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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-03-24 19:36:51 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-03-24 19:36:51 +0000 |
| commit | 91a5848cab499b280bbab58b4896af4a20f826fc (patch) | |
| tree | 81dc0af7f65593d216820b0eb177261fcb3cc474 /llvm/utils/TableGen/CodeGenDAGPatterns.cpp | |
| parent | ef89ae016d8ad7bf51b3156cdba2c425923ada1d (diff) | |
| download | llvm-91a5848cab499b280bbab58b4896af4a20f826fc.zip llvm-91a5848cab499b280bbab58b4896af4a20f826fc.tar.gz llvm-91a5848cab499b280bbab58b4896af4a20f826fc.tar.bz2 | |
Allow TableGen DAG arguments to be just a name.
DAG arguments can optionally be named:
(dag node, node:$name)
With this change, the node is also optional:
(dag node, node:$name, $name)
The missing node is treated as an UnsetInit, so the above is equivalent
to:
(dag node, node:$name, ?:$name)
This syntax is useful in output patterns where we currently require the
types of variables to be repeated:
def : Pat<(subc i32:$b, i32:$c), (SUBCCrr i32:$b, i32:$c)>;
This is preferable:
def : Pat<(subc i32:$b, i32:$c), (SUBCCrr $b, $c)>;
llvm-svn: 177843
Diffstat (limited to 'llvm/utils/TableGen/CodeGenDAGPatterns.cpp')
0 files changed, 0 insertions, 0 deletions