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Diffstat (limited to 'llvm/test/Integer/varargs_bt.ll')
| -rw-r--r-- | llvm/test/Integer/varargs_bt.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/llvm/test/Integer/varargs_bt.ll b/llvm/test/Integer/varargs_bt.ll new file mode 100644 index 00000000000..0cc4d436065 --- /dev/null +++ b/llvm/test/Integer/varargs_bt.ll @@ -0,0 +1,24 @@ +; 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 +declare void %llvm.va_start(i8** %ap) +declare void %llvm.va_copy(i8** %aq, i8** %ap) +declare void %llvm.va_end(i8** %ap) + +define i33 %test(i33 %X, ...) { + %ap = alloca i8* + call void %llvm.va_start(i8** %ap) + %tmp = va_arg i8** %ap, i33 + + %aq = alloca i8* + call void %llvm.va_copy(i8** %aq, i8** %ap) + call void %llvm.va_end(i8** %aq) + + call void %llvm.va_end(i8** %ap) + ret i33 %tmp +} |
