llvm-svn: 23507

llvm-svn: 23506

Though I have done extensive testing, it is possible that this will break
things in configs I can't test.  Please let me know if this causes a problem
and I'll fix it ASAP.

llvm-svn: 23505

Though I have done extensive testing, it is possible that this will break
things in configs I can't test.  Please let me know if this causes a problem
and I'll fix it ASAP.

llvm-svn: 23504

llvm-svn: 23503

llvm-svn: 23502

Currently we check that immediate values live on the RHS of commutative
operators.  Defining ORI like this, for example:

def ORI   : DForm_4<24, (ops GPRC:$dst, GPRC:$src1, u16imm:$src2),
                    "ori $dst, $src1, $src2",
                    [(set GPRC:$dst, (or immZExt16:$src2, GPRC:$src1))]>;

results in:

tblgen: In ORI: Instruction can never match: Immediate values must be on the RHS of commutative operators!
llvm-svn: 23501

llvm-svn: 23500

llvm-svn: 23499

llvm-svn: 23498

llvm-svn: 23497

llvm-svn: 23496

llvm-svn: 23495

llvm-svn: 23494

Add a missed eqv case.

llvm-svn: 23493

file

llvm-svn: 23492

llvm-svn: 23491

llvm-svn: 23490

llvm-svn: 23489

llvm-svn: 23488

llvm-svn: 23487

to right now.

llvm-svn: 23485

and PR632.

llvm-svn: 23484

llvm-svn: 23483

on setjmp calls and restores it on longjmp calls (both of which require syscalls).

This makes the calls REALLY slow.  Use _setjmp/_longjmp instead.  This speeds up
hexxagon from 120.31s to 15.68s: from 5.53x slower than GCC to 28% faster than GCC.

llvm-svn: 23482

If the target prefers it, use _setjmp/_longjmp should be used instead of setjmp/longjmp for llvm.setjmp/llvm.longjmp.

llvm-svn: 23481

llvm-svn: 23480

and _setjmp/_longjmp should be used instead (for llvm.setjmp/llvm.longjmp).

llvm-svn: 23479

llvm-svn: 23478

is performed so it is only at most once per function that contains an invoke
instead of once per invoke in the function.  This patch has the following perks:

1. It fixes PR631, which complains about slowness.
2. If fixes PR240, which complains about non-volatile vars being live across
   setjmp/longjmps.
3. It improves (but does not fix) the jmpbuf alignment issue on itanium by not
   forcing the jmpbufs to always be 8-bytes off the alignment of the structure.
4. It speeds up 253.perlbmk from 338s to 13.70s (a 25x improvement!), making us
   now about 4% faster than GCC.

Further improvements are also possible.

llvm-svn: 23477

llvm-svn: 23476

llvm-svn: 23475

llvm-svn: 23474

llvm-svn: 23473

llvm-svn: 23472

llvm-svn: 23471

cross MBB pollution.

llvm-svn: 23470

llvm-svn: 23469

into the evaluator.  This shrinks a release build of instcombine's text
section from 216363 to 215975 bytes (on PPC).

llvm-svn: 23468

Split SimpleConstantVal up into its components, so each Constant subclass getsa different enum value.  This allows 'classof' for these to be really simple,not needing to call getType() anymore.

This speeds up isa/dyncast/etc for constants, and also makes them smaller.
For example, the text section of a release build of InstCombine.cpp shrinks
from 230037 bytes to 216363 bytes, a 6% reduction.

llvm-svn: 23467