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-rw-r--r--clang/lib/Sema/SemaChecking.cpp1625
1 files changed, 809 insertions, 816 deletions
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index e18dd056e90..5530bd8fe76 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -772,409 +772,406 @@ static bool SemaBuiltinReserveRWPipe(Sema &S, CallExpr *Call) {
}
// Since return type of reserve_read/write_pipe built-in function is
- // reserve_id_t, which is not defined in the builtin def file , we used int
- // as return type and need to override the return type of these functions.
- Call->setType(S.Context.OCLReserveIDTy);
-
- return false;
-}
-
-// Performs a semantic analysis on {work_group_/sub_group_
-// /_}commit_{read/write}_pipe
-// \param S Reference to the semantic analyzer.
-// \param Call The call to the builtin function to be analyzed.
-// \return True if a semantic error was found, false otherwise.
-static bool SemaBuiltinCommitRWPipe(Sema &S, CallExpr *Call) {
- if (checkArgCount(S, Call, 2))
- return true;
-
- if (checkOpenCLPipeArg(S, Call))
- return true;
-
- // Check reserve_id_t.
- if (!Call->getArg(1)->getType()->isReserveIDT()) {
- S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_invalid_arg)
- << Call->getDirectCallee() << S.Context.OCLReserveIDTy
- << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange();
- return true;
- }
-
- return false;
-}
-
-// Performs a semantic analysis on the call to built-in Pipe
-// Query Functions.
-// \param S Reference to the semantic analyzer.
-// \param Call The call to the builtin function to be analyzed.
-// \return True if a semantic error was found, false otherwise.
-static bool SemaBuiltinPipePackets(Sema &S, CallExpr *Call) {
- if (checkArgCount(S, Call, 1))
- return true;
-
- if (!Call->getArg(0)->getType()->isPipeType()) {
- S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_first_arg)
- << Call->getDirectCallee() << Call->getArg(0)->getSourceRange();
- return true;
- }
-
- return false;
-}
-
-// OpenCL v2.0 s6.13.9 - Address space qualifier functions.
-// Performs semantic analysis for the to_global/local/private call.
-// \param S Reference to the semantic analyzer.
-// \param BuiltinID ID of the builtin function.
-// \param Call A pointer to the builtin call.
-// \return True if a semantic error has been found, false otherwise.
-static bool SemaOpenCLBuiltinToAddr(Sema &S, unsigned BuiltinID,
- CallExpr *Call) {
- if (Call->getNumArgs() != 1) {
- S.Diag(Call->getLocStart(), diag::err_opencl_builtin_to_addr_arg_num)
- << Call->getDirectCallee() << Call->getSourceRange();
- return true;
- }
-
- auto RT = Call->getArg(0)->getType();
- if (!RT->isPointerType() || RT->getPointeeType()
- .getAddressSpace() == LangAS::opencl_constant) {
- S.Diag(Call->getLocStart(), diag::err_opencl_builtin_to_addr_invalid_arg)
- << Call->getArg(0) << Call->getDirectCallee() << Call->getSourceRange();
- return true;
- }
-
- RT = RT->getPointeeType();
- auto Qual = RT.getQualifiers();
- switch (BuiltinID) {
- case Builtin::BIto_global:
- Qual.setAddressSpace(LangAS::opencl_global);
- break;
- case Builtin::BIto_local:
- Qual.setAddressSpace(LangAS::opencl_local);
- break;
- case Builtin::BIto_private:
- Qual.setAddressSpace(LangAS::opencl_private);
- break;
- default:
- llvm_unreachable("Invalid builtin function");
- }
- Call->setType(S.Context.getPointerType(S.Context.getQualifiedType(
- RT.getUnqualifiedType(), Qual)));
-
- return false;
-}
-
-// Emit an error and return true if the current architecture is not in the list
-// of supported architectures.
-static bool
-CheckBuiltinTargetSupport(Sema &S, unsigned BuiltinID, CallExpr *TheCall,
- ArrayRef<llvm::Triple::ArchType> SupportedArchs) {
- llvm::Triple::ArchType CurArch =
- S.getASTContext().getTargetInfo().getTriple().getArch();
- if (llvm::is_contained(SupportedArchs, CurArch))
- return false;
- S.Diag(TheCall->getLocStart(), diag::err_builtin_target_unsupported)
- << TheCall->getSourceRange();
- return true;
-}
-
-ExprResult
-Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl, unsigned BuiltinID,
- CallExpr *TheCall) {
- ExprResult TheCallResult(TheCall);
-
- // Find out if any arguments are required to be integer constant expressions.
- unsigned ICEArguments = 0;
- ASTContext::GetBuiltinTypeError Error;
- Context.GetBuiltinType(BuiltinID, Error, &ICEArguments);
- if (Error != ASTContext::GE_None)
- ICEArguments = 0; // Don't diagnose previously diagnosed errors.
-
- // If any arguments are required to be ICE's, check and diagnose.
- for (unsigned ArgNo = 0; ICEArguments != 0; ++ArgNo) {
- // Skip arguments not required to be ICE's.
- if ((ICEArguments & (1 << ArgNo)) == 0) continue;
-
- llvm::APSInt Result;
- if (SemaBuiltinConstantArg(TheCall, ArgNo, Result))
- return true;
- ICEArguments &= ~(1 << ArgNo);
- }
-
- switch (BuiltinID) {
- case Builtin::BI__builtin___CFStringMakeConstantString:
- assert(TheCall->getNumArgs() == 1 &&
- "Wrong # arguments to builtin CFStringMakeConstantString");
- if (CheckObjCString(TheCall->getArg(0)))
- return ExprError();
- break;
- case Builtin::BI__builtin_ms_va_start:
- case Builtin::BI__builtin_stdarg_start:
- case Builtin::BI__builtin_va_start:
- if (SemaBuiltinVAStart(BuiltinID, TheCall))
- return ExprError();
- break;
- case Builtin::BI__va_start: {
- switch (Context.getTargetInfo().getTriple().getArch()) {
- case llvm::Triple::arm:
- case llvm::Triple::thumb:
- if (SemaBuiltinVAStartARMMicrosoft(TheCall))
- return ExprError();
- break;
- default:
- if (SemaBuiltinVAStart(BuiltinID, TheCall))
- return ExprError();
- break;
- }
- break;
- }
-
- // The acquire, release, and no fence variants are ARM and AArch64 only.
- case Builtin::BI_interlockedbittestandset_acq:
- case Builtin::BI_interlockedbittestandset_rel:
- case Builtin::BI_interlockedbittestandset_nf:
- case Builtin::BI_interlockedbittestandreset_acq:
- case Builtin::BI_interlockedbittestandreset_rel:
- case Builtin::BI_interlockedbittestandreset_nf:
- if (CheckBuiltinTargetSupport(
- *this, BuiltinID, TheCall,
- {llvm::Triple::arm, llvm::Triple::thumb, llvm::Triple::aarch64}))
- return ExprError();
- break;
-
- // The 64-bit bittest variants are x64, ARM, and AArch64 only.
- case Builtin::BI_bittest64:
- case Builtin::BI_bittestandcomplement64:
- case Builtin::BI_bittestandreset64:
- case Builtin::BI_bittestandset64:
- case Builtin::BI_interlockedbittestandreset64:
- case Builtin::BI_interlockedbittestandset64:
- if (CheckBuiltinTargetSupport(*this, BuiltinID, TheCall,
- {llvm::Triple::x86_64, llvm::Triple::arm,
- llvm::Triple::thumb, llvm::Triple::aarch64}))
- return ExprError();
- break;
-
- case Builtin::BI__builtin_isgreater:
- case Builtin::BI__builtin_isgreaterequal:
- case Builtin::BI__builtin_isless:
- case Builtin::BI__builtin_islessequal:
- case Builtin::BI__builtin_islessgreater:
- case Builtin::BI__builtin_isunordered:
- if (SemaBuiltinUnorderedCompare(TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_fpclassify:
- if (SemaBuiltinFPClassification(TheCall, 6))
- return ExprError();
- break;
- case Builtin::BI__builtin_isfinite:
- case Builtin::BI__builtin_isinf:
- case Builtin::BI__builtin_isinf_sign:
- case Builtin::BI__builtin_isnan:
- case Builtin::BI__builtin_isnormal:
- case Builtin::BI__builtin_signbit:
- case Builtin::BI__builtin_signbitf:
- case Builtin::BI__builtin_signbitl:
- if (SemaBuiltinFPClassification(TheCall, 1))
- return ExprError();
- break;
- case Builtin::BI__builtin_shufflevector:
- return SemaBuiltinShuffleVector(TheCall);
- // TheCall will be freed by the smart pointer here, but that's fine, since
- // SemaBuiltinShuffleVector guts it, but then doesn't release it.
- case Builtin::BI__builtin_prefetch:
- if (SemaBuiltinPrefetch(TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_alloca_with_align:
- if (SemaBuiltinAllocaWithAlign(TheCall))
- return ExprError();
- break;
- case Builtin::BI__assume:
- case Builtin::BI__builtin_assume:
- if (SemaBuiltinAssume(TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_assume_aligned:
- if (SemaBuiltinAssumeAligned(TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_object_size:
- if (SemaBuiltinConstantArgRange(TheCall, 1, 0, 3))
- return ExprError();
- break;
- case Builtin::BI__builtin_longjmp:
- if (SemaBuiltinLongjmp(TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_setjmp:
- if (SemaBuiltinSetjmp(TheCall))
- return ExprError();
- break;
- case Builtin::BI_setjmp:
- case Builtin::BI_setjmpex:
- if (checkArgCount(*this, TheCall, 1))
- return true;
- break;
- case Builtin::BI__builtin_classify_type:
- if (checkArgCount(*this, TheCall, 1)) return true;
- TheCall->setType(Context.IntTy);
- break;
- case Builtin::BI__builtin_constant_p:
- if (checkArgCount(*this, TheCall, 1)) return true;
- TheCall->setType(Context.IntTy);
- break;
- case Builtin::BI__sync_fetch_and_add:
- case Builtin::BI__sync_fetch_and_add_1:
- case Builtin::BI__sync_fetch_and_add_2:
- case Builtin::BI__sync_fetch_and_add_4:
- case Builtin::BI__sync_fetch_and_add_8:
- case Builtin::BI__sync_fetch_and_add_16:
- case Builtin::BI__sync_fetch_and_sub:
- case Builtin::BI__sync_fetch_and_sub_1:
- case Builtin::BI__sync_fetch_and_sub_2:
- case Builtin::BI__sync_fetch_and_sub_4:
- case Builtin::BI__sync_fetch_and_sub_8:
- case Builtin::BI__sync_fetch_and_sub_16:
- case Builtin::BI__sync_fetch_and_or:
- case Builtin::BI__sync_fetch_and_or_1:
- case Builtin::BI__sync_fetch_and_or_2:
- case Builtin::BI__sync_fetch_and_or_4:
- case Builtin::BI__sync_fetch_and_or_8:
- case Builtin::BI__sync_fetch_and_or_16:
- case Builtin::BI__sync_fetch_and_and:
- case Builtin::BI__sync_fetch_and_and_1:
- case Builtin::BI__sync_fetch_and_and_2:
- case Builtin::BI__sync_fetch_and_and_4:
- case Builtin::BI__sync_fetch_and_and_8:
- case Builtin::BI__sync_fetch_and_and_16:
- case Builtin::BI__sync_fetch_and_xor:
- case Builtin::BI__sync_fetch_and_xor_1:
- case Builtin::BI__sync_fetch_and_xor_2:
- case Builtin::BI__sync_fetch_and_xor_4:
- case Builtin::BI__sync_fetch_and_xor_8:
- case Builtin::BI__sync_fetch_and_xor_16:
- case Builtin::BI__sync_fetch_and_nand:
- case Builtin::BI__sync_fetch_and_nand_1:
- case Builtin::BI__sync_fetch_and_nand_2:
- case Builtin::BI__sync_fetch_and_nand_4:
- case Builtin::BI__sync_fetch_and_nand_8:
- case Builtin::BI__sync_fetch_and_nand_16:
- case Builtin::BI__sync_add_and_fetch:
- case Builtin::BI__sync_add_and_fetch_1:
- case Builtin::BI__sync_add_and_fetch_2:
- case Builtin::BI__sync_add_and_fetch_4:
- case Builtin::BI__sync_add_and_fetch_8:
- case Builtin::BI__sync_add_and_fetch_16:
- case Builtin::BI__sync_sub_and_fetch:
- case Builtin::BI__sync_sub_and_fetch_1:
- case Builtin::BI__sync_sub_and_fetch_2:
- case Builtin::BI__sync_sub_and_fetch_4:
- case Builtin::BI__sync_sub_and_fetch_8:
- case Builtin::BI__sync_sub_and_fetch_16:
- case Builtin::BI__sync_and_and_fetch:
- case Builtin::BI__sync_and_and_fetch_1:
- case Builtin::BI__sync_and_and_fetch_2:
- case Builtin::BI__sync_and_and_fetch_4:
- case Builtin::BI__sync_and_and_fetch_8:
- case Builtin::BI__sync_and_and_fetch_16:
- case Builtin::BI__sync_or_and_fetch:
- case Builtin::BI__sync_or_and_fetch_1:
- case Builtin::BI__sync_or_and_fetch_2:
- case Builtin::BI__sync_or_and_fetch_4:
- case Builtin::BI__sync_or_and_fetch_8:
- case Builtin::BI__sync_or_and_fetch_16:
- case Builtin::BI__sync_xor_and_fetch:
- case Builtin::BI__sync_xor_and_fetch_1:
- case Builtin::BI__sync_xor_and_fetch_2:
- case Builtin::BI__sync_xor_and_fetch_4:
- case Builtin::BI__sync_xor_and_fetch_8:
- case Builtin::BI__sync_xor_and_fetch_16:
- case Builtin::BI__sync_nand_and_fetch:
- case Builtin::BI__sync_nand_and_fetch_1:
- case Builtin::BI__sync_nand_and_fetch_2:
- case Builtin::BI__sync_nand_and_fetch_4:
- case Builtin::BI__sync_nand_and_fetch_8:
- case Builtin::BI__sync_nand_and_fetch_16:
- case Builtin::BI__sync_val_compare_and_swap:
- case Builtin::BI__sync_val_compare_and_swap_1:
- case Builtin::BI__sync_val_compare_and_swap_2:
- case Builtin::BI__sync_val_compare_and_swap_4:
- case Builtin::BI__sync_val_compare_and_swap_8:
- case Builtin::BI__sync_val_compare_and_swap_16:
- case Builtin::BI__sync_bool_compare_and_swap:
- case Builtin::BI__sync_bool_compare_and_swap_1:
- case Builtin::BI__sync_bool_compare_and_swap_2:
- case Builtin::BI__sync_bool_compare_and_swap_4:
- case Builtin::BI__sync_bool_compare_and_swap_8:
- case Builtin::BI__sync_bool_compare_and_swap_16:
- case Builtin::BI__sync_lock_test_and_set:
- case Builtin::BI__sync_lock_test_and_set_1:
- case Builtin::BI__sync_lock_test_and_set_2:
- case Builtin::BI__sync_lock_test_and_set_4:
- case Builtin::BI__sync_lock_test_and_set_8:
- case Builtin::BI__sync_lock_test_and_set_16:
- case Builtin::BI__sync_lock_release:
- case Builtin::BI__sync_lock_release_1:
- case Builtin::BI__sync_lock_release_2:
- case Builtin::BI__sync_lock_release_4:
- case Builtin::BI__sync_lock_release_8:
- case Builtin::BI__sync_lock_release_16:
- case Builtin::BI__sync_swap:
- case Builtin::BI__sync_swap_1:
- case Builtin::BI__sync_swap_2:
- case Builtin::BI__sync_swap_4:
- case Builtin::BI__sync_swap_8:
- case Builtin::BI__sync_swap_16:
- return SemaBuiltinAtomicOverloaded(TheCallResult);
- case Builtin::BI__builtin_nontemporal_load:
- case Builtin::BI__builtin_nontemporal_store:
- return SemaBuiltinNontemporalOverloaded(TheCallResult);
-#define BUILTIN(ID, TYPE, ATTRS)
-#define ATOMIC_BUILTIN(ID, TYPE, ATTRS) \
- case Builtin::BI##ID: \
- return SemaAtomicOpsOverloaded(TheCallResult, AtomicExpr::AO##ID);
-#include "clang/Basic/Builtins.def"
- case Builtin::BI__annotation:
- if (SemaBuiltinMSVCAnnotation(*this, TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_annotation:
- if (SemaBuiltinAnnotation(*this, TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_addressof:
- if (SemaBuiltinAddressof(*this, TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_add_overflow:
- case Builtin::BI__builtin_sub_overflow:
- case Builtin::BI__builtin_mul_overflow:
- if (SemaBuiltinOverflow(*this, TheCall))
- return ExprError();
- break;
- case Builtin::BI__builtin_operator_new:
- case Builtin::BI__builtin_operator_delete: {
- bool IsDelete = BuiltinID == Builtin::BI__builtin_operator_delete;
- ExprResult Res =
- SemaBuiltinOperatorNewDeleteOverloaded(TheCallResult, IsDelete);
- if (Res.isInvalid())
- CorrectDelayedTyposInExpr(TheCallResult.get());
- return Res;
- }
- case Builtin::BI__builtin_dump_struct: {
- // We first want to ensure we are called with 2 arguments
- if (checkArgCount(*this, TheCall, 2))
- return ExprError();
- // Ensure that the first argument is of type 'struct XX *'
- const Expr *PtrArg = TheCall->getArg(0)->IgnoreParenImpCasts();
- const QualType PtrArgType = PtrArg->getType();
- if (!PtrArgType->isPointerType() ||
- !PtrArgType->getPointeeType()->isRecordType()) {
- Diag(PtrArg->getLocStart(), diag::err_typecheck_convert_incompatible)
- << PtrArgType << "structure pointer" << 1 << 0 << 3 << 1 << PtrArgType
- << "structure pointer";
- return ExprError();
+ // reserve_id_t, which is not defined in the builtin def file , we used int
+ // as return type and need to override the return type of these functions.
+ Call->setType(S.Context.OCLReserveIDTy);
+
+ return false;
+}
+
+// Performs a semantic analysis on {work_group_/sub_group_
+// /_}commit_{read/write}_pipe
+// \param S Reference to the semantic analyzer.
+// \param Call The call to the builtin function to be analyzed.
+// \return True if a semantic error was found, false otherwise.
+static bool SemaBuiltinCommitRWPipe(Sema &S, CallExpr *Call) {
+ if (checkArgCount(S, Call, 2))
+ return true;
+
+ if (checkOpenCLPipeArg(S, Call))
+ return true;
+
+ // Check reserve_id_t.
+ if (!Call->getArg(1)->getType()->isReserveIDT()) {
+ S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_invalid_arg)
+ << Call->getDirectCallee() << S.Context.OCLReserveIDTy
+ << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange();
+ return true;
+ }
+
+ return false;
+}
+
+// Performs a semantic analysis on the call to built-in Pipe
+// Query Functions.
+// \param S Reference to the semantic analyzer.
+// \param Call The call to the builtin function to be analyzed.
+// \return True if a semantic error was found, false otherwise.
+static bool SemaBuiltinPipePackets(Sema &S, CallExpr *Call) {
+ if (checkArgCount(S, Call, 1))
+ return true;
+
+ if (!Call->getArg(0)->getType()->isPipeType()) {
+ S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_first_arg)
+ << Call->getDirectCallee() << Call->getArg(0)->getSourceRange();
+ return true;
+ }
+
+ return false;
+}
+
+// OpenCL v2.0 s6.13.9 - Address space qualifier functions.
+// Performs semantic analysis for the to_global/local/private call.
+// \param S Reference to the semantic analyzer.
+// \param BuiltinID ID of the builtin function.
+// \param Call A pointer to the builtin call.
+// \return True if a semantic error has been found, false otherwise.
+static bool SemaOpenCLBuiltinToAddr(Sema &S, unsigned BuiltinID,
+ CallExpr *Call) {
+ if (Call->getNumArgs() != 1) {
+ S.Diag(Call->getLocStart(), diag::err_opencl_builtin_to_addr_arg_num)
+ << Call->getDirectCallee() << Call->getSourceRange();
+ return true;
+ }
+
+ auto RT = Call->getArg(0)->getType();
+ if (!RT->isPointerType() || RT->getPointeeType()
+ .getAddressSpace() == LangAS::opencl_constant) {
+ S.Diag(Call->getLocStart(), diag::err_opencl_builtin_to_addr_invalid_arg)
+ << Call->getArg(0) << Call->getDirectCallee() << Call->getSourceRange();
+ return true;
+ }
+
+ RT = RT->getPointeeType();
+ auto Qual = RT.getQualifiers();
+ switch (BuiltinID) {
+ case Builtin::BIto_global:
+ Qual.setAddressSpace(LangAS::opencl_global);
+ break;
+ case Builtin::BIto_local:
+ Qual.setAddressSpace(LangAS::opencl_local);
+ break;
+ case Builtin::BIto_private:
+ Qual.setAddressSpace(LangAS::opencl_private);
+ break;
+ default:
+ llvm_unreachable("Invalid builtin function");
+ }
+ Call->setType(S.Context.getPointerType(S.Context.getQualifiedType(
+ RT.getUnqualifiedType(), Qual)));
+
+ return false;
+}
+
+// Emit an error and return true if the current architecture is not in the list
+// of supported architectures.
+static bool
+CheckBuiltinTargetSupport(Sema &S, unsigned BuiltinID, CallExpr *TheCall,
+ ArrayRef<llvm::Triple::ArchType> SupportedArchs) {
+ llvm::Triple::ArchType CurArch =
+ S.getASTContext().getTargetInfo().getTriple().getArch();
+ if (llvm::is_contained(SupportedArchs, CurArch))
+ return false;
+ S.Diag(TheCall->getLocStart(), diag::err_builtin_target_unsupported)
+ << TheCall->getSourceRange();
+ return true;
+}
+
+ExprResult
+Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl, unsigned BuiltinID,
+ CallExpr *TheCall) {
+ ExprResult TheCallResult(TheCall);
+
+ // Find out if any arguments are required to be integer constant expressions.
+ unsigned ICEArguments = 0;
+ ASTContext::GetBuiltinTypeError Error;
+ Context.GetBuiltinType(BuiltinID, Error, &ICEArguments);
+ if (Error != ASTContext::GE_None)
+ ICEArguments = 0; // Don't diagnose previously diagnosed errors.
+
+ // If any arguments are required to be ICE's, check and diagnose.
+ for (unsigned ArgNo = 0; ICEArguments != 0; ++ArgNo) {
+ // Skip arguments not required to be ICE's.
+ if ((ICEArguments & (1 << ArgNo)) == 0) continue;
+
+ llvm::APSInt Result;
+ if (SemaBuiltinConstantArg(TheCall, ArgNo, Result))
+ return true;
+ ICEArguments &= ~(1 << ArgNo);
+ }
+
+ switch (BuiltinID) {
+ case Builtin::BI__builtin___CFStringMakeConstantString:
+ assert(TheCall->getNumArgs() == 1 &&
+ "Wrong # arguments to builtin CFStringMakeConstantString");
+ if (CheckObjCString(TheCall->getArg(0)))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_ms_va_start:
+ case Builtin::BI__builtin_stdarg_start:
+ case Builtin::BI__builtin_va_start:
+ if (SemaBuiltinVAStart(BuiltinID, TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__va_start: {
+ switch (Context.getTargetInfo().getTriple().getArch()) {
+ case llvm::Triple::arm:
+ case llvm::Triple::thumb:
+ if (SemaBuiltinVAStartARMMicrosoft(TheCall))
+ return ExprError();
+ break;
+ default:
+ if (SemaBuiltinVAStart(BuiltinID, TheCall))
+ return ExprError();
+ break;
+ }
+ break;
+ }
+
+ // The acquire, release, and no fence variants are ARM and AArch64 only.
+ case Builtin::BI_interlockedbittestandset_acq:
+ case Builtin::BI_interlockedbittestandset_rel:
+ case Builtin::BI_interlockedbittestandset_nf:
+ case Builtin::BI_interlockedbittestandreset_acq:
+ case Builtin::BI_interlockedbittestandreset_rel:
+ case Builtin::BI_interlockedbittestandreset_nf:
+ if (CheckBuiltinTargetSupport(
+ *this, BuiltinID, TheCall,
+ {llvm::Triple::arm, llvm::Triple::thumb, llvm::Triple::aarch64}))
+ return ExprError();
+ break;
+
+ // The 64-bit bittest variants are x64, ARM, and AArch64 only.
+ case Builtin::BI_bittest64:
+ case Builtin::BI_bittestandcomplement64:
+ case Builtin::BI_bittestandreset64:
+ case Builtin::BI_bittestandset64:
+ case Builtin::BI_interlockedbittestandreset64:
+ case Builtin::BI_interlockedbittestandset64:
+ if (CheckBuiltinTargetSupport(*this, BuiltinID, TheCall,
+ {llvm::Triple::x86_64, llvm::Triple::arm,
+ llvm::Triple::thumb, llvm::Triple::aarch64}))
+ return ExprError();
+ break;
+
+ case Builtin::BI__builtin_isgreater:
+ case Builtin::BI__builtin_isgreaterequal:
+ case Builtin::BI__builtin_isless:
+ case Builtin::BI__builtin_islessequal:
+ case Builtin::BI__builtin_islessgreater:
+ case Builtin::BI__builtin_isunordered:
+ if (SemaBuiltinUnorderedCompare(TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_fpclassify:
+ if (SemaBuiltinFPClassification(TheCall, 6))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_isfinite:
+ case Builtin::BI__builtin_isinf:
+ case Builtin::BI__builtin_isinf_sign:
+ case Builtin::BI__builtin_isnan:
+ case Builtin::BI__builtin_isnormal:
+ if (SemaBuiltinFPClassification(TheCall, 1))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_shufflevector:
+ return SemaBuiltinShuffleVector(TheCall);
+ // TheCall will be freed by the smart pointer here, but that's fine, since
+ // SemaBuiltinShuffleVector guts it, but then doesn't release it.
+ case Builtin::BI__builtin_prefetch:
+ if (SemaBuiltinPrefetch(TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_alloca_with_align:
+ if (SemaBuiltinAllocaWithAlign(TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__assume:
+ case Builtin::BI__builtin_assume:
+ if (SemaBuiltinAssume(TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_assume_aligned:
+ if (SemaBuiltinAssumeAligned(TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_object_size:
+ if (SemaBuiltinConstantArgRange(TheCall, 1, 0, 3))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_longjmp:
+ if (SemaBuiltinLongjmp(TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_setjmp:
+ if (SemaBuiltinSetjmp(TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI_setjmp:
+ case Builtin::BI_setjmpex:
+ if (checkArgCount(*this, TheCall, 1))
+ return true;
+ break;
+ case Builtin::BI__builtin_classify_type:
+ if (checkArgCount(*this, TheCall, 1)) return true;
+ TheCall->setType(Context.IntTy);
+ break;
+ case Builtin::BI__builtin_constant_p:
+ if (checkArgCount(*this, TheCall, 1)) return true;
+ TheCall->setType(Context.IntTy);
+ break;
+ case Builtin::BI__sync_fetch_and_add:
+ case Builtin::BI__sync_fetch_and_add_1:
+ case Builtin::BI__sync_fetch_and_add_2:
+ case Builtin::BI__sync_fetch_and_add_4:
+ case Builtin::BI__sync_fetch_and_add_8:
+ case Builtin::BI__sync_fetch_and_add_16:
+ case Builtin::BI__sync_fetch_and_sub:
+ case Builtin::BI__sync_fetch_and_sub_1:
+ case Builtin::BI__sync_fetch_and_sub_2:
+ case Builtin::BI__sync_fetch_and_sub_4:
+ case Builtin::BI__sync_fetch_and_sub_8:
+ case Builtin::BI__sync_fetch_and_sub_16:
+ case Builtin::BI__sync_fetch_and_or:
+ case Builtin::BI__sync_fetch_and_or_1:
+ case Builtin::BI__sync_fetch_and_or_2:
+ case Builtin::BI__sync_fetch_and_or_4:
+ case Builtin::BI__sync_fetch_and_or_8:
+ case Builtin::BI__sync_fetch_and_or_16:
+ case Builtin::BI__sync_fetch_and_and:
+ case Builtin::BI__sync_fetch_and_and_1:
+ case Builtin::BI__sync_fetch_and_and_2:
+ case Builtin::BI__sync_fetch_and_and_4:
+ case Builtin::BI__sync_fetch_and_and_8:
+ case Builtin::BI__sync_fetch_and_and_16:
+ case Builtin::BI__sync_fetch_and_xor:
+ case Builtin::BI__sync_fetch_and_xor_1:
+ case Builtin::BI__sync_fetch_and_xor_2:
+ case Builtin::BI__sync_fetch_and_xor_4:
+ case Builtin::BI__sync_fetch_and_xor_8:
+ case Builtin::BI__sync_fetch_and_xor_16:
+ case Builtin::BI__sync_fetch_and_nand:
+ case Builtin::BI__sync_fetch_and_nand_1:
+ case Builtin::BI__sync_fetch_and_nand_2:
+ case Builtin::BI__sync_fetch_and_nand_4:
+ case Builtin::BI__sync_fetch_and_nand_8:
+ case Builtin::BI__sync_fetch_and_nand_16:
+ case Builtin::BI__sync_add_and_fetch:
+ case Builtin::BI__sync_add_and_fetch_1:
+ case Builtin::BI__sync_add_and_fetch_2:
+ case Builtin::BI__sync_add_and_fetch_4:
+ case Builtin::BI__sync_add_and_fetch_8:
+ case Builtin::BI__sync_add_and_fetch_16:
+ case Builtin::BI__sync_sub_and_fetch:
+ case Builtin::BI__sync_sub_and_fetch_1:
+ case Builtin::BI__sync_sub_and_fetch_2:
+ case Builtin::BI__sync_sub_and_fetch_4:
+ case Builtin::BI__sync_sub_and_fetch_8:
+ case Builtin::BI__sync_sub_and_fetch_16:
+ case Builtin::BI__sync_and_and_fetch:
+ case Builtin::BI__sync_and_and_fetch_1:
+ case Builtin::BI__sync_and_and_fetch_2:
+ case Builtin::BI__sync_and_and_fetch_4:
+ case Builtin::BI__sync_and_and_fetch_8:
+ case Builtin::BI__sync_and_and_fetch_16:
+ case Builtin::BI__sync_or_and_fetch:
+ case Builtin::BI__sync_or_and_fetch_1:
+ case Builtin::BI__sync_or_and_fetch_2:
+ case Builtin::BI__sync_or_and_fetch_4:
+ case Builtin::BI__sync_or_and_fetch_8:
+ case Builtin::BI__sync_or_and_fetch_16:
+ case Builtin::BI__sync_xor_and_fetch:
+ case Builtin::BI__sync_xor_and_fetch_1:
+ case Builtin::BI__sync_xor_and_fetch_2:
+ case Builtin::BI__sync_xor_and_fetch_4:
+ case Builtin::BI__sync_xor_and_fetch_8:
+ case Builtin::BI__sync_xor_and_fetch_16:
+ case Builtin::BI__sync_nand_and_fetch:
+ case Builtin::BI__sync_nand_and_fetch_1:
+ case Builtin::BI__sync_nand_and_fetch_2:
+ case Builtin::BI__sync_nand_and_fetch_4:
+ case Builtin::BI__sync_nand_and_fetch_8:
+ case Builtin::BI__sync_nand_and_fetch_16:
+ case Builtin::BI__sync_val_compare_and_swap:
+ case Builtin::BI__sync_val_compare_and_swap_1:
+ case Builtin::BI__sync_val_compare_and_swap_2:
+ case Builtin::BI__sync_val_compare_and_swap_4:
+ case Builtin::BI__sync_val_compare_and_swap_8:
+ case Builtin::BI__sync_val_compare_and_swap_16:
+ case Builtin::BI__sync_bool_compare_and_swap:
+ case Builtin::BI__sync_bool_compare_and_swap_1:
+ case Builtin::BI__sync_bool_compare_and_swap_2:
+ case Builtin::BI__sync_bool_compare_and_swap_4:
+ case Builtin::BI__sync_bool_compare_and_swap_8:
+ case Builtin::BI__sync_bool_compare_and_swap_16:
+ case Builtin::BI__sync_lock_test_and_set:
+ case Builtin::BI__sync_lock_test_and_set_1:
+ case Builtin::BI__sync_lock_test_and_set_2:
+ case Builtin::BI__sync_lock_test_and_set_4:
+ case Builtin::BI__sync_lock_test_and_set_8:
+ case Builtin::BI__sync_lock_test_and_set_16:
+ case Builtin::BI__sync_lock_release:
+ case Builtin::BI__sync_lock_release_1:
+ case Builtin::BI__sync_lock_release_2:
+ case Builtin::BI__sync_lock_release_4:
+ case Builtin::BI__sync_lock_release_8:
+ case Builtin::BI__sync_lock_release_16:
+ case Builtin::BI__sync_swap:
+ case Builtin::BI__sync_swap_1:
+ case Builtin::BI__sync_swap_2:
+ case Builtin::BI__sync_swap_4:
+ case Builtin::BI__sync_swap_8:
+ case Builtin::BI__sync_swap_16:
+ return SemaBuiltinAtomicOverloaded(TheCallResult);
+ case Builtin::BI__builtin_nontemporal_load:
+ case Builtin::BI__builtin_nontemporal_store:
+ return SemaBuiltinNontemporalOverloaded(TheCallResult);
+#define BUILTIN(ID, TYPE, ATTRS)
+#define ATOMIC_BUILTIN(ID, TYPE, ATTRS) \
+ case Builtin::BI##ID: \
+ return SemaAtomicOpsOverloaded(TheCallResult, AtomicExpr::AO##ID);
+#include "clang/Basic/Builtins.def"
+ case Builtin::BI__annotation:
+ if (SemaBuiltinMSVCAnnotation(*this, TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_annotation:
+ if (SemaBuiltinAnnotation(*this, TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_addressof:
+ if (SemaBuiltinAddressof(*this, TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_add_overflow:
+ case Builtin::BI__builtin_sub_overflow:
+ case Builtin::BI__builtin_mul_overflow:
+ if (SemaBuiltinOverflow(*this, TheCall))
+ return ExprError();
+ break;
+ case Builtin::BI__builtin_operator_new:
+ case Builtin::BI__builtin_operator_delete: {
+ bool IsDelete = BuiltinID == Builtin::BI__builtin_operator_delete;
+ ExprResult Res =
+ SemaBuiltinOperatorNewDeleteOverloaded(TheCallResult, IsDelete);
+ if (Res.isInvalid())
+ CorrectDelayedTyposInExpr(TheCallResult.get());
+ return Res;
+ }
+ case Builtin::BI__builtin_dump_struct: {
+ // We first want to ensure we are called with 2 arguments
+ if (checkArgCount(*this, TheCall, 2))
+ return ExprError();
+ // Ensure that the first argument is of type 'struct XX *'
+ const Expr *PtrArg = TheCall->getArg(0)->IgnoreParenImpCasts();
+ const QualType PtrArgType = PtrArg->getType();
+ if (!PtrArgType->isPointerType() ||
+ !PtrArgType->getPointeeType()->isRecordType()) {
+ Diag(PtrArg->getLocStart(), diag::err_typecheck_convert_incompatible)
+ << PtrArgType << "structure pointer" << 1 << 0 << 3 << 1 << PtrArgType
+ << "structure pointer";
+ return ExprError();
}
// Ensure that the second argument is of type 'FunctionType'
@@ -4395,419 +4392,415 @@ static bool checkVAStartIsInVariadicFunction(Sema &S, Expr *Fn,
return false;
}
-/// Check the arguments to '__builtin_va_start' or '__builtin_ms_va_start'
-/// for validity. Emit an error and return true on failure; return false
-/// on success.
-bool Sema::SemaBuiltinVAStart(unsigned BuiltinID, CallExpr *TheCall) {
- Expr *Fn = TheCall->getCallee();
-
- if (checkVAStartABI(*this, BuiltinID, Fn))
- return true;
-
- if (TheCall->getNumArgs() > 2) {
- Diag(TheCall->getArg(2)->getLocStart(),
- diag::err_typecheck_call_too_many_args)
- << 0 /*function call*/ << 2 << TheCall->getNumArgs()
- << Fn->getSourceRange()
- << SourceRange(TheCall->getArg(2)->getLocStart(),
- (*(TheCall->arg_end()-1))->getLocEnd());
- return true;
- }
-
- if (TheCall->getNumArgs() < 2) {
- return Diag(TheCall->getLocEnd(),
- diag::err_typecheck_call_too_few_args_at_least)
- << 0 /*function call*/ << 2 << TheCall->getNumArgs();
- }
-
- // Type-check the first argument normally.
- if (checkBuiltinArgument(*this, TheCall, 0))
- return true;
-
- // Check that the current function is variadic, and get its last parameter.
- ParmVarDecl *LastParam;
- if (checkVAStartIsInVariadicFunction(*this, Fn, &LastParam))
- return true;
-
- // Verify that the second argument to the builtin is the last argument of the
- // current function or method.
- bool SecondArgIsLastNamedArgument = false;
- const Expr *Arg = TheCall->getArg(1)->IgnoreParenCasts();
-
- // These are valid if SecondArgIsLastNamedArgument is false after the next
- // block.
- QualType Type;
- SourceLocation ParamLoc;
- bool IsCRegister = false;
-
- if (const DeclRefExpr *DR = dyn_cast<DeclRefExpr>(Arg)) {
- if (const ParmVarDecl *PV = dyn_cast<ParmVarDecl>(DR->getDecl())) {
- SecondArgIsLastNamedArgument = PV == LastParam;
-
- Type = PV->getType();
- ParamLoc = PV->getLocation();
- IsCRegister =
- PV->getStorageClass() == SC_Register && !getLangOpts().CPlusPlus;
- }
- }
-
- if (!SecondArgIsLastNamedArgument)
- Diag(TheCall->getArg(1)->getLocStart(),
- diag::warn_second_arg_of_va_start_not_last_named_param);
- else if (IsCRegister || Type->isReferenceType() ||
- Type->isSpecificBuiltinType(BuiltinType::Float) || [=] {
- // Promotable integers are UB, but enumerations need a bit of
- // extra checking to see what their promotable type actually is.
- if (!Type->isPromotableIntegerType())
- return false;
- if (!Type->isEnumeralType())
- return true;
- const EnumDecl *ED = Type->getAs<EnumType>()->getDecl();
- return !(ED &&
- Context.typesAreCompatible(ED->getPromotionType(), Type));
- }()) {
- unsigned Reason = 0;
- if (Type->isReferenceType()) Reason = 1;
- else if (IsCRegister) Reason = 2;
- Diag(Arg->getLocStart(), diag::warn_va_start_type_is_undefined) << Reason;
- Diag(ParamLoc, diag::note_parameter_type) << Type;
- }
-
- TheCall->setType(Context.VoidTy);
- return false;
-}
-
-bool Sema::SemaBuiltinVAStartARMMicrosoft(CallExpr *Call) {
- // void __va_start(va_list *ap, const char *named_addr, size_t slot_size,
- // const char *named_addr);
-
- Expr *Func = Call->getCallee();
-
- if (Call->getNumArgs() < 3)
- return Diag(Call->getLocEnd(),
- diag::err_typecheck_call_too_few_args_at_least)
- << 0 /*function call*/ << 3 << Call->getNumArgs();
-
- // Type-check the first argument normally.
- if (checkBuiltinArgument(*this, Call, 0))
- return true;
-
- // Check that the current function is variadic.
- if (checkVAStartIsInVariadicFunction(*this, Func))
- return true;
-
- // __va_start on Windows does not validate the parameter qualifiers
-
- const Expr *Arg1 = Call->getArg(1)->IgnoreParens();
- const Type *Arg1Ty = Arg1->getType().getCanonicalType().getTypePtr();
-
- const Expr *Arg2 = Call->getArg(2)->IgnoreParens();
- const Type *Arg2Ty = Arg2->getType().getCanonicalType().getTypePtr();
-
- const QualType &ConstCharPtrTy =
- Context.getPointerType(Context.CharTy.withConst());
- if (!Arg1Ty->isPointerType() ||
- Arg1Ty->getPointeeType().withoutLocalFastQualifiers() != Context.CharTy)
- Diag(Arg1->getLocStart(), diag::err_typecheck_convert_incompatible)
- << Arg1->getType() << ConstCharPtrTy
- << 1 /* different class */
- << 0 /* qualifier difference */
- << 3 /* parameter mismatch */
- << 2 << Arg1->getType() << ConstCharPtrTy;
-
- const QualType SizeTy = Context.getSizeType();
- if (Arg2Ty->getCanonicalTypeInternal().withoutLocalFastQualifiers() != SizeTy)
- Diag(Arg2->getLocStart(), diag::err_typecheck_convert_incompatible)
- << Arg2->getType() << SizeTy
- << 1 /* different class */
- << 0 /* qualifier difference */
- << 3 /* parameter mismatch */
- << 3 << Arg2->getType() << SizeTy;
-
- return false;
-}
-
-/// SemaBuiltinUnorderedCompare - Handle functions like __builtin_isgreater and
-/// friends. This is declared to take (...), so we have to check everything.
-bool Sema::SemaBuiltinUnorderedCompare(CallExpr *TheCall) {
- if (TheCall->getNumArgs() < 2)
- return Diag(TheCall->getLocEnd(), diag::err_typecheck_call_too_few_args)
- << 0 << 2 << TheCall->getNumArgs()/*function call*/;
- if (TheCall->getNumArgs() > 2)
- return Diag(TheCall->getArg(2)->getLocStart(),
- diag::err_typecheck_call_too_many_args)
- << 0 /*function call*/ << 2 << TheCall->getNumArgs()
- << SourceRange(TheCall->getArg(2)->getLocStart(),
- (*(TheCall->arg_end()-1))->getLocEnd());
-
- ExprResult OrigArg0 = TheCall->getArg(0);
- ExprResult OrigArg1 = TheCall->getArg(1);
-
- // Do standard promotions between the two arguments, returning their common
- // type.
- QualType Res = UsualArithmeticConversions(OrigArg0, OrigArg1, false);
- if (OrigArg0.isInvalid() || OrigArg1.isInvalid())
- return true;
-
- // Make sure any conversions are pushed back into the call; this is
- // type safe since unordered compare builtins are declared as "_Bool
- // foo(...)".
- TheCall->setArg(0, OrigArg0.get());
- TheCall->setArg(1, OrigArg1.get());
-
- if (OrigArg0.get()->isTypeDependent() || OrigArg1.get()->isTypeDependent())
- return false;
-
- // If the common type isn't a real floating type, then the arguments were
- // invalid for this operation.
- if (Res.isNull() || !Res->isRealFloatingType())
- return Diag(OrigArg0.get()->getLocStart(),
- diag::err_typecheck_call_invalid_ordered_compare)
- << OrigArg0.get()->getType() << OrigArg1.get()->getType()
- << SourceRange(OrigArg0.get()->getLocStart(), OrigArg1.get()->getLocEnd());
-
- return false;
-}
-
-/// SemaBuiltinSemaBuiltinFPClassification - Handle functions like
-/// __builtin_isnan and friends. This is declared to take (...), so we have
-/// to check everything. We expect the last argument to be a floating point
-/// value.
-bool Sema::SemaBuiltinFPClassification(CallExpr *TheCall, unsigned NumArgs) {
- if (TheCall->getNumArgs() < NumArgs)
- return Diag(TheCall->getLocEnd(), diag::err_typecheck_call_too_few_args)
- << 0 << NumArgs << TheCall->getNumArgs()/*function call*/;
- if (TheCall->getNumArgs() > NumArgs)
- return Diag(TheCall->getArg(NumArgs)->getLocStart(),
- diag::err_typecheck_call_too_many_args)
- << 0 /*function call*/ << NumArgs << TheCall->getNumArgs()
- << SourceRange(TheCall->getArg(NumArgs)->getLocStart(),
- (*(TheCall->arg_end()-1))->getLocEnd());
-
- Expr *OrigArg = TheCall->getArg(NumArgs-1);
-
- if (OrigArg->isTypeDependent())
- return false;
-
- // This operation requires a non-_Complex floating-point number.
- if (!OrigArg->getType()->isRealFloatingType())
- return Diag(OrigArg->getLocStart(),
- diag::err_typecheck_call_invalid_unary_fp)
- << OrigArg->getType() << OrigArg->getSourceRange();
-
- // If this is an implicit conversion from float -> float, double, or
- // long double, remove it.
- if (ImplicitCastExpr *Cast = dyn_cast<ImplicitCastExpr>(OrigArg)) {
- // Only remove standard FloatCasts, leaving other casts inplace
- if (Cast->getCastKind() == CK_FloatingCast) {
- Expr *CastArg = Cast->getSubExpr();
- if (CastArg->getType()->isSpecificBuiltinType(BuiltinType::Float)) {
- assert(
- (Cast->getType()->isSpecificBuiltinType(BuiltinType::Double) ||
- Cast->getType()->isSpecificBuiltinType(BuiltinType::Float) ||
- Cast->getType()->isSpecificBuiltinType(BuiltinType::LongDouble)) &&
- "promotion from float to either float, double, or long double is "
- "the only expected cast here");
- Cast->setSubExpr(nullptr);
- TheCall->setArg(NumArgs-1, CastArg);
- }
- }
- }
-
- return false;
-}
-
-// Customized Sema Checking for VSX builtins that have the following signature:
-// vector [...] builtinName(vector [...], vector [...], const int);
-// Which takes the same type of vectors (any legal vector type) for the first
-// two arguments and takes compile time constant for the third argument.
-// Example builtins are :
-// vector double vec_xxpermdi(vector double, vector double, int);
-// vector short vec_xxsldwi(vector short, vector short, int);
-bool Sema::SemaBuiltinVSX(CallExpr *TheCall) {
- unsigned ExpectedNumArgs = 3;
- if (TheCall->getNumArgs() < ExpectedNumArgs)
- return Diag(TheCall->getLocEnd(),
- diag::err_typecheck_call_too_few_args_at_least)
- << 0 /*function call*/ << ExpectedNumArgs << TheCall->getNumArgs()
- << TheCall->getSourceRange();
-
- if (TheCall->getNumArgs() > ExpectedNumArgs)
- return Diag(TheCall->getLocEnd(),
- diag::err_typecheck_call_too_many_args_at_most)
- << 0 /*function call*/ << ExpectedNumArgs << TheCall->getNumArgs()
- << TheCall->getSourceRange();
-
- // Check the third argument is a compile time constant
- llvm::APSInt Value;
- if(!TheCall->getArg(2)->isIntegerConstantExpr(Value, Context))
- return Diag(TheCall->getLocStart(),
- diag::err_vsx_builtin_nonconstant_argument)
- << 3 /* argument index */ << TheCall->getDirectCallee()
- << SourceRange(TheCall->getArg(2)->getLocStart(),
- TheCall->getArg(2)->getLocEnd());
-
- QualType Arg1Ty = TheCall->getArg(0)->getType();
- QualType Arg2Ty = TheCall->getArg(1)->getType();
-
- // Check the type of argument 1 and argument 2 are vectors.
- SourceLocation BuiltinLoc = TheCall->getLocStart();
- if ((!Arg1Ty->isVectorType() && !Arg1Ty->isDependentType()) ||
- (!Arg2Ty->isVectorType() && !Arg2Ty->isDependentType())) {
- return Diag(BuiltinLoc, diag::err_vec_builtin_non_vector)
- << TheCall->getDirectCallee()
- << SourceRange(TheCall->getArg(0)->getLocStart(),
- TheCall->getArg(1)->getLocEnd());
- }
-
- // Check the first two arguments are the same type.
- if (!Context.hasSameUnqualifiedType(Arg1Ty, Arg2Ty)) {
- return Diag(BuiltinLoc, diag::err_vec_builtin_incompatible_vector)
- << TheCall->getDirectCallee()
- << SourceRange(TheCall->getArg(0)->getLocStart(),
- TheCall->getArg(1)->getLocEnd());
- }
-
- // When default clang type checking is turned off and the customized type
- // checking is used, the returning type of the function must be explicitly
- // set. Otherwise it is _Bool by default.
- TheCall->setType(Arg1Ty);
-
- return false;
-}
-
-/// SemaBuiltinShuffleVector - Handle __builtin_shufflevector.
-// This is declared to take (...), so we have to check everything.
-ExprResult Sema::SemaBuiltinShuffleVector(CallExpr *TheCall) {
- if (TheCall->getNumArgs() < 2)
- return ExprError(Diag(TheCall->getLocEnd(),
- diag::err_typecheck_call_too_few_args_at_least)
- << 0 /*function call*/ << 2 << TheCall->getNumArgs()
- << TheCall->getSourceRange());
-
- // Determine which of the following types of shufflevector we're checking:
- // 1) unary, vector mask: (lhs, mask)
- // 2) binary, scalar mask: (lhs, rhs, index, ..., index)
- QualType resType = TheCall->getArg(0)->getType();
- unsigned numElements = 0;
-
- if (!TheCall->getArg(0)->isTypeDependent() &&
- !TheCall->getArg(1)->isTypeDependent()) {
- QualType LHSType = TheCall->getArg(0)->getType();
- QualType RHSType = TheCall->getArg(1)->getType();
-
- if (!LHSType->isVectorType() || !RHSType->isVectorType())
- return ExprError(Diag(TheCall->getLocStart(),
- diag::err_vec_builtin_non_vector)
- << TheCall->getDirectCallee()
- << SourceRange(TheCall->getArg(0)->getLocStart(),
- TheCall->getArg(1)->getLocEnd()));
-
- numElements = LHSType->getAs<VectorType>()->getNumElements();
- unsigned numResElements = TheCall->getNumArgs() - 2;
-
- // Check to see if we have a call with 2 vector arguments, the unary shuffle
- // with mask. If so, verify that RHS is an integer vector type with the
- // same number of elts as lhs.
- if (TheCall->getNumArgs() == 2) {
- if (!RHSType->hasIntegerRepresentation() ||
- RHSType->getAs<VectorType>()->getNumElements() != numElements)
- return ExprError(Diag(TheCall->getLocStart(),
- diag::err_vec_builtin_incompatible_vector)
- << TheCall->getDirectCallee()
- << SourceRange(TheCall->getArg(1)->getLocStart(),
- TheCall->getArg(1)->getLocEnd()));
- } else if (!Context.hasSameUnqualifiedType(LHSType, RHSType)) {
- return ExprError(Diag(TheCall->getLocStart(),
- diag::err_vec_builtin_incompatible_vector)
- << TheCall->getDirectCallee()
- << SourceRange(TheCall->getArg(0)->getLocStart(),
- TheCall->getArg(1)->getLocEnd()));
- } else if (numElements != numResElements) {
- QualType eltType = LHSType->getAs<VectorType>()->getElementType();
- resType = Context.getVectorType(eltType, numResElements,
- VectorType::GenericVector);
- }
- }
-
- for (unsigned i = 2; i < TheCall->getNumArgs(); i++) {
- if (TheCall->getArg(i)->isTypeDependent() ||
- TheCall->getArg(i)->isValueDependent())
- continue;
-
- llvm::APSInt Result(32);
- if (!TheCall->getArg(i)->isIntegerConstantExpr(Result, Context))
- return ExprError(Diag(TheCall->getLocStart(),
- diag::err_shufflevector_nonconstant_argument)
- << TheCall->getArg(i)->getSourceRange());
-
- // Allow -1 which will be translated to undef in the IR.
- if (Result.isSigned() && Result.isAllOnesValue())
- continue;
-
- if (Result.getActiveBits() > 64 || Result.getZExtValue() >= numElements*2)
- return ExprError(Diag(TheCall->getLocStart(),
- diag::err_shufflevector_argument_too_large)
- << TheCall->getArg(i)->getSourceRange());
- }
-
- SmallVector<Expr*, 32> exprs;
-
- for (unsigned i = 0, e = TheCall->getNumArgs(); i != e; i++) {
- exprs.push_back(TheCall->getArg(i));
- TheCall->setArg(i, nullptr);
- }
-
- return new (Context) ShuffleVectorExpr(Context, exprs, resType,
- TheCall->getCallee()->getLocStart(),
- TheCall->getRParenLoc());
-}
-
-/// SemaConvertVectorExpr - Handle __builtin_convertvector
-ExprResult Sema::SemaConvertVectorExpr(Expr *E, TypeSourceInfo *TInfo,
- SourceLocation BuiltinLoc,
- SourceLocation RParenLoc) {
- ExprValueKind VK = VK_RValue;
- ExprObjectKind OK = OK_Ordinary;
- QualType DstTy = TInfo->getType();
- QualType SrcTy = E->getType();
-
- if (!SrcTy->isVectorType() && !SrcTy->isDependentType())
- return ExprError(Diag(BuiltinLoc,
- diag::err_convertvector_non_vector)
- << E->getSourceRange());
- if (!DstTy->isVectorType() && !DstTy->isDependentType())
- return ExprError(Diag(BuiltinLoc,
- diag::err_convertvector_non_vector_type));
-
- if (!SrcTy->isDependentType() && !DstTy->isDependentType()) {
- unsigned SrcElts = SrcTy->getAs<VectorType>()->getNumElements();
- unsigned DstElts = DstTy->getAs<VectorType>()->getNumElements();
- if (SrcElts != DstElts)
- return ExprError(Diag(BuiltinLoc,
- diag::err_convertvector_incompatible_vector)
- << E->getSourceRange());
- }
-
- return new (Context)
- ConvertVectorExpr(E, TInfo, DstTy, VK, OK, BuiltinLoc, RParenLoc);
-}
-
-/// SemaBuiltinPrefetch - Handle __builtin_prefetch.
-// This is declared to take (const void*, ...) and can take two
-// optional constant int args.
-bool Sema::SemaBuiltinPrefetch(CallExpr *TheCall) {
- unsigned NumArgs = TheCall->getNumArgs();
-
- if (NumArgs > 3)
- return Diag(TheCall->getLocEnd(),
- diag::err_typecheck_call_too_many_args_at_most)
- << 0 /*function call*/ << 3 << NumArgs
- << TheCall->getSourceRange();
-
- // Argument 0 is checked for us and the remaining arguments must be
- // constant integers.
- for (unsigned i = 1; i != NumArgs; ++i)
+/// Check the arguments to '__builtin_va_start' or '__builtin_ms_va_start'
+/// for validity. Emit an error and return true on failure; return false
+/// on success.
+bool Sema::SemaBuiltinVAStart(unsigned BuiltinID, CallExpr *TheCall) {
+ Expr *Fn = TheCall->getCallee();
+
+ if (checkVAStartABI(*this, BuiltinID, Fn))
+ return true;
+
+ if (TheCall->getNumArgs() > 2) {
+ Diag(TheCall->getArg(2)->getLocStart(),
+ diag::err_typecheck_call_too_many_args)
+ << 0 /*function call*/ << 2 << TheCall->getNumArgs()
+ << Fn->getSourceRange()
+ << SourceRange(TheCall->getArg(2)->getLocStart(),
+ (*(TheCall->arg_end()-1))->getLocEnd());
+ return true;
+ }
+
+ if (TheCall->getNumArgs() < 2) {
+ return Diag(TheCall->getLocEnd(),
+ diag::err_typecheck_call_too_few_args_at_least)
+ << 0 /*function call*/ << 2 << TheCall->getNumArgs();
+ }
+
+ // Type-check the first argument normally.
+ if (checkBuiltinArgument(*this, TheCall, 0))
+ return true;
+
+ // Check that the current function is variadic, and get its last parameter.
+ ParmVarDecl *LastParam;
+ if (checkVAStartIsInVariadicFunction(*this, Fn, &LastParam))
+ return true;
+
+ // Verify that the second argument to the builtin is the last argument of the
+ // current function or method.
+ bool SecondArgIsLastNamedArgument = false;
+ const Expr *Arg = TheCall->getArg(1)->IgnoreParenCasts();
+
+ // These are valid if SecondArgIsLastNamedArgument is false after the next
+ // block.
+ QualType Type;
+ SourceLocation ParamLoc;
+ bool IsCRegister = false;
+
+ if (const DeclRefExpr *DR = dyn_cast<DeclRefExpr>(Arg)) {
+ if (const ParmVarDecl *PV = dyn_cast<ParmVarDecl>(DR->getDecl())) {
+ SecondArgIsLastNamedArgument = PV == LastParam;
+
+ Type = PV->getType();
+ ParamLoc = PV->getLocation();
+ IsCRegister =
+ PV->getStorageClass() == SC_Register && !getLangOpts().CPlusPlus;
+ }
+ }
+
+ if (!SecondArgIsLastNamedArgument)
+ Diag(TheCall->getArg(1)->getLocStart(),
+ diag::warn_second_arg_of_va_start_not_last_named_param);
+ else if (IsCRegister || Type->isReferenceType() ||
+ Type->isSpecificBuiltinType(BuiltinType::Float) || [=] {
+ // Promotable integers are UB, but enumerations need a bit of
+ // extra checking to see what their promotable type actually is.
+ if (!Type->isPromotableIntegerType())
+ return false;
+ if (!Type->isEnumeralType())
+ return true;
+ const EnumDecl *ED = Type->getAs<EnumType>()->getDecl();
+ return !(ED &&
+ Context.typesAreCompatible(ED->getPromotionType(), Type));
+ }()) {
+ unsigned Reason = 0;
+ if (Type->isReferenceType()) Reason = 1;
+ else if (IsCRegister) Reason = 2;
+ Diag(Arg->getLocStart(), diag::warn_va_start_type_is_undefined) << Reason;
+ Diag(ParamLoc, diag::note_parameter_type) << Type;
+ }
+
+ TheCall->setType(Context.VoidTy);
+ return false;
+}
+
+bool Sema::SemaBuiltinVAStartARMMicrosoft(CallExpr *Call) {
+ // void __va_start(va_list *ap, const char *named_addr, size_t slot_size,
+ // const char *named_addr);
+
+ Expr *Func = Call->getCallee();
+
+ if (Call->getNumArgs() < 3)
+ return Diag(Call->getLocEnd(),
+ diag::err_typecheck_call_too_few_args_at_least)
+ << 0 /*function call*/ << 3 << Call->getNumArgs();
+
+ // Type-check the first argument normally.
+ if (checkBuiltinArgument(*this, Call, 0))
+ return true;
+
+ // Check that the current function is variadic.
+ if (checkVAStartIsInVariadicFunction(*this, Func))
+ return true;
+
+ // __va_start on Windows does not validate the parameter qualifiers
+
+ const Expr *Arg1 = Call->getArg(1)->IgnoreParens();
+ const Type *Arg1Ty = Arg1->getType().getCanonicalType().getTypePtr();
+
+ const Expr *Arg2 = Call->getArg(2)->IgnoreParens();
+ const Type *Arg2Ty = Arg2->getType().getCanonicalType().getTypePtr();
+
+ const QualType &ConstCharPtrTy =
+ Context.getPointerType(Context.CharTy.withConst());
+ if (!Arg1Ty->isPointerType() ||
+ Arg1Ty->getPointeeType().withoutLocalFastQualifiers() != Context.CharTy)
+ Diag(Arg1->getLocStart(), diag::err_typecheck_convert_incompatible)
+ << Arg1->getType() << ConstCharPtrTy
+ << 1 /* different class */
+ << 0 /* qualifier difference */
+ << 3 /* parameter mismatch */
+ << 2 << Arg1->getType() << ConstCharPtrTy;
+
+ const QualType SizeTy = Context.getSizeType();
+ if (Arg2Ty->getCanonicalTypeInternal().withoutLocalFastQualifiers() != SizeTy)
+ Diag(Arg2->getLocStart(), diag::err_typecheck_convert_incompatible)
+ << Arg2->getType() << SizeTy
+ << 1 /* different class */
+ << 0 /* qualifier difference */
+ << 3 /* parameter mismatch */
+ << 3 << Arg2->getType() << SizeTy;
+
+ return false;
+}
+
+/// SemaBuiltinUnorderedCompare - Handle functions like __builtin_isgreater and
+/// friends. This is declared to take (...), so we have to check everything.
+bool Sema::SemaBuiltinUnorderedCompare(CallExpr *TheCall) {
+ if (TheCall->getNumArgs() < 2)
+ return Diag(TheCall->getLocEnd(), diag::err_typecheck_call_too_few_args)
+ << 0 << 2 << TheCall->getNumArgs()/*function call*/;
+ if (TheCall->getNumArgs() > 2)
+ return Diag(TheCall->getArg(2)->getLocStart(),
+ diag::err_typecheck_call_too_many_args)
+ << 0 /*function call*/ << 2 << TheCall->getNumArgs()
+ << SourceRange(TheCall->getArg(2)->getLocStart(),
+ (*(TheCall->arg_end()-1))->getLocEnd());
+
+ ExprResult OrigArg0 = TheCall->getArg(0);
+ ExprResult OrigArg1 = TheCall->getArg(1);
+
+ // Do standard promotions between the two arguments, returning their common
+ // type.
+ QualType Res = UsualArithmeticConversions(OrigArg0, OrigArg1, false);
+ if (OrigArg0.isInvalid() || OrigArg1.isInvalid())
+ return true;
+
+ // Make sure any conversions are pushed back into the call; this is
+ // type safe since unordered compare builtins are declared as "_Bool
+ // foo(...)".
+ TheCall->setArg(0, OrigArg0.get());
+ TheCall->setArg(1, OrigArg1.get());
+
+ if (OrigArg0.get()->isTypeDependent() || OrigArg1.get()->isTypeDependent())
+ return false;
+
+ // If the common type isn't a real floating type, then the arguments were
+ // invalid for this operation.
+ if (Res.isNull() || !Res->isRealFloatingType())
+ return Diag(OrigArg0.get()->getLocStart(),
+ diag::err_typecheck_call_invalid_ordered_compare)
+ << OrigArg0.get()->getType() << OrigArg1.get()->getType()
+ << SourceRange(OrigArg0.get()->getLocStart(), OrigArg1.get()->getLocEnd());
+
+ return false;
+}
+
+/// SemaBuiltinSemaBuiltinFPClassification - Handle functions like
+/// __builtin_isnan and friends. This is declared to take (...), so we have
+/// to check everything. We expect the last argument to be a floating point
+/// value.
+bool Sema::SemaBuiltinFPClassification(CallExpr *TheCall, unsigned NumArgs) {
+ if (TheCall->getNumArgs() < NumArgs)
+ return Diag(TheCall->getLocEnd(), diag::err_typecheck_call_too_few_args)
+ << 0 << NumArgs << TheCall->getNumArgs()/*function call*/;
+ if (TheCall->getNumArgs() > NumArgs)
+ return Diag(TheCall->getArg(NumArgs)->getLocStart(),
+ diag::err_typecheck_call_too_many_args)
+ << 0 /*function call*/ << NumArgs << TheCall->getNumArgs()
+ << SourceRange(TheCall->getArg(NumArgs)->getLocStart(),
+ (*(TheCall->arg_end()-1))->getLocEnd());
+
+ Expr *OrigArg = TheCall->getArg(NumArgs-1);
+
+ if (OrigArg->isTypeDependent())
+ return false;
+
+ // This operation requires a non-_Complex floating-point number.
+ if (!OrigArg->getType()->isRealFloatingType())
+ return Diag(OrigArg->getLocStart(),
+ diag::err_typecheck_call_invalid_unary_fp)
+ << OrigArg->getType() << OrigArg->getSourceRange();
+
+ // If this is an implicit conversion from float -> float or double, remove it.
+ if (ImplicitCastExpr *Cast = dyn_cast<ImplicitCastExpr>(OrigArg)) {
+ // Only remove standard FloatCasts, leaving other casts inplace
+ if (Cast->getCastKind() == CK_FloatingCast) {
+ Expr *CastArg = Cast->getSubExpr();
+ if (CastArg->getType()->isSpecificBuiltinType(BuiltinType::Float)) {
+ assert((Cast->getType()->isSpecificBuiltinType(BuiltinType::Double) ||
+ Cast->getType()->isSpecificBuiltinType(BuiltinType::Float)) &&
+ "promotion from float to either float or double is the only expected cast here");
+ Cast->setSubExpr(nullptr);
+ TheCall->setArg(NumArgs-1, CastArg);
+ }
+ }
+ }
+
+ return false;
+}
+
+// Customized Sema Checking for VSX builtins that have the following signature:
+// vector [...] builtinName(vector [...], vector [...], const int);
+// Which takes the same type of vectors (any legal vector type) for the first
+// two arguments and takes compile time constant for the third argument.
+// Example builtins are :
+// vector double vec_xxpermdi(vector double, vector double, int);
+// vector short vec_xxsldwi(vector short, vector short, int);
+bool Sema::SemaBuiltinVSX(CallExpr *TheCall) {
+ unsigned ExpectedNumArgs = 3;
+ if (TheCall->getNumArgs() < ExpectedNumArgs)
+ return Diag(TheCall->getLocEnd(),
+ diag::err_typecheck_call_too_few_args_at_least)
+ << 0 /*function call*/ << ExpectedNumArgs << TheCall->getNumArgs()
+ << TheCall->getSourceRange();
+
+ if (TheCall->getNumArgs() > ExpectedNumArgs)
+ return Diag(TheCall->getLocEnd(),
+ diag::err_typecheck_call_too_many_args_at_most)
+ << 0 /*function call*/ << ExpectedNumArgs << TheCall->getNumArgs()
+ << TheCall->getSourceRange();
+
+ // Check the third argument is a compile time constant
+ llvm::APSInt Value;
+ if(!TheCall->getArg(2)->isIntegerConstantExpr(Value, Context))
+ return Diag(TheCall->getLocStart(),
+ diag::err_vsx_builtin_nonconstant_argument)
+ << 3 /* argument index */ << TheCall->getDirectCallee()
+ << SourceRange(TheCall->getArg(2)->getLocStart(),
+ TheCall->getArg(2)->getLocEnd());
+
+ QualType Arg1Ty = TheCall->getArg(0)->getType();
+ QualType Arg2Ty = TheCall->getArg(1)->getType();
+
+ // Check the type of argument 1 and argument 2 are vectors.
+ SourceLocation BuiltinLoc = TheCall->getLocStart();
+ if ((!Arg1Ty->isVectorType() && !Arg1Ty->isDependentType()) ||
+ (!Arg2Ty->isVectorType() && !Arg2Ty->isDependentType())) {
+ return Diag(BuiltinLoc, diag::err_vec_builtin_non_vector)
+ << TheCall->getDirectCallee()
+ << SourceRange(TheCall->getArg(0)->getLocStart(),
+ TheCall->getArg(1)->getLocEnd());
+ }
+
+ // Check the first two arguments are the same type.
+ if (!Context.hasSameUnqualifiedType(Arg1Ty, Arg2Ty)) {
+ return Diag(BuiltinLoc, diag::err_vec_builtin_incompatible_vector)
+ << TheCall->getDirectCallee()
+ << SourceRange(TheCall->getArg(0)->getLocStart(),
+ TheCall->getArg(1)->getLocEnd());
+ }
+
+ // When default clang type checking is turned off and the customized type
+ // checking is used, the returning type of the function must be explicitly
+ // set. Otherwise it is _Bool by default.
+ TheCall->setType(Arg1Ty);
+
+ return false;
+}
+
+/// SemaBuiltinShuffleVector - Handle __builtin_shufflevector.
+// This is declared to take (...), so we have to check everything.
+ExprResult Sema::SemaBuiltinShuffleVector(CallExpr *TheCall) {
+ if (TheCall->getNumArgs() < 2)
+ return ExprError(Diag(TheCall->getLocEnd(),
+ diag::err_typecheck_call_too_few_args_at_least)
+ << 0 /*function call*/ << 2 << TheCall->getNumArgs()
+ << TheCall->getSourceRange());
+
+ // Determine which of the following types of shufflevector we're checking:
+ // 1) unary, vector mask: (lhs, mask)
+ // 2) binary, scalar mask: (lhs, rhs, index, ..., index)
+ QualType resType = TheCall->getArg(0)->getType();
+ unsigned numElements = 0;
+
+ if (!TheCall->getArg(0)->isTypeDependent() &&
+ !TheCall->getArg(1)->isTypeDependent()) {
+ QualType LHSType = TheCall->getArg(0)->getType();
+ QualType RHSType = TheCall->getArg(1)->getType();
+
+ if (!LHSType->isVectorType() || !RHSType->isVectorType())
+ return ExprError(Diag(TheCall->getLocStart(),
+ diag::err_vec_builtin_non_vector)
+ << TheCall->getDirectCallee()
+ << SourceRange(TheCall->getArg(0)->getLocStart(),
+ TheCall->getArg(1)->getLocEnd()));
+
+ numElements = LHSType->getAs<VectorType>()->getNumElements();
+ unsigned numResElements = TheCall->getNumArgs() - 2;
+
+ // Check to see if we have a call with 2 vector arguments, the unary shuffle
+ // with mask. If so, verify that RHS is an integer vector type with the
+ // same number of elts as lhs.
+ if (TheCall->getNumArgs() == 2) {
+ if (!RHSType->hasIntegerRepresentation() ||
+ RHSType->getAs<VectorType>()->getNumElements() != numElements)
+ return ExprError(Diag(TheCall->getLocStart(),
+ diag::err_vec_builtin_incompatible_vector)
+ << TheCall->getDirectCallee()
+ << SourceRange(TheCall->getArg(1)->getLocStart(),
+ TheCall->getArg(1)->getLocEnd()));
+ } else if (!Context.hasSameUnqualifiedType(LHSType, RHSType)) {
+ return ExprError(Diag(TheCall->getLocStart(),
+ diag::err_vec_builtin_incompatible_vector)
+ << TheCall->getDirectCallee()
+ << SourceRange(TheCall->getArg(0)->getLocStart(),
+ TheCall->getArg(1)->getLocEnd()));
+ } else if (numElements != numResElements) {
+ QualType eltType = LHSType->getAs<VectorType>()->getElementType();
+ resType = Context.getVectorType(eltType, numResElements,
+ VectorType::GenericVector);
+ }
+ }
+
+ for (unsigned i = 2; i < TheCall->getNumArgs(); i++) {
+ if (TheCall->getArg(i)->isTypeDependent() ||
+ TheCall->getArg(i)->isValueDependent())
+ continue;
+
+ llvm::APSInt Result(32);
+ if (!TheCall->getArg(i)->isIntegerConstantExpr(Result, Context))
+ return ExprError(Diag(TheCall->getLocStart(),
+ diag::err_shufflevector_nonconstant_argument)
+ << TheCall->getArg(i)->getSourceRange());
+
+ // Allow -1 which will be translated to undef in the IR.
+ if (Result.isSigned() && Result.isAllOnesValue())
+ continue;
+
+ if (Result.getActiveBits() > 64 || Result.getZExtValue() >= numElements*2)
+ return ExprError(Diag(TheCall->getLocStart(),
+ diag::err_shufflevector_argument_too_large)
+ << TheCall->getArg(i)->getSourceRange());
+ }
+
+ SmallVector<Expr*, 32> exprs;
+
+ for (unsigned i = 0, e = TheCall->getNumArgs(); i != e; i++) {
+ exprs.push_back(TheCall->getArg(i));
+ TheCall->setArg(i, nullptr);
+ }
+
+ return new (Context) ShuffleVectorExpr(Context, exprs, resType,
+ TheCall->getCallee()->getLocStart(),
+ TheCall->getRParenLoc());
+}
+
+/// SemaConvertVectorExpr - Handle __builtin_convertvector
+ExprResult Sema::SemaConvertVectorExpr(Expr *E, TypeSourceInfo *TInfo,
+ SourceLocation BuiltinLoc,
+ SourceLocation RParenLoc) {
+ ExprValueKind VK = VK_RValue;
+ ExprObjectKind OK = OK_Ordinary;
+ QualType DstTy = TInfo->getType();
+ QualType SrcTy = E->getType();
+
+ if (!SrcTy->isVectorType() && !SrcTy->isDependentType())
+ return ExprError(Diag(BuiltinLoc,
+ diag::err_convertvector_non_vector)
+ << E->getSourceRange());
+ if (!DstTy->isVectorType() && !DstTy->isDependentType())
+ return ExprError(Diag(BuiltinLoc,
+ diag::err_convertvector_non_vector_type));
+
+ if (!SrcTy->isDependentType() && !DstTy->isDependentType()) {
+ unsigned SrcElts = SrcTy->getAs<VectorType>()->getNumElements();
+ unsigned DstElts = DstTy->getAs<VectorType>()->getNumElements();
+ if (SrcElts != DstElts)
+ return ExprError(Diag(BuiltinLoc,
+ diag::err_convertvector_incompatible_vector)
+ << E->getSourceRange());
+ }
+
+ return new (Context)
+ ConvertVectorExpr(E, TInfo, DstTy, VK, OK, BuiltinLoc, RParenLoc);
+}
+
+/// SemaBuiltinPrefetch - Handle __builtin_prefetch.
+// This is declared to take (const void*, ...) and can take two
+// optional constant int args.
+bool Sema::SemaBuiltinPrefetch(CallExpr *TheCall) {
+ unsigned NumArgs = TheCall->getNumArgs();
+
+ if (NumArgs > 3)
+ return Diag(TheCall->getLocEnd(),
+ diag::err_typecheck_call_too_many_args_at_most)
+ << 0 /*function call*/ << 3 << NumArgs
+ << TheCall->getSourceRange();
+
+ // Argument 0 is checked for us and the remaining arguments must be
+ // constant integers.
+ for (unsigned i = 1; i != NumArgs; ++i)
if (SemaBuiltinConstantArgRange(TheCall, i, 0, i == 1 ? 1 : 3))
return true;
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