1 ; Test 32-bit multiplication in which the second operand is variable. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 declare i32 @foo() 6 7 ; Check MSR. 8 define i32 @f1(i32 %a, i32 %b) { 9 ; CHECK-LABEL: f1: 10 ; CHECK: msr %r2, %r3 11 ; CHECK: br %r14 12 %mul = mul i32 %a, %b 13 ret i32 %mul 14 } 15 16 ; Check the low end of the MS range. 17 define i32 @f2(i32 %a, i32 *%src) { 18 ; CHECK-LABEL: f2: 19 ; CHECK: ms %r2, 0(%r3) 20 ; CHECK: br %r14 21 %b = load i32 , i32 *%src 22 %mul = mul i32 %a, %b 23 ret i32 %mul 24 } 25 26 ; Check the high end of the aligned MS range. 27 define i32 @f3(i32 %a, i32 *%src) { 28 ; CHECK-LABEL: f3: 29 ; CHECK: ms %r2, 4092(%r3) 30 ; CHECK: br %r14 31 %ptr = getelementptr i32, i32 *%src, i64 1023 32 %b = load i32 , i32 *%ptr 33 %mul = mul i32 %a, %b 34 ret i32 %mul 35 } 36 37 ; Check the next word up, which should use MSY instead of MS. 38 define i32 @f4(i32 %a, i32 *%src) { 39 ; CHECK-LABEL: f4: 40 ; CHECK: msy %r2, 4096(%r3) 41 ; CHECK: br %r14 42 %ptr = getelementptr i32, i32 *%src, i64 1024 43 %b = load i32 , i32 *%ptr 44 %mul = mul i32 %a, %b 45 ret i32 %mul 46 } 47 48 ; Check the high end of the aligned MSY range. 49 define i32 @f5(i32 %a, i32 *%src) { 50 ; CHECK-LABEL: f5: 51 ; CHECK: msy %r2, 524284(%r3) 52 ; CHECK: br %r14 53 %ptr = getelementptr i32, i32 *%src, i64 131071 54 %b = load i32 , i32 *%ptr 55 %mul = mul i32 %a, %b 56 ret i32 %mul 57 } 58 59 ; Check the next word up, which needs separate address logic. 60 ; Other sequences besides this one would be OK. 61 define i32 @f6(i32 %a, i32 *%src) { 62 ; CHECK-LABEL: f6: 63 ; CHECK: agfi %r3, 524288 64 ; CHECK: ms %r2, 0(%r3) 65 ; CHECK: br %r14 66 %ptr = getelementptr i32, i32 *%src, i64 131072 67 %b = load i32 , i32 *%ptr 68 %mul = mul i32 %a, %b 69 ret i32 %mul 70 } 71 72 ; Check the high end of the negative aligned MSY range. 73 define i32 @f7(i32 %a, i32 *%src) { 74 ; CHECK-LABEL: f7: 75 ; CHECK: msy %r2, -4(%r3) 76 ; CHECK: br %r14 77 %ptr = getelementptr i32, i32 *%src, i64 -1 78 %b = load i32 , i32 *%ptr 79 %mul = mul i32 %a, %b 80 ret i32 %mul 81 } 82 83 ; Check the low end of the MSY range. 84 define i32 @f8(i32 %a, i32 *%src) { 85 ; CHECK-LABEL: f8: 86 ; CHECK: msy %r2, -524288(%r3) 87 ; CHECK: br %r14 88 %ptr = getelementptr i32, i32 *%src, i64 -131072 89 %b = load i32 , i32 *%ptr 90 %mul = mul i32 %a, %b 91 ret i32 %mul 92 } 93 94 ; Check the next word down, which needs separate address logic. 95 ; Other sequences besides this one would be OK. 96 define i32 @f9(i32 %a, i32 *%src) { 97 ; CHECK-LABEL: f9: 98 ; CHECK: agfi %r3, -524292 99 ; CHECK: ms %r2, 0(%r3) 100 ; CHECK: br %r14 101 %ptr = getelementptr i32, i32 *%src, i64 -131073 102 %b = load i32 , i32 *%ptr 103 %mul = mul i32 %a, %b 104 ret i32 %mul 105 } 106 107 ; Check that MS allows an index. 108 define i32 @f10(i32 %a, i64 %src, i64 %index) { 109 ; CHECK-LABEL: f10: 110 ; CHECK: ms %r2, 4092({{%r4,%r3|%r3,%r4}}) 111 ; CHECK: br %r14 112 %add1 = add i64 %src, %index 113 %add2 = add i64 %add1, 4092 114 %ptr = inttoptr i64 %add2 to i32 * 115 %b = load i32 , i32 *%ptr 116 %mul = mul i32 %a, %b 117 ret i32 %mul 118 } 119 120 ; Check that MSY allows an index. 121 define i32 @f11(i32 %a, i64 %src, i64 %index) { 122 ; CHECK-LABEL: f11: 123 ; CHECK: msy %r2, 4096({{%r4,%r3|%r3,%r4}}) 124 ; CHECK: br %r14 125 %add1 = add i64 %src, %index 126 %add2 = add i64 %add1, 4096 127 %ptr = inttoptr i64 %add2 to i32 * 128 %b = load i32 , i32 *%ptr 129 %mul = mul i32 %a, %b 130 ret i32 %mul 131 } 132 133 ; Check that multiplications of spilled values can use MS rather than MSR. 134 define i32 @f12(i32 *%ptr0) { 135 ; CHECK-LABEL: f12: 136 ; CHECK: brasl %r14, foo@PLT 137 ; CHECK: ms %r2, 16{{[04]}}(%r15) 138 ; CHECK: br %r14 139 %ptr1 = getelementptr i32, i32 *%ptr0, i64 2 140 %ptr2 = getelementptr i32, i32 *%ptr0, i64 4 141 %ptr3 = getelementptr i32, i32 *%ptr0, i64 6 142 %ptr4 = getelementptr i32, i32 *%ptr0, i64 8 143 %ptr5 = getelementptr i32, i32 *%ptr0, i64 10 144 %ptr6 = getelementptr i32, i32 *%ptr0, i64 12 145 %ptr7 = getelementptr i32, i32 *%ptr0, i64 14 146 %ptr8 = getelementptr i32, i32 *%ptr0, i64 16 147 %ptr9 = getelementptr i32, i32 *%ptr0, i64 18 148 149 %val0 = load i32 , i32 *%ptr0 150 %val1 = load i32 , i32 *%ptr1 151 %val2 = load i32 , i32 *%ptr2 152 %val3 = load i32 , i32 *%ptr3 153 %val4 = load i32 , i32 *%ptr4 154 %val5 = load i32 , i32 *%ptr5 155 %val6 = load i32 , i32 *%ptr6 156 %val7 = load i32 , i32 *%ptr7 157 %val8 = load i32 , i32 *%ptr8 158 %val9 = load i32 , i32 *%ptr9 159 160 %ret = call i32 @foo() 161 162 %mul0 = mul i32 %ret, %val0 163 %mul1 = mul i32 %mul0, %val1 164 %mul2 = mul i32 %mul1, %val2 165 %mul3 = mul i32 %mul2, %val3 166 %mul4 = mul i32 %mul3, %val4 167 %mul5 = mul i32 %mul4, %val5 168 %mul6 = mul i32 %mul5, %val6 169 %mul7 = mul i32 %mul6, %val7 170 %mul8 = mul i32 %mul7, %val8 171 %mul9 = mul i32 %mul8, %val9 172 173 ret i32 %mul9 174 } 175
