Remat of pic loads are now on by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47525 91177308-0d34-0410-b5e6-96231b3b80d8

Turning on remat of pic loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47524 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug that caused opt and other tools to silently ignore
invalid command-line options.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47523 91177308-0d34-0410-b5e6-96231b3b80d8

No need recognize load from a fixed argument slot as re-materializable. LiveIntervalAnalysis already handles it as a special case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47522 91177308-0d34-0410-b5e6-96231b3b80d8

Properly read and write bitcodes for multiple return values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47521 91177308-0d34-0410-b5e6-96231b3b80d8

Recognize loads of arguments as re-materializable first. Therefore if isReallyTriviallyReMaterializable() returns true it doesn't confuse it as a "normal" re-materializable instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47520 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47519 91177308-0d34-0410-b5e6-96231b3b80d8

Use isa check instead of getTypeID() check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47518 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed buffer overflow reported by Argiris Kirtzidis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47517 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unnecessary "inline" keywords.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47516 91177308-0d34-0410-b5e6-96231b3b80d8

print getresult operand and its type directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47514 91177308-0d34-0410-b5e6-96231b3b80d8

Really. Why doesn't every arch support MMX?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47513 91177308-0d34-0410-b5e6-96231b3b80d8

Use dyn_cast instead of isa + cast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47511 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47510 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47509 91177308-0d34-0410-b5e6-96231b3b80d8

To support multiple return values, now ret instruction supports multiple operands instead of one aggregate operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47508 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spill weight updating bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47507 91177308-0d34-0410-b5e6-96231b3b80d8

Split ParameterAttributes.h, putting the complicated
stuff into ParamAttrsList.h.  Per feedback from
ParamAttrs changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47504 91177308-0d34-0410-b5e6-96231b3b80d8

Improving wording.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47503 91177308-0d34-0410-b5e6-96231b3b80d8

Adding a note about IR generation to the LLVM FAQ.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47502 91177308-0d34-0410-b5e6-96231b3b80d8

Test case for PR2082.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47501 91177308-0d34-0410-b5e6-96231b3b80d8

Same isPhysRegAvailable bug as local register allocator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47500 91177308-0d34-0410-b5e6-96231b3b80d8

Really really bad local register allocator bug. On X86, it was never using ESI, EDI, and EBP because of a bug in RALocal::isPhysRegAvailable(). For example, when
it checks if ESI is available, it then looks at registers aliases to ESI. SIL is marked -2 (not allocatable) but isPhysRegAvailable() incorrectly assumes it is in use and returns false for ESI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47499 91177308-0d34-0410-b5e6-96231b3b80d8

Add debugging printfs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47496 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47495 91177308-0d34-0410-b5e6-96231b3b80d8

Use SymbolicValueRef to parse getresult operand

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47494 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an invalid assertion now that there are implicit virtual register operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47493 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure reload of implicit uses are issued before remat's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47492 91177308-0d34-0410-b5e6-96231b3b80d8

Add StripDeadPrototypes pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47488 91177308-0d34-0410-b5e6-96231b3b80d8

Generated files for 47484.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47485 91177308-0d34-0410-b5e6-96231b3b80d8

Pass alignment on ByVal parameters, from FE, all
the way through.  It is now used for codegen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47484 91177308-0d34-0410-b5e6-96231b3b80d8

MMX vectors are passed 4-byte aligned.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47483 91177308-0d34-0410-b5e6-96231b3b80d8

Add smart refcounting pointer class to ADT back (known before as IntrusiveSPtr.h).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47482 91177308-0d34-0410-b5e6-96231b3b80d8

fix some bugs in tutorial, patch by Erick Tryzelaar

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47481 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak build for VC2008. Patch by Argiris Kirtzidis!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47480 91177308-0d34-0410-b5e6-96231b3b80d8

Provide __main hooks for cygwin & mingw32

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47479 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47478 91177308-0d34-0410-b5e6-96231b3b80d8

Allow re-materialization of pic load (controlled by -remat-pic-load for now).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47476 91177308-0d34-0410-b5e6-96231b3b80d8

Enable re-materialization of instructions which have virtual register operands if
the definition of the operand also reaches its uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47475 91177308-0d34-0410-b5e6-96231b3b80d8

copy mmx values from/to memory with GPRs on x86-32
instead of with mmx registers.  This horribleness is apparently
done by gcc to avoid having to insert emms in places that really
should have it.  This is the second half of rdar://5741668.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47474 91177308-0d34-0410-b5e6-96231b3b80d8

Print getresult instruction properly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47473 91177308-0d34-0410-b5e6-96231b3b80d8

Print ret instruction that returns aggregates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47472 91177308-0d34-0410-b5e6-96231b3b80d8

Read and write getresult.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47471 91177308-0d34-0410-b5e6-96231b3b80d8

Start using GPR's to copy around mmx value instead of mmx regs.
GCC apparently does this, and code depends on not having to do
emms when this happens.  This is x86-64 only so far, second half
should handle x86-32.

rdar://5741668

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47470 91177308-0d34-0410-b5e6-96231b3b80d8

minor cleanups to LSBaseSDNode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47469 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compiler warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47468 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a regression in 403.gcc and 186.crafty introduced in 47383. To test
that a value is >= 32, check that all of the high bits are zero, not
just one or more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47467 91177308-0d34-0410-b5e6-96231b3b80d8

print getresult instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47461 91177308-0d34-0410-b5e6-96231b3b80d8

Use isa<> instead of getTypeID() to check StructType.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47460 91177308-0d34-0410-b5e6-96231b3b80d8

A few minor updates, removing implemented stuff and adding a couple of
new things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47458 91177308-0d34-0410-b5e6-96231b3b80d8

Make the clobber analysis a bit more smart: we only are careful about
early clobbers if the clobber list contains a *register* not some thing
like {memory}, {dirflag} etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47457 91177308-0d34-0410-b5e6-96231b3b80d8

Treat clobber operands like early clobbers: if we have
any, we force sdisel to do all regalloc for an asm.  This
leads to gross but correct codegen.

This fixes the rest of PR2078.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8

Clear PhysRegPartUse for the sub register as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47453 91177308-0d34-0410-b5e6-96231b3b80d8

Adjust the MaxAlignment for the special register scavenging spill slot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47452 91177308-0d34-0410-b5e6-96231b3b80d8

Help testing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47448 91177308-0d34-0410-b5e6-96231b3b80d8

Change a C-style cast to const_cast, to avoid a -Wcast-qual warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47437 91177308-0d34-0410-b5e6-96231b3b80d8

Better names as per Evan's request

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47435 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify this code, no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47434 91177308-0d34-0410-b5e6-96231b3b80d8

GlobalValues are Constants, remove redundant code. Also fix typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47433 91177308-0d34-0410-b5e6-96231b3b80d8

Remove llvm-upgrade and update tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47432 91177308-0d34-0410-b5e6-96231b3b80d8

Dan implemented one multiply issue.  Replace it with another. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47431 91177308-0d34-0410-b5e6-96231b3b80d8

Atomic op support.  If any gcc test uses __sync builtins, it might start failing on archs that haven't implemented them yet

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47430 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for matching mem operands.  This fixes PR1133, patch by
Eli Friedman.  This implements CodeGen/Generic/2008-02-20-MatchingMem.ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47428 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for PR1133

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47427 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a (harmless) but where vregs were added to the used reg lists for
inline asms.

Fix PR2078 by marking aliases of registers used when a register is
marked used.  This prevents EAX from being allocated when AX is listed
in the clobber set for the asm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47426 91177308-0d34-0410-b5e6-96231b3b80d8

Let invoke return aggregate value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47425 91177308-0d34-0410-b5e6-96231b3b80d8

Let function call return aggregate.
Now, we have very first multiple return value testcase!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47424 91177308-0d34-0410-b5e6-96231b3b80d8

Add -disable-output option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47422 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up some spilling code using MachineRegisterInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47416 91177308-0d34-0410-b5e6-96231b3b80d8

XFAIL for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47411 91177308-0d34-0410-b5e6-96231b3b80d8

Now functions can return aggregate values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47409 91177308-0d34-0410-b5e6-96231b3b80d8

regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47408 91177308-0d34-0410-b5e6-96231b3b80d8

Parse
ret i32 1, i8 2
another step towards multiple return value support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47407 91177308-0d34-0410-b5e6-96231b3b80d8

What if functions can return aggregate values ?
One small step towards multiple return value support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47406 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerated files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47402 91177308-0d34-0410-b5e6-96231b3b80d8

Support alignment within ParamAttrs in the I/O handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47401 91177308-0d34-0410-b5e6-96231b3b80d8

Poorly named option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47400 91177308-0d34-0410-b5e6-96231b3b80d8

Remove one of the fixmes that I put in there. From Evan:

No need to go up more levels. A def of a register also sets its sub-registers
(so if PhysRegInfo[SuperReg] is NULL, it means SuperReg's super registers are
not previously defined).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47399 91177308-0d34-0410-b5e6-96231b3b80d8

Add convenient helper to get suffix of the file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47397 91177308-0d34-0410-b5e6-96231b3b80d8

getresult does not support nested aggregates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47396 91177308-0d34-0410-b5e6-96231b3b80d8

Improve some comments explaining the "handle kills" stuff better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47395 91177308-0d34-0410-b5e6-96231b3b80d8

Verifier should use Assert1 instead of assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47394 91177308-0d34-0410-b5e6-96231b3b80d8

Remove inline keywords from in-class function definitions, for
consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47393 91177308-0d34-0410-b5e6-96231b3b80d8

getresult type is the type of indexed aggregate element

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47392 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47391 91177308-0d34-0410-b5e6-96231b3b80d8

Specify GetResultInst index as an unsigned.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47390 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47389 91177308-0d34-0410-b5e6-96231b3b80d8

assert is more effective reminder then FIXME tag for unimplemented features.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47388 91177308-0d34-0410-b5e6-96231b3b80d8

Use isValidOperands() to verify GetResultInst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47387 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo. Add const version of getAggregateValue() accessor member function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47386 91177308-0d34-0410-b5e6-96231b3b80d8

Temporarily backing out r47337. It breaks a number of CBE tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47385 91177308-0d34-0410-b5e6-96231b3b80d8

LegalizeTypes support for scalarizing a vector store
and splitting extract_subvector.  This fixes nine
"make check" testcases, for example
2008-02-04-ExtractSubvector.ll and (partially)
CodeGen/Generic/vector.ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47384 91177308-0d34-0410-b5e6-96231b3b80d8

Convert Legalize to use the APInt form of ComputeMaskedBits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47383 91177308-0d34-0410-b5e6-96231b3b80d8

Add explicit keywords.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47382 91177308-0d34-0410-b5e6-96231b3b80d8

Convert DAGCombiner to use the APInt form of ComputeMaskedBits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47381 91177308-0d34-0410-b5e6-96231b3b80d8

Use APInt::intersects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47380 91177308-0d34-0410-b5e6-96231b3b80d8

Add an intersects method to APInt, to capture a common idiom.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47379 91177308-0d34-0410-b5e6-96231b3b80d8

Add documentation for cl::sink stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47378 91177308-0d34-0410-b5e6-96231b3b80d8

Add 'sink' cmdline option. Patch by Mikhail Glushenkov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47377 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47376 91177308-0d34-0410-b5e6-96231b3b80d8