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1; Test strict 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 %s5; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s6 7declare double @foo()8declare double @llvm.experimental.constrained.fmul.f64(double, double, metadata, metadata)9 10; Check register multiplication.11define double @f1(double %f1, double %f2) #0 {12; CHECK-LABEL: f1:13; CHECK: mdbr %f0, %f214; CHECK: br %r1415 %res = call double @llvm.experimental.constrained.fmul.f64(16 double %f1, double %f2,17 metadata !"round.dynamic",18 metadata !"fpexcept.strict") #019 ret double %res20}21 22; Check the low end of the MDB range.23define double @f2(double %f1, ptr %ptr) #0 {24; CHECK-LABEL: f2:25; CHECK: mdb %f0, 0(%r2)26; CHECK: br %r1427 %f2 = load double, ptr %ptr28 %res = call double @llvm.experimental.constrained.fmul.f64(29 double %f1, double %f2,30 metadata !"round.dynamic",31 metadata !"fpexcept.strict") #032 ret double %res33}34 35; Check the high end of the aligned MDB range.36define double @f3(double %f1, ptr %base) #0 {37; CHECK-LABEL: f3:38; CHECK: mdb %f0, 4088(%r2)39; CHECK: br %r1440 %ptr = getelementptr double, ptr %base, i64 51141 %f2 = load double, ptr %ptr42 %res = call double @llvm.experimental.constrained.fmul.f64(43 double %f1, double %f2,44 metadata !"round.dynamic",45 metadata !"fpexcept.strict") #046 ret double %res47}48 49; Check the next doubleword up, which needs separate address logic.50; Other sequences besides this one would be OK.51define double @f4(double %f1, ptr %base) #0 {52; CHECK-LABEL: f4:53; CHECK: aghi %r2, 409654; CHECK: mdb %f0, 0(%r2)55; CHECK: br %r1456 %ptr = getelementptr double, ptr %base, i64 51257 %f2 = load double, ptr %ptr58 %res = call double @llvm.experimental.constrained.fmul.f64(59 double %f1, double %f2,60 metadata !"round.dynamic",61 metadata !"fpexcept.strict") #062 ret double %res63}64 65; Check negative displacements, which also need separate address logic.66define double @f5(double %f1, ptr %base) #0 {67; CHECK-LABEL: f5:68; CHECK: aghi %r2, -869; CHECK: mdb %f0, 0(%r2)70; CHECK: br %r1471 %ptr = getelementptr double, ptr %base, i64 -172 %f2 = load double, ptr %ptr73 %res = call double @llvm.experimental.constrained.fmul.f64(74 double %f1, double %f2,75 metadata !"round.dynamic",76 metadata !"fpexcept.strict") #077 ret double %res78}79 80; Check that MDB allows indices.81define double @f6(double %f1, ptr %base, i64 %index) #0 {82; CHECK-LABEL: f6:83; CHECK: sllg %r1, %r3, 384; CHECK: mdb %f0, 800(%r1,%r2)85; CHECK: br %r1486 %ptr1 = getelementptr double, ptr %base, i64 %index87 %ptr2 = getelementptr double, ptr %ptr1, i64 10088 %f2 = load double, ptr %ptr289 %res = call double @llvm.experimental.constrained.fmul.f64(90 double %f1, double %f2,91 metadata !"round.dynamic",92 metadata !"fpexcept.strict") #093 ret double %res94}95 96; Check that multiplications of spilled values can use MDB rather than MDBR.97define double @f7(ptr %ptr0) #0 {98; CHECK-LABEL: f7:99; CHECK: brasl %r14, foo@PLT100; CHECK-SCALAR: mdb %f0, 160(%r15)101; CHECK: br %r14102 %ptr1 = getelementptr double, ptr %ptr0, i64 2103 %ptr2 = getelementptr double, ptr %ptr0, i64 4104 %ptr3 = getelementptr double, ptr %ptr0, i64 6105 %ptr4 = getelementptr double, ptr %ptr0, i64 8106 %ptr5 = getelementptr double, ptr %ptr0, i64 10107 %ptr6 = getelementptr double, ptr %ptr0, i64 12108 %ptr7 = getelementptr double, ptr %ptr0, i64 14109 %ptr8 = getelementptr double, ptr %ptr0, i64 16110 %ptr9 = getelementptr double, ptr %ptr0, i64 18111 %ptr10 = getelementptr double, ptr %ptr0, i64 20112 113 %val0 = load double, ptr %ptr0114 %val1 = load double, ptr %ptr1115 %val2 = load double, ptr %ptr2116 %val3 = load double, ptr %ptr3117 %val4 = load double, ptr %ptr4118 %val5 = load double, ptr %ptr5119 %val6 = load double, ptr %ptr6120 %val7 = load double, ptr %ptr7121 %val8 = load double, ptr %ptr8122 %val9 = load double, ptr %ptr9123 %val10 = load double, ptr %ptr10124 125 %ret = call double @foo() #0126 127 %mul0 = call double @llvm.experimental.constrained.fmul.f64(128 double %ret, double %val0,129 metadata !"round.dynamic",130 metadata !"fpexcept.strict") #0131 %mul1 = call double @llvm.experimental.constrained.fmul.f64(132 double %mul0, double %val1,133 metadata !"round.dynamic",134 metadata !"fpexcept.strict") #0135 %mul2 = call double @llvm.experimental.constrained.fmul.f64(136 double %mul1, double %val2,137 metadata !"round.dynamic",138 metadata !"fpexcept.strict") #0139 %mul3 = call double @llvm.experimental.constrained.fmul.f64(140 double %mul2, double %val3,141 metadata !"round.dynamic",142 metadata !"fpexcept.strict") #0143 %mul4 = call double @llvm.experimental.constrained.fmul.f64(144 double %mul3, double %val4,145 metadata !"round.dynamic",146 metadata !"fpexcept.strict") #0147 %mul5 = call double @llvm.experimental.constrained.fmul.f64(148 double %mul4, double %val5,149 metadata !"round.dynamic",150 metadata !"fpexcept.strict") #0151 %mul6 = call double @llvm.experimental.constrained.fmul.f64(152 double %mul5, double %val6,153 metadata !"round.dynamic",154 metadata !"fpexcept.strict") #0155 %mul7 = call double @llvm.experimental.constrained.fmul.f64(156 double %mul6, double %val7,157 metadata !"round.dynamic",158 metadata !"fpexcept.strict") #0159 %mul8 = call double @llvm.experimental.constrained.fmul.f64(160 double %mul7, double %val8,161 metadata !"round.dynamic",162 metadata !"fpexcept.strict") #0163 %mul9 = call double @llvm.experimental.constrained.fmul.f64(164 double %mul8, double %val9,165 metadata !"round.dynamic",166 metadata !"fpexcept.strict") #0167 %mul10 = call double @llvm.experimental.constrained.fmul.f64(168 double %mul9, double %val10,169 metadata !"round.dynamic",170 metadata !"fpexcept.strict") #0171 172 ret double %mul10173}174 175attributes #0 = { strictfp }176