| Reid Spencer | c094836 | 2007-01-16 18:08:22 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as %s -o - | llvm-dis > %t1.ll; |
| 2 | ; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll |
| 3 | ; RUN: diff %t1.ll %t2.ll |
| 4 | |
| 5 | ; Demonstrate all of the variable argument handling intrinsic functions plus |
| 6 | ; the va_arg instruction. |
| 7 | |
| 8 | implementation |
| 9 | declare void %llvm.va_start(i8** %ap) |
| 10 | declare void %llvm.va_copy(i8** %aq, i8** %ap) |
| 11 | declare void %llvm.va_end(i8** %ap) |
| 12 | |
| 13 | define i33 %test(i33 %X, ...) { |
| 14 | %ap = alloca i8* |
| 15 | call void %llvm.va_start(i8** %ap) |
| 16 | %tmp = va_arg i8** %ap, i33 |
| 17 | |
| 18 | %aq = alloca i8* |
| 19 | call void %llvm.va_copy(i8** %aq, i8** %ap) |
| 20 | call void %llvm.va_end(i8** %aq) |
| 21 | |
| 22 | call void %llvm.va_end(i8** %ap) |
| 23 | ret i33 %tmp |
| 24 | } |