Dan Gohman
5edd361497
Fix a FastISel bug where the instructions from lowering the arguments
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were being emitted after the first instructions of the entry block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55496 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 20:28:56 +00:00
Rafael Espindola
833a990c26
Use resize instead of reserve. Reserve doesn't change size().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55486 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 18:32:53 +00:00
Rafael Espindola
91ee5454ae
Reduce the size of the Parts vector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 18:29:58 +00:00
Owen Anderson
c0bb68b982
Hook up support for fast-isel of trunc instructions, using the newly working support for EXTRACT_SUBREG.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55482 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 18:26:01 +00:00
Owen Anderson
b5dbcb538b
Add support for fast-isel of opcodes that require use of extract_subreg. Because of how extract_subreg is treated, it requires special case handling.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55480 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 18:06:12 +00:00
Dale Johannesen
97efa36586
Implement partial-word binary atomics on ppc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55478 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 17:53:09 +00:00
Owen Anderson
40a468f249
FastEmitInst_extractsubreg doesn't need to be passed the register class. It can get it from MachineRegisterInfo instead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55476 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 17:47:37 +00:00
Dan Gohman
f641395435
Revert r55467; it causes regressions in UnitTests/Vector/divides,
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Benchmarks/sim/sim, and others on x86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55475 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 17:22:54 +00:00
Rafael Espindola
c748ffa4e4
Correctly resize the Parts array.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55471 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 14:24:45 +00:00
Evan Cheng
9242cb8b82
If a copy isn't coalesced, but its src is defined by trivial computation. Re-materialize the src to replace the copy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55467 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 07:53:51 +00:00
Evan Cheng
66e13153bd
FsFLD0S{S|D} and V_SETALLONES are as cheap as moves.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55466 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 07:52:25 +00:00
Chris Lattner
cad208b8bc
Make the verifier reject instructions which have null pointers
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for operands: rdar://6179606. no testcase, because I can't write
a .ll file that is this broken ;-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55460 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 04:02:44 +00:00
Chris Lattner
1e1ef3e2bd
Clear the intervals list in "destroy", patch by
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Prakash Prabhu!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55458 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 03:33:03 +00:00
Dale Johannesen
e00a8a2a2e
Split the ATOMIC NodeType's to include the size, e.g.
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ATOMIC_LOAD_ADD_{8,16,32,64} instead of ATOMIC_LOAD_ADD.
Increased the Hardcoded Constant OpActionsCapacity to match.
Large but boring; no functional change.
This is to support partial-word atomics on ppc; i8 is
not a valid type there, so by the time we get to lowering, the
ATOMIC_LOAD nodes looks the same whether the type was i8 or i32.
The information can be added to the AtomicSDNode, but that is the
largest SDNode; I don't fully understand the SDNode allocation,
but it is sensitive to the largest node size, so increasing
that must be bad. This is the alternative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55457 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 02:44:49 +00:00
Dale Johannesen
f2c785edf0
This test crashes on non-x86 host; make SSE explicit.
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Feel free to fix a better way!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55456 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 01:51:09 +00:00
Dan Gohman
0e2b43fee2
Fix a missing #include. Patch by Andrew John Hughes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55451 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 00:20:07 +00:00
Dan Gohman
7c3234c6be
Reorganize the lifetimes of the major objects SelectionDAGISel
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works with.
SelectionDAG, FunctionLoweringInfo, and SelectionDAGLowering
objects now get created once per SelectionDAGISel instance, and
can be reused across blocks and across functions. Previously,
they were created and destroyed each time they were needed.
This reorganization simplifies the handling of PHI nodes, and
also SwitchCases, JumpTables, and BitTestBlocks. This
simplification has the side effect of fixing a bug in FastISel
where successor PHI nodes weren't being updated correctly.
This is also a step towards making the transition from FastISel
into and out of SelectionDAG faster, and also making
plain SelectionDAG faster on code with lots of little blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55450 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 23:52:12 +00:00
Owen Anderson
8970f00def
Add a helper method that will be used to support EXTRACT_SUBREG for selecting trunc's in fast-isel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55439 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 22:30:02 +00:00
Bill Wendling
1dd0086b06
Make "movdq2q" and "movq2dq" dependent upon having SSE2 because they use the
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SSE2 registers as well as the MMX registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55436 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 21:32:04 +00:00
Bill Wendling
d64d956f3d
Put file scoped constants in an anonymous namespace. Use the "using namespace
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llvm" for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55435 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 21:10:13 +00:00
Evan Cheng
8763c1c544
Move the check whether it's worth remating to caller.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55434 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 20:58:54 +00:00
Devang Patel
18bb2788a0
Do not apply the transformation if the target does not support DestTy natively.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 20:55:23 +00:00
Devang Patel
ff5d06d797
Backout 55429
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55432 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 20:51:49 +00:00
Dan Gohman
a318dabc0e
Fix FastISel's bitcast code for the case where getRegForValue fails.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55431 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 20:41:38 +00:00
Evan Cheng
df3b99381f
Refactor isSafeToReMat out of 2addr pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 20:33:50 +00:00
Devang Patel
9d2968c824
Add facility to create a target.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55429 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 20:00:27 +00:00
Owen Anderson
6336b70541
Use TargetLowering to get the types in fast isel, which handles pointer types correctly for our purposes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55428 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 18:58:30 +00:00
Dan Gohman
151ed61a2f
Don't check TLI.getOperationAction. The FastISel way is to
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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
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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.
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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.
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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.
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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
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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
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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
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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,
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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.
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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
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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
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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.
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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!
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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.
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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.
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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.
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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.
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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
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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.
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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
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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.
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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.
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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