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13 Commits

Author SHA1 Message Date
Richard Smith 715f7a1bd0 For DR712: store on a DeclRefExpr whether it constitutes an odr-use. 
Begin restructuring to support the forms of non-odr-use reference
permitted by DR712.

llvm-svn: 363086
 2019-06-11 17:50:32 +00:00
Roman Lebedev d55661db3c [Sema] Mark implicitly-inserted ICE's as being part of explicit cast (PR38166) 
Summary:
As discussed in [[ https://bugs.llvm.org/show_bug.cgi?id=38166 | PR38166 ]], we need to be able to distinqush whether the cast
we are visiting is actually a cast, or part of an `ExplicitCast`.
There are at least four ways to get there:
1. Introduce a new `CastKind`, and use it instead of `IntegralCast` if we are in `ExplicitCast`.

   Would work, but does not scale - what if we will need more of these cast kinds?
2. Introduce a flag in `CastExprBits`, whether this cast is part of `ExplicitCast` or not.

   Would work, but it isn't immediately clear where it needs to be set.
2. Fix `ScalarExprEmitter::VisitCastExpr()` to visit these `NoOp` casts.

   As pointed out by @rsmith, CodeGenFunction::EmitMaterializeTemporaryExpr calls

   skipRValueSubobjectAdjustments, which steps over the CK_NoOp cast`,

   which explains why we currently don't visit those.

   This is probably impossible, as @efriedma points out, that is intentional as per `[class.temporary]` in the standard
3. And the simplest one, just record which NoOp casts we skip.

   It just kinda works as-is afterwards.

But, the approach with a flag is the least intrusive one, and is probably the best one overall.

Reviewers: rsmith, rjmccall, majnemer, efriedma

Reviewed By: rsmith

Subscribers: cfe-commits, aaron.ballman, vsk, llvm-commits, rsmith

Differential Revision: https://reviews.llvm.org/D49508

llvm-svn: 337815
 2018-07-24 08:16:50 +00:00
Andy Gibbs c6e68daac0 Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive. 
llvm-svn: 166280
 2012-10-19 12:44:48 +00:00
Eli Friedman 21530f7c4e Fix abbreviation for CharacterLiteral in AST serialization. PR13806. 
llvm-svn: 163863
 2012-09-14 00:51:36 +00:00
Richard Smith 9ca5c42582 Update all tests other than Driver/std.cpp to use -std=c++11 rather than 
-std=c++0x. Patch by Ahmed Charles!

llvm-svn: 141900
 2011-10-13 22:29:44 +00:00
Anders Carlsson 6774b1f1c1 Add -fcxx-exceptions to all tests that use C++ exceptions. 
llvm-svn: 126599
 2011-02-28 00:40:07 +00:00
Anders Carlsson 479d6f51e3 Pass -fexceptions to all tests that use try/catch/throw. 
llvm-svn: 126037
 2011-02-19 19:23:03 +00:00
Argyrios Kyrtzidis 30d98f3d9e Fix broken de/serialization for a couple of C++ Exprs. 
llvm-svn: 106726
 2010-06-24 08:57:09 +00:00
Chris Lattner 13a5ecc6ff pch'ify typeid. 
llvm-svn: 103374
 2010-05-09 06:03:39 +00:00
Sam Weinig e83b3aca0b Roll r95513 back in. 
llvm-svn: 95515
 2010-02-07 06:32:43 +00:00
Sam Weinig e911058bb5 Roll out r95513, it seems to have broken self hosting. 
llvm-svn: 95514
 2010-02-07 05:26:25 +00:00
Sam Weinig db3758c40d Add PCH support for CXXBoolLiteralExpr and CXXNullPtrLiteralExpr. 
llvm-svn: 95513
 2010-02-07 04:44:10 +00:00
Sam Weinig d01101e2d7 Add PCH support for CXXStaticCastExpr, CXXDynamicCastExpr, CXXReinterpretCastExpr, CXXConstCastExpr and CXXFunctionalCastExpr. 
llvm-svn: 93658
 2010-01-16 21:21:01 +00:00