ExplodedNodeSet dstPreStmt;
getCheckerManager().runCheckersForPreStmt(dstPreStmt, Pred, CastE, *this);
- if (CastE->getCastKind() == CK_LValueToRValue) {
+ if (CastE->getCastKind() == CK_LValueToRValue ||
+ CastE->getCastKind() == CK_LValueToRValueBitCast) {
for (ExplodedNodeSet::iterator I = dstPreStmt.begin(), E = dstPreStmt.end();
I!=E; ++I) {
ExplodedNode *subExprNode = *I;
switch (CastE->getCastKind()) {
case CK_LValueToRValue:
+ case CK_LValueToRValueBitCast:
llvm_unreachable("LValueToRValue casts handled earlier.");
case CK_ToVoid:
continue;
case CK_Dependent:
case CK_ArrayToPointerDecay:
case CK_BitCast:
- case CK_LValueToRValueBitCast:
case CK_AddressSpaceConversion:
case CK_BooleanToSignedIntegral:
case CK_IntegralToPointer:
--- /dev/null
+// RUN: %clang_analyze_cc1 -triple x86_64-unknown-unknown -verify %s \
+// RUN: -analyzer-checker=core,debug.ExprInspection
+
+template <typename T> void clang_analyzer_dump(T);
+
+__attribute__((always_inline)) static inline constexpr unsigned int _castf32_u32(float __A) {
+ return __builtin_bit_cast(unsigned int, __A); // no-warning
+}
+
+void test(int i) {
+ _castf32_u32(42);
+
+ float f = 42;
+
+ // Loading from a floating point value results in unknown,
+ // which later materializes as a conjured value.
+ auto g = __builtin_bit_cast(unsigned int, f);
+ clang_analyzer_dump(g);
+ // expected-warning-re@-1 {{{{^conj_\$[0-9]+{unsigned int,}}}}
+
+ auto g2 = __builtin_bit_cast(unsigned int, 42.0f);
+ clang_analyzer_dump(g2);
+ // expected-warning-re@-1 {{{{^conj_\$[0-9]+{unsigned int,}}}}
+
+ auto g3 = __builtin_bit_cast(unsigned int, i);
+ clang_analyzer_dump(g3);
+ // expected-warning-re@-1 {{{{^reg_\$[0-9]+<int i>}}}}
+
+ auto g4 = __builtin_bit_cast(unsigned long, &i);
+ clang_analyzer_dump(g4);
+ // expected-warning@-1 {{&i [as 64 bit integer]}}
+}