llvm-svn: 51793

llvm-svn: 51792

llvm-svn: 51791

llvm-svn: 51790

llvm-svn: 51789

llvm-svn: 51788

types so that they end up the correct size.

llvm-svn: 51787

llvm-svn: 51786

this does is reconstruct the type for structs and arrays if the type 
wouldn't be compatible otherwise.

The assertion about packing in the struct type reconstruction code 
sucks, but I don't see any obvious way to fix it.  Maybe we need a general
utility method to take a list of types and alignments and try to construct an
unpacked type if possible?

llvm-svn: 51785

llvm-svn: 51784

associated declaration. This is a prerequisite to handling
general union initializations; for example, an array of unions involving 
pointers has to be turned into a struct because the elements can have 
incompatible types.

I refactored the code a bit to make it more readable; now, the logic for 
definitions is all in EmitGlobalVarInit.

The second parameter for GetAddrOfGlobalVar is now dead; I'll remove it 
separately.

By itself, this patch should not cause any visible changes.

llvm-svn: 51783

llvm-svn: 51782

llvm-svn: 51781

Preserve the register coallescer, and update live intervals more correctly by triggering a renumbering after phi elimination.

llvm-svn: 51780

required by the standard (the standard doesn't know anything about 
implicit casts).

Disallow pointers cast to non-integral arithmetic types as constant 
expressions.  This was previously allowed by accident. 

llvm-svn: 51779

llvm-svn: 51778

Since LCSSA switched over to DenseMap, we have to be more careful to avoid iterator invalidation.  Fixes PR2385.

llvm-svn: 51777

llvm-svn: 51775

Patch by Holger Schurig!

llvm-svn: 51774

Fix some strict-aliasing warnings by using Stmt* instead of Expr* in VariableArrayType, EnumConstantDecl, and VarDecl.

llvm-svn: 51772

once (ie, at two different places in the source, not two times on the
commandline).

llvm-svn: 51771

llvm-svn: 51770

of elements.

llvm-svn: 51769

essentially that we were destroying the declarations twice.

(Note that we don't use -serialize directly in the testsuite, only 
SerializeTest.)

llvm-svn: 51768

This fixes a crash on the included testcase (found in NetHack).

llvm-svn: 51767

insertvalue / extractvalue instructions.

llvm-svn: 51766

llvm-svn: 51765

llvm-svn: 51764

bit-field initialization; ugly code, X86-only, but it works, at least 
for basic stuff.  Separates/adds union initialization; currently disabled,
though, because the struct/array code needs modifications to support 
elements of the wrong type.

Fixes PR2381 and PR2309 with the bit-field initialization.  And NetHack 
compiles and appears to work with a few tweaks (to work around the lack 
of transparent_union support, and clang being a bit strict about
conflicting declarations).

llvm-svn: 51763

and union codepaths and fixes some minor bugs.

I'm reasonably confident this is accurate, at least for X86.  I'll 
correct any bugs as I find them; I haven't found any for a while, 
though.

llvm-svn: 51762

llvm-svn: 51761

llvm-svn: 51760

llvm-svn: 51759

llvm-svn: 51758

llvm-svn: 51757

llvm-svn: 51756

llvm-svn: 51755

It can be handy to have all information about options gathered in a single place
to provide an overview of all supported options. This patch allows the following:

def Options : OptionList<[
(switch_option "E", (help "Help string")),
(alias_option "quiet", "q")
...
]>;

Tool-specific option properties (like 'append_cmd') have (obviously) no meaning in
this context, so the only properties that are allowed are 'help' and 'required'.

See usage example in examples/Clang.td.

llvm-svn: 51754

llvm-svn: 51753

llvm-svn: 51752