1 ; Test 64-bit square root. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 declare double @llvm.sqrt.f64(double %f) 6 declare double @sqrt(double) 7 8 ; Check register square root. 9 define double @f1(double %val) { 10 ; CHECK-LABEL: f1: 11 ; CHECK: sqdbr %f0, %f0 12 ; CHECK: br %r14 13 %res = call double @llvm.sqrt.f64(double %val) 14 ret double %res 15 } 16 17 ; Check the low end of the SQDB range. 18 define double @f2(double *%ptr) { 19 ; CHECK-LABEL: f2: 20 ; CHECK: sqdb %f0, 0(%r2) 21 ; CHECK: br %r14 22 %val = load double *%ptr 23 %res = call double @llvm.sqrt.f64(double %val) 24 ret double %res 25 } 26 27 ; Check the high end of the aligned SQDB range. 28 define double @f3(double *%base) { 29 ; CHECK-LABEL: f3: 30 ; CHECK: sqdb %f0, 4088(%r2) 31 ; CHECK: br %r14 32 %ptr = getelementptr double *%base, i64 511 33 %val = load double *%ptr 34 %res = call double @llvm.sqrt.f64(double %val) 35 ret double %res 36 } 37 38 ; Check the next doubleword up, which needs separate address logic. 39 ; Other sequences besides this one would be OK. 40 define double @f4(double *%base) { 41 ; CHECK-LABEL: f4: 42 ; CHECK: aghi %r2, 4096 43 ; CHECK: sqdb %f0, 0(%r2) 44 ; CHECK: br %r14 45 %ptr = getelementptr double *%base, i64 512 46 %val = load double *%ptr 47 %res = call double @llvm.sqrt.f64(double %val) 48 ret double %res 49 } 50 51 ; Check negative displacements, which also need separate address logic. 52 define double @f5(double *%base) { 53 ; CHECK-LABEL: f5: 54 ; CHECK: aghi %r2, -8 55 ; CHECK: sqdb %f0, 0(%r2) 56 ; CHECK: br %r14 57 %ptr = getelementptr double *%base, i64 -1 58 %val = load double *%ptr 59 %res = call double @llvm.sqrt.f64(double %val) 60 ret double %res 61 } 62 63 ; Check that SQDB allows indices. 64 define double @f6(double *%base, i64 %index) { 65 ; CHECK-LABEL: f6: 66 ; CHECK: sllg %r1, %r3, 3 67 ; CHECK: sqdb %f0, 800(%r1,%r2) 68 ; CHECK: br %r14 69 %ptr1 = getelementptr double *%base, i64 %index 70 %ptr2 = getelementptr double *%ptr1, i64 100 71 %val = load double *%ptr2 72 %res = call double @llvm.sqrt.f64(double %val) 73 ret double %res 74 } 75 76 ; Test a case where we spill the source of at least one SQDBR. We want 77 ; to use SQDB if possible. 78 define void @f7(double *%ptr) { 79 ; CHECK-LABEL: f7: 80 ; CHECK: sqdb {{%f[0-9]+}}, 160(%r15) 81 ; CHECK: br %r14 82 %val0 = load volatile double *%ptr 83 %val1 = load volatile double *%ptr 84 %val2 = load volatile double *%ptr 85 %val3 = load volatile double *%ptr 86 %val4 = load volatile double *%ptr 87 %val5 = load volatile double *%ptr 88 %val6 = load volatile double *%ptr 89 %val7 = load volatile double *%ptr 90 %val8 = load volatile double *%ptr 91 %val9 = load volatile double *%ptr 92 %val10 = load volatile double *%ptr 93 %val11 = load volatile double *%ptr 94 %val12 = load volatile double *%ptr 95 %val13 = load volatile double *%ptr 96 %val14 = load volatile double *%ptr 97 %val15 = load volatile double *%ptr 98 %val16 = load volatile double *%ptr 99 100 %sqrt0 = call double @llvm.sqrt.f64(double %val0) 101 %sqrt1 = call double @llvm.sqrt.f64(double %val1) 102 %sqrt2 = call double @llvm.sqrt.f64(double %val2) 103 %sqrt3 = call double @llvm.sqrt.f64(double %val3) 104 %sqrt4 = call double @llvm.sqrt.f64(double %val4) 105 %sqrt5 = call double @llvm.sqrt.f64(double %val5) 106 %sqrt6 = call double @llvm.sqrt.f64(double %val6) 107 %sqrt7 = call double @llvm.sqrt.f64(double %val7) 108 %sqrt8 = call double @llvm.sqrt.f64(double %val8) 109 %sqrt9 = call double @llvm.sqrt.f64(double %val9) 110 %sqrt10 = call double @llvm.sqrt.f64(double %val10) 111 %sqrt11 = call double @llvm.sqrt.f64(double %val11) 112 %sqrt12 = call double @llvm.sqrt.f64(double %val12) 113 %sqrt13 = call double @llvm.sqrt.f64(double %val13) 114 %sqrt14 = call double @llvm.sqrt.f64(double %val14) 115 %sqrt15 = call double @llvm.sqrt.f64(double %val15) 116 %sqrt16 = call double @llvm.sqrt.f64(double %val16) 117 118 store volatile double %val0, double *%ptr 119 store volatile double %val1, double *%ptr 120 store volatile double %val2, double *%ptr 121 store volatile double %val3, double *%ptr 122 store volatile double %val4, double *%ptr 123 store volatile double %val5, double *%ptr 124 store volatile double %val6, double *%ptr 125 store volatile double %val7, double *%ptr 126 store volatile double %val8, double *%ptr 127 store volatile double %val9, double *%ptr 128 store volatile double %val10, double *%ptr 129 store volatile double %val11, double *%ptr 130 store volatile double %val12, double *%ptr 131 store volatile double %val13, double *%ptr 132 store volatile double %val14, double *%ptr 133 store volatile double %val15, double *%ptr 134 store volatile double %val16, double *%ptr 135 136 store volatile double %sqrt0, double *%ptr 137 store volatile double %sqrt1, double *%ptr 138 store volatile double %sqrt2, double *%ptr 139 store volatile double %sqrt3, double *%ptr 140 store volatile double %sqrt4, double *%ptr 141 store volatile double %sqrt5, double *%ptr 142 store volatile double %sqrt6, double *%ptr 143 store volatile double %sqrt7, double *%ptr 144 store volatile double %sqrt8, double *%ptr 145 store volatile double %sqrt9, double *%ptr 146 store volatile double %sqrt10, double *%ptr 147 store volatile double %sqrt11, double *%ptr 148 store volatile double %sqrt12, double *%ptr 149 store volatile double %sqrt13, double *%ptr 150 store volatile double %sqrt14, double *%ptr 151 store volatile double %sqrt15, double *%ptr 152 store volatile double %sqrt16, double *%ptr 153 154 ret void 155 } 156 157 ; Check that a call to the normal sqrt function is lowered. 158 define double @f8(double %dummy, double %val) { 159 ; CHECK-LABEL: f8: 160 ; CHECK: sqdbr %f0, %f2 161 ; CHECK: cdbr %f0, %f0 162 ; CHECK: jo [[LABEL:\.L.*]] 163 ; CHECK: br %r14 164 ; CHECK: [[LABEL]]: 165 ; CHECK: ldr %f0, %f2 166 ; CHECK: jg sqrt@PLT 167 %res = tail call double @sqrt(double %val) 168 ret double %res 169 } 170
