25 lines
740 B
LLVM
25 lines
740 B
LLVM
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; RUN: llvm-as < %s | llvm-dis > %t1.ll
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; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
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; RUN: diff %t1.ll %t2.ll
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; Demonstrate all of the variable argument handling intrinsic functions plus
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; the va_arg instruction.
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declare void @llvm.va_start(ptr)
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declare void @llvm.va_copy(ptr, ptr)
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declare void @llvm.va_end(ptr)
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define i32 @test(i32 %X, ...) {
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%ap = alloca ptr ; <ptr> [#uses=4]
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call void @llvm.va_start( ptr %ap )
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%tmp = va_arg ptr %ap, i32 ; <i32> [#uses=1]
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%aq = alloca ptr ; <ptr> [#uses=2]
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call void @llvm.va_copy( ptr %aq, ptr %ap )
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call void @llvm.va_end( ptr %aq )
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call void @llvm.va_end( ptr %ap )
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ret i32 %tmp
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}
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