Commit Graph

40977 Commits

Author SHA1 Message Date
Dan Gohman
151ed61a2f Don't check TLI.getOperationAction. The FastISel way is to
just try to do the action and let the tablegen-generated code
determine if there is target-support for an operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55427 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 18:15:05 +00:00
Dan Gohman
ad368ac2b5 Add a new FastISel method, getRegForValue, which takes care of
the details of materializing constants and other values into
registers, and make use of it in several places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55426 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 18:10:19 +00:00
Dan Gohman
96a9999d79 Add a comment about the current floating-point constant code in FastISel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55425 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 18:01:42 +00:00
Devang Patel
541532724e Fix typos and whitespaces. Other cosmetic changes based on feedback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55424 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 17:50:18 +00:00
Chris Lattner
505569dc9c Minor cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55423 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 17:36:58 +00:00
Dan Gohman
7deb17108f Reinstate the x86-64 portion of r55190. When doing extloads into
64-bit registers from 16-bit and smaller memory locations, prefer
instructions that define the entire 64-bit register, to avoid
partial-register updates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55422 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 17:33:15 +00:00
Dan Gohman
e5a8dc5cc4 Optimize ScheduleDAGRRList's topological sort to use one pass instead
of two, and to not need a scratch std::vector. Also, compute the ordering
immediately in the result array, instead of in another scratch std::vector
that is copied to the result array.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55421 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 16:29:48 +00:00
Dan Gohman
3a09d891a4 Optimize ScheduleDAG's ComputeDepths and ComputeHeights to not need
a scratch std::vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55420 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 16:27:25 +00:00
Dan Gohman
a8b8332e81 Remove the std::ostream form of PseudoSourceValue's print,
which isn't needed anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 16:19:44 +00:00
Dan Gohman
833ddf8430 Update a comment to reflect recent changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55418 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 16:18:22 +00:00
Dan Gohman
ebe1dbabc1 Unbreak PseudoSourceValue::print. This fixes -print-machine-instrs
and various other things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55415 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 15:24:43 +00:00
Dan Gohman
39dfc2cb9c Diagnose uses of unsized types with the byval attribute in the
verifier. See PR2711 for details.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55414 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 14:48:06 +00:00
Dan Gohman
9f50eeea8c Update wording, as aggregates are now first-class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55413 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 14:44:57 +00:00
Evan Cheng
1505cdbcea Add DebugInfoBuilder. Patch by Talin!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55409 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 06:51:14 +00:00
Dan Gohman
10df0fa73e Basic FastISel support for floating-point constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55401 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 01:09:54 +00:00
Owen Anderson
96c5ea878c Fix handling of inttoptr and ptrtoint when unhandled operands are present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55400 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 00:35:37 +00:00
Owen Anderson
9d5b416240 Add support for fast isel of inttoptr and ptrtoint in the cases where truncation is not needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55399 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 00:31:01 +00:00
Owen Anderson
d0533c9998 Factor out a large amoutn of the cast handling code in fast isel into helper methods.
This simultaneously makes the code simpler and adds support for sext as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55398 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 23:46:32 +00:00
Dan Gohman
4b6e7069c3 Add a MachineInstrBuilder method for adding floating-point
immediate operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55397 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 23:19:23 +00:00
Owen Anderson
97e2568f46 Add support for fast isel of zext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55396 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 23:14:49 +00:00
Gabor Greif
99a6cb92d1 disallow direct access to SDValue::ResNo, provide a getter instead
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55394 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 22:36:50 +00:00
Owen Anderson
13269335a5 Add support for fptosi of constants in fast isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55393 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 22:34:28 +00:00
Owen Anderson
516eb1c139 Put a heuristic in place to prevent GVN from falling into bad cases with massively complicated CFGs.
This speeds up a particular testcase from 12+ hours to 5 seconds with little perceptible loss of quality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55391 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 22:07:42 +00:00
Dan Gohman
3200d92947 Optimize SelectionDAG's topological sort to use one pass instead
of two, and to not need a scratch std::vector. Also, use the
SelectionDAG's topological sort in LegalizeDAG instead of having
a separate implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55389 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 21:42:18 +00:00
Dan Gohman
763d89343b Refactor the bitcast code into its own function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55387 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 21:28:54 +00:00
Dan Gohman
72d63af3f7 Refactor a bunch of FastISelEmitter code into a helper class, and
put each major step in a separate function. This makes the high
level sequence of events easier to follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 21:21:20 +00:00
Dan Gohman
80bc6e2243 Make FastISel use the correct argument type when casting GEP indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55384 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 20:57:08 +00:00
Dan Gohman
b71fea248f Don't select binary instructions with illegal types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55383 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 20:52:40 +00:00
Owen Anderson
a843b8d391 Add support for fast isel of sitofp, and remove some unnecessary and imprecise legality checks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55381 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 20:37:00 +00:00
Cedric Venet
c93457053c - small bug corrected: incorrect iterator type.
- fix to please VS: add a return after an assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55380 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 19:49:04 +00:00
Owen Anderson
77a218765a Use a combination of copyRegToReg and ISD::BIT_CONVERT when doing fast isel of bitcasts,
allowing it to support the full range of conversions people might ask for in a correct manner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55378 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 18:51:24 +00:00
Owen Anderson
a317767f0e These assertions should be return false's instead, allowing the client to detect the failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55377 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 18:50:40 +00:00
Owen Anderson
70647e81e3 We need to check that the return type is correct, even in cases where we don't
have a return type that differs from the operand types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55376 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 18:50:00 +00:00
Owen Anderson
940f83e772 Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy requested
was inserted or not.  This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55375 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 18:03:31 +00:00
Devang Patel
a0b3909d43 If IV is used in a int-to-float cast inside the loop then try to eliminate the cast operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55374 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 17:57:54 +00:00
Owen Anderson
46aa2f5aab Add support for fast isel of non-constant fptosi instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 17:44:42 +00:00
Gabor Greif
231fe70541 fix doxygen comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55372 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 17:44:40 +00:00
Ted Kremenek
4ac67ef47a Grammar fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 16:41:15 +00:00
Ted Kremenek
3d4866e683 Added "str()" method to raw_string_ostream.
str() mirrors the same method in std::ostringstream.
str() flushes the buffered stream contents to string and returns a reference to the string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55370 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 16:34:01 +00:00
Chris Lattner
9783d62422 code simplification, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55363 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 07:01:28 +00:00
Chris Lattner
073ff02e0d stabilize more printing, this doesn't cause a problem
in the example attached to PR2590, but is a problem in general.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 06:50:46 +00:00
Chris Lattner
943c0e6fba stablize SubRegsSet printing, part of PR2590
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55360 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 06:49:06 +00:00
Chris Lattner
690d80eefe Stabilize 'getDwarfRegNumFull' output to not depend on random memory
orders, part of PR2590


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55359 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 06:43:25 +00:00
Chris Lattner
6ba50a9252 If an xmm register is referenced explicitly in an inline asm, make sure to
assign it to a version of the xmm register with the regclass that matches its
type.  This fixes PR2715, a bug handling some crazy xpcom case in mozilla.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55358 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 06:19:02 +00:00
Chris Lattner
09c5d8baa2 typo fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55355 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 06:07:47 +00:00
Dan Gohman
1146728bfa Actually recycle SDNode allocations. SelectionDAG is using
RecyclingAllocator, but this change is needed for the nodes
to actually be recycled. This cuts SelectionDAG's memory
usage high-water-mark in half in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55351 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 01:44:34 +00:00
Dan Gohman
b6e3d6ce70 Avoid a warning about isTargetNullPtr being unused in release builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55350 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 01:38:29 +00:00
Owen Anderson
abb1f16881 Throw the switch to allow FastISel to emit instructions whose return types different from their inputs. Next step: adding lowering pattens in FastISel that actually use these newly available opcodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55349 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 01:22:59 +00:00
Evan Cheng
b09c25ebf0 This is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 01:13:44 +00:00
Owen Anderson
71669e51e5 Enhance TableGen to emit code for FastISel of opcodes with variadic return types without slowing down opcodes that are not variadic. No such opcodes are currently generated, but in theory it should be a matter of just hitting the switch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55347 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 00:42:26 +00:00