now that we handle single mbb loops better, one branch is allowed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31540 91177308-0d34-0410-b5e6-96231b3b80d8

regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31539 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug noticed by Emil Mikulic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31538 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a obscure post-indexed load / store dag combine bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31537 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor all the addressing mode selection stuff into the isel lowering
class, where it can be used for preinc formation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31536 91177308-0d34-0410-b5e6-96231b3b80d8

correct the (currently unused) pattern for lwzu.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31535 91177308-0d34-0410-b5e6-96231b3b80d8

preincrement case we miss.  xfail until we catch it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31534 91177308-0d34-0410-b5e6-96231b3b80d8

Beautify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31533 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the section headings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31532 91177308-0d34-0410-b5e6-96231b3b80d8

For PR950:
Early commit of the documentation for new conversion instructions for
easier review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31531 91177308-0d34-0410-b5e6-96231b3b80d8

optimize single MBB loops better.  In particular, produce:

LBB1_57:        #bb207.i
        movl 72(%esp), %ecx
        movb (%ecx,%eax), %cl
        movl 80(%esp), %edx
        movb %cl, 1(%edx,%eax)
        incl %eax
        cmpl $143, %eax
        jne LBB1_57     #bb207.i
        jmp LBB1_64     #cond_next255.i

intead of:

LBB1_57:        #bb207.i
        movl 72(%esp), %ecx
        movb (%ecx,%eax), %cl
        movl 80(%esp), %edx
        movb %cl, 1(%edx,%eax)
        incl %eax
        cmpl $143, %eax
        je LBB1_64      #cond_next255.i
        jmp LBB1_57     #bb207.i

This eliminates a branch per iteration of the loop.  This hurted PPC
particularly, because the extra branch meant another dispatch group for each
iteration of the loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31530 91177308-0d34-0410-b5e6-96231b3b80d8

Beautify.
Clarify comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31529 91177308-0d34-0410-b5e6-96231b3b80d8

Update new pass managers to use PassManagerAnalysisHelper API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31526 91177308-0d34-0410-b5e6-96231b3b80d8

Derive new pass managers from PassManagerAnalysisHelper.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31525 91177308-0d34-0410-b5e6-96231b3b80d8

scalarrepl should not split the two elements of the vsiidx array:
int func(vFloat v0, vFloat v1) {
        int ii;
        vSInt32 vsiidx[2];
        vsiidx[0] = _mm_cvttps_epi32(v0);
        vsiidx[1] = _mm_cvttps_epi32(v1);
        ii = ((int *) vsiidx)[4];
        return ii;
}

This fixes Transforms/ScalarRepl/2006-11-07-InvalidArrayPromote.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31524 91177308-0d34-0410-b5e6-96231b3b80d8

scalarrepl should not split the two elements of the vsiidx array:
int func(vFloat v0, vFloat v1) {
int ii;
vSInt32 vsiidx[2];
vsiidx[0] = _mm_cvttps_epi32(v0);
vsiidx[1] = _mm_cvttps_epi32(v1);
ii = ((int *) vsiidx)[4];
return ii;
}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31523 91177308-0d34-0410-b5e6-96231b3b80d8

Introduce PassManagerAnalysisHelper.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31522 91177308-0d34-0410-b5e6-96231b3b80d8

Add PassManager_New.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31521 91177308-0d34-0410-b5e6-96231b3b80d8

New test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31520 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a bug which causes x86 be to incorrectly match
shuffle v, undef, <2, ?, 3, ?>
to movhlps
It should match to unpckhps instead.

Added proper matching code for
shuffle v, undef, <2, 3, 2, 3>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31519 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31518 91177308-0d34-0410-b5e6-96231b3b80d8

Add ModulePassManager_New.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31517 91177308-0d34-0410-b5e6-96231b3b80d8

Accidently reran commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31516 91177308-0d34-0410-b5e6-96231b3b80d8

Add FunctionPassManager_New.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31515 91177308-0d34-0410-b5e6-96231b3b80d8

Missed a label map, reverting till covered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31514 91177308-0d34-0410-b5e6-96231b3b80d8

Add BasicBlockPassManager_New.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31513 91177308-0d34-0410-b5e6-96231b3b80d8

Missed a label map, reverting till covered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31512 91177308-0d34-0410-b5e6-96231b3b80d8

Optionally allow comparison operations from affect DSGraphs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31511 91177308-0d34-0410-b5e6-96231b3b80d8

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