Add a RetVT parameter to emitted FastISel methods, so that we will be able to pass the desired return
type down.  This is not currently used.

llvm-svn: 55345

Deepen the map structure tablegen uses to compute FastISel patterns, in preparation for having patterns
with return types that differ from their input types.  This is not yet used.

llvm-svn: 55344

bitcast of constants in fast isel.

llvm-svn: 55325

llvm-svn: 55157

and use it in FastISelEmitter.cpp, and make FastISel
subtarget aware. Among other things, this lets it work
properly on x86 targets that don't have SSE, where it
successfully selects x87 instructions.

llvm-svn: 55156

llvm-svn: 55099

llvm-svn: 55096

llvm-svn: 55093

llvm-svn: 55080

namespace out of the isel emitters and into common code.

llvm-svn: 55079

class hold a MachineRegisterInfo member, and make the
MachineBasicBlock be passed in to SelectInstructions rather
than the FastISel constructor.

llvm-svn: 55076

register class.

llvm-svn: 55008

helper function.

llvm-svn: 55007

llvm-svn: 55004

llvm-svn: 55003

FastISel doesn't support yet.

llvm-svn: 55002

llvm-svn: 54998

llvm-svn: 54997

the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.

llvm-svn: 54751