Ensure that we copy KnownProperties before calling visitBasicBlock, else
we may leak properties into blocks where they don't belong.

llvm-svn: 30705

llvm-svn: 30704

llvm-svn: 30703

llvm-svn: 30702

Patch contributed by Kevin Sopp!

llvm-svn: 30701

Fix SwitchInst where dest-block is the same as one of the cases.

llvm-svn: 30700

optimize in more cases.

llvm-svn: 30699

llvm-svn: 30698

in a successor block for every block...resulting in some O(N^k) algorithm
which wasn't very good for performance. Calculating this information up
front and keeping it in a map made it much faster.

llvm-svn: 30697

The critical edge block dominates the dest block if the destblock dominates
all edges other than the one incoming from the critical edge.

llvm-svn: 30696

llvm-svn: 30695

llvm-svn: 30694

llvm-svn: 30693

initial support for returning 64bit floating point numbers

llvm-svn: 30692

llvm-svn: 30691

llvm-svn: 30690

llvm-svn: 30689

llvm-svn: 30688

llvm-svn: 30687

llvm-svn: 30686

llvm-svn: 30685

to unaliased allocations.  Use this information to disambiguate pointers loaded
from them.  This is a very common case, so it's worthwhile to handle efficiently.

This implements Analysis/GlobalsModRef/indirect-global.ll

llvm-svn: 30684

llvm-svn: 30683

the alignment when promoting allocations.  This implements
InstCombine/cast.ll:test32

llvm-svn: 30682

llvm-svn: 30681

llvm-svn: 30680

llvm-svn: 30679

llvm-svn: 30678

llvm-svn: 30677

llvm-svn: 30676

llvm-svn: 30675

llvm-svn: 30674

implement SINT_TO_FP

llvm-svn: 30673

override the optimization level.

llvm-svn: 30672

llvm-svn: 30671

llvm-svn: 30670

llvm-svn: 30669

llvm-svn: 30668

eliminate its static dtors, without having code that depends on order of
initialization.  Eliminate static ctors/dtors from Type.cpp.

llvm-svn: 30667

ConstantBool::getTrue() and ConstantBool::getFalse().

llvm-svn: 30666