llvm-svn: 28110

scheduler can go into a "vertical mode" (i.e. traversing up the two-address
chain, etc.) when the register pressure is low.
This does seem to reduce the number of spills in the cases I've looked at. But
with x86, it's no guarantee the performance of the code improves.
It can be turned on with -sched-vertically option.

llvm-svn: 28108

llvm-svn: 28107

llvm-svn: 28106

llvm-svn: 28105

llvm-svn: 28104

llvm-svn: 28103

llvm-svn: 28102

llvm-svn: 28101

llvm-svn: 28100

llvm-svn: 28099

thing that can be in it.  Remove a dead method.

llvm-svn: 28098

Loading and storing off R0 isn't what we wanted.  Also, taking some CR's out of
CRRC seems to cause failures as well.  Further investigation is required.

llvm-svn: 28097

llvm-svn: 28096

llvm-svn: 28095

llvm-svn: 28094

llvm-svn: 28093

llvm-svn: 28092

llvm-svn: 28091

llvm-svn: 28090

movlps cannot be used (e.g. when load from m64 has multiple uses).

llvm-svn: 28089

in MachineRelocation to create Relocations.

llvm-svn: 28088

llvm-svn: 28087

functionality changes.

llvm-svn: 28086

llvm-svn: 28085

Don't check in the LibDeps.txt and FinalLibDeps.txt files to CVS because
the content differs from platform to platform. Instead, adjust the makefile
so that a dummy llvm-config is built if Perl is not available.

llvm-svn: 28084

llvm-svn: 28083

simplifies the MachineCodeEmitter interface just a little bit and makes
BasicBlocks work like constant pools and jump tables.

llvm-svn: 28082

llvm-svn: 28081

instruction.

llvm-svn: 28080

not be 100% dense.  Increase the minimum threshold for the number of cases
in a switch statement from 4 to 6 in order to create a jump table.

llvm-svn: 28079

llvm-svn: 28077

the heuristic to further reduce spills for several test cases. (Note, it may
not necessarily translate to runtime win!)

llvm-svn: 28076

llvm-svn: 28075

Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses.  This has one caller-visible change: getTargetData() now returns a pointer instead of a reference.

This fixes PR 759.

llvm-svn: 28074

llvm-svn: 28073

llvm-svn: 28072

llvm-svn: 28071

the prototype of the called function.

llvm-svn: 28070

llvm-svn: 28069