Allow loop detection during debug in forwarding nodes, and revert auxcall patch as it make 176.gcc untenable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31510 91177308-0d34-0410-b5e6-96231b3b80d8

debug type for DSA TD

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31509 91177308-0d34-0410-b5e6-96231b3b80d8

1. Add a pass to fold debug label instructions so a debug info client can detect
empty ranges.

2. Reorg how MachineDebugInfo maintains changes to debug labels.

3. Have dwarf writer use debug label info to simplify scopes and source line
coorespondence.

4. Revert the merging of compile units until I can get the bugs ironed out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31507 91177308-0d34-0410-b5e6-96231b3b80d8

add a note from viterbi

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31506 91177308-0d34-0410-b5e6-96231b3b80d8

Enable improved spilling costs by default.  This speeds up viterbi on x86
by 40%, FreeBench/fourinarow by 20%, and many other programs 10-25%.

On PPC, this speeds up fourinarow by 18%, and probably other things as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31504 91177308-0d34-0410-b5e6-96231b3b80d8

Got a little ahead of myself here

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31502 91177308-0d34-0410-b5e6-96231b3b80d8

Fix this test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31501 91177308-0d34-0410-b5e6-96231b3b80d8

Use correct value for float HUGH_VAL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31500 91177308-0d34-0410-b5e6-96231b3b80d8

Added target hook for post-indexed memory ops transformation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31499 91177308-0d34-0410-b5e6-96231b3b80d8

Add post-indexed load / store transformations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31498 91177308-0d34-0410-b5e6-96231b3b80d8

Make some corrections to this test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31497 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore the Output dir.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31496 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case for making sure gdb can get a stack trace with our debug
information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31495 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new llcbeta option.  This speeds up viterbi from 12.34 to 8.76s on
X86.  If happy, I'll enable this by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31493 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak X86/ELF Debugging. Somehow this line got lost in Jim's cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31492 91177308-0d34-0410-b5e6-96231b3b80d8

Bumping version number

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31491 91177308-0d34-0410-b5e6-96231b3b80d8

wrong bug #

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31488 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR988 and CodeGen/Generic/2006-11-06-MemIntrinsicExpand.ll.
The low part goes in the first operand of expandop, not the second one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31487 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31486 91177308-0d34-0410-b5e6-96231b3b80d8

fix encoding of BLR

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31485 91177308-0d34-0410-b5e6-96231b3b80d8

emit TIED_TO correctly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31484 91177308-0d34-0410-b5e6-96231b3b80d8

Mark predicate operands as such in operand info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31483 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new operand flag to mark which operand is the first predicate operand
of an M_PREDICATED instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31482 91177308-0d34-0410-b5e6-96231b3b80d8

simplify the way operand flags and constraints are handled, making it easier
to extend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31481 91177308-0d34-0410-b5e6-96231b3b80d8

recognize ppc's blr instruction as predicated

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31480 91177308-0d34-0410-b5e6-96231b3b80d8

add a flag so that predicated instructions can be recognized by branch
folding

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31479 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead code; added a missing null ptr check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31478 91177308-0d34-0410-b5e6-96231b3b80d8

add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31477 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a small bug noticed on code review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31476 91177308-0d34-0410-b5e6-96231b3b80d8

Tab interferes with uniqueness.
NOTE: There doesn't seem to be consistency for whether a leading tab
is present in a section heading.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31475 91177308-0d34-0410-b5e6-96231b3b80d8

D'oh - reversed logic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31474 91177308-0d34-0410-b5e6-96231b3b80d8

Add comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31473 91177308-0d34-0410-b5e6-96231b3b80d8

regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31472 91177308-0d34-0410-b5e6-96231b3b80d8

xfail this for the 1.9 release.  This is PR984.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31471 91177308-0d34-0410-b5e6-96231b3b80d8

Try again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31470 91177308-0d34-0410-b5e6-96231b3b80d8

Misfire.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31469 91177308-0d34-0410-b5e6-96231b3b80d8

Up to date for 1.9

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31468 91177308-0d34-0410-b5e6-96231b3b80d8

Get LLVMGCCARCH right regardless of the llvm-gcc version being used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31467 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a problem in the the last patch that subverts error message printing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31466 91177308-0d34-0410-b5e6-96231b3b80d8

Remove obsolete VS project.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31465 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak VC++ build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31464 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in the last patch and convert to && instead of & for logical expr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31463 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the -enabled-cbe-printf-a feature.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31462 91177308-0d34-0410-b5e6-96231b3b80d8

Add a -disable-cbe-printf-a option so that the output of the C Backend
stands a chance of being compiled with a non C99 C compiler. The default
is enabled so you must specifically disable this feature if you want the
CBE output compiled with an older C compiler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31461 91177308-0d34-0410-b5e6-96231b3b80d8

Remove commented line from earlier debugging.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31460 91177308-0d34-0410-b5e6-96231b3b80d8

Added pre-indexed store support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31459 91177308-0d34-0410-b5e6-96231b3b80d8

Added getIndexedStore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31458 91177308-0d34-0410-b5e6-96231b3b80d8

Don't check variables before they are set.
Be careful about blanks when checking LLVMGCC variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31455 91177308-0d34-0410-b5e6-96231b3b80d8

Live local variables are being dropped because the begin or end labels marking
their scope are being deleted.  Workaround is to widen scope to full function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31454 91177308-0d34-0410-b5e6-96231b3b80d8

Changes to use operand constraints to process two-address instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31453 91177308-0d34-0410-b5e6-96231b3b80d8

Move to operand constraints for two-address instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31452 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up some code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31451 91177308-0d34-0410-b5e6-96231b3b80d8

encode BLR predicate info for the JIT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31450 91177308-0d34-0410-b5e6-96231b3b80d8

Go through all kinds of trouble to mark 'blr' as having a predicate operand
that takes a register and condition code.  Print these pieces of BLR the
right way, even though it is currently set to 'always'.

Next up: get the JIT encoding right, then enhance branch folding to produce
predicated blr for simple examples.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31449 91177308-0d34-0410-b5e6-96231b3b80d8

Parse PredicateOperand's.  When an instruction takes one, have the generated
isel fill in the instruction operands with the 'execute always' value
automatically.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31448 91177308-0d34-0410-b5e6-96231b3b80d8

First steps to getting PredicateOperand's to work.  This handles instruction
and pat pattern definitions.  Codegen is not right for them yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31444 91177308-0d34-0410-b5e6-96231b3b80d8

Okay, need a pattern before and after the cast pattern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31443 91177308-0d34-0410-b5e6-96231b3b80d8

Allow the regular expression to be extended by a parameter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31442 91177308-0d34-0410-b5e6-96231b3b80d8

For PR950:
A little script to return 1 if it encounters any of the cast instructions
on the stdin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31441 91177308-0d34-0410-b5e6-96231b3b80d8

Add a note about warnings from the GNU ld 2.16.X linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31440 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed some spiller bugs exposed by the recent two-address code changes. Now
there may be other def(s) apart from the use&def two-address operand. We need
to check if the register reuse for a use&def operand may conflicts with another
def. Provide a mean to recover from the conflict if it is detected when the
defs are processed later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31439 91177308-0d34-0410-b5e6-96231b3b80d8

Describe PPC predicates, which are a pair of CR# and condition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31438 91177308-0d34-0410-b5e6-96231b3b80d8

initial steps to getting the predicate on PPC::BLR right.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31437 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead var

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31436 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead/redundant vars

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31435 91177308-0d34-0410-b5e6-96231b3b80d8

remove redundant/dead vars

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31434 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead vars

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31433 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate need for the NumMIOperands field in Operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31432 91177308-0d34-0410-b5e6-96231b3b80d8

The wrong parameter was being tested to deturmine i32 vs i64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31431 91177308-0d34-0410-b5e6-96231b3b80d8

add a regression for memmove

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31430 91177308-0d34-0410-b5e6-96231b3b80d8

add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31429 91177308-0d34-0410-b5e6-96231b3b80d8

this started failing due to Reid's changes in the bc format.  insulate it
from future changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31428 91177308-0d34-0410-b5e6-96231b3b80d8

Fix BasicAA/2006-11-03-BasicAAVectorCrash.ll by handling out-of-range
vector accesses like we handle out-of-range array accesses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31427 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31426 91177308-0d34-0410-b5e6-96231b3b80d8

Make the huge_val test run a C++ program not C

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31422 91177308-0d34-0410-b5e6-96231b3b80d8

this will work better

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31419 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the build on xcode < 2.4

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31417 91177308-0d34-0410-b5e6-96231b3b80d8

Add a check to see if HUGE_VAL is sane or not.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31416 91177308-0d34-0410-b5e6-96231b3b80d8

Split the External and Intrinsic handling into seperate functions.  This
improves readability of the call handling code significantly, as well as
makes it clear which parts are hacky (externals) and which parts are good
(call handling).

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31415 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31414 91177308-0d34-0410-b5e6-96231b3b80d8

Rename

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31413 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead variable. Fix 80 column violations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31412 91177308-0d34-0410-b5e6-96231b3b80d8

revert previous patch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31411 91177308-0d34-0410-b5e6-96231b3b80d8

Added DAG combiner transformation to generate pre-indexed loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31410 91177308-0d34-0410-b5e6-96231b3b80d8

Added isPredecessor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31409 91177308-0d34-0410-b5e6-96231b3b80d8

Proper check for two-addressness.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31408 91177308-0d34-0410-b5e6-96231b3b80d8

Added a target specific hook to check whether / how a node can be transformed
into a pair of base / offset nodes for pre-indexed load / store ops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31407 91177308-0d34-0410-b5e6-96231b3b80d8

Add isPredecessor to check whether a node is another's predecessor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31406 91177308-0d34-0410-b5e6-96231b3b80d8

Dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31405 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31404 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an unused variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31403 91177308-0d34-0410-b5e6-96231b3b80d8

silence warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31402 91177308-0d34-0410-b5e6-96231b3b80d8

Remove some dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31401 91177308-0d34-0410-b5e6-96231b3b80d8

add createCFGSimplificationPass to ARMTargetMachine::addInstSelector

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31400 91177308-0d34-0410-b5e6-96231b3b80d8

assert.h -> cassert

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31399 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31398 91177308-0d34-0410-b5e6-96231b3b80d8

silence warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31397 91177308-0d34-0410-b5e6-96231b3b80d8

Don't write out variables that are never used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31396 91177308-0d34-0410-b5e6-96231b3b80d8

silence warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31395 91177308-0d34-0410-b5e6-96231b3b80d8

silence warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31394 91177308-0d34-0410-b5e6-96231b3b80d8