Tanya Lattner [Sun, 1 May 2005 16:14:34 +0000 (16:14 +0000)]
Adding ModuloSched SB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21648
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Chris Lattner [Sun, 1 May 2005 04:42:15 +0000 (04:42 +0000)]
Implement getelementptr.ll:test11
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21647
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Chris Lattner [Sun, 1 May 2005 04:41:57 +0000 (04:41 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21646
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Chris Lattner [Sun, 1 May 2005 04:24:53 +0000 (04:24 +0000)]
Check for volatile loads only once.
Implement load.ll:test7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21645
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 1 May 2005 04:24:15 +0000 (04:24 +0000)]
add a new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21644
91177308-0d34-0410-b5e6-
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Tanya Lattner [Sun, 1 May 2005 01:27:47 +0000 (01:27 +0000)]
SMS for superblocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21643
91177308-0d34-0410-b5e6-
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Tanya Lattner [Sun, 1 May 2005 01:25:53 +0000 (01:25 +0000)]
Added extra constructor for superblocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21642
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Tanya Lattner [Sat, 30 Apr 2005 23:07:59 +0000 (23:07 +0000)]
Fixed bug in searchPath function for finding nodes between two recurrences.
Changed dependence analyzer to only use dep distances of 2 or less.
This is experimental.
Changed MSchedGraph to be able to represent more then one BB (first steps).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21641
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Andrew Lenharth [Sat, 30 Apr 2005 14:19:13 +0000 (14:19 +0000)]
I was sure I had thought about this and there was a reason it should work.
But it is entirely possible I am just crazy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21640
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Alkis Evlogimenos [Sat, 30 Apr 2005 07:13:31 +0000 (07:13 +0000)]
Do not use deprecated APIs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21639
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Reid Spencer [Sat, 30 Apr 2005 06:45:47 +0000 (06:45 +0000)]
Fix a comment that stated the wrong thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21638
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Chris Lattner [Sat, 30 Apr 2005 04:44:07 +0000 (04:44 +0000)]
Eliminate some random whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21637
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Chris Lattner [Sat, 30 Apr 2005 04:43:14 +0000 (04:43 +0000)]
Codegen and legalize sin/cos/llvm.sqrt as FSIN/FCOS/FSQRT calls. This patch
was contributed by Morten Ofstad, with some minor tweaks and bug fixes added
by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21636
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Chris Lattner [Sat, 30 Apr 2005 04:41:27 +0000 (04:41 +0000)]
add sin/cos tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21635
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Chris Lattner [Sat, 30 Apr 2005 04:26:56 +0000 (04:26 +0000)]
Doesn't support these nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21634
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Chris Lattner [Sat, 30 Apr 2005 04:26:06 +0000 (04:26 +0000)]
This target doesn't support the FSIN/FCOS/FSQRT nodes yet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21633
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Chris Lattner [Sat, 30 Apr 2005 04:25:35 +0000 (04:25 +0000)]
Add support for FSIN/FCOS when unsafe math ops are enabled. Patch contributed by
Morten Ofstad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21632
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Chris Lattner [Sat, 30 Apr 2005 04:12:40 +0000 (04:12 +0000)]
Add support for llvm.sqrt and sin/cos if unsafe math optimizations are enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21631
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Chris Lattner [Sat, 30 Apr 2005 04:09:52 +0000 (04:09 +0000)]
Expose an option allowing unsafe math optimizations. Patch contributed by
Morten Ofstad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21630
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Chris Lattner [Sat, 30 Apr 2005 04:07:50 +0000 (04:07 +0000)]
Lower llvm.sqrt -> fsqrt/sqrt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21629
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Chris Lattner [Sat, 30 Apr 2005 04:07:15 +0000 (04:07 +0000)]
Add a test for llvm.sqrt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21628
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Chris Lattner [Sat, 30 Apr 2005 03:44:07 +0000 (03:44 +0000)]
Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21627
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Reid Spencer [Sat, 30 Apr 2005 03:17:54 +0000 (03:17 +0000)]
* Don't depend on "guessing" what a FILE* is, just require that the actual
type be obtained from a CallInst we're optimizing.
* Make it possible for getConstantStringLength to return the ConstantArray
that it extracts in case the content is needed by an Optimization.
* Implement the strcmp optimization
* Implement the toascii optimization
This pass is now firing several to many times in the following MultiSource
tests:
Applications/Burg - 7 (strcat,strcpy)
Applications/siod - 13 (strcat,strcpy,strlen)
Applications/spiff - 120 (exit,fputs,strcat,strcpy,strlen)
Applications/treecc - 66 (exit,fputs,strcat,strcpy)
Applications/kimwitu++ - 34 (strcmp,strcpy,strlen)
Applications/SPASS - 588 (exit,fputs,strcat,strcpy,strlen)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21626
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Reid Spencer [Sat, 30 Apr 2005 03:06:36 +0000 (03:06 +0000)]
* Fix signed/unsigned usage problem
* Rearrange for readability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21625
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Reid Spencer [Sat, 30 Apr 2005 01:00:52 +0000 (01:00 +0000)]
A new test case for the ToAsciiOptimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21624
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Reid Spencer [Sat, 30 Apr 2005 00:52:04 +0000 (00:52 +0000)]
A new test case for the StrCmpOptimization in -simplify-libcalls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21623
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Reid Spencer [Fri, 29 Apr 2005 23:02:15 +0000 (23:02 +0000)]
This is StrCpy, NOT StrCat!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21622
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Reid Spencer [Fri, 29 Apr 2005 23:01:21 +0000 (23:01 +0000)]
Get the name of the pass right in the documentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21621
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Reid Spencer [Fri, 29 Apr 2005 10:11:23 +0000 (10:11 +0000)]
Fix the success criteria for the test to make call instructions with "pow"
not just any occurrence of "pow".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21620
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Reid Spencer [Fri, 29 Apr 2005 10:10:17 +0000 (10:10 +0000)]
Actually make this pass test something related to fputs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21619
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Reid Spencer [Fri, 29 Apr 2005 09:39:47 +0000 (09:39 +0000)]
Implement the optimizations for "pow" and "fputs" library calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21618
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Reid Spencer [Fri, 29 Apr 2005 07:19:00 +0000 (07:19 +0000)]
Add a test case for the puts libcall optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21616
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Reid Spencer [Fri, 29 Apr 2005 06:01:28 +0000 (06:01 +0000)]
Add a testcase for optimizing the strcpy libcall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21615
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Reid Spencer [Fri, 29 Apr 2005 05:55:35 +0000 (05:55 +0000)]
Remove optimizations that don't require both operands to be constant. These
are moved to simplify-libcalls pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21614
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Reid Spencer [Fri, 29 Apr 2005 05:47:05 +0000 (05:47 +0000)]
New test case for testing pow(3) math library optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21613
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Jeff Cohen [Fri, 29 Apr 2005 03:05:44 +0000 (03:05 +0000)]
Consistently use 'class' to silence VC++
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21612
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Reid Spencer [Thu, 28 Apr 2005 23:01:59 +0000 (23:01 +0000)]
* Add constant folding for additional floating point library calls such as
sinh, cosh, etc.
* Make the name comparisons for the fp libcalls a little more efficient by
switching on the first character of the name before doing comparisons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21611
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Chris Lattner [Thu, 28 Apr 2005 22:07:18 +0000 (22:07 +0000)]
Add support for FSQRT node, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21610
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Chris Lattner [Thu, 28 Apr 2005 21:52:31 +0000 (21:52 +0000)]
These functions can set errno!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21609
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Chris Lattner [Thu, 28 Apr 2005 21:50:05 +0000 (21:50 +0000)]
Add some new X86 instrs, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21608
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Chris Lattner [Thu, 28 Apr 2005 21:48:42 +0000 (21:48 +0000)]
Codegen fabs/fabsf as FABS. Patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21607
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Chris Lattner [Thu, 28 Apr 2005 21:44:33 +0000 (21:44 +0000)]
Legalize FSQRT, FSIN, FCOS nodes, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21606
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Chris Lattner [Thu, 28 Apr 2005 21:44:03 +0000 (21:44 +0000)]
Add FSQRT, FSIN, FCOS nodes, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21605
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Reid Spencer [Thu, 28 Apr 2005 18:05:16 +0000 (18:05 +0000)]
Remove from the TODO list those optimizations that are already handled by
constant folding implemented in lib/Transforms/Utils/Local.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21604
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Reid Spencer [Thu, 28 Apr 2005 04:40:06 +0000 (04:40 +0000)]
Document additional libcall transformations that need to be written.
Help Wanted!
There's a lot of them to write.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21603
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Reid Spencer [Wed, 27 Apr 2005 21:29:20 +0000 (21:29 +0000)]
Doxygenate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21602
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Chris Lattner [Wed, 27 Apr 2005 20:12:17 +0000 (20:12 +0000)]
remove 'statement with no effect' warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21600
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Andrew Lenharth [Wed, 27 Apr 2005 20:10:01 +0000 (20:10 +0000)]
Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends.
(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*. Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21599
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Chris Lattner [Wed, 27 Apr 2005 18:57:15 +0000 (18:57 +0000)]
Unbreak the sparc backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21598
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Reid Spencer [Wed, 27 Apr 2005 17:46:54 +0000 (17:46 +0000)]
More Cleanup:
* Name the instructions by appending to name of original
* Factor common part out of a switch statement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21597
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Andrew Lenharth [Wed, 27 Apr 2005 17:32:41 +0000 (17:32 +0000)]
import fix and plot multiple lines at once
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21596
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Andrew Lenharth [Wed, 27 Apr 2005 16:41:50 +0000 (16:41 +0000)]
Generate a gnuplot script for any program and any test (like llc or gcc)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21593
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Andrew Lenharth [Wed, 27 Apr 2005 16:03:01 +0000 (16:03 +0000)]
So you want to import nightly tester data into a data base? Have we got the perl script for you
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21592
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Andrew Lenharth [Wed, 27 Apr 2005 14:57:26 +0000 (14:57 +0000)]
fix for parse, and a start at db import. Using CVS as scp :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21591
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Duraid Madina [Wed, 27 Apr 2005 11:57:39 +0000 (11:57 +0000)]
clean up some warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21590
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Reid Spencer [Wed, 27 Apr 2005 07:54:40 +0000 (07:54 +0000)]
This is a cleanup commit:
* Correct stale documentation in a few places
* Re-order the file to better associate things and reduce line count
* Make the pass thread safe by caching the Function* objects needed by the
optimizers in the pass object instead of globally.
* Provide the SimplifyLibCalls pass object to the optimizer classes so they
can access cached Function* objects and TargetData info
* Make sure the pass resets its cache if the Module passed to runOnModule
changes
* Rename CallOptimizer LibCallOptimization. All the classes are named
*Optimization while the objects are *Optimizer.
* Don't cache Function* in the optimizer objects because they could be used
by multiple PassManager's running in multiple threads
* Add an optimization for strcpy which is similar to strcat
* Add a "TODO" list at the end of the file for ideas on additional libcall
optimizations that could be added (get ideas from other compilers).
Sorry for the huge diff. Its mostly reorganization of code. That won't
happen again as I believe the design and infrastructure for this pass is
now done or close to it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21589
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Chris Lattner [Wed, 27 Apr 2005 04:52:23 +0000 (04:52 +0000)]
detect functions that never return, and turn the instruction following a
call to them into an 'unreachable' instruction.
This triggers a bunch of times, particularly on gcc:
gzip: 36
gcc: 601
eon: 12
bzip: 38
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21587
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Chris Lattner [Wed, 27 Apr 2005 04:51:01 +0000 (04:51 +0000)]
Test the noreturn function optimization
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21586
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Reid Spencer [Wed, 27 Apr 2005 02:22:47 +0000 (02:22 +0000)]
Add the simplify-libcalls pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21585
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Andrew Lenharth [Wed, 27 Apr 2005 02:13:20 +0000 (02:13 +0000)]
A first step towards being able to do more interesting things with the nightly tester data. Moreinteresting things will come soon, so tune in
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21584
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Reid Spencer [Wed, 27 Apr 2005 00:20:23 +0000 (00:20 +0000)]
Prefix the debug statistics so they group together.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21583
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Reid Spencer [Wed, 27 Apr 2005 00:05:45 +0000 (00:05 +0000)]
In debug builds, make a statistic for each kind of call optimization. This
helps track down what gets triggered in the pass so its easier to identify
good test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21582
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Chris Lattner [Tue, 26 Apr 2005 23:53:25 +0000 (23:53 +0000)]
This analysis doesn't take 'throwing' into consideration, it looks at
'unwinding'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21581
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Reid Spencer [Tue, 26 Apr 2005 23:07:08 +0000 (23:07 +0000)]
Fix up the debug statement to actually use a newline .. radical concept.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21580
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Reid Spencer [Tue, 26 Apr 2005 23:05:17 +0000 (23:05 +0000)]
Uh, this isn't argpromotion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21579
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Reid Spencer [Tue, 26 Apr 2005 23:02:16 +0000 (23:02 +0000)]
Add some debugging output so we can tell which calls are getting triggered
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21578
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Chris Lattner [Tue, 26 Apr 2005 22:57:07 +0000 (22:57 +0000)]
no parens
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21577
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Chris Lattner [Tue, 26 Apr 2005 22:56:16 +0000 (22:56 +0000)]
update some paths
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21576
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Reid Spencer [Tue, 26 Apr 2005 22:49:48 +0000 (22:49 +0000)]
No, seriously folks, memcpy really does return void.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21575
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Reid Spencer [Tue, 26 Apr 2005 22:46:23 +0000 (22:46 +0000)]
memcpy returns void!!!!!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21574
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Reid Spencer [Tue, 26 Apr 2005 20:50:44 +0000 (20:50 +0000)]
Convert the remainder of the intrinsic function prototypes to "declare"
form from the "call" form.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21573
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Reid Spencer [Tue, 26 Apr 2005 20:41:16 +0000 (20:41 +0000)]
Use the declare syntax not the call syntax for intrinsic prototypes so
the uninitiated reader is not confused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21572
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Chris Lattner [Tue, 26 Apr 2005 20:03:33 +0000 (20:03 +0000)]
don't let Reid build void*'s :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21571
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Reid Spencer [Tue, 26 Apr 2005 19:55:57 +0000 (19:55 +0000)]
Fix some bugs found by running on llvm-test:
* MemCpyOptimization can only be optimized if the 3rd and 4th arguments are
constants and we weren't checking for that.
* The result of llvm.memcpy (and llvm.memmove) is void* not sbyte*, put in
a cast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21570
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Reid Spencer [Tue, 26 Apr 2005 19:13:17 +0000 (19:13 +0000)]
Changes From Review Feedback:
* Have the SimplifyLibCalls pass acquire the TargetData and pass it down to
the optimization classes so they can use it to make better choices for
the signatures of functions, etc.
* Rearrange the code a little so the utility functions are closer to their
usage and keep the core of the pass near the top of the files.
* Adjust the StrLen pass to get/use the correct prototype depending on the
TargetData::getIntPtrType() result. The result of strlen is size_t which
could be either uint or ulong depending on the platform.
* Clean up some coding nits (cast vs. dyn_cast, remove redundant items from
a switch, etc.)
* Implement the MemMoveOptimization as a twin of MemCpyOptimization (they
only differ in name).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21569
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Reid Spencer [Tue, 26 Apr 2005 19:05:51 +0000 (19:05 +0000)]
Add a test case for MemMove.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21568
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Reid Spencer [Tue, 26 Apr 2005 19:04:46 +0000 (19:04 +0000)]
Result of strlen is size_t which is either uint or ulong, not int.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21567
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Chris Lattner [Tue, 26 Apr 2005 14:48:28 +0000 (14:48 +0000)]
Make interval partition print correctly, patch contributed by
Vladimir Prus!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21566
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Chris Lattner [Tue, 26 Apr 2005 14:40:41 +0000 (14:40 +0000)]
Fix the compile failures from last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21565
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Duraid Madina [Tue, 26 Apr 2005 09:42:50 +0000 (09:42 +0000)]
constmul bugfix: multiply by 27611 was broken
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21564
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Duraid Madina [Tue, 26 Apr 2005 08:43:47 +0000 (08:43 +0000)]
clean up the code! (oops) lots more cleaning left, however.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21563
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Reid Spencer [Tue, 26 Apr 2005 07:45:18 +0000 (07:45 +0000)]
* Merge get_GVInitializer and getCharArrayLength into a single function
named getConstantStringLength. This is the common part of StrCpy and
StrLen optimizations and probably several others, yet to be written. It
performs all the validity checks for looking at constant arrays that are
supposed to be null-terminated strings and then computes the actual
length of the string.
* Implement the MemCpyOptimization class. This just turns memcpy of 1, 2, 4
and 8 byte data blocks that are properly aligned on those boundaries into
a load and a store. Much more could be done here but alignment
restrictions and lack of knowledge of the target instruction set prevent
use from doing significantly more. That will have to be delegated to the
code generators as they lower llvm.memcpy calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21562
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Reid Spencer [Tue, 26 Apr 2005 07:40:40 +0000 (07:40 +0000)]
Add a new test case for the llvm.memcpy simplification case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21561
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Duraid Madina [Tue, 26 Apr 2005 07:23:02 +0000 (07:23 +0000)]
* Add code to reduce multiplies by constant integers to shifts, adds and
subtracts. This is a very rough and nasty implementation of Lefevre's
"pattern finding" algorithm. With a few small changes though, it should
end up beating most other methods in common use, regardless of the size
of the constant (currently, it's often one or two shifts worse)
TODO: rewrite it so it's not hideously ugly (this is a translation from
perl, which doesn't help ;)
bypass most of it for multiplies by 2^n+1
(eventually) teach it that some combinations of shift+add are
cheaper than others (e.g. shladd on ia64, scaled adds on alpha)
get it to try multiple booth encodings in search of the cheapest
routine
make it work for negative constants
This is hacked up as a DAG->DAG transform, so once I clean it up I hope
it'll be pulled out of here and put somewhere else. The only thing backends
should really have to worry about for now is where to draw the line
between using this code vs. going ahead and doing an integer multiply
anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21560
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Reid Spencer [Tue, 26 Apr 2005 05:24:00 +0000 (05:24 +0000)]
* Implement StrLenOptimization
* Factor out commonalities between StrLenOptimization and StrCatOptimization
* Make sure that signatures return sbyte* not void*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21559
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Reid Spencer [Tue, 26 Apr 2005 05:22:38 +0000 (05:22 +0000)]
* Add a test case for StrLenOptimization
* Rename ExitInMain and StrCat tests so they don't have the date the
regression was entered since they are feature tests, not regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21558
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Reid Spencer [Tue, 26 Apr 2005 03:26:15 +0000 (03:26 +0000)]
Incorporate feedback from Chris:
* Change signatures of OptimizeCall and ValidateCalledFunction so they are
non-const, allowing the optimization object to be modified. This is in
support of caching things used across multiple calls.
* Provide two functions for constructing and caching function types
* Modify the StrCatOptimization to cache Function objects for strlen and
llvm.memcpy so it doesn't regenerate them on each call site. Make sure
these are invalidated each time we start the pass.
* Handle both a GEP Instruction and a GEP ConstantExpr
* Add additional checks to make sure we really are dealing with an arary of
sbyte and that all the element initializers are ConstantInt or
ConstantExpr that reduce to ConstantInt.
* Make sure the GlobalVariable is constant!
* Don't use ConstantArray::getString as it can fail and it doesn't give us
the right thing. We must check for null bytes in the middle of the array.
* Use llvm.memcpy instead of memcpy so we can factor alignment into it.
* Don't use void* types in signatures, replace with sbyte* instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21555
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Jeff Cohen [Tue, 26 Apr 2005 02:57:49 +0000 (02:57 +0000)]
Add SimplyLibCalls.cpp to VC++ build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21554
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Reid Spencer [Tue, 26 Apr 2005 02:33:25 +0000 (02:33 +0000)]
Fix RUN: line to not always pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21553
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Chris Lattner [Tue, 26 Apr 2005 01:18:33 +0000 (01:18 +0000)]
Fold (X > -1) | (Y > -1) --> (X&Y > -1)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21552
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Reid Spencer [Mon, 25 Apr 2005 21:20:38 +0000 (21:20 +0000)]
Changes due to code review and new implementation:
* Don't use std::string for the function names, const char* will suffice
* Allow each CallOptimizer to validate the function signature before
doing anything
* Repeatedly loop over the functions until an iteration produces
no more optimizations. This allows one optimization to insert a
call that is optimized by another optimization.
* Implement the ConstantArray portion of the StrCatOptimization
* Provide a template for the MemCpyOptimization
* Make ExitInMainOptimization split the block, not delete everything
after the return instruction.
(This covers revision 1.3 and 1.4, as the 1.3 comments were botched)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21548
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Chris Lattner [Mon, 25 Apr 2005 21:20:28 +0000 (21:20 +0000)]
implement some more logical compares with constants, so that:
int foo1(int x, int y) {
int t1 = x >= 0;
int t2 = y >= 0;
return t1 & t2;
}
int foo2(int x, int y) {
int t1 = x == -1;
int t2 = y == -1;
return t1 & t2;
}
produces:
_foo1:
or r2, r4, r3
srwi r2, r2, 31
xori r3, r2, 1
blr
_foo2:
and r2, r4, r3
addic r2, r2, 1
li r2, 0
addze r3, r2
blr
instead of:
_foo1:
srwi r2, r4, 31
xori r2, r2, 1
srwi r3, r3, 31
xori r3, r3, 1
and r3, r2, r3
blr
_foo2:
addic r2, r4, 1
li r2, 0
addze r2, r2
addic r3, r3, 1
li r3, 0
addze r3, r3
and r3, r2, r3
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21547
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Reid Spencer [Mon, 25 Apr 2005 21:11:48 +0000 (21:11 +0000)]
Lots of changes based on review and new functionality:
* Use a
\1a
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21546
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Reid Spencer [Mon, 25 Apr 2005 21:08:34 +0000 (21:08 +0000)]
Update the test case to handle a few more (degenerate) cases and remove
the restriction that it is an XFAIL because it now passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21545
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Chris Lattner [Mon, 25 Apr 2005 21:03:25 +0000 (21:03 +0000)]
Codegen x < 0 | y < 0 as (x|y) < 0. This allows us to compile this to:
_foo:
or r2, r4, r3
srwi r3, r2, 31
blr
instead of:
_foo:
srwi r2, r4, 31
srwi r3, r3, 31
or r3, r2, r3
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21544
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Chris Lattner [Mon, 25 Apr 2005 20:50:33 +0000 (20:50 +0000)]
Make dominates(A,B) work with post dominators. Patch contributed by
Naveen Neelakantam, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21543
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Tanya Lattner [Mon, 25 Apr 2005 20:36:56 +0000 (20:36 +0000)]
Added question about turning off all optimizations. I think this has been asked once or twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21542
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Chris Lattner [Mon, 25 Apr 2005 20:17:30 +0000 (20:17 +0000)]
implement getelementptr.ll:test10
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21541
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Chris Lattner [Mon, 25 Apr 2005 20:17:16 +0000 (20:17 +0000)]
rename fn
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21540
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Chris Lattner [Mon, 25 Apr 2005 20:17:00 +0000 (20:17 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21539
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