[clang][bytecode] Create local scopes for if then/else statements #120852
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In case those aren't compound statements.
llvmbot
added
clang
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@llvm/pr-subscribers-clang Author: Timm Baeder (tbaederr) ChangesIn case those aren't compound statements. Full diff: https://github.com/llvm/llvm-project/pull/120852.diff 2 Files Affected:
diff --git a/clang/lib/AST/ByteCode/Compiler.cpp b/clang/lib/AST/ByteCode/Compiler.cpp
index 59c77f0ce78d2b..68c75b01e6f6df 100644
--- a/clang/lib/AST/ByteCode/Compiler.cpp
+++ b/clang/lib/AST/ByteCode/Compiler.cpp
@@ -4974,20 +4974,35 @@ template <class Emitter> bool Compiler<Emitter>::visitIfStmt(const IfStmt *IS) {
LabelTy LabelEnd = this->getLabel();
if (!this->jumpFalse(LabelElse))
return false;
- if (!visitStmt(IS->getThen()))
- return false;
+ {
+ LocalScope<Emitter> ThenScope(this);
+ if (!visitStmt(IS->getThen()))
+ return false;
+ if (!ThenScope.destroyLocals())
+ return false;
+ }
if (!this->jump(LabelEnd))
return false;
this->emitLabel(LabelElse);
- if (!visitStmt(Else))
- return false;
+ {
+ LocalScope<Emitter> ElseScope(this);
+ if (!visitStmt(Else))
+ return false;
+ if (!ElseScope.destroyLocals())
+ return false;
+ }
this->emitLabel(LabelEnd);
} else {
LabelTy LabelEnd = this->getLabel();
if (!this->jumpFalse(LabelEnd))
return false;
- if (!visitStmt(IS->getThen()))
- return false;
+ {
+ LocalScope<Emitter> ThenScope(this);
+ if (!visitStmt(IS->getThen()))
+ return false;
+ if (!ThenScope.destroyLocals())
+ return false;
+ }
this->emitLabel(LabelEnd);
}
diff --git a/clang/test/AST/ByteCode/if.cpp b/clang/test/AST/ByteCode/if.cpp
index 540cb76fbaac3c..c48b2b8d378c85 100644
--- a/clang/test/AST/ByteCode/if.cpp
+++ b/clang/test/AST/ByteCode/if.cpp
@@ -76,3 +76,30 @@ namespace IfScope {
}
static_assert(foo() == 13, "");
}
+
+namespace IfScope2 {
+ struct __bit_iterator {
+ unsigned __ctz_;
+ };
+ constexpr void __fill_n_bool(__bit_iterator) {}
+
+ constexpr void fill_n(__bit_iterator __first) {
+ if (false)
+ __fill_n_bool(__first);
+ else
+ __fill_n_bool(__first);
+ }
+
+ struct bitset{
+ constexpr void reset() {
+ auto m = __bit_iterator(8);
+ fill_n(m);
+ }
+ };
+ consteval bool foo() {
+ bitset v;
+ v.reset();
+ return true;
+ }
+ static_assert(foo());
+}
|
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/59/builds/10234 Here is the relevant piece of the build log for the reference |
qiaojbao
pushed a commit
to GPUOpen-Drivers/llvm-project
that referenced
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Feb 7, 2025
Local branch amd-gfx 4b60f60 Merged main:6c42d0d7df55 into amd-gfx:5fd03520a677 Remote branch main acb7dfa [clang][bytecode] Create local scopes for if then/else statements (llvm#120852)
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In case those aren't compound statements.