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1; RUN: llvm-as < %s | llvm-dis > %t1.ll2; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll3; RUN: diff %t1.ll %t2.ll4 5; Demonstrate all of the variable argument handling intrinsic functions plus 6; the va_arg instruction.7 8declare void @llvm.va_start(ptr)9 10declare void @llvm.va_copy(ptr, ptr)11 12declare void @llvm.va_end(ptr)13 14define i32 @test(i32 %X, ...) {15 ; Allocate two va_list items. On this target, va_list is of type sbyte*16 %ap = alloca ptr ; <ptr> [#uses=4]17 %aq = alloca ptr ; <ptr> [#uses=2]18 19 ; Initialize variable argument processing20 call void @llvm.va_start( ptr %ap )21 22 ; Read a single integer argument23 %tmp = va_arg ptr %ap, i32 ; <i32> [#uses=1]24 25 ; Demonstrate usage of llvm.va_copy and llvm_va_end26 %apv = load ptr, ptr %ap ; <ptr> [#uses=1]27 call void @llvm.va_copy( ptr %aq, ptr %apv )28 call void @llvm.va_end( ptr %aq )29 30 ; Stop processing of arguments.31 call void @llvm.va_end( ptr %ap )32 ret i32 %tmp33}34