| ; RUN: llvm-as < %s | 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. |
| |
| declare void @llvm.va_start(ptr) |
| |
| declare void @llvm.va_copy(ptr, ptr) |
| |
| declare void @llvm.va_end(ptr) |
| |
| define i32 @test(i32 %X, ...) { |
| ; Allocate two va_list items. On this target, va_list is of type sbyte* |
| %ap = alloca ptr ; <ptr> [#uses=4] |
| %aq = alloca ptr ; <ptr> [#uses=2] |
| |
| ; Initialize variable argument processing |
| call void @llvm.va_start( ptr %ap ) |
| |
| ; Read a single integer argument |
| %tmp = va_arg ptr %ap, i32 ; <i32> [#uses=1] |
| |
| ; Demonstrate usage of llvm.va_copy and llvm_va_end |
| %apv = load ptr, ptr %ap ; <ptr> [#uses=1] |
| call void @llvm.va_copy( ptr %aq, ptr %apv ) |
| call void @llvm.va_end( ptr %aq ) |
| |
| ; Stop processing of arguments. |
| call void @llvm.va_end( ptr %ap ) |
| ret i32 %tmp |
| } |