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| author | Richard Biener <rguenther@suse.de> | 2020-10-01 10:44:27 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2020-10-02 11:22:20 +0200 |
| commit | 0b945f959f03a6185a3130f30bfd524d01d4142c (patch) | |
| tree | c61ced9467e75d017f2ef2df083b466f5b345aeb /gcc/gimple.c | |
| parent | b6158faacbfb7d24a1d25b3774bc4338dd849480 (diff) | |
| download | gcc-0b945f959f03a6185a3130f30bfd524d01d4142c.zip gcc-0b945f959f03a6185a3130f30bfd524d01d4142c.tar.gz gcc-0b945f959f03a6185a3130f30bfd524d01d4142c.tar.bz2 | |
make use of CALL_FROM_NEW_OR_DELETE_P
This fixes points-to analysis and DCE to only consider new/delete
operator calls from new or delete expressions and not direct calls.
2020-10-01 Richard Biener <rguenther@suse.de>
* gimple.h (GF_CALL_FROM_NEW_OR_DELETE): New call flag.
(gimple_call_set_from_new_or_delete): New.
(gimple_call_from_new_or_delete): Likewise.
* gimple.c (gimple_build_call_from_tree): Set
GF_CALL_FROM_NEW_OR_DELETE appropriately.
* ipa-icf-gimple.c (func_checker::compare_gimple_call):
Compare gimple_call_from_new_or_delete.
* tree-ssa-dce.c (mark_all_reaching_defs_necessary_1): Make
sure to only consider new/delete calls from new or delete
expressions.
(propagate_necessity): Likewise.
(eliminate_unnecessary_stmts): Likewise.
* tree-ssa-structalias.c (find_func_aliases_for_call):
Likewise.
* g++.dg/tree-ssa/pta-delete-1.C: New testcase.
Diffstat (limited to 'gcc/gimple.c')
| -rw-r--r-- | gcc/gimple.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/gimple.c b/gcc/gimple.c index fd4e0fa..f07ddab 100644 --- a/gcc/gimple.c +++ b/gcc/gimple.c @@ -387,6 +387,10 @@ gimple_build_call_from_tree (tree t, tree fnptrtype) && fndecl_built_in_p (fndecl, BUILT_IN_NORMAL) && ALLOCA_FUNCTION_CODE_P (DECL_FUNCTION_CODE (fndecl))) gimple_call_set_alloca_for_var (call, CALL_ALLOCA_FOR_VAR_P (t)); + else if (fndecl + && (DECL_IS_OPERATOR_NEW_P (fndecl) + || DECL_IS_OPERATOR_DELETE_P (fndecl))) + gimple_call_set_from_new_or_delete (call, CALL_FROM_NEW_OR_DELETE_P (t)); else gimple_call_set_from_thunk (call, CALL_FROM_THUNK_P (t)); gimple_call_set_va_arg_pack (call, CALL_EXPR_VA_ARG_PACK (t)); |