[clang][bytecode] Always return false for invalid bcp results #121467
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@llvm/pr-subscribers-clang Author: Timm Baeder (tbaederr) ChangesFull diff: https://github.com/llvm/llvm-project/pull/121467.diff 2 Files Affected:
diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp b/clang/lib/AST/ByteCode/InterpBuiltin.cpp
index b5849553d0bf53..731c9290993f12 100644
--- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp
+++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp
@@ -1544,9 +1544,10 @@ static bool interp__builtin_constant_p(InterpState &S, CodePtr OpPC,
if (Res.isInvalid()) {
C.cleanup();
Stk.clear();
+ return returnInt(false);
}
- if (!Res.isInvalid() && !Res.empty()) {
+ if (!Res.empty()) {
const APValue &LV = Res.toAPValue();
if (LV.isLValue()) {
APValue::LValueBase Base = LV.getLValueBase();
diff --git a/clang/test/AST/ByteCode/builtin-constant-p.cpp b/clang/test/AST/ByteCode/builtin-constant-p.cpp
index 0d222d1c962778..62899b60064c28 100644
--- a/clang/test/AST/ByteCode/builtin-constant-p.cpp
+++ b/clang/test/AST/ByteCode/builtin-constant-p.cpp
@@ -12,3 +12,9 @@ static_assert(__builtin_constant_p(I + 10.0), "");
static_assert(__builtin_constant_p(nullptr), "");
static_assert(__builtin_constant_p(&I), ""); // both-error {{failed due to requirement}}
static_assert(__builtin_constant_p((void)I), ""); // both-error {{failed due to requirement}}
+
+extern int z;
+constexpr int foo(int &a) {
+ return __builtin_constant_p(a);
+}
+static_assert(!foo(z));
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/52/builds/4927 Here is the relevant piece of the build log for the reference |
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