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Commit Graph

24532 Commits

Author SHA1 Message Date
Dale Johannesen
1cfbb25e75 Add ppc partial-word ATOMIC_CMP_SWAP.
llvm-svn: 55554
2008-08-30 00:08:53 +00:00
Evan Cheng
c1c53221c5 Swap fp comparison operands and change predicate to allow load folding (safely this time).
llvm-svn: 55553
2008-08-29 23:22:12 +00:00
Evan Cheng
a884330e08 Use static_cast instead of C style cast.
llvm-svn: 55552
2008-08-29 23:21:31 +00:00
Evan Cheng
9ee227f1df Fix 80 col. violations.
llvm-svn: 55551
2008-08-29 23:20:46 +00:00
Evan Cheng
2a3e05b519 Back out 55498. It broken Apple style bootstrapping.
llvm-svn: 55549
2008-08-29 22:21:44 +00:00
Evan Cheng
17382f9ffb Backing out 55521. Not safe.
llvm-svn: 55548
2008-08-29 22:13:21 +00:00
Dale Johannesen
bc977ce106 Add partial word version of ATOMIC_SWAP.
llvm-svn: 55546
2008-08-29 18:29:46 +00:00
Owen Anderson
3aa3841da2 Add initial support for fast isel of instructions that have inputs pinned to physical registers.
llvm-svn: 55545
2008-08-29 17:45:56 +00:00
Chris Lattner
a90998343b regenerate
llvm-svn: 55542
2008-08-29 17:20:18 +00:00
Chris Lattner
efbbbb0cde Asmprint nameless instructions as:
%4 = add ...

instead of:

add ...    ; 4

This makes opt -print-cfg output actually usable and makes .ll files
generally easier to read.  This fixes PR2480

llvm-svn: 55541
2008-08-29 17:19:30 +00:00
Chris Lattner
b23f7dae39 Add support for parsing .ll files that have numbers in front of
nameless values, such as:

%3 = add i32 4, 2

This fixes the first half of PR2480

llvm-svn: 55539
2008-08-29 17:12:13 +00:00
Evan Cheng
3fb02ae0b6 TableGen'ing instruction encodings.
llvm-svn: 55533
2008-08-29 07:42:03 +00:00
Evan Cheng
b38decd917 addrmode1 (data processing) instruction encoding: bits 5-6 are 0, bits 7-10 encode the opcode.
llvm-svn: 55531
2008-08-29 07:40:52 +00:00
Evan Cheng
5150e3da45 MVN is addrmode1.
llvm-svn: 55530
2008-08-29 07:36:24 +00:00
Evan Cheng
f90bc9a050 More refactoring.
llvm-svn: 55528
2008-08-29 06:41:12 +00:00
Evan Cheng
cdd06ba3f4 Swap fp comparison operands and change predicate to allow load folding.
llvm-svn: 55521
2008-08-28 23:48:31 +00:00
Evan Cheng
c50df85672 Refactor ARM instruction format definitions into a separate file. No functionality changes.
llvm-svn: 55518
2008-08-28 23:39:26 +00:00
Dan Gohman
c7b8401b77 Add a target callback for FastISel.
llvm-svn: 55512
2008-08-28 23:21:34 +00:00
Gabor Greif
5ec5f19852 remove tabs, fix > 80 cols
llvm-svn: 55511
2008-08-28 23:19:51 +00:00
Chris Lattner
673f4ce5f7 rename destroy -> releaseMemory to properly hook into passmgr.
llvm-svn: 55508
2008-08-28 22:56:53 +00:00
Nicolas Geoffray
05014c43fa Add support for JIT exceptions on Darwin. Since we're dealing with libgcc,
whose darwin code was written after the ability to dynamically register frames,
we need to do special hacks to make things work.

llvm-svn: 55507
2008-08-28 22:34:49 +00:00
Gabor Greif
86c795a8ca erect abstraction boundaries for accessing SDValue members, rename Val -> Node to reflect semantics
llvm-svn: 55504
2008-08-28 21:40:38 +00:00
Dan Gohman
481731693d Implement null and undef values for FastISel.
llvm-svn: 55500
2008-08-28 21:19:07 +00:00
Mon P Wang
7566974359 In lowering SELECT_CC, removed cases where we can't flip the true and false when the compare value has a NaN
llvm-svn: 55499
2008-08-28 21:04:05 +00:00
Dan Gohman
35a69c106a Optimize DAGCombiner's worklist processing. Previously it started
its work by putting all nodes in the worklist, requiring a big
dynamic allocation. Now, DAGCombiner just iterates over the AllNodes
list and maintains a worklist for nodes that are newly created or
need to be revisited. This allows the worklist to stay small in most
cases, so it can be a SmallVector.

This has the side effect of making DAGCombine not miss a folding
opportunity in alloca-align-rounding.ll.

llvm-svn: 55498
2008-08-28 21:01:56 +00:00
Dan Gohman
9a6f5b0bdd Move CaseBlock, JumpTable, and BitTestBlock to be members of
SelectionDAGLowering instead of being in an anonymous namespace.
This fixes warnings about SelectionDAGLowering having fields
using anonymous namespaces.

llvm-svn: 55497
2008-08-28 20:38:18 +00:00
Dan Gohman
f8e43fa400 Fix a FastISel bug where the instructions from lowering the arguments
were being emitted after the first instructions of the entry block.

llvm-svn: 55496
2008-08-28 20:28:56 +00:00
Rafael Espindola
1cd4fc3111 Use resize instead of reserve. Reserve doesn't change size().
llvm-svn: 55486
2008-08-28 18:32:53 +00:00
Rafael Espindola
31c516aabe Reduce the size of the Parts vector.
llvm-svn: 55483
2008-08-28 18:29:58 +00:00
Owen Anderson
675ace60a1 Hook up support for fast-isel of trunc instructions, using the newly working support for EXTRACT_SUBREG.
llvm-svn: 55482
2008-08-28 18:26:01 +00:00
Dale Johannesen
e9a1266213 Implement partial-word binary atomics on ppc.
llvm-svn: 55478
2008-08-28 17:53:09 +00:00
Owen Anderson
8c991b6f8a FastEmitInst_extractsubreg doesn't need to be passed the register class. It can get it from MachineRegisterInfo instead.
llvm-svn: 55476
2008-08-28 17:47:37 +00:00
Dan Gohman
8f4d612996 Revert r55467; it causes regressions in UnitTests/Vector/divides,
Benchmarks/sim/sim, and others on x86-64.

llvm-svn: 55475
2008-08-28 17:22:54 +00:00
Rafael Espindola
17b967216a Correctly resize the Parts array.
llvm-svn: 55471
2008-08-28 14:24:45 +00:00
Evan Cheng
28b0b18082 If a copy isn't coalesced, but its src is defined by trivial computation. Re-materialize the src to replace the copy.
llvm-svn: 55467
2008-08-28 07:53:51 +00:00
Evan Cheng
419506a149 FsFLD0S{S|D} and V_SETALLONES are as cheap as moves.
llvm-svn: 55466
2008-08-28 07:52:25 +00:00
Chris Lattner
bd43eec286 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 ;-)

llvm-svn: 55460
2008-08-28 04:02:44 +00:00
Chris Lattner
460b89cb3a Clear the intervals list in "destroy", patch by
Prakash Prabhu!

llvm-svn: 55458
2008-08-28 03:33:03 +00:00
Dale Johannesen
490c016734 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.

llvm-svn: 55457
2008-08-28 02:44:49 +00:00
Dan Gohman
3a89011a01 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.

llvm-svn: 55450
2008-08-27 23:52:12 +00:00
Owen Anderson
bb32ae5803 Add a helper method that will be used to support EXTRACT_SUBREG for selecting trunc's in fast-isel.
llvm-svn: 55439
2008-08-27 22:30:02 +00:00
Bill Wendling
0b5b31a0be Make "movdq2q" and "movq2dq" dependent upon having SSE2 because they use the
SSE2 registers as well as the MMX registers.

llvm-svn: 55436
2008-08-27 21:32:04 +00:00
Bill Wendling
84547c2a09 Put file scoped constants in an anonymous namespace. Use the "using namespace
llvm" for consistency.

llvm-svn: 55435
2008-08-27 21:10:13 +00:00
Evan Cheng
cf2cb4da82 Move the check whether it's worth remating to caller.
llvm-svn: 55434
2008-08-27 20:58:54 +00:00
Devang Patel
7abe1944ae Do not apply the transformation if the target does not support DestTy natively.
llvm-svn: 55433
2008-08-27 20:55:23 +00:00
Dan Gohman
9e928e0b1f Fix FastISel's bitcast code for the case where getRegForValue fails.
llvm-svn: 55431
2008-08-27 20:41:38 +00:00
Evan Cheng
dc202f4bba Refactor isSafeToReMat out of 2addr pass.
llvm-svn: 55430
2008-08-27 20:33:50 +00:00
Owen Anderson
0b1a8af290 Use TargetLowering to get the types in fast isel, which handles pointer types correctly for our purposes.
llvm-svn: 55428
2008-08-27 18:58:30 +00:00
Dan Gohman
b76e1ca974 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.

llvm-svn: 55427
2008-08-27 18:15:05 +00:00
Dan Gohman
d5e34d9dce 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.

llvm-svn: 55426
2008-08-27 18:10:19 +00:00