| commit | d4e6573ef525076b01036563be0056ea8f84a314 | |
| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Tue, 6 Dec 2016 22:31:25 +0000 (6 22:31 +0000) | ||
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Tue, 6 Dec 2016 22:31:25 +0000 (6 22:31 +0000) | ||
| tree | d29a67292ff3a155b5c23dfb0a6145f8ddbee486 | treesnapshot (tar.gz zip) |
| parent | f887f8314a0fe76c0667bde7d7ea811e24d66359 | commitdiff |
compiler: pass lvalue/rvalue context to back end for var exprs
Add a new flag on the Var_expression class that indicates
whether the var reference appears in an "lvalue" context
(for example, on the LHS of an assignment stmt) or an
"rvalue" context (for example, as an argument of a call).
Add a traversal pass that visits assignment stmt LHS subtrees
so as to mark things prior to backend gen. Select the right
context value in other places where Backend::var_expression is
called.
Reviewed-on: https://go-review.googlesource.com/33990
* go-gcc.cc (Gcc_backend::var_expression): Add Varexpr_context
parameter.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@243321 138bc75d-0d04-0410-961f-82ee72b054a4
Add a new flag on the Var_expression class that indicates
whether the var reference appears in an "lvalue" context
(for example, on the LHS of an assignment stmt) or an
"rvalue" context (for example, as an argument of a call).
Add a traversal pass that visits assignment stmt LHS subtrees
so as to mark things prior to backend gen. Select the right
context value in other places where Backend::var_expression is
called.
Reviewed-on: https://go-review.googlesource.com/33990
* go-gcc.cc (Gcc_backend::var_expression): Add Varexpr_context
parameter.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@243321 138bc75d-0d04-0410-961f-82ee72b054a4