[PATCH] D149837: [clang][Interp] Fix ignoring CompoundLiteralExprs
Timm Bäder via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Tue Aug 1 02:48:29 PDT 2023
This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGc0a36a157d97: [clang][Interp] Fix ignoring CompoundLiteralExprs (authored by tbaeder).
Changed prior to commit:
https://reviews.llvm.org/D149837?vs=520153&id=545984#toc
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D149837/new/
https://reviews.llvm.org/D149837
Files:
clang/lib/AST/Interp/ByteCodeExprGen.cpp
clang/test/AST/Interp/literals.cpp
Index: clang/test/AST/Interp/literals.cpp
===================================================================
--- clang/test/AST/Interp/literals.cpp
+++ clang/test/AST/Interp/literals.cpp
@@ -897,9 +897,26 @@
1 ? 0 : 1;
__is_trivial(int);
+ (int){1};
+ (int[]){1,2,3};
+
return 0;
}
+ constexpr int oh_my(int x) {
+ (int){ x++ };
+ return x;
+ }
+ static_assert(oh_my(0) == 1, "");
+
+ constexpr int oh_my2(int x) {
+ int y{x++};
+ return x;
+ }
+
+ static_assert(oh_my2(0) == 1, "");
+
+
/// Ignored comma expressions still have their
/// expressions evaluated.
constexpr int Comma(int start) {
Index: clang/lib/AST/Interp/ByteCodeExprGen.cpp
===================================================================
--- clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -467,8 +467,13 @@
template <class Emitter>
bool ByteCodeExprGen<Emitter>::VisitInitListExpr(const InitListExpr *E) {
for (const Expr *Init : E->inits()) {
- if (!this->visit(Init))
- return false;
+ if (DiscardResult) {
+ if (!this->discard(Init))
+ return false;
+ } else {
+ if (!this->visit(Init))
+ return false;
+ }
}
return true;
}
@@ -944,12 +949,16 @@
// Otherwise, use a local variable.
if (T) {
// For primitive types, we just visit the initializer.
- return this->visit(Init);
+ return DiscardResult ? this->discard(Init) : this->visit(Init);
} else {
if (std::optional<unsigned> LocalIndex = allocateLocal(Init)) {
if (!this->emitGetPtrLocal(*LocalIndex, E))
return false;
- return this->visitInitializer(Init);
+ if (!this->visitInitializer(Init))
+ return false;
+ if (DiscardResult)
+ return this->emitPopPtr(E);
+ return true;
}
}
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