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new vararg test

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22252 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth 2005-06-18 18:30:37 +00:00
parent 8bf607a221
commit cc494e8312
1 changed files with 33 additions and 0 deletions
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test/Feature/varargs_new.ll Normal file
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; RUN: llvm-as %s -o - | llvm-dis > %t1.ll
; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
; RUN: diff %t1.ll %t2.ll
; Demonstrate all of the variable argument handling intrinsic functions plus
; the va_arg instruction.
implementation ; Functions:
declare void %llvm.va_start(sbyte**)
declare void %llvm.va_copy(sbyte**, sbyte*)
declare void %llvm.va_end(sbyte**)
int %test(int %X, ...) {
; Allocate two va_list items. On this target, va_list is of type sbyte*
%ap = alloca sbyte* ; <sbyte**> [#uses=4]
%aq = alloca sbyte* ; <sbyte**> [#uses=2]
; Initialize variable argument processing
call void %llvm.va_start(sbyte** %ap)
; Read a single integer argument
%tmp = vaarg sbyte** %ap, int ; <int> [#uses=1]
; Demonstrate usage of llvm.va_copy and llvm_va_end
%apv = load sbyte** %ap ; <sbyte*> [#uses=1]
call void %llvm.va_copy(sbyte** %aq, sbyte* %apv)
call void %llvm.va_end(sbyte** %aq)
; Stop processing of arguments.
call void %llvm.va_end(sbyte** %ap)
ret int %tmp
}