for generic call handling.

llvm-svn: 115105

pipeline forwarding path.

llvm-svn: 115098

a context.

llvm-svn: 115094

which require the use of the shifter-operand. This will be used to split
the ldr/str instructions such that those versions needing the shifter operand
can get a different scheduling itenerary, as in some cases, the use of the
shifter can cause different scheduling than the simpler forms.

llvm-svn: 115066

LDM/STM instructions can run one cycle faster on some ARM processors if the
memory address is 64-bit aligned.  Radar 8489376.

llvm-svn: 115047

llvm-svn: 115043

One Printer to lower them all and in the back end bind them.


(Remove option to use the old non-MC asm printer.)

llvm-svn: 115038

added some doxygen on the way

llvm-svn: 115033

an instruction that requires a WHOLE NEW wonderful kind of alias.

llvm-svn: 115015

MCStreamer to emit into instead of an MCInst to fill in.  This allows the
matcher extra flexibility and is more convenient.

llvm-svn: 115014

problems with phi-nodes in blocks that have hard and not virtual registers.

Accordingly update branch handling to compensate.

llvm-svn: 115013

llvm-svn: 115011

llvm-svn: 115010

llvm-svn: 115009

Assign bitwise binary instructions different itinerary classes from ALU instructions such as add / sub.

llvm-svn: 115008

llvm-svn: 115005

llvm-svn: 115001

llvm-svn: 114999

cost modeling for if-conversion.  Now if only we had a way to estimate the misprediction probability.

Adjsut CodeGen/ARM/ifcvt10.ll.  The pipeline on Cortex-A8 is long enough that it is still profitable
to predicate an ldm, but the shorter pipeline on Cortex-A9 makes it unprofitable.

llvm-svn: 114995

llvm-svn: 114994

  ARMTargetMachine.cpp:53: error: control reaches end of non-void function

llvm-svn: 114992

Patch by Evzen Muller!

llvm-svn: 114991

Rather than having arbitrary cutoffs, actually try to cost model the conversion.

For now, the constants are tuned to more or less match our existing behavior, but these will be
changed to reflect realistic values as this work proceeds.

llvm-svn: 114973

This should make the arm-linux self-host buildbot happy again.

llvm-svn: 114964

llvm-svn: 114949

llvm-svn: 114943

accesses for ARM targets that would otherwise allow it.  Radar 8465431.

llvm-svn: 114941

now takes a libcall operand, sets up the arguments correctly and
handles stack adjustments.

llvm-svn: 114934

llvm-svn: 114931

llvm-svn: 114930

enable it for real. Leaving the CL option in place to it's easy to disable it
again if (when) testers find something I've missed.

llvm-svn: 114915

llvm-svn: 114896

enable it for real. Leaving the CL option in place to it's easy to disable it
again if (when) testers find something I've missed.

llvm-svn: 114892

llvm-svn: 114862

llc now recognizes the "intent" to support MC/obj emission for ARM, but
given that they are all stubs, it asserts on --filetype=obj --march=arm

Patch by Jason Kim.

llvm-svn: 114856

divide support also.

llvm-svn: 114813

llvm-svn: 114812

llvm-svn: 114784

llvm-svn: 114782

llvm-svn: 114780