128 *%ptr1 168 169 ret void 170 } 171
