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annotate test/CodeGen/AVR/umul-with-overflow.ll @ 128:c347d3398279 default tip

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fix
author mir3636
date Wed, 06 Dec 2017 14:37:17 +0900
parents 1172e4bd9c6f
children
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120
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1 ; RUN: llc < %s -march=avr | FileCheck %s
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2
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3 define i1 @unsigned_multiplication_did_overflow(i8, i8) unnamed_addr {
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4 ; CHECK-LABEL: unsigned_multiplication_did_overflow:
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5 entry-block:
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6 %2 = tail call { i8, i1 } @llvm.umul.with.overflow.i8(i8 %0, i8 %1)
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7 %3 = extractvalue { i8, i1 } %2, 1
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8 ret i1 %3
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9
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10 ; Multiply, return if the high byte is zero
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11 ;
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12 ; CHECK: mul r{{[0-9]+}}, r{{[0-9]+}}
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13 ; CHECK: mov [[HIGH:r[0-9]+]], r1
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14 ; CHECK: ldi [[RET:r[0-9]+]], 1
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15 ; CHECK: cpi {{.*}}[[HIGH]], 0
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16 ; CHECK: brne [[LABEL:LBB[_0-9]+]]
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17 ; CHECK: ldi {{.*}}[[RET]], 0
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18 ; CHECK: {{.*}}[[LABEL]]
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19 ; CHECK: ret
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20 }
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21
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22 declare { i8, i1 } @llvm.umul.with.overflow.i8(i8, i8)