From 708afb56c125ca4f7db7070e836860076c7eafbc Mon Sep 17 00:00:00 2001 From: Eric Fiselier Date: Thu, 16 May 2019 21:04:15 +0000 Subject: Implement __builtin_LINE() et. al. to support source location capture. Summary: This patch implements the source location builtins `__builtin_LINE(), `__builtin_FUNCTION()`, `__builtin_FILE()` and `__builtin_COLUMN()`. These builtins are needed to implement [`std::experimental::source_location`](https://rawgit.com/cplusplus/fundamentals-ts/v2/main.html#reflection.src_loc.creation). With the exception of `__builtin_COLUMN`, GCC also implements these builtins, and Clangs behavior is intended to match as closely as possible. Reviewers: rsmith, joerg, aaron.ballman, bogner, majnemer, shafik, martong Reviewed By: rsmith Subscribers: rnkovacs, loskutov, riccibruno, mgorny, kunitoki, alexr, majnemer, hfinkel, cfe-commits Differential Revision: https://reviews.llvm.org/D37035 llvm-svn: 360937 --- clang/lib/CodeGen/CGExprScalar.cpp | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'clang/lib/CodeGen/CGExprScalar.cpp') diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp index 777e1dc8938..62c4da0383c 100644 --- a/clang/lib/CodeGen/CGExprScalar.cpp +++ b/clang/lib/CodeGen/CGExprScalar.cpp @@ -16,6 +16,7 @@ #include "CGObjCRuntime.h" #include "CodeGenFunction.h" #include "CodeGenModule.h" +#include "ConstantEmitter.h" #include "TargetInfo.h" #include "clang/AST/ASTContext.h" #include "clang/AST/DeclObjC.h" @@ -640,12 +641,20 @@ public: Value *VisitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *E) { return EmitLoadOfLValue(E); } + Value *VisitSourceLocExpr(SourceLocExpr *SLE) { + auto &Ctx = CGF.getContext(); + APValue Evaluated = + SLE->EvaluateInContext(Ctx, CGF.CurSourceLocExprScope.getDefaultExpr()); + return ConstantEmitter(CGF.CGM, &CGF) + .emitAbstract(SLE->getLocation(), Evaluated, SLE->getType()); + } Value *VisitCXXDefaultArgExpr(CXXDefaultArgExpr *DAE) { + CodeGenFunction::CXXDefaultArgExprScope Scope(CGF, DAE); return Visit(DAE->getExpr()); } Value *VisitCXXDefaultInitExpr(CXXDefaultInitExpr *DIE) { - CodeGenFunction::CXXDefaultInitExprScope Scope(CGF); + CodeGenFunction::CXXDefaultInitExprScope Scope(CGF, DIE); return Visit(DIE->getExpr()); } Value *VisitCXXThisExpr(CXXThisExpr *TE) { -- cgit v1.2.3