Clean up cvttps2dq by removing some redundant implementations of the
same instruction.  rdar://8456382

llvm-svn: 115018

llvm-svn: 115017

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: 115003

llvm-svn: 115002

llvm-svn: 115001

llvm-svn: 114999

llvm-svn: 114998

knows about them. This is not necessary on 10.6 and later.

llvm-svn: 114997

delete the MDNode that changed, rather than the other MDNode.
This is less work, because it doesn't require the changed node
to be re-inserted into the uniquing map and it doesn't require
the is-function-local flag to be recomputed. Also, it avoids
trouble when the existing node is part of a complicated
data structure.

llvm-svn: 114996

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

it's not used afterwards.

llvm-svn: 114986

estimates.

llvm-svn: 114981

llvm-svn: 114974

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

also fixes PR8250.

llvm-svn: 114972

llvm-svn: 114969

hosted on different platforms.

llvm-svn: 114965

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

llvm-svn: 114964

llvm-svn: 114958

llvm-svn: 114953

llvm-svn: 114952

llvm-svn: 114951

llvm-svn: 114949

llvm-svn: 114948

llvm-svn: 114947

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