diff options
| author | Iain Buclaw <ibuclaw@gdcproject.org> | 2023-10-28 09:42:15 +0200 |
|---|---|---|
| committer | Iain Buclaw <ibuclaw@gdcproject.org> | 2023-10-28 09:53:36 +0200 |
| commit | 5d2a360f0a541646abb11efdbabc33c6a04de7ee (patch) | |
| tree | 30f899e4220039d70a9c244498b54dbc0cee7931 /gcc/expr.cc | |
| parent | 7f974c5fd4f59a9d8dd20c49a0e2909cb290f4b4 (diff) | |
| download | gcc-5d2a360f0a541646abb11efdbabc33c6a04de7ee.zip gcc-5d2a360f0a541646abb11efdbabc33c6a04de7ee.tar.gz gcc-5d2a360f0a541646abb11efdbabc33c6a04de7ee.tar.bz2 | |
d: Add warning for call expression without side effects
In the last merge of the dmd front-end with upstream (r14-4830), this
warning got removed from the semantic passes. Reimplement the warning
for the code generation pass instead, where it cannot have an effect on
conditional compilation.
gcc/d/ChangeLog:
* d-codegen.cc (call_side_effect_free_p): New function.
* d-tree.h (CALL_EXPR_WARN_IF_UNUSED): New macro.
(call_side_effect_free_p): New prototype.
* expr.cc (ExprVisitor::visit (CallExp *)): Set
CALL_EXPR_WARN_IF_UNUSED on matched call expressions.
(ExprVisitor::visit (NewExp *)): Don't dereference the result of an
allocation call here.
* toir.cc (add_stmt): Emit warning when call expression added to
statement list without being used.
gcc/testsuite/ChangeLog:
* gdc.dg/Wunused_value.d: New test.
Diffstat (limited to 'gcc/expr.cc')
0 files changed, 0 insertions, 0 deletions