diff options
| -rw-r--r-- | test/CodeGen/X86/ioport.llx | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/X86/ioport.llx b/test/CodeGen/X86/ioport.llx new file mode 100644 index 0000000000..37f80d2fb8 --- /dev/null +++ b/test/CodeGen/X86/ioport.llx @@ -0,0 +1,18 @@ +; RUN: llvm-as < %s | llc -march=x86 + +implementation + +declare int %llvm.readport (ushort) +declare void %llvm.writeport (int, ushort) + +uint %in (uint %p) { + %i1 = call int(ushort)* %llvm.readport (ushort 255) + ret uint 5 +} + + +uint %out (uint %p) { + call void(int, ushort)* %llvm.writeport (int 1, ushort 255) + ret uint 5 +} + |