diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/MIRLangRef.rst | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/docs/MIRLangRef.rst b/docs/MIRLangRef.rst index ebc9d456703..14ac63bbd9d 100644 --- a/docs/MIRLangRef.rst +++ b/docs/MIRLangRef.rst @@ -665,13 +665,26 @@ Example: - id: 1 blocks: [ '%bb.7', '%bb.7', '%bb.4.d3', '%bb.5' ] +External Symbol Operands +^^^^^^^^^^^^^^^^^^^^^^^^^ + +An external symbol operand is represented using an identifier with the ``$`` +prefix. The identifier is surrounded with ""'s and escaped if it has any +special non-printable characters in it. + +Example: + +.. code-block:: text + + CALL64pcrel32 $__stack_chk_fail, csr_64, implicit %rsp, implicit-def %rsp + + .. TODO: Describe the parsers default behaviour when optional YAML attributes are missing. .. TODO: Describe the syntax for the bundled instructions. .. TODO: Describe the syntax for virtual register YAML definitions. .. TODO: Describe the machine function's YAML flag attributes. -.. TODO: Describe the syntax for the external symbol and register - mask machine operands. +.. TODO: Describe the syntax for the register mask machine operands. .. TODO: Describe the frame information YAML mapping. .. TODO: Describe the syntax of the stack object machine operands and their YAML definitions. |