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5496 Commits

Author SHA1 Message Date
Chris Lattner
fd64cbf22d consolidate DenseMapInfo implementations, and add one for std::pair. 
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 
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. 
llvm-svn: 55154
 2008-08-22 00:04:26 +00:00
Owen Anderson
2e728c44d5 Remove unneeded #include. 
llvm-svn: 55134
 2008-08-21 19:51:25 +00:00
Dan Gohman
07ec8e6f4a Add libcalls for the new rounding opcodes. 
llvm-svn: 55133
 2008-08-21 18:38:14 +00:00
Dan Gohman
b5635a2c51 Add libm-oriented ISD opcodes for rounding operations. 
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*. 
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 
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 
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. 
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. 
llvm-svn: 55097
 2008-08-21 01:19:11 +00:00
Owen Anderson
2c1d54952b Use raw_ostream throughout the AsmPrinter. 
llvm-svn: 55092
 2008-08-21 00:14:44 +00:00
Dan Gohman
71aa272ac4 Fix unused variable warnings. 
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. 
llvm-svn: 55085
 2008-08-20 22:45:34 +00:00
Dan Gohman
50af19179b Simplify the BuildMI calls even more. 
llvm-svn: 55077
 2008-08-20 21:10:53 +00:00
Dan Gohman
ddebe95287 Simplify FastISel's constructor argument list, make the FastISel 
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. 
llvm-svn: 55075
 2008-08-20 20:47:32 +00:00
Bill Wendling
42a2073ed4 Don't hoist instructions that define a physical register. 
llvm-svn: 55074
 2008-08-20 20:32:05 +00:00
Dan Gohman
96efa9606f Make more use of the BuildMI API. 
llvm-svn: 55072
 2008-08-20 18:16:32 +00:00
Dan Gohman
3606d17592 Minor code reorganization. 
llvm-svn: 55071
 2008-08-20 18:10:48 +00:00
Dan Gohman
44da988220 Minor whitespace cleanup. 
llvm-svn: 55070
 2008-08-20 18:09:38 +00:00
Dan Gohman
9e5e42e0d5 Fix 80 column violation. 
llvm-svn: 55069
 2008-08-20 18:09:02 +00:00
Evan Cheng
5ff34fa3b4 Kill off SimpleBBISel, it's replaced by FastISel. 
llvm-svn: 55067
 2008-08-20 17:50:32 +00:00
Dan Gohman
00ddda96c9 Disable DAGCombine's alignment inference in "fast" codegen mode. 
llvm-svn: 55059
 2008-08-20 16:30:28 +00:00
Dan Gohman
e1a5bc775e Change the FoldingSetNodeID usage for objects which carry 
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>. 
llvm-svn: 55054
 2008-08-20 14:58:41 +00:00
Dan Gohman
7f2b41c9e2 Avoid an empty-if-body warning in release builds. 
llvm-svn: 55050
 2008-08-20 14:00:56 +00:00
Dan Gohman
2555c4a2ca Fix indentation. 
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 
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. 
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 
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 
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. 
llvm-svn: 55021
 2008-08-20 00:23:20 +00:00
Dan Gohman
ce636764de Add FastISel support for several more binary operators. 
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. 
llvm-svn: 55015
 2008-08-19 22:33:34 +00:00
Dan Gohman
25efe2087b Support unconditional fall-through branches in FastISel. 
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. 
llvm-svn: 55012
 2008-08-19 22:12:11 +00:00
Dan Gohman
7a23fc0fb0 Use the BuildMI overload that sets up a destination register 
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 
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. 
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. 
llvm-svn: 54995
 2008-08-19 17:09:26 +00:00
Gordon Henriksen
c4e022d917 [PR2327] Leverage TargetRegisterInfo to compute frame offsets for GC metadata. 
llvm-svn: 54994
 2008-08-19 17:06:35 +00:00
Chris Lattner
9f588f11f4 don't use the result of WriteTypeSymbolic or WriteAsOperand. 
llvm-svn: 54978
 2008-08-19 04:44:30 +00:00
Owen Anderson
c68a43890f Make SimpleSpiller respect subregister indices. 
llvm-svn: 54968
 2008-08-19 01:05:33 +00:00
Owen Anderson
94b85d88da Add a flag to enable the fast spilling path. 
llvm-svn: 54958
 2008-08-19 00:17:30 +00:00
Owen Anderson
f7f555763d Fix a few more bugs: 
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: 
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. 
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. 
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 
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