Chris Lattner
303b555164
we don't need this proto any longer
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23342 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 22:05:21 +00:00
Chris Lattner
f4f33ba518
don't emit the namespace inside the class!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23341 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 22:05:02 +00:00
Chris Lattner
1048b7a67e
Emit code suitable for emission into the ISel class, allowing us to use/define
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methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23340 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 22:03:37 +00:00
Chris Lattner
af16538511
move the #include for the generated code into the isel class body so we
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can use/define class methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23339 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 22:03:06 +00:00
Chris Lattner
6de8b53230
continue xform function parsing
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23338 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:59:15 +00:00
Chris Lattner
24eeeb8c3e
Start parsing node transformation information
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23337 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:51:00 +00:00
Chris Lattner
8f493130bb
Add a new Record::getValueAsCode method to mirror the other getValueAs*
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methods. Use it to simplify some code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23336 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:44:28 +00:00
Chris Lattner
ee9f0c3c2e
completely eliminate TreePattern::PatternType
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23335 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:20:49 +00:00
Chris Lattner
7b738342f0
Change the arg lowering code to use copyfromreg from vregs associated
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with incoming arguments instead of the pregs themselves. This fixes
the scheduler from causing problems by moving a copyfromreg for an argument
to after a select_cc node (now it can, and bad things won't happen).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23334 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 19:33:40 +00:00
Chris Lattner
8c4469840e
This has been moved to the target-indep code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23333 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 19:32:18 +00:00
Chris Lattner
82da52299c
This code is no longer needed, it is moved to the target-indep code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23332 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 19:31:44 +00:00
Chris Lattner
fa57702388
If a function has liveins, and if the target requested that they be plopped
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into particular vregs, emit copies into the entry MBB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23331 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 19:30:54 +00:00
Chris Lattner
f2cded73c4
Majik numbers are bad
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23330 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 19:03:13 +00:00
Chris Lattner
31262ce53d
Remove some dead vectors
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23329 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 18:47:49 +00:00
Chris Lattner
7835cdde40
Add a simple xform to simplify array accesses with casts in the way.
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This is useful for 178.galgel where resolution of dope vectors (by the
optimizer) causes the scales to become apparent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23328 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 18:36:04 +00:00
Chris Lattner
396b2baf3c
Fix an issue where LSR would miss rewriting a use of an IV expression by a PHI node that is not the original PHI.
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This fixes up a dot-product loop in galgel, speeding it up from 18.47s to
16.13s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23327 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 02:09:55 +00:00
Duraid Madina
c6342355c9
fails since linux-itanium headers are Different
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23326 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 01:03:53 +00:00
Chris Lattner
eed48275a1
Add a helper function, allowing us to simplify some code a bit, changing
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indentation, no functionality change
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23325 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 00:40:14 +00:00
Chris Lattner
408902b3c4
Implement a simple xform to turn code like this:
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if () { store A -> P; } else { store B -> P; }
into a PHI node with one store, in the most trival case. This implements
load.ll:test10.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23324 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 23:23:25 +00:00
Chris Lattner
15cc608a8f
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23323 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 23:22:17 +00:00
Chris Lattner
9c1f0fd8de
Another load-peephole optimization: do gcse when two loads are next to
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each other. This implements InstCombine/load.ll:test9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23322 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 22:21:03 +00:00
Chris Lattner
128a0032a2
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23321 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 22:19:46 +00:00
Chris Lattner
62f254df04
Implement a trivial form of store->load forwarding where the store and the
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load are exactly consequtive. This is picked up by other passes, but this
triggers thousands of times in fortran programs that use static locals
(and is thus a compile-time speedup).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23320 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 22:00:15 +00:00
Chris Lattner
598fbf756f
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23319 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 21:59:22 +00:00
Chris Lattner
12b50410cd
Fix a regression from last night, which caused this pass to create invalid
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code for IV uses outside of loops that are not dominated by the latch block.
We should only convert these uses to use the post-inc value if they ARE
dominated by the latch block.
Also use a new LoopInfo method to simplify some code.
This fixes Transforms/LoopStrengthReduce/2005-09-12-UsesOutOutsideOfLoop.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23318 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 17:11:27 +00:00
Chris Lattner
e4b56572f9
relax pattern match on name
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23317 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 17:09:40 +00:00
Chris Lattner
24e357ce11
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23316 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 17:08:15 +00:00
Chris Lattner
b6a69e70e0
Add a new getLoopLatch() method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23315 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 17:03:55 +00:00
Chris Lattner
331a1833e1
new method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23314 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 17:03:16 +00:00
Chris Lattner
c6bae65b49
_test:
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li r2, 0
LBB_test_1: ; no_exit.2
li r5, 0
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmpwi cr0, r2, 701
blt cr0, LBB_test_1 ; no_exit.2
LBB_test_2: ; loopexit.2.loopexit
addi r2, r2, 1
stw r2, 0(r4)
blr
[zion ~/llvm]$ cat > ~/xx
Uses of IV's outside of the loop should use hte post-incremented version
of the IV, not the preincremented version. This helps many loops (e.g. in sixtrack)
which used to generate code like this (this is the code from the
dont-hoist-simple-loop-constants.ll testcase):
_test:
li r2, 0 **** IV starts at 0
LBB_test_1: ; no_exit.2
or r5, r2, r2 **** Copy for loop exit
li r2, 0
stw r2, 0(r3)
addi r3, r3, 4
addi r2, r5, 1
addi r6, r5, 2 **** IV+2
cmpwi cr0, r6, 701
blt cr0, LBB_test_1 ; no_exit.2
LBB_test_2: ; loopexit.2.loopexit
addi r2, r5, 2 **** IV+2
stw r2, 0(r4)
blr
And now generated code like this:
_test:
li r2, 1 *** IV starts at 1
LBB_test_1: ; no_exit.2
li r5, 0
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmpwi cr0, r2, 701 *** IV.postinc + 0
blt cr0, LBB_test_1
LBB_test_2: ; loopexit.2.loopexit
stw r2, 0(r4) *** IV.postinc + 0
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23313 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 06:04:47 +00:00
Chris Lattner
a0cf183e2c
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23312 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 05:50:15 +00:00
Chris Lattner
2b931e8035
Regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23311 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 05:30:06 +00:00
Chris Lattner
2fc4f120c6
Rearrange two rules, which apparently makes some versions of bison happier.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23310 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 05:29:43 +00:00
Chris Lattner
6b780a702e
Make sure to disable 64-bit extensions for this test
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23309 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-11 03:50:38 +00:00
Jeff Cohen
c4dd1a4bbe
Fix more Visual Studio build problems.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23308 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-10 02:33:17 +00:00
Jeff Cohen
8337b0797b
Fix miscellaneous Visual Studio build problems.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23307 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-10 02:00:02 +00:00
Chris Lattner
7259df3ab8
implement Transforms/LoopStrengthReduce/dont-hoist-simple-loop-constants.ll.
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We used to emit this code for it:
_test:
li r2, 1 ;; Value tying up a register for the whole loop
li r5, 0
LBB_test_1: ; no_exit.2
or r6, r5, r5
li r5, 0
stw r5, 0(r3)
addi r5, r6, 1
addi r3, r3, 4
add r7, r2, r5 ;; should be addi r7, r5, 1
cmpwi cr0, r7, 701
blt cr0, LBB_test_1 ; no_exit.2
LBB_test_2: ; loopexit.2.loopexit
addi r2, r6, 2
stw r2, 0(r4)
blr
now we emit this:
_test:
li r2, 0
LBB_test_1: ; no_exit.2
or r5, r2, r2
li r2, 0
stw r2, 0(r3)
addi r3, r3, 4
addi r2, r5, 1
addi r6, r5, 2 ;; whoa, fold those adds!
cmpwi cr0, r6, 701
blt cr0, LBB_test_1 ; no_exit.2
LBB_test_2: ; loopexit.2.loopexit
addi r2, r5, 2
stw r2, 0(r4)
blr
more improvement coming.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23306 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-10 01:18:45 +00:00
Chris Lattner
be04081240
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23305 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-10 01:14:37 +00:00
Chris Lattner
e6ec9f20c9
PowerPC cannot truncstore i1 natively
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23304 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-10 00:21:06 +00:00
Chris Lattner
13d58e71b7
Allow targets to say they don't support truncstore i1 (which includes a mask
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when storing to an 8-bit memory location), as most don't.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23303 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-10 00:20:18 +00:00
Chris Lattner
a500fc681d
Add a missing #include, patch courtesy of Baptiste Lepilleur.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23302 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 23:53:39 +00:00
Chris Lattner
3ec5d74fc5
Fix a problem duraid encountered on itanium where this folding:
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select (x < y), 1, 0 -> (x < y) incorrectly: the setcc returns i1 but the
select returned i32. Add the zero extend as needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23301 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 23:00:07 +00:00
Chris Lattner
08addbd477
Fix a crash viewing dags that have target nodes in them
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23300 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 22:35:03 +00:00
Chris Lattner
c9fe7508a5
I forgot that we always spill fp values as 64-bits. Implement spill folding
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for FP as well. This triggers a couple dozen times on 177.mesa (for example).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23299 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 21:59:44 +00:00
Chris Lattner
f38df04c3a
Fix a problem that Nate noticed, where spill code was not getting coallesced
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with copies, leading to code like this:
lwz r4, 380(r1)
or r10, r4, r4 ;; Last use of r4
By teaching the PPC backend how to fold spills into copies, we now get this
code:
lwz r10, 380(r1)
wow. :)
This reduces a testcase nate sent me from 1505 instructions to 1484.
Note that this could handle FP values but doesn't currently, for reasons
mentioned in the patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23298 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 21:46:49 +00:00
Chris Lattner
1463019e84
code cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23297 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 20:51:08 +00:00
Chris Lattner
50ea01ed5b
Use continue in the use-processing loop to make it clear what the early exits
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are, simplify logic, and cause things to not be nested as deeply. This also
uses MRI->areAliases instead of an explicit loop.
No functionality change, just code cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23296 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 20:29:51 +00:00
Nate Begeman
39ee1ac7e5
Last round of 2-node folds from SD.cpp. Will move on to 3 node ops such
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as setcc and select next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23295 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 19:49:52 +00:00
Chris Lattner
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
Chris Lattner
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