af1d8ca44a
Get rid of the EdgeMapping map. Instead, just check for BasicBlock
...
changes before doing phi lowering for switches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102809 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01 00:01:06 +00:00
8295d4c96c
As a temporary workaround for post-RA not handling DebugValue instructions,
...
just remove them all. Radar 7873207 (working around the root problem of
Radar 7759363).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101604 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17 00:49:11 +00:00
8b3d6682a4
Remove a #include.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101043 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12 16:26:03 +00:00
b0812f114b
Fix some more places where dbg_value affected codegen.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97765 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 00:02:59 +00:00
e1b2129471
Change errs() to dbgs().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92594 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:26:01 +00:00
990d285765
<rdar://problem/7453528>. Track only physical registers that are valid for the target.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90970 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-09 17:18:22 +00:00
15d75d9f11
Don't hang on to pointers or references after vector::push_back.
...
The MO reference to a MachineOperand can be invalidated by
MachineInstr::addOperand. Don't even use it for debugging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90381 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 01:49:56 +00:00
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
87d21b92fc
Allow target to specify regclass for which antideps will only be broken along the critical path.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 19:52:48 +00:00
12dd99dc30
Rename registers to break output dependencies in addition to anti-dependencies.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87015 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 19:08:21 +00:00
c2e8a7e8d2
Fixed to address code review. No functional changes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86634 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 00:48:55 +00:00
0855dee564
Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86628 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 00:15:47 +00:00
54097836f3
Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 01:19:35 +00:00
4de099d8ca
Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85939 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 20:57:50 +00:00
0ba90f3e34
Make -print-machineinstrs more readable.
...
- Be consistent when referring to MachineBasicBlocks: BB#0.
- Be consistent when referring to virtual registers: %reg1024.
- Be consistent when referring to unknown physical registers: %physreg10.
- Be consistent when referring to known physical registers: %RAX
- Be consistent when referring to register 0: %reg0
- Be consistent when printing alignments: align=16
- Print jump table contents.
- Don't print host addresses, in general.
- and various other cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:19:03 +00:00
82c7248518
Make AntiDepReg.h internal.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85412 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 18:29:54 +00:00
e10deca33e
Allow the aggressive anti-dep breaker to process the same region multiple times. This is necessary because new anti-dependencies are exposed when "current" ones are broken.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85166 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:31:16 +00:00
ada0ef86d9
Define virtual destructor in *.cpp file.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85146 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 19:41:00 +00:00
348777110a
Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 19:32:42 +00:00
2e7be612d5
Break anti-dependence breaking out into its own class.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85127 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 16:59:04 +00:00
f5a86f45e7
Remove includes of Support/Compiler.h that are no longer needed after the
...
VISIBILITY_HIDDEN removal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85043 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 06:57:41 +00:00
6726b6d75a
Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
...
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 06:33:48 +00:00
4c3715c2e5
Allow the target to select the level of anti-dependence breaking that should be performed by the post-RA scheduler. The default is none.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84911 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-22 23:19:17 +00:00
c1ae8c9b8f
Revert r84658 and r84691. They were causing llvm-gcc bootstrap to fail.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84727 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-21 01:44:44 +00:00
7441d14873
Respect src register allocation requirements when breaking anti-dependencies. Remove some dead code.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84691 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-20 22:50:43 +00:00
480c529e02
Checkpoint more aggressive anti-dependency breaking for post-ra scheduler.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84658 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-20 19:54:44 +00:00
fa16354e03
Change createPostRAScheduler so it can be turned off at llc -O1.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16 21:06:15 +00:00
c83da2f9e3
If post-alloc scheduler is not enabled, it should return false, not true.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84248 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16 06:10:34 +00:00
d452ea6a64
Add debugging output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84011 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13 19:16:03 +00:00
5bf7c2a346
Fix a missing initialization of PostRAScheduler's AA member.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83695 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10 00:15:38 +00:00
a70dca156f
Factor out LiveIntervalAnalysis' code to determine whether an instruction
...
is trivially rematerializable and integrate it into
TargetInstrInfo::isTriviallyReMaterializable. This way, all places that
need to know whether an instruction is rematerializable will get the
same answer.
This enables the useful parts of the aggressive-remat option by
default -- using AliasAnalysis to determine whether a memory location
is invariant, and removes the questionable parts -- rematting operations
with virtual register inputs that may not be live everywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83687 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09 23:27:56 +00:00
8bff4af612
Fix a use-after-free in post-ra-scheduling.
...
MI->addOperand invalidates references to it's operands, avoid touching
the operand after a new one was added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83249 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-02 15:59:52 +00:00
63bcbb72f7
All callee-saved registers are live-out of a return block.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83223 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01 23:28:47 +00:00
9843a93e83
Remove neonfp attribute and instead set default based on CPU string. Add -arm-use-neon-fp to override the default.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83218 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01 22:19:57 +00:00
471850ab84
Restore the -post-RA-scheduler flag as an override for the target specification. Remove -mattr for setting PostRAScheduler enable and instead use CPU string.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83215 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01 21:46:35 +00:00
c7951f8e09
Use MachineFrameInfo.getPristineRegs() to determine which callee-saved registers are available for anti-dependency breaking. Some cleanup.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83208 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01 19:45:32 +00:00
714e8bc1fc
Observe hasExtraSrcRegAllocReq and hasExtraDefRegAllocReq. Do not change
...
operands of instructions with these properties while breaking anti-dep.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83198 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01 08:26:23 +00:00
c277ab08a2
Fix integer overflow in instruction scheduling. This can happen if we have
...
basic blocks that are so long that their size overflows a short.
Also assert that overflow does not happen in the future, as requested by Evan.
This fixes PR4401.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83159 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30 20:15:38 +00:00
0dad89fa94
Remove -post-RA-schedule flag and add a TargetSubtarget method to enable post-register-allocation scheduling. By default it is off. For ARM, enable/disable with -mattr=+/-postrasched. Enable by default for cortex-a8.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83122 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30 00:10:16 +00:00
544df3651e
Use KILL instead of IMPLICIT_DEF in LowerSubregs pass.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83007 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-28 20:32:46 +00:00
8f909345bc
Fix bug in kill flag updating for post-register-allocation scheduling. When the kill flag of a superreg needs to be cleared because there are one or more subregs live, we instead add implicit-defs of those subregs and leave the kill flag on the superreg. This allows us to end the live-range of the superreg without ending the live-ranges of the subregs.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82629 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-23 16:35:25 +00:00
fb2e752e41
Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes.
...
Not functionality change yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-18 21:02:19 +00:00
be441c0f34
It's a bool, so treat it like one. Fixes a MSVC warning.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81112 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06 12:10:17 +00:00
5e41178a6e
Create our own block initializer for kill fixups as the scheduling one wasn't doing the right thing.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80958 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03 22:15:25 +00:00
1f15228398
Add hidden flags to allow binary search of post-RA scheduling errors.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 18:34:03 +00:00
a3251db21a
Don't mark a register live at an undef use.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80621 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 20:47:02 +00:00
7886cd85b2
Another stab at fixing up register kill flags after post-RA scheduling.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80410 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-29 00:11:13 +00:00
88a589c4b3
Fixup register kills after scheduling.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80002 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 17:03:05 +00:00
103289e938
convert LoopInfo.h and GraphWriter.h to use raw_ostream
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 07:19:13 +00:00
2ffb0ce7dc
Fix counting of Post-RA scheduling stalls. Improve debug output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78843 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12 21:47:46 +00:00
