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llvm-mirror/test/Feature/varargs.ll
2003-05-08 03:46:51 +00:00

22 lines
574 B
LLVM

; Demonstrate all of the variable argument handling intrinsic functions plus
; the va_arg instruction.
implementation
declare void %llvm.va_start(sbyte**, ...)
declare void %llvm.va_copy(sbyte**, sbyte*)
declare void %llvm.va_end(sbyte**)
int %test(int %X, ...) {
%ap = alloca sbyte*
%aq = alloca sbyte*
call void (sbyte**, ...)* %llvm.va_start(sbyte** %ap, int %X)
%apv = load sbyte** %ap
call void %llvm.va_copy(sbyte** %aq, sbyte* %apv)
call void %llvm.va_end(sbyte** %aq)
%tmp = va_arg sbyte** %ap, int
call void %llvm.va_end(sbyte** %ap)
ret int %tmp
}