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path: root/lib/AST/APValue.cpp
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2013-01-29Don't crash while printing APValues that are lvalues casted to aDouglas Gregor
decidedly non-reference, non-pointer type. Fixes <rdar://problem/13090123>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173747 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort all of Clang's files under 'lib', and fix up the broken headersChandler Carruth
uncovered. This required manually correcting all of the incorrect main-module headers I could find, and running the new llvm/utils/sort_includes.py script over the files. I also manually added quite a few missing headers that were uncovered by shuffling the order or moving headers up to be main-module-headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-16Store SourceManager pointer on PrintingPolicy in the case where we're dumping,Richard Smith
and remove ASTContext reference (which was frequently bound to a dereferenced null pointer) from the recursive lump of printPretty functions. In so doing, fix (at least) one case where we intended to use the 'dump' mode, but that failed because a null ASTContext reference had been passed in. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162011 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-30Remove the ref/value inconsistency in filter_decl_iterator.David Blaikie
filter_decl_iterator had a weird mismatch where both op* and op-> returned T* making it difficult to generalize this filtering behavior into a reusable library of any kind. This change errs on the side of value, making op-> return T* and op* return T&. (reviewed by Richard Smith) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155808 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23Teach APValue printer to print boolean 0 and 1 as 'false' and 'true'. Fix upRichard Smith
some calling code to actually pass in a non-null type, to avoid a crash. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153358 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-10Assign APValues by swapping from a temporary. Removes a bunch of unnecessaryRichard Smith
copy-construction, which Daniel Dunbar reports as giving a 0.75% speedup on 403.gcc/combine.c. The performance differences on my constexpr torture tests are below the noise floor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152455 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-08[AST] APValue: Split the fast path of MakeUninit to be inline.Daniel Dunbar
- This change seems to be a tiny loss on 403.gcc/combine.c (.2%), but I think it is the right thing to do. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152330 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Implement DR1454. This allows all intermediate results in constant expressionsRichard Smith
to be core constant expressions (including pointers and references to temporaries), and makes constexpr calculations Turing-complete. A Turing machine simulator is included as a testcase. This opens up the possibilty of removing CCValue entirely, and removing some copies from the constant evaluator in the process, but that cleanup is not part of this change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150557 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-04Add an APValue representation for the difference between two ↵Eli Friedman
address-of-label expressions. Add support to Evaluate and CGExprConstant for generating/handling them. Remove the special-case for such differences in Expr::isConstantInitializer. With that done, remove a bunch of buggy code from CGExprConstant for handling scalar expressions which is no longer necessary. Fixes PR11705. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147561 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-16Add missing flush call. This is an attempt to fix a broken Windows buildbot.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146760 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-16C++11 constexpr: Add note stacks containing backtraces if constant evaluationRichard Smith
fails within a call to a constexpr function. Add -fconstexpr-backtrace-limit argument to driver and frontend, to control the maximum number of notes so produced (default 10). Fix APValue printing to be able to pretty-print all APValue types, and move the testing for this functionality from a unittest to a -verify test now that it's visible in clang's output. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146749 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-17Constant expression evaluation: add support for evaluation of member pointersRichard Smith
and base-to-derived casts, and add proper handling of temporaries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144926 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-12Represent an APValue based on a Decl as that Decl, rather than a DeclRefExprRichard Smith
or MemberExpr which refers to it. As a side-effect, MemberExprs which refer to static member functions and static data members are now emitted as constant expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144468 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-10Constant expression evaluation: support for evaluation of structs and unions ofRichard Smith
literal types, as well as derived-to-base casts for lvalues and derived-to-virtual-base casts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144265 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-07Constant expression evaluation: support for arrays.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143922 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-07Fix 32-bit build bots and remove some casting-away-const warnings.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143914 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-07Constant expression evaluation: preserve subobject designator when flattening aRichard Smith
core constant value down to an APValue. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143909 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-29constexpr function substitution:Richard Smith
Track the function invocation where an lvalue referring to a constexpr function parameter originated from, and use it to substitute the correct argument and to determine whether such an argument's lifetime has ended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143296 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23Fix missing includes for llvm_unreachableDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140368 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23Switch assert(0/false) llvm_unreachable.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140367 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18Define DiagnosticBuilder<<APValue so it's easy to include APValues inJeffrey Yasskin
diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135398 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Refactoring of constant expression evaluatorPeter Collingbourne
This introduces a generic base class for the expression evaluator classes, which handles a few common expression types which were previously handled separately in each class. Also, the expression evaluator now uses ConstStmtVisitor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131281 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19Fix -Wcast-qual warnings.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-15Convert the type of the LValue offset variable in APValue to CharUnits, movingKen Dyck
the LValue-related methods of APValue out of line to avoid header file leaching. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93512 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Remove tabs, and whitespace cleanups.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Make sure to access APValue's data via a char array (rather thanDouglas Gregor
through an array of void*), so that we don't run afoul of the strict-aliasing rules in C++ 3.10p15. Unfortunately, GCC 4.4 still complains about this code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81251 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10Remove some now-unneeded calls to llvm::errs().flush().Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66555 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-18Support evaluation of vector constant expressions, and codegen of same.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62455 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-18Add support for vectors to APValue. Vector constant evaluator and tests coming.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62438 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16add dump and print methods, add operator<< for APValue.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59411 91177308-0d34-0410-b5e6-96231b3b80d8