Reid Kleckner [Sat, 8 Jun 2013 17:28:56 +0000 (17:28 +0000)]
[Sema] Make FunctionType's TSI use unadjusted argument types
This helps preserve the type-as-written in the AST, which we need for
MSVC mangling. In particular, we need to preserve the types of array
parameters in function pointer types.
The essence of this change is:
- QualType ArgTy = Param->getType();
+ QualType ArgTy = Param->getTypeSourceInfo()->getType();
... followed by the adjustment in ActOnFunctionDeclarator().
Anna Zaks [Sat, 8 Jun 2013 00:29:24 +0000 (00:29 +0000)]
[analyzer; alternate edges] Fix the edge locations in presence of macros.
We drew the diagnostic edges to wrong statements in cases the note was on a macro.
The fix is simple, but seems to work just fine for a whole bunch of test cases (plist-macros.cpp).
Also, removes an unnecessary edge in edges-new.mm, when function signature starts with a macro.
Adrian Prantl [Sat, 8 Jun 2013 00:16:55 +0000 (00:16 +0000)]
Debug info: An if condition now creates a lexical scope of its own.
Two variables with the same name declared in two if conditions in the same
scope are no longer coalesced into one.
Adrian Prantl [Fri, 7 Jun 2013 22:29:12 +0000 (22:29 +0000)]
address some comments on r183474:
- factor the name construction part out from constructSetterName
- rename constructSetterName to the more appropriate constructSetterSelector
no functionality change intended.
rdar://problem/14035789
Fixed calculation of penalty when breaking tokens.
Summary:
Introduced two new style parameters: PenaltyBreakComment and
PenaltyBreakString. Add penalty for each character of a breakable token beyond
the column limit (this relates mainly to comments, as they are broken only on
whitespace). Tuned PenaltyBreakComment to prefer comment breaking over breaking
inside most binary expressions.
Fixed a bug that prevented *, & and && from being considered TT_BinaryOperator
in the presense of adjacent comments.
Richard Smith [Fri, 7 Jun 2013 02:33:37 +0000 (02:33 +0000)]
PR16243: Use CXXThisOverride during template instantiation, and fix up the
places which weren't setting it up properly. This allows us to get the right
cv-qualifiers for 'this' when it appears outside a method body in a class
template.
blocks: fixes an ast bug when block pointer variable
is evaluated in a condition expression and then
dereferenced to envoke the block. This is
pr15663 and I applied a slight variation of the
patch with a test case. (patch is from
Arthur O'Dwyer). Also // rdar://14085217
Tim Northover [Fri, 7 Jun 2013 00:04:50 +0000 (00:04 +0000)]
Diagnose malformed x86 inline asm using 'y' constraint.
X86's 'y' inline assembly constraint represents an MMX register, this change
prevents Clang from hitting an assertion when passed an incompatible type to
deal with.
Eli Friedman [Fri, 7 Jun 2013 00:04:31 +0000 (00:04 +0000)]
Perform dynamic alignment computations so that the data in TypeLocs is
correctly aligned. Not performing such computations led to misaligned loads,
which crash on some platforms and are generally bad on other platforms.
The implementation of TypeLocBuilder::pushImpl is rather messy; code using
TypeLocBuilder accidentally assumes that partial TypeLocs are
laid out like a complete TypeLoc. As a followup, I intend to work on
fixing the TypeLocBuilder API to avoid exposing partial TypeLocs; this should
substantially simplify the implemementation.
David Majnemer [Thu, 6 Jun 2013 23:43:20 +0000 (23:43 +0000)]
Implement DR7
Disallowing deriving from classes that have private virtual base classes
except in instances where the deriving class would be able to cast
itself to the private virtual base via a different derivation.
Jordan Rose [Thu, 6 Jun 2013 21:53:45 +0000 (21:53 +0000)]
[analyzer; new edges] Simplify edges in a C++11 for-range loop.
Previously our edges were completely broken here; now, the final result
is a very simple set of edges in most cases: one up to the "for" keyword
for context, and one into the body of the loop. This matches the behavior
for ObjC for-in loops.
In the AST, however, CXXForRangeStmts are handled very differently from
ObjCForCollectionStmts. Since they are specified in terms of equivalent
statements in the C++ standard, we actually have implicit AST nodes for
all of the semantic statements. This makes evaluation very easy, but
diagnostic locations a bit trickier. Fortunately, the problem can be
generally defined away by marking all of the implicit statements as
part of the top-level for-range statement.
One of the implicit statements in a for-range statement is the declaration
of implicit iterators __begin and __end. The CFG synthesizes two
separate DeclStmts to match each of these decls, but until now these
synthetic DeclStmts weren't in the function's ParentMap. Now, the CFG
keeps track of its synthetic statements, and the AnalysisDeclContext will
make sure to add them to the ParentMap.
Pavel Labath [Thu, 6 Jun 2013 11:52:19 +0000 (11:52 +0000)]
ClangTool: strip -o from the command line
Summary:
This patch creates a new ArgumentsAdjuster, which removes all -o parameters from
the command line. This adjuster is inserted by default into the ClangTool pipeline.
Richard Smith [Thu, 6 Jun 2013 11:41:05 +0000 (11:41 +0000)]
Implement DR1270: braces can be elided in all aggregate initialization, not
just copy-list-initialization in a variable declaration. This effectively
reverts r142147.
Hans Wennborg [Thu, 6 Jun 2013 09:16:36 +0000 (09:16 +0000)]
Disallow reinterpret_cast from pointer to bool on Windows
This became allowed by accident in r131201, but triggers an assert.
That patch added an exception to allow conversion from pointers to
narrow integral types for MSVC compatibility. However, a pointer can
already be converted to bool in a civilized manner; allowing conversion
via reinterpret_cast is a bad idea.
Daniel Jasper [Thu, 6 Jun 2013 09:11:58 +0000 (09:11 +0000)]
Fix clang-format's expression parser for leading }s.
The leading "}" in the construct "} else if (..) {" was confusing the
expression parser. Thus, no fake parentheses were generated and the
indentation was broken in some cases.
Richard Smith [Thu, 6 Jun 2013 08:19:16 +0000 (08:19 +0000)]
When a static storage duration temporary appears in a constant expression, it
must be initialized by a constant expression (not just a core constant
expression), because we're going to emit it as a global. Core issue for this is
pending.
Jordan Rose [Thu, 6 Jun 2013 01:57:24 +0000 (01:57 +0000)]
[analyzer] Look through ExprWithCleanups to see if an expr's consumed.
We based decisions during analysis and during path generation on whether
or not an expression is consumed, so if a top-level expression has
cleanups it's important for us to look through that.
Anna Zaks [Thu, 6 Jun 2013 00:19:36 +0000 (00:19 +0000)]
[analyzer] Fix a crash that occurs when processing an rvalue array.
When processing ArrayToPointerDecay, we expect the array to be a location, not a LazyCompoundVal.
Special case the rvalue arrays by using a location to represent them. This case is handled similarly
elsewhere in the code.
Jordan Rose [Thu, 6 Jun 2013 00:12:41 +0000 (00:12 +0000)]
[analyzer; new edges] Don't crash if the top-level entry edge is missing.
We previously asserted that there was a top-level function entry edge, but
if the function decl's location is invalid (or within a macro) this edge
might not exist. Change the assertion to an actual check, and don't drop
the first path piece if it doesn't match.
Jordan Rose [Thu, 6 Jun 2013 00:12:37 +0000 (00:12 +0000)]
[analyzer; new edges] Ignore self-edges, not all edges with the same location.
The edge optimizer needs to see edges for, say, implicit casts (which have
the same source location as their operand) to uniformly simplify the
entire path. However, we still don't want to produce edges from a statement
to /itself/, which could occur when two nodes in a row have the same
statement location.
This necessitated moving the check for redundant notes to after edge
optimization, since the check relies on notes being adjacent in the path.
If we're splitting the dwarf for fission and don't want to use the
integrated assembler then go ahead and still split the dwarf anyhow.
Add two tests, one to exercise existing behavior of not splitting
when we're just emitting assembly files and the other to test
that we split when we're not in integrated as mode.
David Blaikie [Wed, 5 Jun 2013 18:30:31 +0000 (18:30 +0000)]
PR14763: Debug info for non-trivial record parameters
There seems to have been some erroneous code attempting to describe the
ABI of parameters (non-trivial record parameters are passed by
reference). This would break the type of the function (especially when
it caused a mismatch between the type of a declaration & a definition)
causing PR14763 and PR14645.
Pavel Labath [Wed, 5 Jun 2013 16:23:30 +0000 (16:23 +0000)]
clang-check: Enable specification of additional compiler arguments
Summary:
This adds two command-line parameters: -extra-arg and -extra-arg-before, which
enable the user to pass additional parameters to the compiler command.
Reid Kleckner [Wed, 5 Jun 2013 15:58:29 +0000 (15:58 +0000)]
[ms-cxxabi] Fix vbptr offsets in memptrs when the vbptr is in an nvbase
Also addresses a review comment from John from on r180985 by removing
the "== -1" check, since it's now reusing the correct code which has the
comment.
Summary:
Detect if the file is valid UTF-8, and if this is the case, count code
points instead of just using number of bytes in all (hopefully) places, where
number of columns is needed. In particular, use the new
FormatToken.CodePointCount instead of TokenLength where appropriate.
Changed BreakableToken implementations to respect utf-8 character boundaries
when in utf-8 mode.
Recommit r183298+r183300 'Get rid of VTableContext::ComputeMethodVTableIndices() and VTableContext::getNumVirtualFunctionPointers()'
In r183298, I've used llvm::SmallPtrSet<..., 8> instead of llvm::SmallVector<..., 8> for NewVirtualFunctionsTy by mistake.
This only manifested when a class had more than 8 virtual functions, which wasn't covered by unit-tests
Make clang tools ignore -fcolor-diagnostics and -fdiagnostics-color retrieved from the compilation database.
Summary:
Clang tools' diagnostic output could be force colored when a command
line from the compilation database contains -fcolor-diagnostics or
-fdiagnostics-color. This is not what we want e.g. for vim integration.
Get rid of VTableContext::ComputeMethodVTableIndices() and VTableContext::getNumVirtualFunctionPointers(); also add some tests for the VTable indices output to make sure we don't regress
David Blaikie [Wed, 5 Jun 2013 05:32:23 +0000 (05:32 +0000)]
PR16214: Debug Info: -flimit-debug-info doesn't omit definitions for types used via typedefs
In an effort to make -flimit-debug-info more consistent I over-shot the
mark & made types used via typedefs never produce definitions in the
debug info (even if the type was used in a way that would require a
definition).
The fix for this is to do exactly what I was hoping to do at some point
- plumb the declaration/definition choice through the various layers of
"CreateType" in CGDebugInfo. In this way we can produce declarations
whenever they are sufficient & definitions otherwise - including when
qualifiers are used, for example (discovered in PR14467). This may not
be complete (there may be other types/situations where we need to
propagate the "declaration/definition" choice) but it lays the basic
foundation which we can enhance in future iterations.
This could actually be implemented with the LLVM IR va_arg instruction,
but it doesn't seem to offer any advantages over accessing the va_list
pointer directly.
Using the va_list pointer directly makes it possible to perform type
coercion directly from the argument array, and the va_list updates are
exposed to the optimizers.
Fix CoerceIntOrPtrToIntOrPtr on big-endian targets.
Type coercion for argument passing is equivalent to storing the source
type and loading the destination type from the same pointer. On
big-endian targets, this means that the high bits of integers are
preserved.
This patch fixes the CoerceIntOrPtrToIntOrPtr() function on big-endian
targets by inserting the required shift instructions to preserve the
high bits instead of the low bits.
This is used by SparcABIInfo when passing small structs in the high bits
of registers.
The 'inreg' attribute can also be applied to function return values in
LLVM IR. The SPARC v9 backend is using the flag when returning structs
containing 32-bit floats.
Richard Smith [Wed, 5 Jun 2013 00:46:14 +0000 (00:46 +0000)]
Model temporary lifetime-extension explicitly in the AST. Use this model to
handle temporaries which have been lifetime-extended to static storage duration
within constant expressions. This correctly handles nested lifetime extension
(through reference members of aggregates in aggregate initializers) but
non-constant-expression emission hasn't yet been updated to do the same.
Summary:
There's Lexer::getBufferStart(), and we need getBufferEnd() to access
the whole input buffer in clang::format::reformat. We don't want to
rely on the fact that the Lexer::BufferEnd always points to '\0', as there can
be embedded '\0's as well.
Fix linkage computation for local types in template functions.
Template functions (and member functions of class templates) present the same
problem as inline functions. They need to be uniqued, so we need to assign
VisibleNoLinkage linkage to types defined in them.
projects / clang / log