Driver: Allow using clang as a precompiler, even if it is an
unsupported arch.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69322 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up the declaration-decoding step in the PCH reader, using the
same ueber-easy visitor scheme used for expressions/statements.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69320 91177308-0d34-0410-b5e6-96231b3b80d8

Prepare PCH reader and writer for (de-)serialization of statements. No
functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69319 91177308-0d34-0410-b5e6-96231b3b80d8

Removed a no longer needed FIXME comment.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69315 91177308-0d34-0410-b5e6-96231b3b80d8

Fix <rdar://problem/6765383> clang-6: clang does not appear to support declaring a static Block 'const'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69306 91177308-0d34-0410-b5e6-96231b3b80d8

Category method synbols must be qualified by gategory name to
match gcc's.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69305 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a crash bug when comparing overload quality of conversion operators with conversion constructors.
Remove an atrocious amount of trailing whitespace in the overloaded operator mangler. Sorry, couldn't help myself.
Change the DeclType parameter of Sema::CheckReferenceInit to be passed by value instead of reference. It wasn't changed anywhere.
Let the parser handle C++'s irregular grammar around assignment-expression and conditional-expression.
And finally, the reason for all this stuff: implement C++ semantics for the conditional operator. The implementation is complete except for determining lvalueness.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69299 91177308-0d34-0410-b5e6-96231b3b80d8

Attempt to fix a read-after-free running test/Sema/designated-initializers.c.

Douglas, can you check that this is doing the right thing?

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69298 91177308-0d34-0410-b5e6-96231b3b80d8

Force target triple for test depending on __weak.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69297 91177308-0d34-0410-b5e6-96231b3b80d8

When we create an implicit CXXTemporaryObjectExpr we don't need to check that it's a valid init. Instead, just set it as the VarDecl's initializer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69292 91177308-0d34-0410-b5e6-96231b3b80d8

Ensure that the most recent declaration of a tentative definition wins
when generating a common definition.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69287 91177308-0d34-0410-b5e6-96231b3b80d8

Pass -fdiagnostics-show-option to clang-cc by default.
 - <rdar://problem/6796848> implement -fdiagnostics-show-option

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69276 91177308-0d34-0410-b5e6-96231b3b80d8

other half of 69274

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69275 91177308-0d34-0410-b5e6-96231b3b80d8

split diagnostic group definitions out into their own file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69274 91177308-0d34-0410-b5e6-96231b3b80d8

optimize and comment GetDiagInfo.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69273 91177308-0d34-0410-b5e6-96231b3b80d8

merge several scattered tables into StaticDiagInfo.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69272 91177308-0d34-0410-b5e6-96231b3b80d8

Implement Diagnostic::getWarningOptionForDiag with information from tblgen,
this implements -fdiagnostics-show-option in clang-cc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69271 91177308-0d34-0410-b5e6-96231b3b80d8

tblgen is now passing diagnostic group information in the .inc file, ignore it everywhere.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69269 91177308-0d34-0410-b5e6-96231b3b80d8

implement framework for -fdiagnostics-show-option, but tblgen isn't
passing down the right info yet.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69268 91177308-0d34-0410-b5e6-96231b3b80d8

Disable the code I added before until I understand what's causing default2.cpp to fail.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69267 91177308-0d34-0410-b5e6-96231b3b80d8

move handling of -pedantic and -pedantic-errors into Diagnostics,
out of Warnings.cpp.  This simplifies warnings.cpp and makes it more
efficient.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69266 91177308-0d34-0410-b5e6-96231b3b80d8

arrange for -Wno-error=foo warnings to be immune to -Werror as
they are supposed to be.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69265 91177308-0d34-0410-b5e6-96231b3b80d8

change mappings to distinguish between "unset", "set by the user" and
"set to the default value".

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69264 91177308-0d34-0410-b5e6-96231b3b80d8

Driver: Remove the majority of -W* options, the driver doesn't
generally need to know about these now we don't have to hold
clang-cc's hand.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69263 91177308-0d34-0410-b5e6-96231b3b80d8

use getDiagnosticLevel instead of getDiagnosticMapping, which
is about to become private.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69262 91177308-0d34-0410-b5e6-96231b3b80d8

Driver: Forward -W* to clang, it can handle all these itself now.

Remove clang_W_Group and clang_ignored_W_Group.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69261 91177308-0d34-0410-b5e6-96231b3b80d8

switch DiagMappings *back* to 4 bits per diag.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69260 91177308-0d34-0410-b5e6-96231b3b80d8

implement -Wno-#warnings etc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69259 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate pch::TYPE_ATTR, which is never used

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69256 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for CompoundLiteralExpr. This is the last C expression
that does not require PCH support for statements. Only AddrLabelExpr,
StmtExpr, and BlockExpr remain (for C).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69255 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for InitListExpr, DesignatedInitExpr, and ImplicitValueInitExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69251 91177308-0d34-0410-b5e6-96231b3b80d8

when tblgen fills in all the subgroup info, clang is ready for it.
This depends on r69249 of llvm.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69250 91177308-0d34-0410-b5e6-96231b3b80d8

add scafolding to represent heirarchical warnings, start with -Wall.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69246 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for the __has_trivial_constructor type trait.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69245 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for ShuffleVectorExpr and BlockDeclRefExpr

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69244 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for TypesCompatibleExpr, ChooseExpr, and GNUNullExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69242 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for ExtVectorElementExpr and VAArgExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69240 91177308-0d34-0410-b5e6-96231b3b80d8

make unknown warnings a warning, not an error.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69239 91177308-0d34-0410-b5e6-96231b3b80d8

add anonymous groups for all the warning command line flags that the clang
driver accepts and discards.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69238 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for CompoundAssignOperator and ConditionalOperator

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69237 91177308-0d34-0410-b5e6-96231b3b80d8

add support for -Wextra and -W

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69236 91177308-0d34-0410-b5e6-96231b3b80d8

comment out IsGroup: tblgen isn't instantiating these dependent defs quite right yet.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69234 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for ImaginaryLiteral and ArraySubscriptExpr

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69233 91177308-0d34-0410-b5e6-96231b3b80d8

Fixup codegen for copy/dispose for block literals.  Radar 6791245

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69232 91177308-0d34-0410-b5e6-96231b3b80d8

Defer generation of tentative definitions.
 - PR3980.

 - <rdar://problem/6762287> [irgen] crash when generating tentative
   definition of incomplete structure

 - This also avoids creating common definitions for things which are
   later overwritten.

 - XFAIL'ed external-defs.c, it isn't completing types properly yet.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69231 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for ExtQualType

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69230 91177308-0d34-0410-b5e6-96231b3b80d8

Fix decl type merges when they have
__string/__weak attributes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69229 91177308-0d34-0410-b5e6-96231b3b80d8

Set DebugInfo at the beginning of GenerateBlockFunction().

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69228 91177308-0d34-0410-b5e6-96231b3b80d8

When declaring a variable that has a constructor and a direct initializer, for example:

struct X {
  X(int, int);
};

X x(10, 10);

we model that as

X x = X(10, 10);

inserting a temporary object expr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69227 91177308-0d34-0410-b5e6-96231b3b80d8

Add warning when a tentative array definition is assumed to have one element.
 - Also, fixed one to actually be one (instead of zero). :)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69226 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for declaration attributes

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69225 91177308-0d34-0410-b5e6-96231b3b80d8

Actually generate code for the simple constructors we know we can generate code for.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69222 91177308-0d34-0410-b5e6-96231b3b80d8

use tablgen-generated warning groups.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69221 91177308-0d34-0410-b5e6-96231b3b80d8

generate diagnostic group tables, this requires llvm r69219 or later.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69220 91177308-0d34-0410-b5e6-96231b3b80d8

fix a name shadowing problem in tblgen.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69218 91177308-0d34-0410-b5e6-96231b3b80d8

use slightly more verbose to work around a tblgen bug for now.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69214 91177308-0d34-0410-b5e6-96231b3b80d8

move clang specific makefile goop to clang instead of llvm.  This may require
updating the llvm tree.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69207 91177308-0d34-0410-b5e6-96231b3b80d8

Don't use \01 in symbol name if unnecessary.
 - This was particularly bad since I fixed one instance of this name
   and not another, meaning we got an LLVM module with the same
   effective name in two different globals!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69205 91177308-0d34-0410-b5e6-96231b3b80d8

Fix <rdar://problem/6786597> varargs not supported for Blocks under clang.

Teach Sema::SemaBuiltinVAStart() about blocks.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69201 91177308-0d34-0410-b5e6-96231b3b80d8

Patch to remove a bogus warning which pointed to underlying AST
gen. issue for property in continuation class declared readwrite
but which did not generate the declaration for the setter. Fix also
removed a FIXME and resulted in code cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69200 91177308-0d34-0410-b5e6-96231b3b80d8

Fix alignment on obj_msgrefs to match llvm-gcc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69199 91177308-0d34-0410-b5e6-96231b3b80d8

Add test case for superrefs section (and make spacing consistent).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69198 91177308-0d34-0410-b5e6-96231b3b80d8

fix some out of bounds array access problems, which manifest particularly
spectacularly when built for x86-64.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69197 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for the string literal of a FileScopeAsmDecl.
Some minor cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69196 91177308-0d34-0410-b5e6-96231b3b80d8

move some pp diags to the right .td file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69193 91177308-0d34-0410-b5e6-96231b3b80d8

annotate diagnostics with which groups they belong to.  Each
diagnostic can belong to at most one group.  Each group can
contain multiple diags, but we have nice syntax for the common
case of "1 diag to one group".

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69192 91177308-0d34-0410-b5e6-96231b3b80d8

For source location entries that describe instantiations, encode the
token length in the PCH file rather than trying (and failing) to
reconstruct it be getting the spelling token's length.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69191 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for MemberExpr and CallExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69186 91177308-0d34-0410-b5e6-96231b3b80d8

Fixup http://llvm.org/viewvc/llvm-project?rev=69165&view=rev (based on feedback from Eli).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69184 91177308-0d34-0410-b5e6-96231b3b80d8

now that we've decoupled diagnostic classes from default mappings,
move the remaining default mapping exceptions from C++ code into
the .td files.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69183 91177308-0d34-0410-b5e6-96231b3b80d8

move {'s

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69179 91177308-0d34-0410-b5e6-96231b3b80d8

Revert previous patch (will commit a fix soon).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69178 91177308-0d34-0410-b5e6-96231b3b80d8

Make diagnostic class explicit in the diag record instead of
implicit from its parenting.  Now that diag mapping is
explicit, eliminate the fatal and extwarn classes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69177 91177308-0d34-0410-b5e6-96231b3b80d8

Tblgen now passes the default mapping explicitly, instead of having it
be tied to the diag class.  This requires an LLVM tree update.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69175 91177308-0d34-0410-b5e6-96231b3b80d8

add a bunch of files.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69174 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for string literals

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69172 91177308-0d34-0410-b5e6-96231b3b80d8

Driver: Add --help-hidden

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69171 91177308-0d34-0410-b5e6-96231b3b80d8

__objc_superrefs belongs to __DATA segment.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69170 91177308-0d34-0410-b5e6-96231b3b80d8

PCH support for UnaryOperator, SizeOfAlignOfExpr

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69169 91177308-0d34-0410-b5e6-96231b3b80d8

Start attempting to generate code for C++ ctors.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69168 91177308-0d34-0410-b5e6-96231b3b80d8

Fix <rdar://problem/6789707> "warning: 'extern' variable has an initializer" not correct for __private_extern__.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69167 91177308-0d34-0410-b5e6-96231b3b80d8

rename variable in comment, not just in code :).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69166 91177308-0d34-0410-b5e6-96231b3b80d8

Fix <rdar://problem/6791490> [clang10 regression] [sema] invalid illegal jump diagnostic.

caused by: <rdar://problem/6252084> [sema] jumps into Obj-C exception blocks should be disallowed.

Sema::RecursiveCalcLabelScopes() and Sema::RecursiveCalcJumpScopes() need to pop the ScopeStack within the statement iteration loop (was outside the loop).

Eli, please review (thanks).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69165 91177308-0d34-0410-b5e6-96231b3b80d8

this should be private

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69158 91177308-0d34-0410-b5e6-96231b3b80d8

add another sanity check for -Werror=xx

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69157 91177308-0d34-0410-b5e6-96231b3b80d8

add a missing &&

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69156 91177308-0d34-0410-b5e6-96231b3b80d8

fix a broken test, that passed for the wrong reason.  Two wrongs make a right! :)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69155 91177308-0d34-0410-b5e6-96231b3b80d8

Rejigger how -pedantic and -pedantic-errors work and their interaction
with other diagnostic mapping.  In the new scheme, -Wfoo or -Wno-foo or
-Werror=foo all override the -pedantic options, and __extension__
robustly silences all extension diagnostics in their scope.

An added bonus of this change is that MAP_DEFAULT goes away, meaning that
per-diagnostic mapping information can now be stored in 2 bits, doubling
the density of the Diagnostic::DiagMapping array.  This also
substantially simplifies Diagnostic::getDiagnosticLevel.

OTOH, this temporarily introduces some "macro intensive" code in
Diagnostic.cpp.  This will be addressed in a later patch.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69154 91177308-0d34-0410-b5e6-96231b3b80d8

Implement support for designated initializers that refer to members of
anonymous structs or unions. Fixes PR3778.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69153 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for mangling C++ constructors. Review appreciated (I'm looking at you, Doug)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69150 91177308-0d34-0410-b5e6-96231b3b80d8

make default diagnostic mapping more explicit in .td file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69149 91177308-0d34-0410-b5e6-96231b3b80d8

remove some commented out -Wstrict-selector-match stuff.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69148 91177308-0d34-0410-b5e6-96231b3b80d8

Switch designated-initializer checking from using designator iterators
to using designator indices. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69147 91177308-0d34-0410-b5e6-96231b3b80d8

Don't tip-to around BitstreamReader::JumpToBit jumping to the end of the stream. LLVM has been updated to allow this

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69146 91177308-0d34-0410-b5e6-96231b3b80d8

clean up error messages.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69142 91177308-0d34-0410-b5e6-96231b3b80d8

add Diagnostic.td to proj

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69141 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for -Werror=foo and -Wno-error=foo

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69138 91177308-0d34-0410-b5e6-96231b3b80d8

Add CGCXX.h with ctor/dtor type enumerations. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69137 91177308-0d34-0410-b5e6-96231b3b80d8

refactor a bunch of the warning parsing stuff to simplify it.  This removes the
-Wfoo=ignore syntax.  GCC supports -Wno-foo, no need to invent our own stuff.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69136 91177308-0d34-0410-b5e6-96231b3b80d8

remove #include of system header, making this a) not apple specific, and
b) test dramatically faster.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69135 91177308-0d34-0410-b5e6-96231b3b80d8