Chris Lattner
fd64cbf22d
consolidate DenseMapInfo implementations, and add one for std::pair.
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Patch contributed by m-s.
llvm-svn: 55167
2008-08-22 05:08:25 +00:00
Dan Gohman
a398d11527
Factor out the predicate check code from DAGISelEmitter.cpp
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and use it in FastISelEmitter.cpp, and make FastISel
subtarget aware. Among other things, this lets it work
properly on x86 targets that don't have SSE, where it
successfully selects x87 instructions.
llvm-svn: 55156
2008-08-22 00:20:26 +00:00
Bill Wendling
c4c6053233
Remove tabs.
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llvm-svn: 55154
2008-08-22 00:04:26 +00:00
Owen Anderson
2e728c44d5
Remove unneeded #include.
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llvm-svn: 55134
2008-08-21 19:51:25 +00:00
Dan Gohman
07ec8e6f4a
Add libcalls for the new rounding opcodes.
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llvm-svn: 55133
2008-08-21 18:38:14 +00:00
Dan Gohman
b5635a2c51
Add libm-oriented ISD opcodes for rounding operations.
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llvm-svn: 55130
2008-08-21 17:55:02 +00:00
Dan Gohman
7c434de476
Have FastISel skip the multiply by 1 for getelementptr on i8*.
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llvm-svn: 55129
2008-08-21 17:37:05 +00:00
Dan Gohman
f4269f7bea
MVT::getMVT uses iPTR for pointer types, while we need the actual
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intptr_t type in this case. FastISel can now select simple
getelementptr instructions.
llvm-svn: 55125
2008-08-21 17:25:26 +00:00
Dan Gohman
512af985d7
Elements in DeadNodeSet are checked for use_empty() before they
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are actually deleted, so it's not necessary to remove re-used
nodes from the set.
llvm-svn: 55123
2008-08-21 16:24:54 +00:00
Dan Gohman
a6e647dd7c
Basic fast-isel support for instructions with constant int operands.
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llvm-svn: 55099
2008-08-21 01:41:07 +00:00
Evan Cheng
45c46520da
Type of first GEP operand is always the same as the target pointer type.
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llvm-svn: 55097
2008-08-21 01:19:11 +00:00
Owen Anderson
2c1d54952b
Use raw_ostream throughout the AsmPrinter.
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llvm-svn: 55092
2008-08-21 00:14:44 +00:00
Dan Gohman
71aa272ac4
Fix unused variable warnings.
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llvm-svn: 55089
2008-08-20 23:53:10 +00:00
Evan Cheng
c55f07023a
First cut, un-optimized (and untested) fast isel lowering of GetElementPtrInst.
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llvm-svn: 55085
2008-08-20 22:45:34 +00:00
Dan Gohman
50af19179b
Simplify the BuildMI calls even more.
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llvm-svn: 55077
2008-08-20 21:10:53 +00:00
Dan Gohman
ddebe95287
Simplify FastISel's constructor argument list, make the FastISel
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class hold a MachineRegisterInfo member, and make the
MachineBasicBlock be passed in to SelectInstructions rather
than the FastISel constructor.
llvm-svn: 55076
2008-08-20 21:05:57 +00:00
Dan Gohman
d8324c4066
Dump the instruction that foiled ISel even when -debug is not used.
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llvm-svn: 55075
2008-08-20 20:47:32 +00:00
Bill Wendling
42a2073ed4
Don't hoist instructions that define a physical register.
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llvm-svn: 55074
2008-08-20 20:32:05 +00:00
Dan Gohman
96efa9606f
Make more use of the BuildMI API.
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llvm-svn: 55072
2008-08-20 18:16:32 +00:00
Dan Gohman
3606d17592
Minor code reorganization.
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llvm-svn: 55071
2008-08-20 18:10:48 +00:00
Dan Gohman
44da988220
Minor whitespace cleanup.
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llvm-svn: 55070
2008-08-20 18:09:38 +00:00
Dan Gohman
9e5e42e0d5
Fix 80 column violation.
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llvm-svn: 55069
2008-08-20 18:09:02 +00:00
Evan Cheng
5ff34fa3b4
Kill off SimpleBBISel, it's replaced by FastISel.
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llvm-svn: 55067
2008-08-20 17:50:32 +00:00
Dan Gohman
00ddda96c9
Disable DAGCombine's alignment inference in "fast" codegen mode.
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llvm-svn: 55059
2008-08-20 16:30:28 +00:00
Dan Gohman
e1a5bc775e
Change the FoldingSetNodeID usage for objects which carry
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alignment and volatility information, such as loads and
stores, to reduce the number of integer values added to
the FoldingSetNodeID.
llvm-svn: 55058
2008-08-20 15:58:01 +00:00
Dan Gohman
22c225c022
Use BitVector instead of std::vector<unsigned char>.
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llvm-svn: 55054
2008-08-20 14:58:41 +00:00
Dan Gohman
7f2b41c9e2
Avoid an empty-if-body warning in release builds.
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llvm-svn: 55050
2008-08-20 14:00:56 +00:00
Dan Gohman
2555c4a2ca
Fix indentation.
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llvm-svn: 55049
2008-08-20 13:50:12 +00:00
Dan Gohman
d0da06c817
Fix FastISel to recognize that the last block in the function does
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not have a fall-through successor.
llvm-svn: 55033
2008-08-20 01:17:01 +00:00
Dan Gohman
472f4b49b6
Fix a leak in the FastISel code that Chris pointed out.
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llvm-svn: 55031
2008-08-20 00:56:17 +00:00
Dan Gohman
023bedddc4
Add support for running SelectionDAG if FastISel fails. This is under
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a command-line option, so that the default behavior is an abort, which
is useful for exposing code that isn't supported yet.
llvm-svn: 55028
2008-08-20 00:47:54 +00:00
Dan Gohman
f298c31918
Fix FastISel to recognize unhandled operands, such as constants
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that aren't available as virtual registers (for now).
llvm-svn: 55026
2008-08-20 00:35:17 +00:00
Dan Gohman
455abe7436
Add FastISel support for floating-point operations.
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llvm-svn: 55021
2008-08-20 00:23:20 +00:00
Dan Gohman
ce636764de
Add FastISel support for several more binary operators.
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llvm-svn: 55020
2008-08-20 00:11:48 +00:00
Dan Gohman
1b18b91296
Add code to call FastISel, and a command-line option to enable it.
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llvm-svn: 55015
2008-08-19 22:33:34 +00:00
Dan Gohman
25efe2087b
Support unconditional fall-through branches in FastISel.
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llvm-svn: 55014
2008-08-19 22:31:46 +00:00
Owen Anderson
5325218d4b
Allow the fast-path spilling code to attempt folding, but still leaving out remat and splitting.
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llvm-svn: 55012
2008-08-19 22:12:11 +00:00
Dan Gohman
7a23fc0fb0
Use the BuildMI overload that sets up a destination register
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instead of the one that doesn't and then adding it manually.
llvm-svn: 55006
2008-08-19 20:46:54 +00:00
Dan Gohman
564f3c6773
Handle the case where target-specific fastisel code doesn't have
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a desired opcode.
llvm-svn: 55005
2008-08-19 20:43:22 +00:00
Owen Anderson
b110ebd37d
The fast-path still needs to set kill markers and spill/restore points as appropriate.
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With this patch, all of MultiSource/Applications and all of SPEC2000/2006 pass with
the SimpleSpiller and this fast-path enabled.
llvm-svn: 55000
2008-08-19 20:09:52 +00:00
Gordon Henriksen
b7b9342e24
Delete a dead field.
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llvm-svn: 54995
2008-08-19 17:09:26 +00:00
Gordon Henriksen
c4e022d917
[PR2327] Leverage TargetRegisterInfo to compute frame offsets for GC metadata.
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llvm-svn: 54994
2008-08-19 17:06:35 +00:00
Chris Lattner
9f588f11f4
don't use the result of WriteTypeSymbolic or WriteAsOperand.
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llvm-svn: 54978
2008-08-19 04:44:30 +00:00
Owen Anderson
c68a43890f
Make SimpleSpiller respect subregister indices.
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llvm-svn: 54968
2008-08-19 01:05:33 +00:00
Owen Anderson
94b85d88da
Add a flag to enable the fast spilling path.
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llvm-svn: 54958
2008-08-19 00:17:30 +00:00
Owen Anderson
f7f555763d
Fix a few more bugs:
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1) Assign stack slots to new temporaries.
2) Don't insert an interval into the return vector more than once.
llvm-svn: 54956
2008-08-18 23:41:04 +00:00
Owen Anderson
0c22b6d22c
Fix several bugs in the new fast-path:
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1) Remove an incorrect assertion.
2) Set the stack slot weight properly.
3) Resize the VirtRegMap when needed.
llvm-svn: 54949
2008-08-18 21:20:32 +00:00
Owen Anderson
c25fc6fc35
Clients of addIntervalForSpills expect the added intervals to be returned sorted by starting index.
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llvm-svn: 54939
2008-08-18 19:52:22 +00:00
Owen Anderson
751ff13625
Simplify the fast-patch interval spilling by using MachineRegisterInfo::reg_iterator.
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llvm-svn: 54930
2008-08-18 18:38:12 +00:00
Owen Anderson
39bb486001
Resurrect some ancient code to add spill ranges without attempting folding, remat, or splitting. This code has been updated to current APIs
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in so far as it compiles and, in theory, works, but does not take advantage of recent advancements. For instance, it could be improved by using
MachineRegisterInfo::use_iterator.
llvm-svn: 54924
2008-08-18 18:05:32 +00:00