d74ea2bbd8
Patches to make the LLVM sources more -pedantic clean. Patch provided
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by Anton Korobeynikov! This is a step towards closing PR786.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28447 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-24 17:04:05 +00:00
647c15e58e
Backing out fix for PR770. Need to re-apply it after live range splitting is possible
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28236 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:06:34 +00:00
993141402f
Set weight of zero length intervals to infinite to prevent them from being
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spilled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28220 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:29:24 +00:00
e73701df94
PR 770 - permit coallescing of registers in subset register classes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28197 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 06:37:48 +00:00
e53f4a055f
Move some methods out of MachineInstr into MachineOperand
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28102 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 17:52:23 +00:00
35f2705e3d
Remove previous patch, which wasn't quite right.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28039 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-01 21:16:03 +00:00
200370fb56
Local spiller kills a store if the folded restore is turned into a copy.
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But this is incorrect if the spilled value live range extends beyond the
current BB.
It is currently controlled by a temporary option -spiller-check-liveout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28024 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-30 08:41:47 +00:00
2c2c6c61f1
Add explicit #includes of <iostream>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25515 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-22 23:41:00 +00:00
60d97d4f55
Minor cleanup, no functionality change for current targets
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25173 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-10 05:41:59 +00:00
3b9db830f7
Change a variable from being an iterator to a raw MachineInstr*, to make
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GDB use tolerable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25064 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-03 07:41:37 +00:00
c60e6020c0
Fix some spello's pointed out by Gabor Greif
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24019 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-26 18:41:41 +00:00
aa51a484e1
Make the coallescer a bit smarter, allowing it to join more live ranges.
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For example, we can now join things like [0-30:0)[31-40:1)[52-59:2)
with [40:60:0) if the 52-59 range is defined by a copy from the 40-60 range.
The resultant range ends up being [0-30:0)[31-60:1).
This fires a lot through-out the test suite (e.g. shrinking bc from
19492 -> 18509 machineinstrs) though most gains are smaller (e.g. about
50 copies eliminated from crafty).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23866 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-21 06:49:50 +00:00
3c3fe462f7
Expose the LiveInterval interfaces as public headers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23400 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-21 04:19:09 +00:00
ceb0a52231
remove debugging code *slaps head*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23294 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 19:19:20 +00:00
b11443dc84
When spilling a live range that is used multiple times by one instruction,
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only add a reload live range once for the instruction. This is one step
towards fixing a regalloc pessimization that Nate notice, but is later undone
by the spiller (so no code is changed).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23293 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 19:17:47 +00:00
dc6e2e0a5f
Fix a bug that Tzu-Chien Chiu noticed: live interval analysis does NOT
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preserve livevar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23259 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07 17:34:39 +00:00
5ab6f5fe66
Teach live intervals to not crash on dead livein regs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23206 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 00:20:32 +00:00
ab4b66d4c2
Simplify this code by using higher-level LiveVariables methods
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22989 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 22:51:41 +00:00
cef21c3544
Fix debug info to not print out recently freed memory.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22529 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 23:11:25 +00:00
8e7a70976d
Print symbolic register names in debug dumps
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22528 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 23:03:38 +00:00
38135af219
Print the symbolic register name in a register allocator debug dump.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22002 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 05:34:15 +00:00
712ad0c36d
allow a virtual register to be associated with live-in values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21927 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 07:08:07 +00:00
edf128a7fa
Remove trailing whitespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21420 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 22:36:52 +00:00
8e7d87b228
there is no need to remove this instruction, linscan does it already as it
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removes noop moves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21183 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-09 16:24:20 +00:00
799a919dbc
Adjust live intervals to support a livein set
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21182 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-09 16:17:50 +00:00
Chris Lattner
Evan Cheng
Misha Brukman