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| author | Alex Bradbury <asb@lowrisc.org> | 2017-05-02 13:47:10 +0000 |
|---|---|---|
| committer | Alex Bradbury <asb@lowrisc.org> | 2017-05-02 13:47:10 +0000 |
| commit | 5b359bd0105c4dbd5f301a29b466ccd029901698 (patch) | |
| tree | 4696306cdc8f754d0973176604ae9255d714dba1 /llvm/docs/TableGen | |
| parent | 153911f71d3a07d9dd131668a69283935a06c1c5 (diff) | |
| download | bcm5719-llvm-5b359bd0105c4dbd5f301a29b466ccd029901698.tar.gz bcm5719-llvm-5b359bd0105c4dbd5f301a29b466ccd029901698.zip | |
Improvements to TableGen/LangIntro.rst
Document the 'code' data type, and that value{15-17} is different to
value{17-15}.
Patch by @chenwj (Wei-Ren Chen).
Differential Revision: https://reviews.llvm.org/D32117
llvm-svn: 301920
Diffstat (limited to 'llvm/docs/TableGen')
| -rw-r--r-- | llvm/docs/TableGen/LangIntro.rst | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/llvm/docs/TableGen/LangIntro.rst b/llvm/docs/TableGen/LangIntro.rst index d8bd17d750b..460ff9067f2 100644 --- a/llvm/docs/TableGen/LangIntro.rst +++ b/llvm/docs/TableGen/LangIntro.rst @@ -58,6 +58,10 @@ types are: The 'string' type represents an ordered sequence of characters of arbitrary length. +``code`` + The `code` type represents a code fragment, which can be single/multi-line + string literal. + ``bits<n>`` A 'bits' type is an arbitrary, but fixed, size integer that is broken up into individual bits. This type is useful because it can handle some bits @@ -105,7 +109,7 @@ supported include: hexadecimal integer value ``"foo"`` - string value + a single-line string value, can be assigned to ``string`` or ``code`` variable. ``[{ ... }]`` usually called a "code fragment", but is just a multiline string literal @@ -126,7 +130,8 @@ supported include: access to one bit of a value ``value{15-17}`` - access to multiple bits of a value + access to an ordered sequence of bits of a value, in particular ``value{15-17}`` + produces an order that is the reverse of ``value{17-15}``. ``DEF`` reference to a record definition |
