Commit Graph

8347 Commits

Author SHA1 Message Date
Dan Gohman
277207e6cb Simplify this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 21:30:55 +00:00
Dan Gohman
75ae593a27 Print the debug info line and column in MachineInstr::print even when there's
no filename. This situation is apparently fairly common right now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89701 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 21:29:08 +00:00
Devang Patel
05f6fa874e Revert r89487.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89686 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 18:43:37 +00:00
Dan Gohman
5fca8b1c8d Move CopyCatchInfo into FunctionLoweringInfo.cpp too, for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89683 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 18:12:11 +00:00
Dan Gohman
2048b85c7c Rename SelectionDAGLowering to SelectionDAGBuilder, and rename
SelectionDAGBuild.cpp to SelectionDAGBuilder.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89681 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 18:04:58 +00:00
Dan Gohman
f9bd450a10 Move RegsForValue to an anonymous namespace, since it is only used
in this file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89675 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 17:46:23 +00:00
Dan Gohman
66336edf82 Move some more code out of SelectionDAGBuild.cpp and into
FunctionLoweringInfo.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89674 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 17:42:46 +00:00
Ted Kremenek
9977ed0290 Update CMake file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 17:26:04 +00:00
Dan Gohman
6277eb2bb9 Move the FunctionLoweringInfo class and some related utility functions out
of SelectionDAGBuild.h/cpp into its own files, to help separate
general lowering logic from SelectionDAG-specific lowering logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89667 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 17:16:22 +00:00
Nick Lewycky
ce2c51b670 Pull LLVMContext out of PromoteMemToReg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89645 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 03:50:44 +00:00
Jim Grosbach
a2f20b20a8 Add getFrameIndexReference() to TargetRegisterInfo, which allows targets to
tell debug info which base register to use to reference a frame index on a
per-index basis. This is useful, for example, in the presence of dynamic
stack realignment when local variables are indexed via the stack pointer and
stack-based arguments via the frame pointer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89620 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-22 20:14:00 +00:00
Jim Grosbach
7ab38dfccb 80-column cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89612 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-22 19:20:36 +00:00
Jakob Stoklund Olesen
e0239930eb Teach MachineBasicBlock::updateTerminator() to handle a failing TII->ReverseBranchCondition(Cond) call.
This fixes the MallocBench/cfrac test case regression.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89608 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-22 18:28:04 +00:00
Jim Grosbach
31ef40e940 remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89567 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 23:12:12 +00:00
Evan Cheng
e54cb16308 Allow target to disable if-converting predicable instructions. e.g. NEON instructions under ARM mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89541 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 06:20:26 +00:00
Devang Patel
2c4ceb177b Cosmetic changes, which were long overdue, in DwarfDebug.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 02:48:08 +00:00
Devang Patel
bef8888a91 We are not using DBG_STOPPOINT anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89536 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 02:46:55 +00:00
Jakob Stoklund Olesen
323d8c3ed7 Be more clever about calculating live variables through new basic blocks.
When splitting a critical edge, the registers live through the edge are:

- Used in a PHI instruction, or
- Live out from the predecessor, and
- Live in to the successor.

This allows the coalescer to eliminate even more phi joins.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89530 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 02:05:21 +00:00
Devang Patel
9bff5cbae8 Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89522 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 00:54:03 +00:00
Dale Johannesen
5b8bce11d6 When generating a vector the really slow way, via loads
and stores, handle the case where the element size is not
a valid target type correctly (PPC).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89521 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 00:53:23 +00:00
Devang Patel
6f01d9c2f0 There is no need to use FoldingSet to unique DIEs.
DIEs are created from MDNode, which are already uniqued. And DwarfDebug already uses ValueMaps to find and use existing DIE for a given MDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89518 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 00:31:03 +00:00
David Goodwin
00621efb40 Restructure code to allow renaming of multiple-register groups for anti-dep breaking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89511 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 23:33:54 +00:00
Evan Cheng
c26abd9487 Enable hoisting load from constant memories.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 23:31:34 +00:00
Dan Gohman
29cbade25a Target-independent support for TargetFlags on BlockAddress operands,
and support for blockaddresses in x86-32 PIC mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89506 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 23:18:13 +00:00
Devang Patel
017d121c59 Do not hold on to a map slot while new entries may be inserted into the map.
Use ValueMap, instead of std::map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89490 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 21:37:22 +00:00
David Greene
a96fc2f3ad Cleanups.
Make things a little more efficient as suggested by Evan.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89489 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 21:13:27 +00:00
Devang Patel
1f37b5b3af There is no need to emit source location info for DW_TAG_pointer_type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89487 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 21:05:37 +00:00
Evan Cheng
87b75ba75e Add option -licm-const-load to hoist all loads from constant memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 19:55:37 +00:00
David Goodwin
557bbe6b5d Remove some old experimental code that is no longer needed. Remove additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89471 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 19:32:48 +00:00
Jakob Stoklund Olesen
6cd8103bea More consistent labelling of basic blocks in debug output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89470 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 18:54:59 +00:00
Duncan Sands
c088ae8b84 Fix PR5558, which was caused by a wrong fix for PR3393 (see commit 63048),
which was an expensive checks failure due to a bug in the checking.  This
patch in essence reverts the original fix for PR3393, and refixes it by a
tweak to the way expensive checking is done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 10:45:10 +00:00
Dan Gohman
b4afb137ef Fix fast-isel to avoid selecting the return instruction if a
tail call has been encountered.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89444 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 02:51:26 +00:00
Dan Gohman
2e7e94826a Add an experimental option to run gep-splitting and no-load GVN
just before codegen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89439 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 02:03:44 +00:00
Jakob Stoklund Olesen
324da7647c Add MachineBasicBlock::getName, and use it in place of getBasicBlock()->getName.
Fix debug code that assumes getBasicBlock never returns NULL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89428 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 01:17:03 +00:00
Lang Hames
8783e401a3 Removed references to LiveStacks from Spiller.* . They're no longer needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89422 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 00:53:30 +00:00
David Goodwin
3e72d301e0 Fix a couple of problems with maintaining liveness information for antidep breaking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89404 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 23:12:37 +00:00
Jakob Stoklund Olesen
160069d15a Place new basic blocks immediately after their predecessor when splitting
critical edges in PHIElimination.

This has a huge impact on regalloc performance, and we recover almost all of
the 10% compile time regression that edge splitting introduced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89381 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 19:42:16 +00:00
Bill Wendling
fb7634f1c7 Reverting the EH table patches.
$ svn merge -c -89279 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r89279 into '.':
U    lib/CodeGen/AsmPrinter/DwarfException.cpp
U    lib/Target/TargetLoweringObjectFile.cpp
$ svn merge -c -89270 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r89270 into '.':
G    lib/CodeGen/AsmPrinter/DwarfException.cpp
G    lib/Target/TargetLoweringObjectFile.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 19:21:09 +00:00
David Greene
feb5bfbc6b Fix a small bug.
Fix one case we missed to make sure we reserve registers from
allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 19:09:39 +00:00
David Greene
7cfd336af6 Add support for spreading register allocation.
Add a -linearscan-skip-count argument (default to 0) that tells the
allocator to remember the last N registers it allocated and skip them
when looking for a register candidate.  This tends to spread out
register usage and free up post-allocation scheduling at the cost of
slightly more register pressure.  The primary benefit is the ability
to backschedule reloads.

This is turned off by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89356 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 15:55:49 +00:00
Lang Hames
835ca07991 Added a new Spiller implementation which wraps LiveIntervals::addIntervalsForSpills.
All spiller calls in RegAllocLinearScan now go through the new Spiller interface.
The "-new-spill-framework" command line option has been removed. To use the trivial in-place spiller you should now pass "-spiller=trivial -rewriter=trivial".
(Note the trivial spiller/rewriter are only meant to serve as examples of the new in-place modification work. Enabling them will yield terrible, though hopefully functional, code).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 04:15:33 +00:00
Bill Wendling
01c69374b5 The "ReadOnlyWithRel" enum seems to apply more to what Darwin does with the EH
exception table than DataRel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 00:09:14 +00:00
Bob Wilson
fbb6b67df0 There should be no need to keep renumbering blocks during tail duplication.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89275 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 23:48:57 +00:00
Bill Wendling
ec04458551 Attempt #2:
Place the EH table in the __TEXT section on MachO. It saves space.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89270 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 23:18:46 +00:00
Bob Wilson
60f34b9fb0 Tail duplication still needs to iterate. Duplicating new instructions onto
the tail of a block may make that block a new candidate for duplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89264 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 22:52:37 +00:00
Bob Wilson
79d621035e Add another statistic to measure code size due to tail duplication.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89254 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 22:12:31 +00:00
Jakob Stoklund Olesen
0b25ae1afb Fix PR5300.
When TwoAddressInstructionPass deletes a dead instruction, make sure that all
register kills are accounted for. The 2-addr register does not get special
treatment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89246 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 21:33:35 +00:00
Jakob Stoklund Olesen
8f16e02fc9 Allow the machine verifier to be run outside the PassManager.
Verify LiveVariables information when present.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89241 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 20:36:57 +00:00
Jakob Stoklund Olesen
1e78aa445c Remove the -early-coalescing option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89240 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 20:36:47 +00:00
Lang Hames
38283e23df Fixed the in-place spiller and trivial rewriter, which had been broken by the recent SlotIndexes work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89238 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 20:31:20 +00:00