Check if one of the two results unneeded so see if a simpler operator
could bs used. Also check to see if each of the two computations could be
simplified if they were split into separate operators. Factor out the code
that calls visit() so that it can be used for this purpose.
llvm-svn: 42759
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
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
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
(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
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
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
NamedDecl is a Decl that has an IdentifierInfo (for example, ScopedDecl),
but not ObjcMethodDecl.
Simplify some code in ActOnAddMethodsToObjcDecl, by doing the cast from
DeclTy to Decl at the start of the method.
llvm-svn: 42710
Dan Gohman