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3736 Commits

Author SHA1 Message Date
Duncan Sands
cbb8badce8 Make PruneEH update the nounwind/noreturn attributes 
on functions as it calculates them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44802 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 19:09:40 +00:00
Gordon Henriksen
80a75bfae9 Adding a collector name attribute to Function in the IR. These 
methods are new to Function:

  bool hasCollector() const;
  const std::string &getCollector() const;
  void setCollector(const std::string &);
  void clearCollector();

The assembly representation is as such:

  define void @f() gc "shadow-stack" { ...

The implementation uses an on-the-side table to map Functions to 
collector names, such that there is no overhead. A StringPool is 
further used to unique collector names, which are extremely
likely to be unique per process.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 03:18:06 +00:00
Owen Anderson
5fc4abac3d Fix several cache coherence bugs in MemDep/GVN that were found. Also add some (disabled) debugging code 
to make such problems easier to diagnose in the future, written by Duncan Sands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44695 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 01:37:09 +00:00
Chris Lattner
c95ba44b30 simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44655 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 06:25:04 +00:00
Chris Lattner
348f665ee2 move some ashr-specific code out of commonShiftTransforms into visitAShr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44650 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 01:59:46 +00:00
Evan Cheng
bdcb726fca If both result of the {s|z}xt and its source are live out, rewrite all uses of the source with result of extension. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44643 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-05 23:58:20 +00:00
Duncan Sands
a3355ffb3d Rather than having special rules like "intrinsics cannot 
throw exceptions", just mark intrinsics with the nounwind
attribute.  Likewise, mark intrinsics as readnone/readonly
and get rid of special aliasing logic (which didn't use
anything more than this anyway).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44544 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-03 20:06:50 +00:00
Chris Lattner
4cf4b69330 update file comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44543 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-03 19:43:18 +00:00
Devang Patel
5ffdc56f53 If ExitValue operand is also defined in Loop header then 
insert new ExitValue after this operand definition.

This fixes PR1828.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44539 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-03 19:17:21 +00:00
Duncan Sands
dff6710717 Integrate the readonly/readnone logic more deeply 
into alias analysis.  This meant updating the API
which now has versions of the getModRefBehavior,
doesNotAccessMemory and onlyReadsMemory methods
which take a callsite parameter.  These should be
used unless the callsite is not known, since in
general they can do a better job than the versions
that take a function.  Also, users should no longer
call the version of getModRefBehavior that takes
both a function and a callsite.  To reduce the
chance of misuse it is now protected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44487 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-01 07:51:45 +00:00
Owen Anderson
1fb136464d Fix a miscompilation in spiff on PPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44437 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-29 18:02:22 +00:00
Duncan Sands
afa3b6da11 Add some convenience methods for querying attributes, and 
use them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44403 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 17:07:01 +00:00
Duncan Sands
dc024674ff Fix PR1146: parameter attributes are longer part of 
the function type, instead they belong to functions
and function calls.  This is an updated and slightly
corrected version of Reid Spencer's original patch.
The only known problem is that auto-upgrading of
bitcode files doesn't seem to work properly (see
test/Bitcode/AutoUpgradeIntrinsics.ll).  Hopefully
a bitcode guru (who might that be? :) ) will fix it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44359 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 13:23:08 +00:00
Owen Anderson
d735ee85db Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44348 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 03:43:35 +00:00
Owen Anderson
a16bbc9aa7 Fix another bug that was causing siod to fail. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44325 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-26 07:17:19 +00:00
Owen Anderson
00a6d1448d Allow GVN to eliminate read-only function calls when it can detect that they are redundant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44323 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-26 02:26:36 +00:00
Anton Korobeynikov
fd94dd58ff Remove another leak. Due to some reason AliasSetTracker didn't had any dtor... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44320 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 23:52:02 +00:00
Chris Lattner
cfa597569d Implement PR1822 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44318 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 21:27:53 +00:00
Duncan Sands
827cde1c83 Fix PR1816. If a bitcast of a function only exists because of a 
trivial difference in function attributes, allow calls to it to
be converted to direct calls.  Based on a patch by Török Edwin.
While there, move the various lists of mutually incompatible
parameters etc out of the verifier and into ParameterAttributes.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44315 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 14:10:56 +00:00
Chris Lattner
148083a529 add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44293 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-23 22:35:18 +00:00
Duncan Sands
bb65098d2c Remove some logic I thoughtlessly copied over 
from the old ADCE implementation (there it was
correct because the transform was being done
for read-only functions).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44287 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-23 09:10:17 +00:00
Chris Lattner
eec8b9a7d6 Fix PR1817. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44284 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 23:47:13 +00:00
Anton Korobeynikov
311c4b6e98 Don't crash on bogus llvm.noinline. This is first part of PR1817 (preventing reduction) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44281 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 22:30:10 +00:00
Duncan Sands
73d4bb6676 Turn invokes of nounwind functions into ordinary calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44280 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 22:24:59 +00:00
Duncan Sands
5ef7be79e0 Readonly/readnone functions are allowed to throw 
exceptions, so don't turn invokes of them into
calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44278 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 21:40:06 +00:00
Nick Lewycky
79a2c4f7a9 typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44262 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-21 05:21:54 +00:00
Dan Gohman
adf3eab773 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44234 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-19 15:30:20 +00:00
Dale Johannesen
b51b4b5fdf Remove indeterminism from a loop. We think this will 
fix an occasional nonrepeatable bootstrap failure we've
been seeing on Darwin.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44202 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-17 02:48:01 +00:00
Chris Lattner
a7d1ab0ab3 Fix PR1800 by correcting mistaken logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44188 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-16 06:04:17 +00:00
Chris Lattner
701bc4264d Fix PR1788 by taking the approach suggested by Richard Smith. 
Thanks to him for his detailed analysis of the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44162 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-15 06:10:55 +00:00
Nick Lewycky
6fa98b1320 Allow the block extractor take to take a list of basic blocks to not extract 
from a file containing Function/BasicBlock pairings. This is not safe against
anonymous or abnormally-named Funcs or BBs.

Make bugpoint use this interface to pass the BBs list to the child bugpoint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44101 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 06:47:06 +00:00
Chris Lattner
1b12d8855d Implement PR1796 and Transforms/SimplifyCFG/noreturn-call.ll 
by inserting unreachable after no-return calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44099 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 06:19:25 +00:00
Chris Lattner
19450241e5 Fix the regression on Transforms/GlobalOpt/deadglobal-2.ll from my 
patch on friday.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44068 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-13 21:46:23 +00:00
Chris Lattner
b42c8f7101 Implement PR1786 by iterating between dead cycle elimination 
and simplifycfg in the rare cases when it is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44044 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-13 07:32:38 +00:00
Chris Lattner
7b52fe7272 Tighten up a check for folding away loads from (newly constant) globals. This 
fixes a crash on Transforms/GlobalOpt/2007-11-09-GEP-GEP-Crash.ll and 
rdar://5585488.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43949 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 17:33:02 +00:00
Anton Korobeynikov
20a990e16e Fix indent 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43941 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 12:34:20 +00:00
Anton Korobeynikov
344ef19772 Forget to commit users part of value mapper interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43940 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 12:27:04 +00:00
Anton Korobeynikov
8be8137c3b And delete this one 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43939 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 12:22:04 +00:00
Andrew Lenharth
b410df995c Better check 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43897 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 18:45:15 +00:00
Andrew Lenharth
ab9338eb9f Fix PR1780 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 17:39:28 +00:00
Chris Lattner
f67f73a519 fix const correctness, BB is const, so its predecessors are too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43780 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 22:07:40 +00:00
Chris Lattner
6390ae0a4a don't put erase or query for non-allocainst pointers in an set of allocainsts*'s 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43779 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 22:07:22 +00:00
Chris Lattner
cf5008a792 Implement PR1777 by detecting dependent phis that 
all compute the same value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43777 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 21:52:06 +00:00
Duncan Sands
91508a490b At the point of calculating the shift amount, the 
type of SV has changed from what it originally was.
However we need the store width of the original.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 20:39:11 +00:00
Chris Lattner
bde90f0fc1 wrap long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43745 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 01:15:27 +00:00
Dan Gohman
cff550995b Fix an abort in instcombine when folding creates a vector rem instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 23:16:33 +00:00
Devang Patel
5d01aa484f If a value is incoming from outside the loop then the value does not need remapping and the value is never tracked through LastValueMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43728 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 19:32:30 +00:00
Gordon Henriksen
4e1be6d5ea Deleting redundant copy of block extractor pass. See also PR1775. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43694 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 01:54:05 +00:00
Duncan Sands
18b0ca854f If a long double is in a packed struct, it may be 
that there is no padding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43691 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 00:35:07 +00:00
Gordon Henriksen
c86b67742a Finishing initial docs for all transformations in Passes.html. 
Also cleaned up some comments in source files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43674 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-04 16:15:04 +00:00