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38 Commits

Author SHA1 Message Date
Evan Cheng
5b1b4489cf Rename TargetSubtarget to TargetSubtargetInfo for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134259 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-01 21:01:15 +00:00
Evan Cheng
15993f83a4 More refactoring. Move getRegClass from TargetOperandInfo to TargetInstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133944 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-27 21:26:13 +00:00
Jakob Stoklund Olesen
fa796dd720 Teach antidependency breakers to use RegisterClassInfo. 
No functional change was intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133202 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-16 21:56:21 +00:00
Devang Patel
e29e8e100e Update DBG_VALUEs while breaking anti dependencies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132487 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 21:26:52 +00:00
Chris Lattner
7a2bdde0a0 Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 05:18:47 +00:00
Jakob Stoklund Olesen
597faa8f1f Simplify AggressiveAntiDepBreaker's use of register aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:23:15 +00:00
Jim Grosbach
9b041c92ef Anti-dependency breaking needs to be careful not to use reserved regs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112832 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-02 17:12:55 +00:00
Bill Wendling
9c2a034730 Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister. This time 
make sure to allocate enough space in the std::vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-15 19:58:14 +00:00
Bill Wendling
e4a4147c87 Reserve a goodly amount of room for the vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-15 19:41:20 +00:00
Bill Wendling
38306d53f9 Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-15 18:43:09 +00:00
Chris Lattner
7fa889b946 revert bill's patches in an attempt to fix the buildbot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108419 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-15 06:51:46 +00:00
Bill Wendling
75a5b71208 Fix headers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108413 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-15 06:05:18 +00:00
Bill Wendling
e010409cab Use std::vector instead of a hard-coded array. The length of that array could 
get *very* large, but we only need it to be the size of the number of pregs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108412 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-15 06:04:38 +00:00
Rafael Espindola
7e1b566322 Convert the last use of getPhysicalRegisterRegClass and remove it. 
AggressiveAntiDepBreaker should not be using getPhysicalRegisterRegClass. An
instruction might be using a register that can only be replaced with one from
a subclass of getPhysicalRegisterRegClass.

With this patch we use getMinimalPhysRegClass. This is correct, but
conservative. We should check the uses of the register and select the
largest register class that can be used in all of them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 02:55:34 +00:00
Evan Cheng
46df4eb46e Make post-ra scheduling, anti-dep breaking, and register scavenger (conservatively) aware of predicated instructions. This enables ARM to move if-conversion before post-ra scheduler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 07:35:02 +00:00
Jim Grosbach
086723d244 Not all entries in the range will have an SUnit. Check for that when looking 
for debug information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105324 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-02 15:29:36 +00:00
Jim Grosbach
533934e06e Update debug information when breaking anti-dependencies. rdar://7759363 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105300 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-01 23:48:44 +00:00
Dan Gohman
66db3a0f10 Make BreakAntiDependencies' SUnits argument const, and make the Begin 
and End arguments by-value rather than by-reference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101830 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-19 23:11:58 +00:00
Bob Wilson
347fa3fa26 Tidy whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100904 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-09 21:38:26 +00:00
Chris Lattner
518bb53485 move target-independent opcodes out of TargetInstrInfo 
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 19:54:29 +00:00
Jim Grosbach
2973b57093 80 column and whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92837 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 16:48:02 +00:00
David Greene
5393b25234 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92093 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-24 00:14:25 +00:00
David Goodwin
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
David Goodwin
2601329106 <rdar://problem/6721894>. Allow multiple registers to be renamed together (super and sub) if necessary to break an anti-dependence. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89722 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-24 00:59:08 +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
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
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
David Goodwin
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
David Goodwin
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
David Goodwin
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
David Goodwin
7040d6e2f5 Fix bug in aggressive antidep breaking; liveness was not updated correctly for regions that do not have antidep candidates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86172 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 21:06:09 +00:00
David Goodwin
98f2f1aff8 Replace std::map.at() with std::map[]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86102 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 01:45:50 +00:00
David Goodwin
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
David Goodwin
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
David Goodwin
5b3c308970 Between scheduling regions, correctly maintain anti-dep breaking state so that we don't incorrectly rename registers that span these regions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85537 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-29 23:30:59 +00:00
David Goodwin
67a8a7b3bd Fix a couple of bugs in aggressive anti-dep breaking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85522 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-29 19:17:04 +00:00
David Goodwin
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
David Goodwin
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