1 ; Test 64-bit equality comparisons in which the second operand is a constant. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 ; Check comparisons with 0. 6 define double @f1(double %a, double %b, i64 %i1) { 7 ; CHECK-LABEL: f1: 8 ; CHECK: cgije %r2, 0 9 ; CHECK: ldr %f0, %f2 10 ; CHECK: br %r14 11 %cond = icmp eq i64 %i1, 0 12 %res = select i1 %cond, double %a, double %b 13 ret double %res 14 } 15 16 ; Check the high end of the CGIJ range. 17 define double @f2(double %a, double %b, i64 %i1) { 18 ; CHECK-LABEL: f2: 19 ; CHECK: cgije %r2, 127 20 ; CHECK: ldr %f0, %f2 21 ; CHECK: br %r14 22 %cond = icmp eq i64 %i1, 127 23 %res = select i1 %cond, double %a, double %b 24 ret double %res 25 } 26 27 ; Check the next value up, which must use CGHI instead. 28 define double @f3(double %a, double %b, i64 %i1) { 29 ; CHECK-LABEL: f3: 30 ; CHECK: cghi %r2, 128 31 ; CHECK-NEXT: je 32 ; CHECK: ldr %f0, %f2 33 ; CHECK: br %r14 34 %cond = icmp eq i64 %i1, 128 35 %res = select i1 %cond, double %a, double %b 36 ret double %res 37 } 38 39 ; Check the high end of the CGHI range. 40 define double @f4(double %a, double %b, i64 %i1) { 41 ; CHECK-LABEL: f4: 42 ; CHECK: cghi %r2, 32767 43 ; CHECK-NEXT: je 44 ; CHECK: ldr %f0, %f2 45 ; CHECK: br %r14 46 %cond = icmp eq i64 %i1, 32767 47 %res = select i1 %cond, double %a, double %b 48 ret double %res 49 } 50 51 ; Check the next value up, which must use CGFI. 52 define double @f5(double %a, double %b, i64 %i1) { 53 ; CHECK-LABEL: f5: 54 ; CHECK: cgfi %r2, 32768 55 ; CHECK-NEXT: je 56 ; CHECK: ldr %f0, %f2 57 ; CHECK: br %r14 58 %cond = icmp eq i64 %i1, 32768 59 %res = select i1 %cond, double %a, double %b 60 ret double %res 61 } 62 63 ; Check the high end of the CGFI range. 64 define double @f6(double %a, double %b, i64 %i1) { 65 ; CHECK-LABEL: f6: 66 ; CHECK: cgfi %r2, 2147483647 67 ; CHECK-NEXT: je 68 ; CHECK: ldr %f0, %f2 69 ; CHECK: br %r14 70 %cond = icmp eq i64 %i1, 2147483647 71 %res = select i1 %cond, double %a, double %b 72 ret double %res 73 } 74 75 ; Check the next value up, which should use CLGFI instead. 76 define double @f7(double %a, double %b, i64 %i1) { 77 ; CHECK-LABEL: f7: 78 ; CHECK: clgfi %r2, 2147483648 79 ; CHECK-NEXT: je 80 ; CHECK: ldr %f0, %f2 81 ; CHECK: br %r14 82 %cond = icmp eq i64 %i1, 2147483648 83 %res = select i1 %cond, double %a, double %b 84 ret double %res 85 } 86 87 ; Check the high end of the CLGFI range. 88 define double @f8(double %a, double %b, i64 %i1) { 89 ; CHECK-LABEL: f8: 90 ; CHECK: clgfi %r2, 4294967295 91 ; CHECK-NEXT: je 92 ; CHECK: ldr %f0, %f2 93 ; CHECK: br %r14 94 %cond = icmp eq i64 %i1, 4294967295 95 %res = select i1 %cond, double %a, double %b 96 ret double %res 97 } 98 99 ; Check the next value up, which must use a register comparison. 100 define double @f9(double %a, double %b, i64 %i1) { 101 ; CHECK-LABEL: f9: 102 ; CHECK: cgrje %r2, 103 ; CHECK: ldr %f0, %f2 104 ; CHECK: br %r14 105 %cond = icmp eq i64 %i1, 4294967296 106 %res = select i1 %cond, double %a, double %b 107 ret double %res 108 } 109 110 ; Check the high end of the negative CGIJ range. 111 define double @f10(double %a, double %b, i64 %i1) { 112 ; CHECK-LABEL: f10: 113 ; CHECK: cgije %r2, -1 114 ; CHECK: ldr %f0, %f2 115 ; CHECK: br %r14 116 %cond = icmp eq i64 %i1, -1 117 %res = select i1 %cond, double %a, double %b 118 ret double %res 119 } 120 121 ; Check the low end of the CGIJ range. 122 define double @f11(double %a, double %b, i64 %i1) { 123 ; CHECK-LABEL: f11: 124 ; CHECK: cgije %r2, -128 125 ; CHECK: ldr %f0, %f2 126 ; CHECK: br %r14 127 %cond = icmp eq i64 %i1, -128 128 %res = select i1 %cond, double %a, double %b 129 ret double %res 130 } 131 132 ; Check the next value down, which must use CGHI instead. 133 define double @f12(double %a, double %b, i64 %i1) { 134 ; CHECK-LABEL: f12: 135 ; CHECK: cghi %r2, -129 136 ; CHECK-NEXT: je 137 ; CHECK: ldr %f0, %f2 138 ; CHECK: br %r14 139 %cond = icmp eq i64 %i1, -129 140 %res = select i1 %cond, double %a, double %b 141 ret double %res 142 } 143 144 ; Check the low end of the CGHI range. 145 define double @f13(double %a, double %b, i64 %i1) { 146 ; CHECK-LABEL: f13: 147 ; CHECK: cghi %r2, -32768 148 ; CHECK-NEXT: je 149 ; CHECK: ldr %f0, %f2 150 ; CHECK: br %r14 151 %cond = icmp eq i64 %i1, -32768 152 %res = select i1 %cond, double %a, double %b 153 ret double %res 154 } 155 156 ; Check the next value down, which must use CGFI instead. 157 define double @f14(double %a, double %b, i64 %i1) { 158 ; CHECK-LABEL: f14: 159 ; CHECK: cgfi %r2, -32769 160 ; CHECK-NEXT: je 161 ; CHECK: ldr %f0, %f2 162 ; CHECK: br %r14 163 %cond = icmp eq i64 %i1, -32769 164 %res = select i1 %cond, double %a, double %b 165 ret double %res 166 } 167 168 ; Check the low end of the CGFI range. 169 define double @f15(double %a, double %b, i64 %i1) { 170 ; CHECK-LABEL: f15: 171 ; CHECK: cgfi %r2, -2147483648 172 ; CHECK-NEXT: je 173 ; CHECK: ldr %f0, %f2 174 ; CHECK: br %r14 175 %cond = icmp eq i64 %i1, -2147483648 176 %res = select i1 %cond, double %a, double %b 177 ret double %res 178 } 179 180 ; Check the next value down, which must use register comparison. 181 define double @f16(double %a, double %b, i64 %i1) { 182 ; CHECK-LABEL: f16: 183 ; CHECK: cgrje 184 ; CHECK: ldr %f0, %f2 185 ; CHECK: br %r14 186 %cond = icmp eq i64 %i1, -2147483649 187 %res = select i1 %cond, double %a, double %b 188 ret double %res 189 } 190
