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150
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1 ; RUN: llvm-as < %s | llvm-dis > %t1.ll
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2 ; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
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3 ; RUN: diff %t1.ll %t2.ll
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4
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5 ; Demonstrate all of the variable argument handling intrinsic functions plus
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6 ; the va_arg instruction.
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7
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8 declare void @llvm.va_start(i8*)
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9
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10 declare void @llvm.va_copy(i8*, i8*)
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11
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12 declare void @llvm.va_end(i8*)
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13
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14 define i32 @test(i32 %X, ...) {
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15 %ap = alloca i8* ; <i8**> [#uses=4]
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16 %va.upgrd.1 = bitcast i8** %ap to i8* ; <i8*> [#uses=1]
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17 call void @llvm.va_start( i8* %va.upgrd.1 )
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18 %tmp = va_arg i8** %ap, i32 ; <i32> [#uses=1]
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19 %aq = alloca i8* ; <i8**> [#uses=2]
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20 %va0.upgrd.2 = bitcast i8** %aq to i8* ; <i8*> [#uses=1]
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21 %va1.upgrd.3 = bitcast i8** %ap to i8* ; <i8*> [#uses=1]
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22 call void @llvm.va_copy( i8* %va0.upgrd.2, i8* %va1.upgrd.3 )
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23 %va.upgrd.4 = bitcast i8** %aq to i8* ; <i8*> [#uses=1]
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24 call void @llvm.va_end( i8* %va.upgrd.4 )
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25 %va.upgrd.5 = bitcast i8** %ap to i8* ; <i8*> [#uses=1]
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26 call void @llvm.va_end( i8* %va.upgrd.5 )
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27 ret i32 %tmp
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28 }
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29
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