Chris Lattner
5b5f7c11d0
Don't be COMPLETELY pessimistic in the face of function calls
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12413 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15 04:08:36 +00:00
Chris Lattner
992860c44e
Deinline some virtual methods, provide better mod/ref answers through the
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use of the boolean queries
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12410 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15 04:07:29 +00:00
Chris Lattner
b79d79297d
Pass through the boolean queries
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12409 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15 04:06:46 +00:00
Chris Lattner
4244bb5bbd
Teach basicaa about some stdc functions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12408 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15 03:36:49 +00:00
Chris Lattner
15d443b566
Mostly cosmetic improvements. Do fix the bug where a global value was considered an input.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12406 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15 01:26:44 +00:00
Chris Lattner
0de632bfae
Assert that input blocks meet the invariants we expect
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Simplify the input/output finder. All elements of a basic block are
instructions. Any used arguments are also inputs. An instruction can only
be used by another instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12405 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15 01:18:23 +00:00
Chris Lattner
5156c39d64
Fix several bugs in the loop extractor. In particular, subloops were never
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extracted, and a function that contained a single top-level loop never had
the loop extracted, regardless of how much non-loop code there was.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12403 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15 00:02:02 +00:00
Chris Lattner
65826bf435
No correctness fixes here, just minor qoi fixes:
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* Don't insert a branch to the switch instruction after the call, just
make it a single block.
* Insert the new alloca instructions in the entry block of the original
function instead of having them execute dynamically
* Don't make the default edge of the switch instruction go back to the switch.
The loop extractor shouldn't create new loops!
* Give meaningful names to the alloca slots and the reload instructions
* Some minor code simplifications
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12402 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 23:43:24 +00:00
Chris Lattner
12f390e9c0
Simplify code a bit, and fix bug CodeExtractor/2004-03-14-NoSwitchSupport.ll
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This also implements a two minor improvements:
* Don't insert live-out stores IN the region, insert them on the code path
that exits the region
* If the region is exited to the same block from multiple paths, share the
switch statement entry, live-out store code, and the basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12401 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 23:05:49 +00:00
Chris Lattner
0e06674287
Simplify the code a bit by making the collection of basic blocks to extract
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a member of the class. While we're at it, turn the collection into a set
instead of a vector to improve efficiency and make queries simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12400 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 22:34:55 +00:00
Alkis Evlogimenos
a1a7148c4d
Another API change to MRegisterInfo::foldMemoryOperand. Instead of a
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MachineBasicBlock::iterator take a MachineInstr*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12392 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 20:14:27 +00:00
Chris Lattner
41bc0b069c
Split into two passes. Now there is the general loop extractor, usable on
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the command line, and the single loop extractor, usable by bugpoint
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12390 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 20:01:36 +00:00
Alkis Evlogimenos
39354c99a1
Change MRegisterInfo::foldMemoryOperand to return the folded
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instruction to make the API more flexible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12386 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 07:19:51 +00:00
Chris Lattner
97836fad2c
Passes don't print stuff!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12385 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 04:17:53 +00:00
Chris Lattner
bf9eaddfb0
Do not create empty basic blocks when the lowerswitch pass expects blocks to
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be non-empty! This fixes LowerSwitch/2004-03-13-SwitchIsDefaultCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12384 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 04:14:31 +00:00
Chris Lattner
bb41156c0c
Minor random cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12382 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 04:01:47 +00:00
Chris Lattner
16d0eb0468
FunctionPass's should not define their own 'run' method.
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Require 'simplified' loops, not just raw natural loops. This fixes
CodeExtractor/2004-03-13-LoopExtractorCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12381 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 04:01:06 +00:00
Chris Lattner
2ef703ec42
If a block is dead, dominators will not be calculated for it. Because of this
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loop information won't see it, and we could have unreachable blocks pointing to
the non-header node of blocks in a natural loop. This isn't tidy, so have the
loopsimplify pass clean it up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12380 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 03:59:22 +00:00
Chris Lattner
59c3569b14
Catch some more cases of broken code. The loop extractor seems to be creating
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situations where there is a branch that goes to a block in another function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12379 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 03:23:54 +00:00
Chris Lattner
ffada93273
Verify functions as they are produced if -debug is specified. Reduce
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curly braceage
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12378 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 03:17:22 +00:00
Chris Lattner
2eff85941f
verifyFunction has been broken for a long time now. Fix it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12377 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 03:16:15 +00:00
Chris Lattner
1e3cb34753
Move prototype to IPO.h instead of Scalar.h
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Make sure that the file interface header (IPO.h) is included first
remove dead #incldue
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12375 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 02:37:16 +00:00
Chris Lattner
efddcfa0df
Indent anon namespace properly, add copyright block
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12373 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 02:34:07 +00:00
Chris Lattner
c3c8703c3b
Move to the IPO library. Utils shouldn't contain passes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12372 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 02:32:27 +00:00
Chris Lattner
a2dc727ac4
DemoteRegToStack got moved from DemoteRegToStack.h to Local.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12368 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 02:13:38 +00:00
Chris Lattner
0cea42a560
Add some debugging output
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Fix InstCombine/2004-03-13-InstCombineInfLoop.ll which caused an infinite
loop compiling (I think) povray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12365 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13 23:54:27 +00:00
Chris Lattner
619d3544b1
This change makes two big adjustments.
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* Be a lot more accurate about what the effects will be when inlining a call
to a function when an argument is an alloca.
* Dramatically reduce the penalty for inlining a call in a large function.
This heuristic made it almost impossible to inline a function into a large
function, no matter how small the callee is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12363 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13 23:15:45 +00:00
Chris Lattner
786c5646e9
This little patch speeds up the loop used to update the dominator set analysis.
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On the testcase from GCC PR12440, which has a LOT of loops (1392 of which require
preheaders to be inserted), this speeds up the loopsimplify pass from 1.931s to
0.1875s. The loop in question goes from 1.65s -> 0.0097s, which isn't bad. All of
these times are a debug build.
This adds a dependency on DominatorTree analysis that was not there before, but
we always had dominatortree available anyway, because LICM requires both loop
simplify and DT, so this doesn't add any extra analysis in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12362 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13 22:01:26 +00:00
Chris Lattner
cc7c4acffa
Fix a tiny bug that caused an incorrect assertion failure poolallocating
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boxed-sim.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12358 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13 01:14:23 +00:00
Chris Lattner
5634b9f5e7
It helps if I save the file. :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12357 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13 00:24:52 +00:00
Chris Lattner
317201d773
Rename the intrinsic enum values for llvm.va_* from Intrinsic::va_* to
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Intrinsic::va*. This avoid conflicting with macros in the stdlib.h file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12356 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13 00:24:00 +00:00
Chris Lattner
bfe492b5c2
Implement sub.ll:test14
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12355 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13 00:11:49 +00:00
Chris Lattner
9c2906744a
Implement InstCombine/sub.ll:test12 & test13
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12353 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 23:53:13 +00:00
Chris Lattner
7a82ba0510
Fix a couple of minor problems. Because PHI nodes can use themselves, this
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could cause infinite loops. Also, getUnderlyingObject can return null
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12351 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 23:12:55 +00:00
Chris Lattner
04b7593546
Implement mod/ref analysis for a trivial case where locals don't escape.
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This comes up when you have a local array on the stack and you never pass
the address of elements around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12349 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 22:39:00 +00:00
Brian Gaeke
215fb76865
Make -print-machineinstrs show us the code both before and after reg. alloc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12344 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 21:19:08 +00:00
Alkis Evlogimenos
a3f66842b2
Add support for a wider range of CMOV instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12336 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 17:59:56 +00:00
Misha Brukman
85f5e11c06
Simplify code to process CallSites (thanks to Chris).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12334 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 16:20:49 +00:00
Misha Brukman
4230f40add
Keep transitively-required passes alive for queries to work after the initial
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user pass is destroyed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12332 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 06:16:28 +00:00
Misha Brukman
bc1dbe95b8
Evaluate ModRef information in addition to regular ol' pointer analysis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12331 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 06:15:08 +00:00
Misha Brukman
a975a9ab80
Implement getModRefInfo() for DSA to calculate whether a function modifies or
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references a pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12330 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 06:14:22 +00:00
Chris Lattner
230c1a7222
Add support for checking the select instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12325 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:54:31 +00:00
Chris Lattner
b4f4880eba
Know the opcode name of the select instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12324 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:54:20 +00:00
Chris Lattner
08a45cc2ff
Add support for select constant expressions. Use reserve a bit more to avoid
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memory wasteage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12323 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:54:04 +00:00
Chris Lattner
647f82be07
Add new function
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12322 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:53:41 +00:00
Chris Lattner
e97148628f
Teach the constant folder how to do select instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12321 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:53:32 +00:00
Chris Lattner
cfdd148972
Print select instructions correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12320 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:53:14 +00:00
Chris Lattner
17fd273512
Add constant folding wrapper support for select instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12319 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:53:03 +00:00
Chris Lattner
6e32372fcd
Add sccp support for select instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12318 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:52:44 +00:00
Chris Lattner
3d69f46d64
Add trivial optimizations for select instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12317 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:52:32 +00:00
Chris Lattner
9f24a077bd
ADd support for select instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12316 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:52:14 +00:00
Chris Lattner
46b787e986
Write select instructions to bytecode
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12315 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:52:01 +00:00
Chris Lattner
e3ac22a204
Read select instrs from bytecode
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12314 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:51:49 +00:00
Chris Lattner
76f0ff394d
Allow parsing select instruction and constant expr
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12313 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 05:51:36 +00:00
Misha Brukman
56c0fa69a3
Make code more readable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12305 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 00:58:41 +00:00
Misha Brukman
ec85af16a0
Fix indentation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12298 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-11 23:53:51 +00:00
Misha Brukman
b8bda13140
Move implementations of functions here, which avoids #including <cstdlib> in the
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header file and all those who #include it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12297 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-11 23:52:43 +00:00
Brian Gaeke
c760d647c6
Get rid of the abort in PhyRegAlloc::finishSavingState().
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Make an explicit call to it from runOnFunction() if we know we're supposed to
write into the global. This is lame (esp. the const_cast), but it solves
the problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12291 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-11 19:46:30 +00:00
Brian Gaeke
c46f8a4f42
Give pass a name
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12290 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-11 19:23:15 +00:00
Misha Brukman
db760d00c3
Fix compilation on Sparc: assert(0) => abort()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12289 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-11 19:08:24 +00:00
Brian Gaeke
cf68bd5fc1
In PhyRegAlloc::saveState(), dump Arguments' saved-state, and try to
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make the output more compact.
Divorce state-saving from the doFinalization method; for some reason it's not
getting called when I want it to, at Reoptimizer time. Put the guts in
PhyRegAlloc::finishSavingState(). Put an abort() in it so that I can be really
really sure that it's getting called.
Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12286 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-11 06:45:52 +00:00
Brian Gaeke
36061dab06
Remove ghostly directory from the build
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12285 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-11 04:42:41 +00:00
Brian Gaeke
d1b3679214
Move all the SaveState options and stuff inton one spot at the top of the file.
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De-constify SaveStateToModule; we have to set both it and SaveRegAllocState
explicitly in the reoptimizer.
Make SaveRegAllocState an 'external location' option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12278 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-10 22:21:03 +00:00
Brian Gaeke
14068d9f97
Only call verifySavedState if SaveRegAllocState is set AND debugging flag is on.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12277 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-10 22:01:59 +00:00
Chris Lattner
c6b0c4b9e2
Fix PR284: [indvars] Induction variable analysis violates LLVM invariants
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12275 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-10 21:42:19 +00:00
Brian Gaeke
d0f3c5e8b1
My fix for PR274 broke the build on Darwin/PPC. As I'm fairly certain this
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bug only affects Linux systems that use GLIBC, I'm going to put ifdefs around
the array.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12269 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-10 17:38:28 +00:00
Chris Lattner
85fb1be62f
implement new method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12264 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 19:37:06 +00:00
Alkis Evlogimenos
6a367f33f3
Spill explicit physical register defs as well.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12260 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 08:35:13 +00:00
Alkis Evlogimenos
519f4e76b7
Check if printing of implicit uses is required for all types of shift
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instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12258 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 06:10:15 +00:00
Brian Gaeke
00f0a29e1c
Address PR274 - '[JIT] Programs cannot resolve the fstat function'
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by trying to get the compiler to generate an undefined reference for it
and related functions which live in libc_nonshared.a on Linux.
Linkers... sigh.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12256 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 05:22:10 +00:00
Brian Gaeke
cf47198a49
Hmm, who left this sitting around in my tree
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12255 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 04:49:13 +00:00
Alkis Evlogimenos
cc2a2a530f
Differentiate between extended precision floats (80-bit) and double precision floats (64-bit)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12254 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 03:37:54 +00:00
Alkis Evlogimenos
0309066f6c
Use newly added API to emit bytes for instructions that gas misassembles
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12253 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 03:35:34 +00:00
Alkis Evlogimenos
39c2005b70
Add emitInstruction() API so that we can get the bytes of a simple instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12252 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 03:34:53 +00:00
Alkis Evlogimenos
f6e8156008
Constify things a bit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12251 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 03:30:12 +00:00
Brian Gaeke
8b16a16918
Change PhyRegAlloc::saveStateForValue()'s arg type to deal with
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AllocInfo.Instruction becoming an int.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12247 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 23:22:03 +00:00
Brian Gaeke
54a76b8808
Save argument list alloc state by recording it as the operands of Instruction
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#-1. Other minor changes to deal with AllocInfo.Instruction becoming an int.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12246 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 23:22:02 +00:00
Brian Gaeke
757ccd5149
Make AllocInfo's Instruction an int, so that we can overload it for arguments.
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(Instruction #-1's operands = argument list).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12245 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 23:22:01 +00:00
Chris Lattner
96ab5caf2d
Switch to using edge profiling information as the basic source of profile info
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from using basic block counts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12242 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 22:04:08 +00:00
Chris Lattner
62e84f376b
Refactor implementations
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12240 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 21:30:35 +00:00
Chris Lattner
6ba8972919
Import the trace class from the reoptimizer
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12236 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 20:57:27 +00:00
Chris Lattner
dbbbfef165
If we have edge counts, we can produce block counts. I've verified that
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using an edge profile to produce block counts gives the exact same numbers
as using a block count directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12232 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 20:03:52 +00:00
Chris Lattner
9f717ef279
Adjust to new interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12231 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 18:51:45 +00:00
Chris Lattner
01945c1739
Add initial support for reading edge counts. This will be improved to enable
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translation of edge counts into block/function counts when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12229 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 18:20:18 +00:00
Chris Lattner
b2f12a2c38
Initial support for edge profiling
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12225 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 17:54:34 +00:00
Chris Lattner
467dd2ec61
Split utility functions out of BlockProfiling.cpp
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12224 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 17:06:13 +00:00
Chris Lattner
c51733c7b5
finegrainify namespacification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12221 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 16:45:53 +00:00
Chris Lattner
63a225050f
Insert functions into the module promptly, not lazily. This fixes a bug
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I introduced last night. Note to self: test the *correct* tree...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12220 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 16:14:19 +00:00
Chris Lattner
802b5ab844
Implement test/Regression/Assembler/2004-03-07-FunctionAddressAlignment.llx
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12218 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 06:17:35 +00:00
Chris Lattner
2c56b55cf0
Remove Module::mutateConstantPointerRef, which is now thankfully dead!
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This is one small step towards the complete obliteration of
ConstantPointerRef's entirely!! Woot!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12216 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 06:16:10 +00:00
Chris Lattner
2296ec0ce9
Eliminate nightmarish API
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12214 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 06:11:10 +00:00
Chris Lattner
bc2075977c
Eliminate a REALLY HORRIBLE API: mutateReferences, which is gross gross gross.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12212 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 06:09:57 +00:00
Chris Lattner
d84d3501c6
Fix a bug handling globals that are constants, but are still external
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12208 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 03:52:24 +00:00
Chris Lattner
9b3c702614
Avoid allocating special registers a bit more robustly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12207 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 03:48:07 +00:00
Chris Lattner
7dee5daf85
Implement folding explicit load instructions into binary operations. For a
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testcase like this:
int %test(int* %P, int %A) {
%Pv = load int* %P
%B = add int %A, %Pv
ret int %B
}
We now generate:
test:
mov %ECX, DWORD PTR [%ESP + 4]
mov %EAX, DWORD PTR [%ESP + 8]
add %EAX, DWORD PTR [%ECX]
ret
Instead of:
test:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
mov %EAX, DWORD PTR [%EAX]
add %EAX, %ECX
ret
... saving one instruction, and often a register. Note that there are a lot
of other instructions that could use this, but they aren't handled. I'm not
really interested in adding them, but mul/div and all of the FP instructions
could be supported as well if someone wanted to add them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12204 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 01:58:35 +00:00
Chris Lattner
721d2d4a6e
Rearrange and refactor some code. No functionality changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12203 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 01:18:36 +00:00
Chris Lattner
9440db8866
Implement ArgumentPromotion/aggregate-promote.ll
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This allows pointers to aggregate objects, whose elements are only read, to
be promoted and passed in by element instead of by reference. This can
enable a LOT of subsequent optimizations in the caller function.
It's worth pointing out that this stuff happens a LOT of C++ programs, because
objects in templates are generally passed around by reference. When these
templates are instantiated on small aggregate or scalar types, however, it is
more efficient to pass them in by value than by reference.
This transformation triggers most on C++ codes (e.g. 334 times on eon), but
does happen on C codes as well. For example, on mesa it triggers 72 times,
and on gcc it triggers 35 times. this is amazingly good considering that
we are using 'basicaa' so far.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12202 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-08 01:04:36 +00:00
Chris Lattner
86a734bd40
Implement: ArgumentPromotion/chained.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12200 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-07 22:52:53 +00:00
Chris Lattner
7db5a6df78
Fix another minor bug, exposed by perlbmk
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12198 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-07 22:43:27 +00:00
Chris Lattner
c76d80342e
Since 'load null' is undefined, we can make it do whatever we want. Returning
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a zero value is the most likely way to cause further simplification, so we do it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12197 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-07 22:16:24 +00:00
Chris Lattner
7e6f5090af
Fix a minor bug and turn debug output into, well, debug output.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12195 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-07 21:54:50 +00:00
Chris Lattner
ed570a7dca
New LLVM pass: argument promotion. This version only handles simple scalar
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variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12193 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-07 21:29:54 +00:00
Alkis Evlogimenos
13d362f310
Add memory operand version of conditional move.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12190 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-07 03:19:11 +00:00
Alkis Evlogimenos
5ae00066c6
As I wrote in the docs, simple is the default spiller :-)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12189 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
499b2bad27
Add simple spiller.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12188 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 22:38:29 +00:00
Brian Gaeke
08f64c3321
Support return values of basic integer types.
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Emit RETL instruction to return instead of funny JMPL.
Fix indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12186 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 05:32:28 +00:00
Brian Gaeke
a8056fabeb
Sort stanzas into Sparc V8 book page number order.
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Add RET, RETL. Rename SAVE, RESTORE & JMPL for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12185 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 05:32:13 +00:00
Brian Gaeke
bda4a3c61a
Hack it so we do not try to allocate values to G0.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12184 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 05:31:32 +00:00
Brian Gaeke
d69b3c58d3
Make prolog align stack properly. Make epilog not touch any registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12183 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 05:31:21 +00:00
Brian Gaeke
a8b00cafc4
Emit register names in lowercase, as required by the assembler.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12182 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 05:30:21 +00:00
Brian Gaeke
a98e051417
Teach getRegClassForType where to find FP registers
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12180 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 03:54:13 +00:00
Chris Lattner
deb8712b49
Fix a minor bug
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12169 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-05 22:04:07 +00:00
Misha Brukman
a5f2905c71
Unbreak the build on Sparc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12161 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-05 20:04:40 +00:00
Brian Gaeke
62aa28aef3
Asm output is looking a lot better; not correct for all operands yet though.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12143 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-05 08:39:09 +00:00
Chris Lattner
4ab483c6ad
Fix a bug in a previous checkin that broke 175.vpr
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12128 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 21:36:57 +00:00
Chris Lattner
3aeb40cadb
Add support for strto* and v*printf
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12127 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 21:03:54 +00:00
Chris Lattner
6b3e3ccf73
Add non-crappy support for varargs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12126 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 20:33:47 +00:00
Chris Lattner
e6e93ccd0c
Implement a FIXME, improving the efficiency of DSA on povray.
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This reduces CBU time from 145s -> 122s (debug build), reduces # allocated nodes
from 129420 to 116477.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12125 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 19:47:04 +00:00
Brian Gaeke
7a3ae1fbad
Support -print-machineinstrs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12124 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 19:22:16 +00:00
Chris Lattner
da5c5a5b95
Speed up the cbu pass from taking somewhere near the age of the universe to about 90s on povray
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12123 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 19:16:35 +00:00
Brian Gaeke
323819e4e1
make -print-machineinstrs work for both SparcV9 and X86
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12122 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 19:16:23 +00:00
Alkis Evlogimenos
ce1e500e2f
Add assertion for scale verification.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12120 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 18:05:02 +00:00
Alkis Evlogimenos
5f65adda50
Hide variable from other functions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12118 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 17:50:44 +00:00
Chris Lattner
f590ced5c5
Fix BU datastructures with povray!
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The problem was that we were merging a field of a node with a value that was
deleted. Thanks to bugpoint for reducing povray to a nice small 3 function
example. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12116 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 17:06:53 +00:00
Chris Lattner
16437ff705
Minor changes, remove some debugging code that got checked in somehow.
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Make sure to scope the NodeMap passed into cloneInto so that it doesn't point
to nodes that are deleted. Add some FIXME's for future performance enhancements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12115 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 17:05:28 +00:00
Brian Gaeke
4acfd039f9
Asm printer support, based on x86 - only prints mnemonics for now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12113 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 06:00:41 +00:00
Brian Gaeke
da69e7d9b3
Double-FP pseudo-registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12112 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 05:15:03 +00:00
Brian Gaeke
775158d62a
Subtract instructions; minor cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12111 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 04:37:45 +00:00
Brian Gaeke
e7173b7e8e
Floating point regs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12110 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 04:37:22 +00:00
Chris Lattner
2f3469013e
Only clone nodes that are needed in the caller, don't clone ALL aux calls. This improves
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povray from having ~600K nodes and 300K call nodes to 65K nodes and 25K call nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12109 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 03:57:53 +00:00
Brian Gaeke
e806173ab6
Simple copyConstantToReg support, SETHIi and ORri
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12107 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 00:56:25 +00:00
Brian Gaeke
bc1d27aa6e
Support add - note, still missing important copyConstantToRegister stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12106 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 23:03:14 +00:00
Chris Lattner
76a9eb3e40
Fix a minor bug handling incomplete programs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12105 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 23:00:19 +00:00
Chris Lattner
c4ebdcea7a
Fix a DSA bug that caused DSA to generate incredibly huge graphs and take forever to
...
do it on povray. The problem is that we were not copying globals from callees to
callers unless the existed in both graphs. We should have copied them in the case
where the global pointed to a node that was copied as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12104 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 22:01:09 +00:00
Chris Lattner
2c7725abb4
Deinline methods, add fast exit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12102 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 20:55:27 +00:00
Brian Gaeke
c54839573c
Make MachineOperand's value named 'contents'. Make really, really sure
...
it is always completely initialized and copied.
Also, fix up many comments and asserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12100 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 19:07:27 +00:00
Chris Lattner
b1aaeee48a
Fix a node mapping problem that was causing the pool allocator to locally allocate
...
nodes that were globally live, thus breaking programs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12094 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 05:34:31 +00:00
Chris Lattner
b06f103d0c
SPECIFY a target data to initialize the CBE target with. Until now we have
...
been using the default target data layout object to lower malloc instructions,
causing us to allocate more memory than we needed! This could improve the
performance of the CBE generated code substantially!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12088 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 02:14:15 +00:00
Chris Lattner
2bed9ecc4b
Add a new constructor
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12087 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 02:12:47 +00:00
Chris Lattner
0a94348fb9
Don't emit things like malloc(16*1). Allocation instructions are fixed arity now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12086 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 01:40:53 +00:00
Chris Lattner
7252939af0
FINALLY be able to get symbolic type names in the globals graph!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12082 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-02 21:39:43 +00:00
Chris Lattner
a19ba52596
Really, only if reopen
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12080 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-02 20:46:18 +00:00
Misha Brukman
ab5c6003d2
Doxygenify comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12071 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-02 00:22:19 +00:00
Misha Brukman
0256e4bbf9
Implement ExtractCodeRegion()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12070 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-02 00:20:57 +00:00
Misha Brukman
38b8fd1078
Make a note that this is usually used via bugpoint.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12068 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-02 00:19:09 +00:00
Misha Brukman
538607fe45
Doxygenify some comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12064 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 23:53:11 +00:00
Alkis Evlogimenos
dd420e060a
Add a spiller option to llc. A simple spiller will come soon. When we get CFG in the machine code represenation a global spiller will also be possible. Also document the linear scan register allocator but mark it as experimental for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12062 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 23:18:15 +00:00
Alkis Evlogimenos
5f37502bfb
Add the long awaited memory operand folding support for linear scan
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12058 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 20:05:10 +00:00
Misha Brukman
9d0802e7dd
* If a badref has a name, print it out for ease of debugging
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* Doxygenify (some) comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12057 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 19:48:13 +00:00
Chris Lattner
82e9d7224e
Correctly add an array marker on a node when appropriate!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12055 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 19:02:54 +00:00
Misha Brukman
b97fce5252
* Add implementation of ExtractBasicBlock()
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* Add comments to ExtractLoop()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12053 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 18:28:34 +00:00
Chris Lattner
ec726a1a6e
Add this back, as its absence introduces assertions, and it seems to work now
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that Instructions are annotable again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12045 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 15:28:27 +00:00
Tanya Lattner
f048bfd97d
fix bug in previous checkin
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12044 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 15:05:17 +00:00
Brian Gaeke
05b15fb075
TargetCacheInfo has been removed; its only uses were to propagate a constant
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(16) into certain areas of the SPARC V9 back-end. I'm fairly sure the US IIIi's
dcache has 32-byte lines, so I'm not sure where the 16 came from. However, in
the interest of not breaking things any more than they already are, I'm going
to leave the constant alone.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12043 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 06:43:29 +00:00
Tanya Lattner
9b3cbdbedb
Adding new Modulo Scheduling graph files.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12031 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:50:57 +00:00
Tanya Lattner
d14b83733e
Removing old graph files with new graph files that I wrote. Updated ModuloScheduling pass, but still in progress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12030 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:50:01 +00:00
Chris Lattner
2d6a6aa137
Expand on my note-to-self
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12029 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:44:44 +00:00
Chris Lattner
21585221b6
Handle passing constant integers to functions much more efficiently. Instead
...
of generating this code:
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
call Y
we now generate:
mov DWORD PTR [%ESP], 4
mov DWORD PTR [%ESP + 4], 123
call Y
Which hurts the eyes less. :)
Considering that register pressure around call sites is already high (with all
of the callee clobber registers n stuff), this may help a lot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12028 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:42:43 +00:00
Chris Lattner
ce6096f49b
Fix a minor code-quality issue. When passing 8 and 16-bit integer constants
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to function calls, we would emit dead code, like this:
int Y(int, short, double);
int X() {
Y(4, 123, 4);
}
--- Old
X:
sub %ESP, 20
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
*** mov %AX, 123
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
fld QWORD PTR [.CPIX_0]
fstp QWORD PTR [%ESP + 8]
call Y
mov %EAX, 0
# IMPLICIT_USE %EAX %ESP
add %ESP, 20
ret
Now we emit:
X:
sub %ESP, 20
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
fld QWORD PTR [.CPIX_0]
fstp QWORD PTR [%ESP + 8]
call Y
mov %EAX, 0
# IMPLICIT_USE %EAX %ESP
add %ESP, 20
ret
Next up, eliminate the mov AX and movsx entirely!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12026 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:34:08 +00:00
Chris Lattner
99cca7d3aa
Disable tail duplication in a case that breaks on Olden/tsp
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12021 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 01:12:13 +00:00
Misha Brukman
99cc88bb64
* Remove function to find "main" in a Module, there's a method for that
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* Removing extraneous empty space and empty comment lines
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12014 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 23:09:10 +00:00
Chris Lattner
cbee990a29
Fix -debug-pass=Executions, which relied on Function, Module, and BasicBlock
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being annotable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12013 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 22:37:04 +00:00
Chris Lattner
06887c9a2a
Fix bug: test/Regression/Transforms/LowerInvoke/2004-02-29-PHICrash.llx
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... which tickled the lowerinvoke pass because it used the BCE routines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12012 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 22:24:41 +00:00
Chris Lattner
92bc3bc11c
Add an assert
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12010 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 22:01:51 +00:00
Chris Lattner
c81295ab24
Add back #include I messed up
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12009 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 21:40:53 +00:00
Chris Lattner
e8d43fdced
Urg, forgot to check this in.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12007 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 21:03:08 +00:00
Chris Lattner
08d4963d49
Move the private MachineInstrAnnot.h into a private directory.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12003 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:12:51 +00:00
Chris Lattner
78827e9f8b
Remove use of an ugly header
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12002 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:04:31 +00:00
Chris Lattner
585911ee21
Move methods out of .h file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12001 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:02:39 +00:00
Chris Lattner
e85f2348c9
Do not use explicit casts that hide the dependence on Instruction being
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annotable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12000 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:02:26 +00:00
Alkis Evlogimenos
96c9b8b496
Add instruction name description.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11998 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 18:44:03 +00:00
Alkis Evlogimenos
7f6124cfc2
Use correct template for SHLD and SHRD instructions so that the memory
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operand size is correctly specified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11997 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 09:19:40 +00:00
Alkis Evlogimenos
9c22aeb0b2
Improve allocation order:
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1) For 8-bit registers try to use first the ones that are parts of the
same register (AL then AH). This way we only alias 2 16/32-bit
registers after allocating 4 8-bit variables.
2) Move EBX as the last register to allocate. This will cause less
spills to happen since we will have 8-bit registers available up to
register excaustion (assuming we use the allocation order). It
would be nice if we could push all of the 8-bit aliased registers
towards the end but we much prefer to keep callee saved register to
the end to avoid saving them on entry and exit of the function.
For example this gives a slight reduction of spills with linear scan
on 164.gzip.
Before:
11221 asm-printer - Number of machine instrs printed
975 spiller - Number of loads added
675 spiller - Number of stores added
398 spiller - Number of register spills
After:
11182 asm-printer - Number of machine instrs printed
952 spiller - Number of loads added
652 spiller - Number of stores added
386 spiller - Number of register spills
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11996 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 09:17:01 +00:00
Alkis Evlogimenos
8295f202d9
A big X86 instruction rename. The instructions are renamed to make
...
their names more decriptive. A name consists of the base name, a
default operand size followed by a character per operand with an
optional special size. For example:
ADD8rr -> add, 8-bit register, 8-bit register
IMUL16rmi -> imul, 16-bit register, 16-bit memory, 16-bit immediate
IMUL16rmi8 -> imul, 16-bit register, 16-bit memory, 8-bit immediate
MOVSX32rm16 -> movsx, 32-bit register, 16-bit memory
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11995 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 08:50:03 +00:00
Brian Gaeke
6ac5300fbc
Remove dead member variables of SparcV9SchedInfo and TargetSchedInfo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11994 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 08:40:03 +00:00
Chris Lattner
ee352852e7
Eliminate the X86-specific BMI functions, using BuildMI instead.
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Replace uses of addZImm with addImm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11992 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 07:22:16 +00:00
Chris Lattner
168aa90bf6
Fix a miscompilation of 197.parser that occurs when you have single basic
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block loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11990 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 07:10:16 +00:00
Chris Lattner
4279f3c984
Fix PR255: [tailduplication] Single basic block loops are very rare
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Note that this is a band-aid put over a band-aid. This just undisables
tail duplication in on very specific case that it seems to work in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11989 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 06:41:20 +00:00
Chris Lattner
dce363d5ec
Adjust to change in TII ctor arguments
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11987 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 06:31:44 +00:00
Chris Lattner
bceb68807f
Eliminate the distinction between "real" and "unreal" instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11986 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 06:31:16 +00:00
Chris Lattner
1ddf475b6a
These two virtual methods are never called.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11984 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:59:33 +00:00
Chris Lattner
0755912c38
Remove a TON of flags that noone cares about
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11983 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:58:30 +00:00
Chris Lattner
9a945277c0
Noone calls these virtual methods
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11982 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:58:16 +00:00
Chris Lattner
0723969e87
This is the only file in the system that uses this enum. eliminate it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11981 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:57:59 +00:00
Chris Lattner
e1274de2c9
Implement initial prolog/epilog code insertion methods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11979 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:18:30 +00:00
Chris Lattner
561c0107b2
int64_t -> int
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11977 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:07:02 +00:00
Alkis Evlogimenos
8777d241cf
Use correct template for ADC instruction with memory operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11974 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 02:18:17 +00:00
Chris Lattner
1c809c594b
Add an instruction selector capable of selecting 'ret void'
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11973 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 00:27:00 +00:00
Alkis Evlogimenos
da474adb21
SHLD and SHRD take 32-bit operands but an 8-bit immediate. Rename them
...
to denote this fact.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11972 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 23:46:44 +00:00
Alkis Evlogimenos
8e475b8cfd
Floating point loads/stores act on memory operands. Rename them to
...
denote this fact.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11971 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 23:42:35 +00:00
Alkis Evlogimenos
91c4b52e7f
Rename instruction templates to be easier to the human eye to
...
parse. The name is now I (operand size)*. For example:
Im32 -> instruction with 32-bit memory operands.
Im16i8 -> instruction with 16-bit memory operands and 8 bit immediate
operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11970 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 23:09:03 +00:00
Alkis Evlogimenos
f8da4d8839
Uncomment instructions that take both an immediate and a memory
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operand but their sizes differ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11969 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 22:06:59 +00:00
Alkis Evlogimenos
5ab29b504d
Each instruction now has both an ImmType and a MemType. This describes
...
the size of the immediate and the memory operand on instructions that
use them. This resolves problems with instructions that take both a
memory and an immediate operand but their sizes differ (i.e. ADDmi32b).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11967 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 22:02:05 +00:00
Brian Gaeke
f822ee999f
Fix typo in comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11966 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 21:55:18 +00:00
Chris Lattner
542f149f00
Implement switch->br and br->switch folding by ripping out the switch->switch
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and br->br code and generalizing it. This allows us to compile code like this:
int test(Instruction *I) {
if (isa<CastInst>(I))
return foo(7);
else if (isa<BranchInst>(I))
return foo(123);
else if (isa<UnwindInst>(I))
return foo(1241);
else if (isa<SetCondInst>(I))
return foo(1);
else if (isa<VAArgInst>(I))
return foo(42);
return foo(-1);
}
into:
int %_Z4testPN4llvm11InstructionE("struct.llvm::Instruction"* %I) {
entry:
%tmp.1.i.i.i.i.i.i.i = getelementptr "struct.llvm::Instruction"* %I, long 0, ubyte 4 ; <uint*> [#uses=1]
%tmp.2.i.i.i.i.i.i.i = load uint* %tmp.1.i.i.i.i.i.i.i ; <uint> [#uses=2]
%tmp.2.i.i.i.i.i.i = seteq uint %tmp.2.i.i.i.i.i.i.i, 27 ; <bool> [#uses=0]
switch uint %tmp.2.i.i.i.i.i.i.i, label %endif.0 [
uint 27, label %then.0
uint 2, label %then.1
uint 5, label %then.2
uint 14, label %then.3
uint 15, label %then.3
uint 16, label %then.3
uint 17, label %then.3
uint 18, label %then.3
uint 19, label %then.3
uint 32, label %then.4
]
...
As well as handling the cases in 176.gcc and many other programs more effectively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11964 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 21:28:10 +00:00
Chris Lattner
9ff6ba1ea1
Change this so that LLC actually tries to run the code generator, though it will
...
immediately abort due to lack of an instruction selector. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11963 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 20:21:45 +00:00
Chris Lattner
8a62384253
SparcV8 now builds.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11960 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 19:54:00 +00:00
Chris Lattner
9a89f37dc7
fine grainify namespacification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11959 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 19:53:18 +00:00
Chris Lattner
8d8a6bc7a3
Finegrainify namespacification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11958 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 19:52:49 +00:00
Chris Lattner
a85d46eea8
Tab completion is our friend.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11957 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 19:45:39 +00:00
Chris Lattner
83ba99ac46
Clean up rules
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11956 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 19:43:40 +00:00
Chris Lattner
275f6459ab
Bring this directory into "it actually compiles" land
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11955 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 19:37:18 +00:00
Chris Lattner
f13bd49d6a
Fix multiple inclusion problem
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11954 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 19:31:32 +00:00
Chris Lattner
b99df4f8c2
if there is already a prototype for malloc/free, use it, even if it's incorrect.
...
Do not just inject a new prototype.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11951 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 18:51:45 +00:00
Alkis Evlogimenos
745502a04b
Do not generate instructions with mismatched memory/immediate sized
...
operands. The X86 backend doesn't handle them properly right now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11944 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 06:01:43 +00:00
Chris Lattner
7bcc0e7fff
Rename AddUsesToWorkList -> AddUsersToWorkList, as that is what it does.
...
Create a new AddUsesToWorkList method
optimize memmove/set/cpy of zero bytes to a noop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11941 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 05:22:00 +00:00
Chris Lattner
6160e85201
Turn 'free null' into nothing
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11940 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 04:57:37 +00:00
Misha Brukman
9e4a642c03
Right, it's really Extractor, not Extraction.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11939 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:37:58 +00:00
Misha Brukman
9401deb320
A pass that uses the generic CodeExtractor to rip out *every* loop in every
...
function, as long as the loop isn't the only one in that function. This should
help debugging passes easier with BugPoint.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11936 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:33:01 +00:00
Misha Brukman
e6336031b8
A generic code extractor: given a list of BasicBlocks, it will rip them out into
...
a new function, taking care of inputs and outputs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11935 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:26:20 +00:00
Alkis Evlogimenos
84cda0f470
Further comment updates.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11933 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:20:31 +00:00
Alkis Evlogimenos
a643a1a528
Update comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11932 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:12:31 +00:00
Alkis Evlogimenos
2eae379388
My previous commit broke the jit. The shift instructions always take
...
an 8-bit immediate. So mark the shifts that take immediates as taking
an 8-bit argument. The rest with the implicit use of CL are marked
appropriately.
A bug still exists:
def SHLDmri32 : I2A8 <"shld", 0xA4, MRMDestMem>, TB; // [mem32] <<= [mem32],R32 imm8
The immediate in the above instruction is 8-bit but the memory
reference is 32-bit. The printer prints this as an 8-bit reference
which confuses the assembler. Same with SHRDmri32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11931 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 02:56:26 +00:00
Brian Gaeke
9f78bf2ff7
Turn off the SparcV9MachineCodeDestructionPass for now, because it's buggy
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11930 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 21:15:40 +00:00
Brian Gaeke
3d1fdee339
Correct DestroyMachineFunction's getPassName
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11929 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 21:01:14 +00:00
Chris Lattner
0321b68f6b
Only clone global nodes between graphs if both graphs have the global.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11928 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 20:05:15 +00:00
Chris Lattner
6b586df328
ADD MORE FUNCTIONS!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11927 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 20:04:48 +00:00
Alkis Evlogimenos
fa5229691f
Fix argument size for SHL, SHR, SAR, SHLD and SHRD families of
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instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11923 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 19:46:30 +00:00
Alkis Evlogimenos
f9186e38d5
Fix encoding of ADD and SUB family of instructions. Also rearrange
...
them so that they are consistent with AND, XOR, etc...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11922 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 18:57:00 +00:00
Alkis Evlogimenos
169584ed45
Rename MRMS[0-7]{r,m} to MRM[0-7]{r,m}.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11921 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 18:55:12 +00:00
Chris Lattner
7d90a2738e
setcond instructions don't have aliasing implications.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11919 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 18:09:25 +00:00
Chris Lattner
08092533b1
Fix Regression/Assembler/2004-02-27-SelfUseAssertError.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11913 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 17:28:25 +00:00
Alkis Evlogimenos
08388a4787
Add memory operand folding support for the SETcc family of
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instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11907 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 16:13:37 +00:00
Alkis Evlogimenos
e56508eb7e
Add memory operand folding support for SHLD and SHRD instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11905 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 15:03:18 +00:00
Alkis Evlogimenos
58ec60589b
Add memory operand folding support for SHL, SHR and SAR, SHLD instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11903 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 09:28:43 +00:00
Alkis Evlogimenos
e35ba65b02
Rename SHL, SHR, SAR, SHLD and SHLR instructions to make them
...
consistent with the rest and also pepare for the addition of their
memory operand variants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11902 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 06:57:05 +00:00
Chris Lattner
a0ebcebc06
Implement test/Regression/Transforms/InstCombine/canonicalize_branch.ll
...
This is a really minor thing, but might help out the 'switch statement induction'
code in simplifycfg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11900 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 06:27:46 +00:00
Alkis Evlogimenos
fc54e83cea
Rename member function to be consistent with the rest.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11898 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 06:11:15 +00:00
Alkis Evlogimenos
57af2cf6f3
Make spiller push stores right after the definition of a register so
...
that they are as far away from the loads as possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11895 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 04:51:35 +00:00
Alkis Evlogimenos
ddcfd9e6fa
Fix crash caused by passing register 0 to
...
MRegisterInfo::isPhysicalRegister().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11894 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 01:52:34 +00:00
Alkis Evlogimenos
8fa16e47f8
Clear maps right after basic block is processed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11892 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 23:22:23 +00:00
John Criswell
3799eec3cf
Fixes for PR258 and PR259.
...
Functions with linkonce linkage are declared with weak linkage.
Global floating point constants used to represent unprintable values
(such as NaN and infinity) are declared static so that they don't interfere
with other CBE generated translation units.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11884 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 22:20:58 +00:00
Chris Lattner
cb582406dd
Be a good little compiler and handle direct calls efficiently, even if there
...
are beastly ConstantPointerRefs in the way...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11883 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 22:07:22 +00:00
Alkis Evlogimenos
71e353ed35
Uncomment assertions that register# != 0 on calls to
...
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11882 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 22:00:20 +00:00
Chris Lattner
4f77caaa3d
Since LLVM uses structure type equivalence, it isn't useful to keep around
...
multiple type names for the same structural type. Make DTE eliminate all
but one of the type names
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11879 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 20:02:23 +00:00
Chris Lattner
0e7ac16926
Use a map instead of annotations
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11875 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 08:02:17 +00:00
Chris Lattner
b1dfc70ef1
remove obsolete comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11872 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 07:59:22 +00:00
Chris Lattner
1cd4c7294c
Make sure that at least one virtual method is defined in a .cpp file to avoid
...
having the compiler emit RTTI and vtables to EVERY translation unit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11871 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 07:24:18 +00:00
Chris Lattner
f2dbf50efa
turn things like:
...
if (X == 0 || X == 2)
...where the comparisons and branches are in different blocks... into a switch
instruction. This comes up a lot in various programs, and works well with
the switch/switch merging code I checked earlier. For example, this testcase:
int switchtest(int C) {
return C == 0 ? f(123) :
C == 1 ? f(3123) :
C == 4 ? f(312) :
C == 5 ? f(1234): f(444);
}
is converted into this:
switch int %C, label %cond_false.3 [
int 0, label %cond_true.0
int 1, label %cond_true.1
int 4, label %cond_true.2
int 5, label %cond_true.3
]
instead of a whole bunch of conditional branches.
Admittedly the code is ugly, and incomplete. To be complete, we need to add
br -> switch merging and switch -> br merging. For example, this testcase:
struct foo { int Q, R, Z; };
#define A (X->Q+X->R * 123)
int test(struct foo *X) {
return A == 123 ? X1() :
A == 12321 ? X2():
(A == 111 || A == 222) ? X3() :
A == 875 ? X4() : X5();
}
Gets compiled to this:
switch int %tmp.7, label %cond_false.2 [
int 123, label %cond_true.0
int 12321, label %cond_true.1
int 111, label %cond_true.2
int 222, label %cond_true.2
]
...
cond_false.2: ; preds = %entry
%tmp.52 = seteq int %tmp.7, 875 ; <bool> [#uses=1]
br bool %tmp.52, label %cond_true.3, label %cond_false.3
where the branch could be folded into the switch.
This kind of thing occurs *ALL OF THE TIME*, especially in programs like
176.gcc, which is a horrible mess of code. It contains stuff like *shudder*:
#define SWITCH_TAKES_ARG(CHAR) \
( (CHAR) == 'D' \
|| (CHAR) == 'U' \
|| (CHAR) == 'o' \
|| (CHAR) == 'e' \
|| (CHAR) == 'u' \
|| (CHAR) == 'I' \
|| (CHAR) == 'm' \
|| (CHAR) == 'L' \
|| (CHAR) == 'A' \
|| (CHAR) == 'h' \
|| (CHAR) == 'z')
and
#define CONST_OK_FOR_LETTER_P(VALUE, C) \
((C) == 'I' ? SMALL_INTVAL (VALUE) \
: (C) == 'J' ? SMALL_INTVAL (-(VALUE)) \
: (C) == 'K' ? (unsigned)(VALUE) < 32 \
: (C) == 'L' ? ((VALUE) & 0xffff) == 0 \
: (C) == 'M' ? integer_ok_for_set (VALUE) \
: (C) == 'N' ? (VALUE) < 0 \
: (C) == 'O' ? (VALUE) == 0 \
: (C) == 'P' ? (VALUE) >= 0 \
: 0)
and
#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \
{ \
if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \
(X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \
copy_to_mode_reg (SImode, XEXP (X, 1))); \
if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \
(X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \
copy_to_mode_reg (SImode, XEXP (X, 0))); \
if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \
(X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \
force_operand (XEXP (X, 0), 0)); \
if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \
(X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \
force_operand (XEXP (X, 1), 0)); \
if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == PLUS) \
(X) = gen_rtx (PLUS, Pmode, force_operand (XEXP (X, 0), NULL_RTX),\
XEXP (X, 1)); \
if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == PLUS) \
(X) = gen_rtx (PLUS, Pmode, XEXP (X, 0), \
force_operand (XEXP (X, 1), NULL_RTX)); \
if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \
|| GET_CODE (X) == LABEL_REF) \
(X) = legitimize_address (flag_pic, X, 0, 0); \
if (memory_address_p (MODE, X)) \
goto WIN; }
and others. These macros get used multiple times of course. These are such
lovely candidates for macros, aren't they? :)
This code also nicely handles LLVM constructs that look like this:
if (isa<CastInst>(I))
...
else if (isa<BranchInst>(I))
...
else if (isa<SetCondInst>(I))
...
else if (isa<UnwindInst>(I))
...
else if (isa<VAArgInst>(I))
...
where the isa can obviously be a dyn_cast as well. Switch instructions are a
good thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11870 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 07:13:46 +00:00
Chris Lattner
7b1af15612
No need to clear the map here, it will always be empty
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11868 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 05:21:21 +00:00
Chris Lattner
af6926a382
Fix typo
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11864 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 03:45:03 +00:00
Chris Lattner
abcdf80ec6
The node doesn't have to be _no_ node flags, it just has to be complete and
...
not have any globals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11863 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 03:43:43 +00:00
Chris Lattner
1fe9874d15
Add _more_ functions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11862 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 03:43:08 +00:00
Chris Lattner
8dd8d261a4
Fix some warnings, some of which were spurious, and some of which were real
...
bugs. Thanks Brian!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11859 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 01:20:02 +00:00
Misha Brukman
23e6c1ff45
Instructions to call and return from functions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11858 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 00:37:12 +00:00
Chris Lattner
cf14e71c5e
Two changes:
...
1. Functions do not make things incomplete, only variables
2. Constant global variables no longer need to be marked incomplete, because
we are guaranteed that the initializer for the global will be in the
graph we are hacking on now. This makes resolution of indirect calls happen
a lot more in the bu pass, supports things like vtables and the C counterparts
(giant constant arrays of function pointers), etc...
Testcase here: test/Regression/Analysis/DSGraph/constant_globals.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11852 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 23:36:08 +00:00
Chris Lattner
c420ab6c25
When building local graphs, clone the initializer for constant globals into each
...
local graph that uses the global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11850 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 23:31:02 +00:00
Alkis Evlogimenos
e3fcabe068
Fix bugs found with recent addition of assertions in
...
MRegisterInfo::is{Physical,Virtual}Register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11849 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 23:21:52 +00:00
Chris Lattner
51c06abbf1
Simplify the dead node elimination stuff
...
Make the incompleteness marker faster by looping directly over the globals
instead of over the scalars to find the globals
Fix a bug where we didn't mark a global incomplete if it didn't have any
outgoing edges. This wouldn't break any current clients but is still wrong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11848 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 23:08:00 +00:00
Chris Lattner
52fc8d7ec9
Add a bunch more functions
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11847 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 23:06:40 +00:00