llvm-svn: 42751

llvm-svn: 42750

optimization passes.

llvm-svn: 42749

llvm-svn: 42748

llvm-svn: 42747

llvm-svn: 42746

arbitrary range of bits embedded in the middle of another bignum.
This kind of operation is desirable in many cases of software
floating point, e.g. converting bignum integers to floating point
numbers of fixed precision (you want to extract the precision most
significant bits).

Elsewhere, add an assertion, and exit the shift functions early if
the shift count is zero.

llvm-svn: 42745

llvm-svn: 42744

Begin the process of allowing DomTree on MBB's.  Step One: template DomTreeNode by making it a typedef of a templated DomTreeNodeBase.

llvm-svn: 42743

llvm-svn: 42742

llvm-svn: 42741

the Objective Caml 'declare_*' functions to behave more or less like
getOrInsertFunction.

llvm-svn: 42740

llvm-svn: 42739

llvm-svn: 42738

llvm-svn: 42737

llvm-svn: 42736

llvm-svn: 42735

convertFromZeroExtendedInteger can be simplified as it doesn't need
to make a copy of the source bignum.

llvm-svn: 42734

It used to modify its argument in-place.

This interface is saner and the implementation more efficient.  It will
be needed for decimal->binary conversion.

llvm-svn: 42733

input.  APInt unfortunately zero-extends signed integers, so Dale
modified the function to expect zero-extended input.  Make this
assumption explicit in the function name.

llvm-svn: 42732

llvm-svn: 42731

llvm-svn: 42730

llvm-svn: 42729

llvm-svn: 42728

Now instead of IdentifierInfo knowing anything about MacroInfo,
only the preprocessor knows.  This makes MacroInfo truly private
to the Lex library (and its direct clients) instead of being 
accessed in the Basic library.

llvm-svn: 42727

llvm-svn: 42726

call to getMacroInfo to call it.

llvm-svn: 42725

llvm-svn: 42724

(because all bitfields now fit in 32 bits).  This shrinks the identifier
table for carbon.h from 1634428 to 1451424 bytes (12%) and has no impact 
on compile time.

llvm-svn: 42723

moves the MacroInfo pointer to a side hash table (which currently 
lives in IdentifierTable.cpp).  This removes a pointer from 
Identifier info, but doesn't shrink it, as it requires a new bit 
be added.  This strange approach with the 'hasmacro' bit is needed
to not lose preprocessor performance.

llvm-svn: 42722

This fixes strange assertions that just started triggering.

llvm-svn: 42721

llvm-svn: 42720

fit in 32-bits, shrinking IdentifierInfo by a word.

This shrinks the total size of the identifier pool from 
1817264 to 1634428 bytes (11%) on carbon.h.

llvm-svn: 42719

llvm-svn: 42718

llvm-svn: 42717

number of arguments now and does the right thing, but the nullary/unary
accessors are preserved as convenience functions.  This allows us to
slightly simplify clients.

llvm-svn: 42716

llvm-svn: 42715

llvm-svn: 42714

llvm-svn: 42713

llvm-svn: 42712