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