llvm-svn: 93117

llvm-svn: 93114

simpler profitability predicate.

llvm-svn: 93111

llvm-svn: 93110

elimination of a sign extend to be a win, which simplifies 
the client of CanEvaluateSExtd, and allows us to eliminate
more casts (examples taken from real code).

llvm-svn: 93109

Document PFS argument to ParseValID() and ConvertGlobalOrMetadataValIDToValue().

llvm-svn: 93108

lshr+ashr instead of trunc+sext.  We want to avoid type 
conversions whenever possible, it is easier to codegen expressions
without truncates and extensions.

llvm-svn: 93107

llvm-svn: 93106

llvm-svn: 93105

llvm-svn: 93101

bits known clear in the result and don't care about the # casts 
eliminated.  TD is also dead but keeping it for now.

llvm-svn: 93098

1) don't try to optimize a sext or zext that is only used by a trunc, let
   the trunc get optimized first.  This avoids some pointless effort in
   some common cases since instcombine scans down a block in the first pass.
2) Change the cost model for zext elimination to consider an 'and' cheaper
   than a zext.  This allows us to do it more aggressively, and for the next
   patch to simplify the code quite a bit.

llvm-svn: 93097

more expressions to be promoted and casts eliminated.

llvm-svn: 93096

llvm-svn: 93095

nicer than passing around two const char*'s.

llvm-svn: 93094

llvm-svn: 93093

llvm-svn: 93092

llvm-svn: 93091

llvm-svn: 93090

commonIntCastTransforms into the callers, eliminating a switch,
and allowing the static predicate  methods to be moved down to
live next to the corresponding function.  No functionality 
change.

llvm-svn: 93089

llvm-svn: 93088

llvm-svn: 93087

-weak_reference_mismatches is not present, it is the default.

llvm-svn: 93086

llvm-svn: 93085

llvm-svn: 93084

import other headers within the same framework with the full
framework path, not with a relative include.

llvm-svn: 93083

llvm-svn: 93082

CallExpr/ObjCMessageExpr can be visited in an "lvalue" context if it
returns a struct temporary.  Currently the analyzer doesn't reason
about struct temporary returned by function calls, but we shouldn't
crash here either.

llvm-svn: 93081

llvm-svn: 93080

"In order to ease automatic bindings generation, it would be helpful if boolean values were distinguishable from integers. The attached patch introduces "typedef int LLVMBool;", and uses LLVMBool instead of int throughout the C API, wherever a boolean value is called for."

Patch by James Y Knight!

llvm-svn: 93079

llvm-svn: 93078

llvm-svn: 93077

llvm-svn: 93076

lvalue to poke, no functionality change.

llvm-svn: 93075

llvm-svn: 93074

rdar://7083878

llvm-svn: 93073

llvm-svn: 93072

llvm-svn: 93071

jump.  People clearly weren't finding the extra requirements in
CodeGenerator.html.

llvm-svn: 93070

llvm-svn: 93069