Chris Lattner
b38edd3714
Remove obsolete wording, the only exception a readnone function can throw
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is the empty set. :) Thanks to Fritz for pointing this out.
llvm-svn: 70790
2009-05-03 19:06:00 +00:00
Chris Lattner
abf304f36e
be very explicit that readnone/readonly functions can't
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throw exceptions.
llvm-svn: 70788
2009-05-03 18:49:37 +00:00
Evan Cheng
28aa6c41d1
In some rare cases, the register allocator can spill registers but end up not utilizing registers at all. The fundamental problem is linearscan's backtracking can end up freeing more than one allocated registers. However, reloads and restores might be folded into uses / defs and freed registers might not be used at all.
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VirtRegMap keeps track of allocations so it knows what's not used. As a horrible hack, the stack coloring can color spill slots with *free* registers. That is, it replace reload and spills with copies from and to the free register. It unfold instructions that load and store the spill slot and replace them with register using variants.
Not yet enabled. This is part 1. More coming.
llvm-svn: 70787
2009-05-03 18:32:42 +00:00
Anton Korobeynikov
df33e5a803
Handle implicit zext in a better way. Shamelessly stolen from x86 backend.
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Thanks for Dan Gohman for suggestion!
llvm-svn: 70782
2009-05-03 15:50:18 +00:00
Anton Korobeynikov
232363815b
Regenerate
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llvm-svn: 70772
2009-05-03 13:42:23 +00:00
Anton Korobeynikov
15587901c3
Fix typo
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llvm-svn: 70770
2009-05-03 13:19:57 +00:00
Anton Korobeynikov
46a92ec4d6
Update due to mainline API change
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llvm-svn: 70769
2009-05-03 13:19:42 +00:00
Anton Korobeynikov
13ed1c4514
Add TODO list :)
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llvm-svn: 70768
2009-05-03 13:19:24 +00:00
Anton Korobeynikov
8988fea464
Make handling of conditional stuff much more straightforward
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llvm-svn: 70767
2009-05-03 13:19:09 +00:00
Anton Korobeynikov
d8c42b2dee
Temporary disable imm patterns for cmp. Actually, all cmp-related stuff (select_cc, setcc, br_cc). needs to be rethought
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llvm-svn: 70766
2009-05-03 13:18:50 +00:00
Anton Korobeynikov
e6c8cc6c51
Expand divisions into libcalls
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llvm-svn: 70765
2009-05-03 13:18:33 +00:00
Anton Korobeynikov
34d22f34a8
Properly handle sdiv / udiv / srem / urem libcalls
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llvm-svn: 70764
2009-05-03 13:18:16 +00:00
Anton Korobeynikov
54bbd77498
Custom lower SIGN_EXTEND
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llvm-svn: 70763
2009-05-03 13:17:49 +00:00
Anton Korobeynikov
9103796e69
Some eye-candy
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llvm-svn: 70762
2009-05-03 13:17:31 +00:00
Anton Korobeynikov
c0ea294fb9
Print function header / footer
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llvm-svn: 70761
2009-05-03 13:17:11 +00:00
Anton Korobeynikov
f4b4812c83
Fix printing: je => jeq
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llvm-svn: 70760
2009-05-03 13:16:54 +00:00
Anton Korobeynikov
4b5232c990
Add 8bit shifts
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llvm-svn: 70759
2009-05-03 13:16:37 +00:00
Anton Korobeynikov
d0e3939bdf
Handle logical shift right (at least I hope so :) )
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llvm-svn: 70758
2009-05-03 13:16:17 +00:00
Anton Korobeynikov
7dd27f2e41
Handle anyext
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llvm-svn: 70757
2009-05-03 13:15:57 +00:00
Anton Korobeynikov
baf9278166
Expand all sorts of indirect branches
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llvm-svn: 70755
2009-05-03 13:15:40 +00:00
Anton Korobeynikov
806b8efb5e
Add InsertBranch() hook for tail mergeing
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llvm-svn: 70754
2009-05-03 13:15:22 +00:00
Anton Korobeynikov
b97b120cf9
Implement bswap
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llvm-svn: 70753
2009-05-03 13:15:03 +00:00
Anton Korobeynikov
cebc97d79c
Properly handle ExternalSymbol's
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llvm-svn: 70752
2009-05-03 13:14:46 +00:00
Anton Korobeynikov
9b84c6b633
Expand muls (all mulls!) to libcalls for now
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llvm-svn: 70751
2009-05-03 13:14:25 +00:00
Anton Korobeynikov
7f560f113d
Proper name 16 bit libcalls
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llvm-svn: 70750
2009-05-03 13:14:08 +00:00
Anton Korobeynikov
b4da45ecd8
Add libcall expansion for 16 and 128 bit muls
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llvm-svn: 70749
2009-05-03 13:13:51 +00:00
Anton Korobeynikov
80d0bdc789
Provide addc and subc
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llvm-svn: 70748
2009-05-03 13:13:34 +00:00
Anton Korobeynikov
1f80bde7ad
Add left shift
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llvm-svn: 70747
2009-05-03 13:13:17 +00:00
Anton Korobeynikov
d9b4143e47
Add direct branch
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llvm-svn: 70746
2009-05-03 13:12:58 +00:00
Anton Korobeynikov
c5a13f6a3f
It's error-prone to maintain two separate variants of asmprinting stuff, one of which is even used. Drop second (aka 'intel') variant of operands. It can be added later, if needed.
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llvm-svn: 70745
2009-05-03 13:12:37 +00:00
Anton Korobeynikov
f7943f8df6
Lower select with custom inserted and make condjumps generic
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llvm-svn: 70744
2009-05-03 13:12:23 +00:00
Anton Korobeynikov
d55d6586ae
Add first draft for conditions, conditional branches, etc
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llvm-svn: 70743
2009-05-03 13:12:06 +00:00
Anton Korobeynikov
2b8085a3f5
Hanle i8 returns
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llvm-svn: 70742
2009-05-03 13:11:48 +00:00
Anton Korobeynikov
67b1a5c20b
Small tweaking
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llvm-svn: 70741
2009-05-03 13:11:35 +00:00
Anton Korobeynikov
c428224a89
Add prologue/epilogue emission. Fix frame pointer handling.
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llvm-svn: 70740
2009-05-03 13:11:20 +00:00
Anton Korobeynikov
10d199fa80
Add code for save/restore of callee-saved registers
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llvm-svn: 70739
2009-05-03 13:11:04 +00:00
Anton Korobeynikov
6a63537ff0
Two more hooks for RA and FP registers
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llvm-svn: 70738
2009-05-03 13:10:40 +00:00
Anton Korobeynikov
06d645c199
Proper handle loading of effective address of stack slot stuff
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llvm-svn: 70737
2009-05-03 13:10:26 +00:00
Anton Korobeynikov
88cc152a78
Match frame indexes
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llvm-svn: 70736
2009-05-03 13:10:11 +00:00
Anton Korobeynikov
e7639579a3
First draft of stack slot loads / stores lowering
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llvm-svn: 70735
2009-05-03 13:09:57 +00:00
Anton Korobeynikov
1f9d4dc64d
Reverse order of memory arguments
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llvm-svn: 70734
2009-05-03 13:09:40 +00:00
Anton Korobeynikov
f3fadcbbda
Remove bogus pattern
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llvm-svn: 70733
2009-05-03 13:09:24 +00:00
Anton Korobeynikov
47c1450013
Correct asmprinting of memory operands
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llvm-svn: 70732
2009-05-03 13:09:10 +00:00
Anton Korobeynikov
eea3a58bbf
Match wrapper node for address
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llvm-svn: 70731
2009-05-03 13:08:51 +00:00
Anton Korobeynikov
cd06be1d13
Add lowering for global address nodes. Not pretty efficient though.
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llvm-svn: 70730
2009-05-03 13:08:33 +00:00
Anton Korobeynikov
e02a674ee0
Some early full call lowering draft for direct calls
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llvm-svn: 70729
2009-05-03 13:08:13 +00:00
Anton Korobeynikov
b396742d02
Add call frame setup instruction elimination and lowerid for bunch of call-related stuff.
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llvm-svn: 70728
2009-05-03 13:07:54 +00:00
Anton Korobeynikov
4fa710b300
Add CALL lowering.
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llvm-svn: 70727
2009-05-03 13:07:31 +00:00
Anton Korobeynikov
582d2a335b
Add bunch of mem-whatever patterns
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llvm-svn: 70726
2009-05-03 13:07:10 +00:00
Anton Korobeynikov
d14ee9eeae
Add bunch of reg-mem inst patterns
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llvm-svn: 70725
2009-05-03 13:06:46 +00:00
