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; RUN: opt < %s -disable-basicaa -cfl-steens-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
; CHECK-LABEL: Function: test1
; CHECK: MayAlias: i32* %X, i32* %tmp
; CHECK: MayAlias: i32* %tmp, i8** %ap
; CHECK: NoAlias: i8** %ap, i8** %aq
; CHECK: MayAlias: i32* %tmp, i8** %aq
define i32* @test1(i32* %X, ...) {
; Initialize variable argument processing
%ap = alloca i8*
%ap2 = bitcast i8** %ap to i8*
call void @llvm.va_start(i8* %ap2)
; Read a single pointer argument
%tmp = va_arg i8** %ap, i32*
; Demonstrate usage of llvm.va_copy and llvm.va_end
%aq = alloca i8*
%aq2 = bitcast i8** %aq to i8*
call void @llvm.va_copy(i8* %aq2, i8* %ap2)
call void @llvm.va_end(i8* %aq2)
; Stop processing of arguments.
call void @llvm.va_end(i8* %ap2)
ret i32* %tmp
}
declare void @llvm.va_start(i8*)
declare void @llvm.va_copy(i8*, i8*)
declare void @llvm.va_end(i8*)
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