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1046 Commits

Author SHA1 Message Date
Krzysztof Parzyszek
7ec3ade80f [Hexagon] Use general purpose registers to spill pred/mod registers into 
Patch by Tobias Edler Von Koch.

llvm-svn: 258527
 2016-01-22 19:15:58 +00:00
Krzysztof Parzyszek
50ddbf8f06 PR26172: unnecessary indirection in HexagonCopyToCombine.cpp 
llvm-svn: 258395
 2016-01-21 12:45:17 +00:00
Simon Pilgrim
269ccdb97d Fixed MSVC Win64 warning of implicit conversion of 32-bit shift to 64-bits. 
llvm-svn: 258084
 2016-01-18 21:11:19 +00:00
Krzysztof Parzyszek
c8377aa82b [Hexagon] Recognize more copy-equivalents in RDF optimizations 
llvm-svn: 258076
 2016-01-18 20:45:51 +00:00
Krzysztof Parzyszek
7ff439af60 [RDF] Improvements to copy propagation 
- Allow any instruction to define equality between registers.
- Keep the DFG updated.

llvm-svn: 258075
 2016-01-18 20:43:57 +00:00
Krzysztof Parzyszek
fa20b3ad96 [RDF] Improve compile-time performance of dead code elimination 
llvm-svn: 258074
 2016-01-18 20:42:47 +00:00
Krzysztof Parzyszek
a9c1a4bbfd [RDF] Allow unlinking ref nodes from data-flow chains only 
llvm-svn: 258073
 2016-01-18 20:41:34 +00:00
Manuel Jacob
e6438acb66 GlobalValue: use getValueType() instead of getType()->getPointerElementType(). 
Reviewers: mjacob

Subscribers: jholewinski, arsenm, dsanders, dblaikie

Patch by Eduard Burtescu.

Differential Revision: http://reviews.llvm.org/D16260

llvm-svn: 257999
 2016-01-16 20:30:46 +00:00
Krzysztof Parzyszek
c2a984edbb [Hexagon] Generate CONST64 when optimizing for size in copy-to-combine 
llvm-svn: 257891
 2016-01-15 14:08:31 +00:00
Krzysztof Parzyszek
ccc8f74189 [Hexagon] Handle DBG_VALUE instructions in copy-to-combine 
llvm-svn: 257890
 2016-01-15 13:55:57 +00:00
Krzysztof Parzyszek
bccfe64a1e [Hexagon] Use S2_lsr_i_r instead of S2_extractu to obtain upper halfword 
llvm-svn: 257815
 2016-01-14 21:59:22 +00:00
Krzysztof Parzyszek
d9129a3d14 [Hexagon] Handle HVX registers in bit simplification 
llvm-svn: 257811
 2016-01-14 21:45:43 +00:00
Rui Ueyama
dca64dbccc Update to use new name alignTo(). 
llvm-svn: 257804
 2016-01-14 21:06:47 +00:00
Krzysztof Parzyszek
3c4fc74899 [Hexagon] Expand pseudo instruction Insert4 
llvm-svn: 257771
 2016-01-14 15:37:16 +00:00
Krzysztof Parzyszek
5b1b8914af [Hexagon] Handle branches with non-mbb operands 
llvm-svn: 257768
 2016-01-14 15:05:27 +00:00
Rafael Espindola
7f81c885ac Convert a few assert failures into proper errors. 
Fixes PR25944.

llvm-svn: 257697
 2016-01-13 22:56:57 +00:00
Krzysztof Parzyszek
7f3bfe7d2f [Hexagon] Fix the options controlling jump table generation 
llvm-svn: 257679
 2016-01-13 21:43:13 +00:00
Krzysztof Parzyszek
d9323342be [Hexagon] Do not insert non-phis before phis in bit simplification 
llvm-svn: 257606
 2016-01-13 15:48:18 +00:00
Krzysztof Parzyszek
9eca362658 Replace inherited constructor with an explicit one 
Some bots failed when the inherited constructor was used.

llvm-svn: 257508
 2016-01-12 19:27:59 +00:00
Krzysztof Parzyszek
ce7b184512 [Hexagon] Implement RDF-based post-RA optimizations 
- Handle simple cases of register copies (what current RDF CP allows).
- Hexagon-specific dead code elimination: handles dead address updates
  in post-increment instructions.

llvm-svn: 257504
 2016-01-12 19:09:01 +00:00
Krzysztof Parzyszek
8ef90fe4f8 RDF: Copy propagation 
This is a very limited implementation of DFG-based copy propagation.
It only handles actual COPY instructions (does not handle other equivalents
such as add-immediate with a 0 operand).
The major limitation is that it does not update the DFG: that will be the
change required to make it more robust (hopefully coming up soon).

llvm-svn: 257490
 2016-01-12 17:23:48 +00:00
Krzysztof Parzyszek
3a4051fd2e RDF: Dead code elimination 
Utility class to perform DFG-based dead code elimination.

llvm-svn: 257485
 2016-01-12 17:01:16 +00:00
Krzysztof Parzyszek
0ef8e6d23c Fix compiler warnings from r257477 
llvm-svn: 257483
 2016-01-12 16:51:55 +00:00
Krzysztof Parzyszek
e67e1b7be9 RDF: Implement register liveness analysis 
Compute block live-ins and operand kill flags from the DFG.

llvm-svn: 257480
 2016-01-12 15:56:33 +00:00
Krzysztof Parzyszek
c0119537d0 Register Data Flow: data flow graph 
Target independent, SSA-based data flow framework for representing
data flow between physical registers.

This commit implements the creation of the actual data flow graph.

llvm-svn: 257477
 2016-01-12 15:09:49 +00:00
Benjamin Kramer
8a32d80124 [Hexagon] Make helper function static. NFC. 
llvm-svn: 257476
 2016-01-12 14:58:49 +00:00
Krzysztof Parzyszek
e8a7ebcd1a [Hexagon] Add check for nullptr in getFixupNoBits 
llvm-svn: 257338
 2016-01-11 15:51:53 +00:00
Krzysztof Parzyszek
c902c4f38a [Hexagon] Add implicit uses of GP to GP-relative loads and stores 
llvm-svn: 257337
 2016-01-11 15:49:58 +00:00
Krzysztof Parzyszek
438a5799b1 [Hexagon] Mark D14 and GP as reserved registers 
llvm-svn: 257336
 2016-01-11 15:47:41 +00:00
Tobias Edler von Koch
18c138a981 [Hexagon] Replace a static member variable in HexagonCVIResource (NFC) 
This creates one instance of TUL per HexagonShuffler, which avoids thread-safety
issues with future changes.

llvm-svn: 257215
 2016-01-08 22:07:25 +00:00
Krzysztof Parzyszek
787f659237 [Hexagon] Add system instructions for cache manipulation 
llvm-svn: 256936
 2016-01-06 14:22:22 +00:00
Craig Topper
efc9b3c5bb [TableGen] Modify the AsmMatcherEmitter to only apply the table growth from r252440 to the Hexagon target. 
This restores the previous behavior of not including the mnemonic in the classes table for every target that starts instruction lines with the mnemonic. Not only did the table size increase by 1 entry, but the class enum increased in size which caused every class in the array to increase in size. It also grew the size of the function that parsers tokens into classes by a substantial amount.

This adds a new HasMnemonicFirst flag to all AsmParsers. It's set to 1 by default and Hexagon target overrides it to 0.

For the X86 target alone this recovers 324KB of size on the llvm-mc executable.

I believe the current state is still a bad design choice for the Hexagon target as it causes most of the parsing to do a linear search through the entire match table to comparing operands against every instruction until it finds one that works. At least for the other targets we do a binary search based on mnemonic over which to do the linear scan.

llvm-svn: 256669
 2015-12-31 08:18:23 +00:00
Krzysztof Parzyszek
05b71c2abd [Hexagon] Add PIC support 
llvm-svn: 256025
 2015-12-18 20:19:30 +00:00
Krzysztof Parzyszek
f373b2ef1b [Hexagon] Misc fixes to r255807 
llvm-svn: 255811
 2015-12-16 20:07:04 +00:00
Krzysztof Parzyszek
dd2bf3bd45 [Hexagon] Update the Hexagon packetizer 
llvm-svn: 255807
 2015-12-16 19:36:12 +00:00
Tobias Edler von Koch
ad6347a9fa [Hexagon] Make memcpy lowering thread-safe 
This removes an unpleasant hack involving a global variable for special
lowering of certain memcpy calls. These are now lowered as intended in
EmitTargetCodeForMemcpy in the same way that other targets do it.

llvm-svn: 255785
 2015-12-16 17:29:37 +00:00
Krzysztof Parzyszek
70855cd8f0 [Hexagon] Preprocess mapped instructions before lowering to MC 
llvm-svn: 255653
 2015-12-15 17:05:45 +00:00
Krzysztof Parzyszek
0ea913c715 [Hexagon] Add "const" to function parameters in HexagonInstrInfo 
llvm-svn: 255544
 2015-12-14 21:32:25 +00:00
Krzysztof Parzyszek
0cb4e2fced [Packetizer] Add AliasAnalysis as a parameter to the packetizer 
This will make the depedence graph more accurate if an alias analysis
is provided. If nullptr is specified in its place, the behavior will
remain as it is currently.

llvm-svn: 255540
 2015-12-14 20:35:13 +00:00
Krzysztof Parzyszek
73ad4fb9e3 Add "const" to function arguments in DFAPacketizer 
llvm-svn: 255526
 2015-12-14 18:54:44 +00:00
Krzysztof Parzyszek
c30f62080a [Hexagon] Subtarget features/default CPU corrections 
llvm-svn: 255501
 2015-12-14 15:03:54 +00:00
Cong Hou
b76a7a8dcb Normalize MBB's successors' probabilities in several locations. 
This patch adds some missing calls to MBB::normalizeSuccProbs() in several
locations where it should be called. Those places are found by checking if the
sum of successors' probabilities is approximate one in MachineBlockPlacement
pass with some instrumented code (not in this patch).


Differential revision: http://reviews.llvm.org/D15259

llvm-svn: 255455
 2015-12-13 09:26:17 +00:00
Ron Lieberman
f0e82b2c63 [Hexagon] Add NewValueJump support for C4_cmpneq, C4_cmplte, C4_cmplteu 
llvm-svn: 255027
 2015-12-08 16:28:32 +00:00
Sanjay Patel
51a4d88a44 fix 'the the '; NFC 
llvm-svn: 254928
 2015-12-07 19:21:39 +00:00
Craig Topper
55a007dfc9 Use make_range to reduce mentions of iterator type. NFC 
llvm-svn: 254872
 2015-12-06 05:08:07 +00:00
Craig Topper
33355ae4ca [Hexagon] Don't call getNumImplicitDefs and then iterate over the count. getNumImplicitDefs contains a loop so its better to just loop over the null terminated implicit def list. NFC 
llvm-svn: 254852
 2015-12-05 17:34:07 +00:00
Craig Topper
bf1c629225 Replace uint16_t with the MCPhysReg typedef in many places. A lot of physical register arrays already use this typedef. 
llvm-svn: 254843
 2015-12-05 07:13:35 +00:00
Krzysztof Parzyszek
9969382578 [Hexagon] Simplify LowerCONCAT_VECTORS, handle different types better 
llvm-svn: 254724
 2015-12-04 16:18:15 +00:00
Colin LeMahieu
6dbeb3981c [Hexagon] Using multiply instead of shift on signed number which can be UB 
llvm-svn: 254719
 2015-12-04 15:48:45 +00:00
Colin LeMahieu
6fa2fb1266 [Hexagon] Adding shuffling resources for HVX instructions and tests for instruction encodings. 
llvm-svn: 254652
 2015-12-03 21:44:28 +00:00