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* [gcc r13-4433] c++: small contracts fixes
@ 2022-12-01 3:46 Jason Merrill
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From: Jason Merrill @ 2022-12-01 3:46 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:4304e09a1617bcf1c87f5bc96017ae5017379d75
commit r13-4433-g4304e09a1617bcf1c87f5bc96017ae5017379d75
Author: Jason Merrill <jason@redhat.com>
Date: Wed Nov 30 14:22:03 2022 -0500
c++: small contracts fixes
The first is an actual bug: remove_contract_attributes was only keeping one
attribute. The second just helps flow analysis in optimizers and static
analyzers.
gcc/cp/ChangeLog:
* contracts.cc (remove_contract_attributes): Actually prepend
to the list.
* pt.cc (tsubst_contract): Only look for a postcondition if type is
nonnull.
Diff:
---
gcc/cp/contracts.cc | 2 +-
gcc/cp/pt.cc | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/cp/contracts.cc b/gcc/cp/contracts.cc
index a9097016768..45f52b20392 100644
--- a/gcc/cp/contracts.cc
+++ b/gcc/cp/contracts.cc
@@ -869,7 +869,7 @@ remove_contract_attributes (tree fndecl)
tree list = NULL_TREE;
for (tree p = DECL_ATTRIBUTES (fndecl); p; p = TREE_CHAIN (p))
if (!cxx_contract_attribute_p (p))
- list = tree_cons (TREE_PURPOSE (p), TREE_VALUE (p), NULL_TREE);
+ list = tree_cons (TREE_PURPOSE (p), TREE_VALUE (p), list);
DECL_ATTRIBUTES (fndecl) = nreverse (list);
}
diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index 2d8e4fdd4b5..08de273a900 100644
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -11561,7 +11561,7 @@ tsubst_contract (tree decl, tree t, tree args, tsubst_flags_t complain,
tree r = copy_node (t);
/* Rebuild the result variable. */
- if (POSTCONDITION_P (t) && POSTCONDITION_IDENTIFIER (t))
+ if (type && POSTCONDITION_P (t) && POSTCONDITION_IDENTIFIER (t))
{
tree oldvar = POSTCONDITION_IDENTIFIER (t);
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