Author: Timm Bäder Date: 2024-04-29T16:33:21+02:00 New Revision: 45bd85e4815254a4528cc337447fd6a8eb6fd583
URL: https://github.com/llvm/llvm-project/commit/45bd85e4815254a4528cc337447fd6a8eb6fd583 DIFF: https://github.com/llvm/llvm-project/commit/45bd85e4815254a4528cc337447fd6a8eb6fd583.diff LOG: [clang][Interp] Fix casting function pointers to integers Added: Modified: clang/lib/AST/Interp/ByteCodeExprGen.cpp clang/test/AST/Interp/c.c Removed: ################################################################################ diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp index accaea0a84424c..3ceccfdebfca66 100644 --- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp +++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp @@ -212,6 +212,13 @@ bool ByteCodeExprGen<Emitter>::VisitCastExpr(const CastExpr *CE) { if (!this->visit(SubExpr)) return false; + // If SubExpr doesn't result in a pointer, make it one. + if (PrimType FromT = classifyPrim(SubExpr->getType()); FromT != PT_Ptr) { + assert(isPtrType(FromT)); + if (!this->emitDecayPtr(FromT, PT_Ptr, CE)) + return false; + } + PrimType T = classifyPrim(CE->getType()); if (T == PT_IntAP) return this->emitCastPointerIntegralAP(Ctx.getBitWidth(CE->getType()), diff --git a/clang/test/AST/Interp/c.c b/clang/test/AST/Interp/c.c index a5951158ed0e0d..207da5fe812608 100644 --- a/clang/test/AST/Interp/c.c +++ b/clang/test/AST/Interp/c.c @@ -263,3 +263,10 @@ const int *p = &b; const __int128 K = (__int128)(int*)0; const unsigned __int128 KU = (unsigned __int128)(int*)0; #endif + + +int test3(void) { + int a[2]; + a[0] = test3; // all-error {{incompatible pointer to integer conversion assigning to 'int' from 'int (void)'}} + return 0; +} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
