1 ; Test 32-bit unsigned comparison in which the second operand is a variable. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 ; Check register comparison. 6 define double @f1(double %a, double %b, i32 %i1, i32 %i2) { 7 ; CHECK-LABEL: f1: 8 ; CHECK: clr %r2, %r3 9 ; CHECK-NEXT: jl 10 ; CHECK: ldr %f0, %f2 11 ; CHECK: br %r14 12 %cond = icmp ult i32 %i1, %i2 13 %res = select i1 %cond, double %a, double %b 14 ret double %res 15 } 16 17 ; Check the low end of the CL range. 18 define double @f2(double %a, double %b, i32 %i1, i32 *%ptr) { 19 ; CHECK-LABEL: f2: 20 ; CHECK: cl %r2, 0(%r3) 21 ; CHECK-NEXT: jl 22 ; CHECK: ldr %f0, %f2 23 ; CHECK: br %r14 24 %i2 = load i32 *%ptr 25 %cond = icmp ult i32 %i1, %i2 26 %res = select i1 %cond, double %a, double %b 27 ret double %res 28 } 29 30 ; Check the high end of the aligned CL range. 31 define double @f3(double %a, double %b, i32 %i1, i32 *%base) { 32 ; CHECK-LABEL: f3: 33 ; CHECK: cl %r2, 4092(%r3) 34 ; CHECK-NEXT: jl 35 ; CHECK: ldr %f0, %f2 36 ; CHECK: br %r14 37 %ptr = getelementptr i32 *%base, i64 1023 38 %i2 = load i32 *%ptr 39 %cond = icmp ult i32 %i1, %i2 40 %res = select i1 %cond, double %a, double %b 41 ret double %res 42 } 43 44 ; Check the next word up, which should use CLY instead of CL. 45 define double @f4(double %a, double %b, i32 %i1, i32 *%base) { 46 ; CHECK-LABEL: f4: 47 ; CHECK: cly %r2, 4096(%r3) 48 ; CHECK-NEXT: jl 49 ; CHECK: ldr %f0, %f2 50 ; CHECK: br %r14 51 %ptr = getelementptr i32 *%base, i64 1024 52 %i2 = load i32 *%ptr 53 %cond = icmp ult i32 %i1, %i2 54 %res = select i1 %cond, double %a, double %b 55 ret double %res 56 } 57 58 ; Check the high end of the aligned CLY range. 59 define double @f5(double %a, double %b, i32 %i1, i32 *%base) { 60 ; CHECK-LABEL: f5: 61 ; CHECK: cly %r2, 524284(%r3) 62 ; CHECK-NEXT: jl 63 ; CHECK: ldr %f0, %f2 64 ; CHECK: br %r14 65 %ptr = getelementptr i32 *%base, i64 131071 66 %i2 = load i32 *%ptr 67 %cond = icmp ult i32 %i1, %i2 68 %res = select i1 %cond, double %a, double %b 69 ret double %res 70 } 71 72 ; Check the next word up, which needs separate address logic. 73 ; Other sequences besides this one would be OK. 74 define double @f6(double %a, double %b, i32 %i1, i32 *%base) { 75 ; CHECK-LABEL: f6: 76 ; CHECK: agfi %r3, 524288 77 ; CHECK: cl %r2, 0(%r3) 78 ; CHECK-NEXT: jl 79 ; CHECK: ldr %f0, %f2 80 ; CHECK: br %r14 81 %ptr = getelementptr i32 *%base, i64 131072 82 %i2 = load i32 *%ptr 83 %cond = icmp ult i32 %i1, %i2 84 %res = select i1 %cond, double %a, double %b 85 ret double %res 86 } 87 88 ; Check the high end of the negative aligned CLY range. 89 define double @f7(double %a, double %b, i32 %i1, i32 *%base) { 90 ; CHECK-LABEL: f7: 91 ; CHECK: cly %r2, -4(%r3) 92 ; CHECK-NEXT: jl 93 ; CHECK: ldr %f0, %f2 94 ; CHECK: br %r14 95 %ptr = getelementptr i32 *%base, i64 -1 96 %i2 = load i32 *%ptr 97 %cond = icmp ult i32 %i1, %i2 98 %res = select i1 %cond, double %a, double %b 99 ret double %res 100 } 101 102 ; Check the low end of the CLY range. 103 define double @f8(double %a, double %b, i32 %i1, i32 *%base) { 104 ; CHECK-LABEL: f8: 105 ; CHECK: cly %r2, -524288(%r3) 106 ; CHECK-NEXT: jl 107 ; CHECK: ldr %f0, %f2 108 ; CHECK: br %r14 109 %ptr = getelementptr i32 *%base, i64 -131072 110 %i2 = load i32 *%ptr 111 %cond = icmp ult i32 %i1, %i2 112 %res = select i1 %cond, double %a, double %b 113 ret double %res 114 } 115 116 ; Check the next word down, which needs separate address logic. 117 ; Other sequences besides this one would be OK. 118 define double @f9(double %a, double %b, i32 %i1, i32 *%base) { 119 ; CHECK-LABEL: f9: 120 ; CHECK: agfi %r3, -524292 121 ; CHECK: cl %r2, 0(%r3) 122 ; CHECK-NEXT: jl 123 ; CHECK: ldr %f0, %f2 124 ; CHECK: br %r14 125 %ptr = getelementptr i32 *%base, i64 -131073 126 %i2 = load i32 *%ptr 127 %cond = icmp ult i32 %i1, %i2 128 %res = select i1 %cond, double %a, double %b 129 ret double %res 130 } 131 132 ; Check that CL allows an index. 133 define double @f10(double %a, double %b, i32 %i1, i64 %base, i64 %index) { 134 ; CHECK-LABEL: f10: 135 ; CHECK: cl %r2, 4092({{%r4,%r3|%r3,%r4}}) 136 ; CHECK-NEXT: jl 137 ; CHECK: ldr %f0, %f2 138 ; CHECK: br %r14 139 %add1 = add i64 %base, %index 140 %add2 = add i64 %add1, 4092 141 %ptr = inttoptr i64 %add2 to i32 * 142 %i2 = load i32 *%ptr 143 %cond = icmp ult i32 %i1, %i2 144 %res = select i1 %cond, double %a, double %b 145 ret double %res 146 } 147 148 ; Check that CLY allows an index. 149 define double @f11(double %a, double %b, i32 %i1, i64 %base, i64 %index) { 150 ; CHECK-LABEL: f11: 151 ; CHECK: cly %r2, 4096({{%r4,%r3|%r3,%r4}}) 152 ; CHECK-NEXT: jl 153 ; CHECK: ldr %f0, %f2 154 ; CHECK: br %r14 155 %add1 = add i64 %base, %index 156 %add2 = add i64 %add1, 4096 157 %ptr = inttoptr i64 %add2 to i32 * 158 %i2 = load i32 *%ptr 159 %cond = icmp ult i32 %i1, %i2 160 %res = select i1 %cond, double %a, double %b 161 ret double %res 162 } 163
