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ece6737f15
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1528 Commits

Author SHA1 Message Date
Chris Lattner
ece6737f15 remove unneeded #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45439 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 01:11:43 +00:00
Chris Lattner
b4e48cb096 remove a bunch of now-dead methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45438 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 01:04:05 +00:00
Chris Lattner
c672a1fb04 make offset operand optional. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45434 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 00:50:55 +00:00
Chris Lattner
39697a83b5 Shrinkify the machine operand creation method names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45433 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 00:45:46 +00:00
Chris Lattner
c8313f1d79 switch MIBuilder over to use the simplified operand addition methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45431 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 00:35:18 +00:00
Chris Lattner
e86d0d089e 1. Make a static MachineOperand::create* method for every 
operand type.
2. Move these create methods below the accessors.
3. Simplify all the MachineInstr::add* methods to use these.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45430 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 00:29:19 +00:00
Chris Lattner
a4161ee994 simplify some code by factoring operand construction better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45428 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 00:12:25 +00:00
Chris Lattner
234d529e58 remove attribution from a variety of miscellaneous files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45425 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 22:59:10 +00:00
Chris Lattner
7ed47a1335 Don't attribute in file headers anymore. See llvmdev for the 
discussion of this change.  Boy are my fingers tired. ;-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:59:42 +00:00
Owen Anderson
99d562d8fc Get rid of an unneeded #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45337 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-23 20:34:06 +00:00
Owen Anderson
96fa396039 Add GraphTraits specializations for machine dominators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45333 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-23 15:16:46 +00:00
Chris Lattner
1a3048bb8e Add a new FGETSIGN operation, which defaults to expand on all 
targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45320 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-22 20:47:56 +00:00
Anton Korobeynikov
860b25a611 Unbreak build on gcc 3.x 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45315 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-22 14:27:49 +00:00
Evan Cheng
2e07d33f04 Cosmetic change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44961 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 23:15:59 +00:00
Evan Cheng
22f07ffd27 Switch over to MachineLoopInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44838 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 02:09:15 +00:00
Gordon Henriksen
ad93c4f936 CollectorMetadata and Collector are rejiggered to get along with 
per-function collector model. Collector is now the factory for
CollectorMetadata, so the latter may be subclassed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44827 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 00:30:17 +00:00
Bill Wendling
0f940c95d4 Initial commit of the machine code LICM pass. It successfully hoists this: 
_foo:
        li r2, 0
LBB1_1: ; bb
        li r5, 0
        stw r5, 0(r3)
        addi r2, r2, 1
        addi r3, r3, 4
        cmplw cr0, r2, r4
        bne cr0, LBB1_1 ; bb
LBB1_2: ; return
        blr 

to:

_foo:
        li r2, 0
        li r5, 0
LBB1_1: ; bb
        stw r5, 0(r3)
        addi r2, r2, 1
        addi r3, r3, 4
        cmplw cr0, r2, r4
        bne cr0, LBB1_1 ; bb
LBB1_2: ; return
        blr

ZOMG!! :-)

Moar to come...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44687 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-07 21:42:31 +00:00
Owen Anderson
050fe638a5 Fix a stupid error that Chris pointed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44674 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-07 04:04:55 +00:00
Evan Cheng
5ef3a04b54 Fix for PR1831: if all defs of an interval are re-materializable, then it's a preferred spill candiate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44644 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 00:01:56 +00:00
Evan Cheng
018f9b020b - Mark last use of a split interval as kill instead of letting spiller track it. 
This allows an important optimization to be re-enabled.
- If all uses / defs of a split interval can be folded, give the interval a
  low spill weight so it would not be picked in case spilling is needed (avoid
  pushing other intervals in the same BB to be spilled).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44601 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-05 03:22:34 +00:00
Evan Cheng
d64b5c82b9 Add a argument to storeRegToStackSlot and storeRegToAddr to specify whether 
the stored register is killed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44600 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-05 03:14:33 +00:00
Evan Cheng
aee4af68ae Remove redundant foldMemoryOperand variants and other code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44517 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-02 08:30:39 +00:00
Owen Anderson
528b00adc4 Fixes for MachineLoopInfo, mostly from Evan. With these, it should be almost useable! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44480 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-01 03:01:39 +00:00
Evan Cheng
e62f97c094 Allow some reloads to be folded in multi-use cases. Specifically testl r, r -> cmpl [mem], 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44479 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-01 02:07:52 +00:00
Evan Cheng
cddbb83ea8 Do not fold reload into an instruction with multiple uses. It issues one extra load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44467 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-30 21:23:43 +00:00
Devang Patel
962e0750a5 Provide a way to update DescGlobals cache directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44446 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-30 00:51:33 +00:00
Evan Cheng
1953d0cb7d Fix a major performance issue with splitting. If there is a def (not def/use) 
in the middle of a split basic block, create a new live interval starting at
the def. This avoid artifically extending the live interval over a number of
cycles where it is dead. e.g.

bb1:
       = vr1204   (use / kill) <= new interval starts and ends here.
...
...
vr1204 =          (new def)   <= start a new interval here.
       = vr1204   (use)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44436 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-29 10:12:14 +00:00
Evan Cheng
c3fc7d9ec9 Replace the odd kill# hack with something less fragile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44434 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-29 09:49:23 +00:00
Evan Cheng
0cbb1164b3 Fixed various live interval splitting bugs / compile time issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44428 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-29 01:06:25 +00:00
Duncan Sands
0a488b320c Add missing newlines at EOF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44399 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 10:13:38 +00:00
Evan Cheng
cada245d06 Recover compile time regression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44386 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 01:28:46 +00:00
Owen Anderson
e4ad9c70e4 Add MachineLoopInfo. This is not yet tested. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44384 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 22:47:08 +00:00
Owen Anderson
af9ac8f821 Add accessor for getting the underlying templated type. This is necessary for templated LoopInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44347 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 03:33:40 +00:00
Dan Gohman
ab2a754254 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44235 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-19 15:36:19 +00:00
Evan Cheng
81a0382181 Live interval splitting: 
When a live interval is being spilled, rather than creating short, non-spillable
intervals for every def / use, split the interval at BB boundaries. That is, for
every BB where the live interval is defined or used, create a new interval that
covers all the defs and uses in the BB.

This is designed to eliminate one common problem: multiple reloads of the same
value in a single basic block. Note, it does *not* decrease the number of spills
since no copies are inserted so the split intervals are *connected* through
spill and reloads (or rematerialization). The newly created intervals can be
spilled again, in that case, since it does not span multiple basic blocks, it's
spilled in the usual manner. However, it can reuse the same stack slot as the
previously split interval.

This is currently controlled by -split-intervals-at-bb.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44198 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-17 00:40:40 +00:00
Evan Cheng
38b0be01de Shrinkfy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44197 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-17 00:31:16 +00:00
Anton Korobeynikov
917c2a6ff2 Implement necessary bits for flt_rounds gcc builtin. 
Codegen bits and llvm-gcc support will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44182 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-15 23:25:33 +00:00
Anton Korobeynikov
9de1934099 Fix PIC jump table codegen on x86-32/linux. In fact, such thing should be applied 
to all targets uses GOT-relative offsets for PIC (Alpha?)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44108 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 09:18:41 +00:00
Evan Cheng
c498b0281f Clean up sub-register implementation by moving subReg information back to 
MachineOperand auxInfo. Previous clunky implementation uses an external map
to track sub-register uses. That works because register allocator uses
a new virtual register for each spilled use. With interval splitting (coming
soon), we may have multiple uses of the same register some of which are
of using different sub-registers from others. It's too fragile to constantly
update the information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44104 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 07:59:08 +00:00
Hartmut Kaiser
ffb15de60e Fixed a compilation error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44083 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-13 23:04:28 +00:00
Owen Anderson
660c5b9514 Wow. I definitely shouldn't write code when I'm tird. 
Make my previous patch actually do what it was intended to do.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44061 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-13 19:56:28 +00:00
Bill Wendling
0f8d9c04d9 Unify CALLSEQ_{START,END}. They take 4 parameters: the chain, two stack 
adjustment fields, and an optional flag. If there is a "dynamic_stackalloc" in
the code, make sure that it's bracketed by CALLSEQ_START and CALLSEQ_END. If
not, then there is the potential for the stack to be changed while the stack's
being used by another instruction (like a call).

This can only result in tears...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44037 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-13 00:44:25 +00:00
Duncan Sands
e923e21364 Compile fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44013 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-12 13:43:23 +00:00
Evan Cheng
f2fbca68f8 Refactor some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44010 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-12 06:35:08 +00:00
Owen Anderson
e6e1384c57 Fix rewriting of PHI nodes. 
Could someone more familiar with machine-level stuff review this for me?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44005 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-12 02:13:07 +00:00
Owen Anderson
91a91ffb14 Remove unnecessary #include's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44003 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-12 01:19:28 +00:00
Owen Anderson
fe0c882e5a As Chris and Evan pointed out, BreakCriticalMachineEdges doesn't really need 
to be a pass of its own.  Instead, move it out into a helper method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44002 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-12 01:05:09 +00:00
Duncan Sands
c6fa170b4d Fix some load/store logic that would be wrong for 
apints on big-endian machines if the bitwidth is
not a multiple of 8.  Introduce a new helper,
MVT::getStoreSizeInBits, and use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43934 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 08:57:19 +00:00
Evan Cheng
cc41586b9d Much improved pic jumptable codegen: 
Then:
        call    "L1$pb"
"L1$pb":
        popl    %eax
		...
LBB1_1: # entry
        imull   $4, %ecx, %ecx
        leal    LJTI1_0-"L1$pb"(%eax), %edx
        addl    LJTI1_0-"L1$pb"(%ecx,%eax), %edx
        jmpl    *%edx

        .align  2
        .set L1_0_set_3,LBB1_3-LJTI1_0
        .set L1_0_set_2,LBB1_2-LJTI1_0
        .set L1_0_set_5,LBB1_5-LJTI1_0
        .set L1_0_set_4,LBB1_4-LJTI1_0
LJTI1_0:
        .long    L1_0_set_3
        .long    L1_0_set_2

Now:
        call    "L1$pb"
"L1$pb":
        popl    %eax
		...
LBB1_1: # entry
        addl    LJTI1_0-"L1$pb"(%eax,%ecx,4), %eax
        jmpl    *%eax

		.align  2
		.set L1_0_set_3,LBB1_3-"L1$pb"
		.set L1_0_set_2,LBB1_2-"L1$pb"
		.set L1_0_set_5,LBB1_5-"L1$pb"
		.set L1_0_set_4,LBB1_4-"L1$pb"
LJTI1_0:
        .long    L1_0_set_3
        .long    L1_0_set_2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43924 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 01:32:10 +00:00
Owen Anderson
d195ce1fb6 Make BreakCriticalMachineEdges available as a pass that can be depended on. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43910 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 22:20:23 +00:00