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Author SHA1 Message Date
Evan Cheng
66e13153bd FsFLD0S{S|D} and V_SETALLONES are as cheap as moves. 
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 
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 
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. 
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. 
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. 
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 
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. 
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 
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 
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. 
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. 
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 
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. 
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. 
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. 
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. 
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 
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