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Author SHA1 Message Date
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
f24550c9d2 allow this to pass. 
llvm-svn: 55540
 2008-08-29 17:18:26 +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
Daniel Dunbar
8a2cc13fb3 Add GlobalValue::{removeFromParent,eraseFromParent} 
llvm-svn: 55529
 2008-08-29 07:30:15 +00:00
Evan Cheng
f90bc9a050 More refactoring. 
llvm-svn: 55528
 2008-08-29 06:41:12 +00:00
Daniel Dunbar
1b3e44db87 Add DenseMap::lookup: 
/// lookup - Return the entry for the specified key, or a default
  /// constructed value if no such entry exists.

llvm-svn: 55523
 2008-08-29 00:48:44 +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
Bill Wendling
96d5d65b1d Add another description to my entry. 
llvm-svn: 55510
 2008-08-28 23:16:37 +00:00
Gabor Greif
de8ed9f431 just a brain dump for a small tool 
that brings us to 80-col violations
or tabs.

Usage:
  visit-violations <file>

At the moment it outputs editor invocations.

llvm-svn: 55509
 2008-08-28 23:15:28 +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
c3711501ef fix the output dumbness I have introduced some time ago 
llvm-svn: 55506
 2008-08-28 22:32:39 +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
Owen Anderson
a5b87bf7e2 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. 
llvm-svn: 55480
 2008-08-28 18:06:12 +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
Dale Johannesen
ae522b8463 This test crashes on non-x86 host; make SSE explicit. 
Feel free to fix a better way!

llvm-svn: 55456
 2008-08-28 01:51:09 +00:00
Dan Gohman
e60a9d002f Fix a missing #include. Patch by Andrew John Hughes. 
llvm-svn: 55451
 2008-08-28 00:20:07 +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
Devang Patel
c4040a69b7 Backout 55429 
llvm-svn: 55432
 2008-08-27 20:51:49 +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
Devang Patel
369cc38542 Add facility to create a target. 
llvm-svn: 55429
 2008-08-27 20:00:27 +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