1 ; Test multiplication of two f64s, producing an f64 result. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 \ 4 ; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SCALAR %s 5 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s 6 7 declare double @foo() 8 9 ; Check register multiplication. 10 define double @f1(double %f1, double %f2) { 11 ; CHECK-LABEL: f1: 12 ; CHECK: mdbr %f0, %f2 13 ; CHECK: br %r14 14 %res = fmul double %f1, %f2 15 ret double %res 16 } 17 18 ; Check the low end of the MDB range. 19 define double @f2(double %f1, double *%ptr) { 20 ; CHECK-LABEL: f2: 21 ; CHECK: mdb %f0, 0(%r2) 22 ; CHECK: br %r14 23 %f2 = load double , double *%ptr 24 %res = fmul double %f1, %f2 25 ret double %res 26 } 27 28 ; Check the high end of the aligned MDB range. 29 define double @f3(double %f1, double *%base) { 30 ; CHECK-LABEL: f3: 31 ; CHECK: mdb %f0, 4088(%r2) 32 ; CHECK: br %r14 33 %ptr = getelementptr double, double *%base, i64 511 34 %f2 = load double , double *%ptr 35 %res = fmul double %f1, %f2 36 ret double %res 37 } 38 39 ; Check the next doubleword up, which needs separate address logic. 40 ; Other sequences besides this one would be OK. 41 define double @f4(double %f1, double *%base) { 42 ; CHECK-LABEL: f4: 43 ; CHECK: aghi %r2, 4096 44 ; CHECK: mdb %f0, 0(%r2) 45 ; CHECK: br %r14 46 %ptr = getelementptr double, double *%base, i64 512 47 %f2 = load double , double *%ptr 48 %res = fmul double %f1, %f2 49 ret double %res 50 } 51 52 ; Check negative displacements, which also need separate address logic. 53 define double @f5(double %f1, double *%base) { 54 ; CHECK-LABEL: f5: 55 ; CHECK: aghi %r2, -8 56 ; CHECK: mdb %f0, 0(%r2) 57 ; CHECK: br %r14 58 %ptr = getelementptr double, double *%base, i64 -1 59 %f2 = load double , double *%ptr 60 %res = fmul double %f1, %f2 61 ret double %res 62 } 63 64 ; Check that MDB allows indices. 65 define double @f6(double %f1, double *%base, i64 %index) { 66 ; CHECK-LABEL: f6: 67 ; CHECK: sllg %r1, %r3, 3 68 ; CHECK: mdb %f0, 800(%r1,%r2) 69 ; CHECK: br %r14 70 %ptr1 = getelementptr double, double *%base, i64 %index 71 %ptr2 = getelementptr double, double *%ptr1, i64 100 72 %f2 = load double , double *%ptr2 73 %res = fmul double %f1, %f2 74 ret double %res 75 } 76 77 ; Check that multiplications of spilled values can use MDB rather than MDBR. 78 define double @f7(double *%ptr0) { 79 ; CHECK-LABEL: f7: 80 ; CHECK: brasl %r14, foo@PLT 81 ; CHECK-SCALAR: mdb %f0, 160(%r15) 82 ; CHECK: br %r14 83 %ptr1 = getelementptr double, double *%ptr0, i64 2 84 %ptr2 = getelementptr double, double *%ptr0, i64 4 85 %ptr3 = getelementptr double, double *%ptr0, i64 6 86 %ptr4 = getelementptr double, double *%ptr0, i64 8 87 %ptr5 = getelementptr double, double *%ptr0, i64 10 88 %ptr6 = getelementptr double, double *%ptr0, i64 12 89 %ptr7 = getelementptr double, double *%ptr0, i64 14 90 %ptr8 = getelementptr double, double *%ptr0, i64 16 91 %ptr9 = getelementptr double, double *%ptr0, i64 18 92 %ptr10 = getelementptr double, double *%ptr0, i64 20 93 94 %val0 = load double , double *%ptr0 95 %val1 = load double , double *%ptr1 96 %val2 = load double , double *%ptr2 97 %val3 = load double , double *%ptr3 98 %val4 = load double , double *%ptr4 99 %val5 = load double , double *%ptr5 100 %val6 = load double , double *%ptr6 101 %val7 = load double , double *%ptr7 102 %val8 = load double , double *%ptr8 103 %val9 = load double , double *%ptr9 104 %val10 = load double , double *%ptr10 105 106 %ret = call double @foo() 107 108 %mul0 = fmul double %ret, %val0 109 %mul1 = fmul double %mul0, %val1 110 %mul2 = fmul double %mul1, %val2 111 %mul3 = fmul double %mul2, %val3 112 %mul4 = fmul double %mul3, %val4 113 %mul5 = fmul double %mul4, %val5 114 %mul6 = fmul double %mul5, %val6 115 %mul7 = fmul double %mul6, %val7 116 %mul8 = fmul double %mul7, %val8 117 %mul9 = fmul double %mul8, %val9 118 %mul10 = fmul double %mul9, %val10 119 120 ret double %mul10 121 } 122
