[PATCH] D158516: [clang][Interp] Only lazily visit constant globals
Timm Bäder via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Thu Oct 5 00:38:03 PDT 2023
This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG4d7f4a7c82cb: [clang][Interp] Only lazily visit constant globals (authored by tbaeder).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D158516/new/
https://reviews.llvm.org/D158516
Files:
clang/lib/AST/Interp/ByteCodeExprGen.cpp
clang/test/AST/Interp/c.c
Index: clang/test/AST/Interp/c.c
===================================================================
--- clang/test/AST/Interp/c.c
+++ clang/test/AST/Interp/c.c
@@ -14,11 +14,15 @@
// pedantic-expected-warning {{not an integer constant expression}}
_Static_assert(!!1, "");
-/// FIXME: Should also be rejected in the new interpreter
-int a = (1 == 1 ? 5 : 3);
+int a = (1 == 1 ? 5 : 3); // expected-note {{declared here}} \
+ // pedantic-expected-note {{declared here}}
_Static_assert(a == 5, ""); // ref-error {{not an integral constant expression}} \
// pedantic-ref-error {{not an integral constant expression}} \
- // pedantic-expected-warning {{not an integer constant expression}}
+ // expected-error {{not an integral constant expression}} \
+ // expected-note {{read of non-const variable}} \
+ // pedantic-expected-error {{not an integral constant expression}} \
+ // pedantic-expected-note {{read of non-const variable}}
+
const int b = 3;
_Static_assert(b == 3, ""); // pedantic-ref-warning {{not an integer constant expression}} \
Index: clang/lib/AST/Interp/ByteCodeExprGen.cpp
===================================================================
--- clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -2536,7 +2536,8 @@
// This happens in C.
if (!Ctx.getLangOpts().CPlusPlus) {
if (const auto *VD = dyn_cast<VarDecl>(D);
- VD && VD->hasGlobalStorage() && VD->getAnyInitializer()) {
+ VD && VD->hasGlobalStorage() && VD->getAnyInitializer() &&
+ VD->getType().isConstQualified()) {
if (!this->visitVarDecl(VD))
return false;
// Retry.
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