Duncan Sands
130254e1ff
Use of UINT_MAX requires climits, at least when
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compiling with gcc 4.3.
llvm-svn: 51145
2008-05-15 11:22:50 +00:00
Gabor Greif
48ffb6c7dc
Fix a bunch of 80col violations that arose from the Create API change. Tweak makefile targets to find these better.
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llvm-svn: 51143
2008-05-15 10:04:30 +00:00
Bill Wendling
c1d9f9604b
Situations can arise when you have a function called that returns a 'void', but
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is bitcast to return a floating point value. The result of the instruction may
not be used by the program afterwards, and LLVM will happily remove all
instructions except the call. But, on some platforms, if a value is returned as
a floating point, it may need to be removed from the stack (like x87). Thus, we
can't get rid of the bitcast even if there isn't a use of the value.
llvm-svn: 51134
2008-05-14 22:45:20 +00:00
Chris Lattner
3d3dfa7b2c
rename SimplifyCFG.cpp -> SimplifyCFGPass.cpp
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llvm-svn: 51130
2008-05-14 20:38:44 +00:00
Devang Patel
047ba6df54
Simplify internalize pass. Add test case.
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Patch by Matthijs Kooijman!
llvm-svn: 51114
2008-05-14 20:01:01 +00:00
Dan Gohman
4dc39991f8
Split the loop unroll mechanism logic out into a utility function.
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Patch by Matthijs Kooijman!
llvm-svn: 51083
2008-05-14 00:24:14 +00:00
Owen Anderson
6a2ee9af7a
Fix Analysis/BasicAA/pure-const-dce.ll. This turned out to be a correctness
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bug as well as a missed optimization. We weren't properly checking for local
dependencies before moving on to non-local ones when doing non-local read-only
call CSE.
llvm-svn: 51082
2008-05-13 23:18:30 +00:00
Dale Johannesen
676a1d026b
Fix for PR 2323, infinite loop in tail dup.
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llvm-svn: 51063
2008-05-13 20:06:43 +00:00
Owen Anderson
7f6db08b5f
Make the non-local CSE safety checks slightly more thorough.
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llvm-svn: 51035
2008-05-13 13:41:23 +00:00
Owen Anderson
c54c61634c
Add support for non-local CSE of read-only calls.
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llvm-svn: 51024
2008-05-13 08:17:22 +00:00
Dan Gohman
138a53b303
Change class' public PassInfo variables to by initialized with the
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address of the PassInfo directly instead of calling getPassInfo.
This eliminates a bunch of dynamic initializations of static data.
Also, fold RegisterPassBase into PassInfo, make a bunch of its
data members const, and rearrange some code to initialize data
members in constructors instead of using setter member functions.
llvm-svn: 51022
2008-05-13 02:05:11 +00:00
Nate Begeman
b4412e7652
80 col / tabs fixes
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llvm-svn: 51021
2008-05-13 01:48:26 +00:00
Dan Gohman
bab18cae46
Clean up the use of static and anonymous namespaces. This turned up
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several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
Owen Anderson
0256b368f8
Go back to passing the analyses around as parameters.
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llvm-svn: 50995
2008-05-12 20:15:55 +00:00
Owen Anderson
3f2d12126f
Move the various analyses used by GVN into static variables so we don't have to keep passing them around or refetching them.
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llvm-svn: 50963
2008-05-12 08:15:27 +00:00
Chris Lattner
b700ffd977
Fix various DOUTs to not call the extremely expensive Value::getName()
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method. DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated. Just call getNameSTart,
which is close enough and doesn't cause heap traffic.
llvm-svn: 50958
2008-05-11 01:55:59 +00:00
Chris Lattner
858c3299c1
Simplify code by using SwitchInst::findCaseValue instead of reimplementing it.
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llvm-svn: 50957
2008-05-10 23:56:54 +00:00
Chris Lattner
b6db834a47
don't sink invokes, even if they are readonly. This fixes a
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crash on kimwitu++.
llvm-svn: 50901
2008-05-09 15:07:33 +00:00
Duncan Sands
dd33da4795
Fix a type and formatting.
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llvm-svn: 50900
2008-05-09 12:20:10 +00:00
Chris Lattner
02ca137915
Implement PR2298. This transforms:
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~x < ~y --> y < x
-x == -y --> x == y
llvm-svn: 50882
2008-05-09 05:19:28 +00:00
Chris Lattner
8ec87dd865
restore doxygen comment.
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llvm-svn: 50881
2008-05-09 04:43:13 +00:00
Gordon Henriksen
846171a09e
Improve pass documentation and comments.
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Patch by Matthijs Kooijman!
llvm-svn: 50861
2008-05-08 17:46:35 +00:00
Chris Lattner
4c1ef3628b
More than just loads can read from memory: readonly calls like strlen
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also need to be checked for memory modifying instructions before we
can sink them. THis fixes the second half of PR2297.
llvm-svn: 50860
2008-05-08 17:37:37 +00:00
Chris Lattner
cba8b4c7e8
Make instcombine's DSE respect loads as well as stores. It is not safe to
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delete the first store in:
store x -> p
load p
store y -> p
This is for PR2297.
llvm-svn: 50859
2008-05-08 17:20:30 +00:00
Devang Patel
3dce0e9d2e
Check linkage.
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llvm-svn: 50851
2008-05-08 15:08:39 +00:00
Anton Korobeynikov
ddb93e7a02
Turn StripPointerCast() into a method
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llvm-svn: 50836
2008-05-07 22:54:15 +00:00
Dan Gohman
6ea87fa437
Fix a bug in the ComputeMaskedBits logic for multiply.
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llvm-svn: 50793
2008-05-07 00:35:55 +00:00
Anton Korobeynikov
90ee6d6616
Make StripPointerCast a common function (should we mak it method of Value instead?)
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llvm-svn: 50775
2008-05-06 22:52:30 +00:00
Owen Anderson
d82a778214
We need to update PHIs containing the exiting block, not the exit block. We really should come up with better names for these.
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llvm-svn: 50770
2008-05-06 20:55:16 +00:00
Devang Patel
c5aee6c84d
Fix typo.
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llvm-svn: 50713
2008-05-06 05:40:11 +00:00
Chris Lattner
a75e149023
fix typo Duncan noticed
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llvm-svn: 50699
2008-05-06 02:31:18 +00:00
Dan Gohman
d4a670284c
Make several variable declarations static.
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llvm-svn: 50696
2008-05-06 01:53:16 +00:00
Dan Gohman
a84b75df17
Remove uses of llvm/System/IncludeFile.h that are no longer needed.
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llvm-svn: 50695
2008-05-06 01:32:53 +00:00
Dan Gohman
faf9df7227
Correct the value of LowBits in srem and urem handling in
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ComputeMaskedBits.
llvm-svn: 50692
2008-05-06 00:51:48 +00:00
Bill Wendling
5234187c50
Fix: Some classes were derived from a class in an anonymous namespace, but they
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themselves weren't in the anonymous namespace.
llvm-svn: 50673
2008-05-05 21:37:59 +00:00
Chris Lattner
50d16c2939
Fix a crash when threading a block that includes a MRV call result.
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DemoteRegToStack doesn't work with MRVs yet, because it relies on the
ability to load/store things.
This fixes PR2285.
llvm-svn: 50667
2008-05-05 20:21:22 +00:00
Torok Edwin
a68816f876
processStore may delete the instruction, avoid
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using dyn_cast<> on already freed memory.
llvm-svn: 50618
2008-05-04 08:51:25 +00:00
Devang Patel
e8518dd7ff
Handle multiple return values.
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llvm-svn: 50604
2008-05-03 01:12:15 +00:00
Devang Patel
b3112b4417
Do not sink getresult.
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llvm-svn: 50600
2008-05-03 00:36:30 +00:00
Dan Gohman
27156711ef
Fix a mistake in the computation of leading zeros for udiv.
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llvm-svn: 50591
2008-05-02 21:30:02 +00:00
Chris Lattner
96467cc665
strength reduce exp2 into ldexp, rdar://5852514
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llvm-svn: 50586
2008-05-02 18:43:35 +00:00
Chris Lattner
e45796cb56
add a FIXME so we remember to eventually remove this code.
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llvm-svn: 50582
2008-05-02 17:18:31 +00:00
Bill Wendling
277f2a205d
Porting r50563 from Tak to mainline.
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llvm-svn: 50564
2008-05-02 00:43:20 +00:00
Dale Johannesen
d758175889
Don't try to create PHIs of struct types. Fallout
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from x86-64 calling convention work.
llvm-svn: 50545
2008-05-01 22:27:44 +00:00
Dan Gohman
793c9fed45
Fix an overaggressive SimplifyDemandedBits optimization on urem. This
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fixes the 254.gap regression on x86 and the 403.gcc regression on x86-64.
llvm-svn: 50537
2008-05-01 19:13:24 +00:00
Chris Lattner
ab0c73a95c
1) add '-debug' output
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2) Return NULL instead of false in several places for tidiness.
3) fix a bug optimizing sprintf(p, "%c", x)
llvm-svn: 50521
2008-05-01 06:39:12 +00:00
Chris Lattner
be2bafbe92
Delete the IPO simplify-libcalls and completely reimplement it as
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a FunctionPass. This makes it simpler, fixes dozens of bugs, adds
a couple of minor features, and shrinks is considerably: from
2214 to 1437 lines.
llvm-svn: 50520
2008-05-01 06:25:24 +00:00
Owen Anderson
aaa86b3249
This condition got inverted accidentally.
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llvm-svn: 50473
2008-04-30 07:16:33 +00:00
Chris Lattner
15195e00ee
move lowering of llvm.memset -> store from simplify libcalls
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to instcombine.
llvm-svn: 50472
2008-04-30 06:39:11 +00:00
Chris Lattner
844e32537d
use string length computation to generalize several xforms.
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llvm-svn: 50464
2008-04-30 03:07:53 +00:00