Correct a few comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37034 91177308-0d34-0410-b5e6-96231b3b80d8

Add passes -view-cfg and -view-cfg-only that are like -print-cfg and
-print-cfg-only except they use the ViewCFG function, which displays the
CFG rendered with graphviz with gv.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37033 91177308-0d34-0410-b5e6-96231b3b80d8

Use templates for the GraphType for DefaultDOTGraphTraits' members instead
of just using void*. This allows it to be used with graph adapters like
Inverse.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37032 91177308-0d34-0410-b5e6-96231b3b80d8

Add a addRequiredTransitiveID member function, which is to
addRequiredTransitive as addRequiredID is to addRequired.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37031 91177308-0d34-0410-b5e6-96231b3b80d8

Add a skeleton for future contents

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37028 91177308-0d34-0410-b5e6-96231b3b80d8

update comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37027 91177308-0d34-0410-b5e6-96231b3b80d8

Make the results for the rotate functions correct when rotateAmt == 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37026 91177308-0d34-0410-b5e6-96231b3b80d8

Add some things needed by the llvm-gcc version supporting bit accurate integer
types:
1. Functions to compute div/rem at the same time.
2. Further assurance that an APInt with 0 bitwidth cannot be constructed.
3. Left and right rotate operations.
4. An exactLogBase2 function which requires an exact power of two or it
   returns -1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37025 91177308-0d34-0410-b5e6-96231b3b80d8

add a link

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37024 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR1413

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37023 91177308-0d34-0410-b5e6-96231b3b80d8

this crashes globalopt

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37021 91177308-0d34-0410-b5e6-96231b3b80d8

Fix Transforms/GlobalOpt/2007-05-13-Crash.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37020 91177308-0d34-0410-b5e6-96231b3b80d8

Emit function debug frames in one atom. This will prevent us from generating incorrect assembler in case of both
debug information & exception information presented.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37019 91177308-0d34-0410-b5e6-96231b3b80d8

Emit multiple common EH frames for multiple (including blank) personality
functions. This partly fixes PR1414: now we're restricted only to one
personality function per eh frame, not per module. Further work on
"multiple personalities" topic needs representative example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37018 91177308-0d34-0410-b5e6-96231b3b80d8

add initial description of llvm top-level stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37017 91177308-0d34-0410-b5e6-96231b3b80d8

finish the description of the bitstream format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37016 91177308-0d34-0410-b5e6-96231b3b80d8

More DWARF-related things cleanup:
1. Fix PR1380
2. Apply Duncan's patch from PR1410
3. Insert workaround for "one personality function per module" as noted in PR1414
4. Emit correct debug frames for x86/linux. This partly fixes DebugInfo/2006-11-06-StackTrace.cpp: stack trace is
shown correctly, but arguments for function on top of stack are displayed incorrectly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37015 91177308-0d34-0410-b5e6-96231b3b80d8

Fix shl to produce the correct result when the bitwidth is > 64 and the
shift amount is 0. Previously this code would do a lshr by the bit width
which can lead to incorrect results.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37010 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case for shl of APInt integers > 64 bits by 0 shift amount.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37009 91177308-0d34-0410-b5e6-96231b3b80d8

Get the size of auto arrays right, regardless of its changing size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37006 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a grammaro.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37005 91177308-0d34-0410-b5e6-96231b3b80d8

fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37004 91177308-0d34-0410-b5e6-96231b3b80d8

continued description

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37003 91177308-0d34-0410-b5e6-96231b3b80d8

add a bunch of content.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37002 91177308-0d34-0410-b5e6-96231b3b80d8

first step

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37001 91177308-0d34-0410-b5e6-96231b3b80d8

Add a known QEMU problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37000 91177308-0d34-0410-b5e6-96231b3b80d8

allow partially materialized modules to be written out, which just strips out
the functions which haven't been read.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36999 91177308-0d34-0410-b5e6-96231b3b80d8

Fix lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049516.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36998 91177308-0d34-0410-b5e6-96231b3b80d8

New test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36997 91177308-0d34-0410-b5e6-96231b3b80d8

significantly improve debug output of lsr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36996 91177308-0d34-0410-b5e6-96231b3b80d8

Update comments to say "vector" instead of "packed".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36995 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36994 91177308-0d34-0410-b5e6-96231b3b80d8

Remove forward-declarations for classes that don't exist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36993 91177308-0d34-0410-b5e6-96231b3b80d8

Add explicit keywords to several constructors that now have one argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36992 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify BranchInst::getSuccessor, avoiding a conditional operator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36991 91177308-0d34-0410-b5e6-96231b3b80d8

This patch extends the LoopUnroll pass to be able to unroll loops
with unknown trip counts. This is left off by default, and a
command-line option enables it. It also begins to separate loop
unrolling into a utility routine; eventually it might be made usable
from other passes.

It currently works by inserting conditional branches between each
unrolled iteration, unless it proves that the trip count is a
multiple of a constant integer > 1, which it currently only does in
the rare case that the trip count expression is a Mul operator with
a ConstantInt operand. Eventually this information might be provided
by other sources, for example by a pass that peels/splits the loop
for this purpose.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36990 91177308-0d34-0410-b5e6-96231b3b80d8

fix regressions from my previous checking, including
Transforms/InstCombine/2006-12-08-ICmp-Combining.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36989 91177308-0d34-0410-b5e6-96231b3b80d8

Perform correct actions numbers/sizes computation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36988 91177308-0d34-0410-b5e6-96231b3b80d8

Fix action No calculation in multiple-invoke-one-LP mode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36987 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1411:
Don't try to use {} bracketing when setting a variable in site.exp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36985 91177308-0d34-0410-b5e6-96231b3b80d8

fix Transforms/InstCombine/2007-05-10-icmp-or.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36984 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase that crashes instcombine

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36983 91177308-0d34-0410-b5e6-96231b3b80d8

Drop ModuleID from comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36982 91177308-0d34-0410-b5e6-96231b3b80d8

fix a memory leak

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36981 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug where the bcreader could crash on .bc files that were an exact
multiple of the page size, due to a bug in MappedFile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36980 91177308-0d34-0410-b5e6-96231b3b80d8

Do not generate branches to entry block.  This fixes several test suite
failures on PPC (can happen only when prologue code is null)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36979 91177308-0d34-0410-b5e6-96231b3b80d8

Ooops. Some debugging stuff :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36978 91177308-0d34-0410-b5e6-96231b3b80d8

Allow multiple invokes per landing pad. This (probably) fixes PR1410.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36977 91177308-0d34-0410-b5e6-96231b3b80d8

Later computations assume we are aligned at this point.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36975 91177308-0d34-0410-b5e6-96231b3b80d8

TypeIds are indexed by j, not i

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36974 91177308-0d34-0410-b5e6-96231b3b80d8

These attributes are supported!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36973 91177308-0d34-0410-b5e6-96231b3b80d8

gar.  GCC 3.4.2 also miscompiles llvm at -O3. :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36972 91177308-0d34-0410-b5e6-96231b3b80d8

another version of gcc that miscompiles llvm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36971 91177308-0d34-0410-b5e6-96231b3b80d8

Another test for tail mergeing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36967 91177308-0d34-0410-b5e6-96231b3b80d8

Make tail merging handle many more cases (all it can, I think).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36966 91177308-0d34-0410-b5e6-96231b3b80d8

add some notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36965 91177308-0d34-0410-b5e6-96231b3b80d8

Can't fold bit_convert into truncating store.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36963 91177308-0d34-0410-b5e6-96231b3b80d8

Can't fold the bit_convert is the store is a truncating store.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36962 91177308-0d34-0410-b5e6-96231b3b80d8

Do not assert, when case range split metric is zero and JTs are not allowed: just emit binary tree in this case. This
fixes PR1403.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36959 91177308-0d34-0410-b5e6-96231b3b80d8

Add two ARM known problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36958 91177308-0d34-0410-b5e6-96231b3b80d8

PR1399 test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36957 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049387.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36956 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR1333
Testcases :
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049451.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049452.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36955 91177308-0d34-0410-b5e6-96231b3b80d8

New test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36954 91177308-0d34-0410-b5e6-96231b3b80d8

New test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36953 91177308-0d34-0410-b5e6-96231b3b80d8

arm no longer experimental, c++ eh support is?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36952 91177308-0d34-0410-b5e6-96231b3b80d8

add a meta-blurb about the 2.0 release

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36951 91177308-0d34-0410-b5e6-96231b3b80d8

strip the llvm 1.9 info out of the release notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36950 91177308-0d34-0410-b5e6-96231b3b80d8

Switch BCC, MOVCCr, etc. to PredicateOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36948 91177308-0d34-0410-b5e6-96231b3b80d8

PredicateOperand can be used as a normal operand for isel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36947 91177308-0d34-0410-b5e6-96231b3b80d8

If a PredicateOperand has an empty ExecuteAlways field, treat it as if a normal operand for isel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36946 91177308-0d34-0410-b5e6-96231b3b80d8

add the & back.  I'm not sure why bill removed it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36945 91177308-0d34-0410-b5e6-96231b3b80d8

Change names from RA to something unique to get rid of naming conflicts with
certain linkers...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36944 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate MarkVirtRegAliveInBlock recursion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36943 91177308-0d34-0410-b5e6-96231b3b80d8

Add MachineBasicBlock preds / succs reverse iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36942 91177308-0d34-0410-b5e6-96231b3b80d8

New test for PR1400

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36941 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for CodeGenPrepare bug fixed yesterday

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36940 91177308-0d34-0410-b5e6-96231b3b80d8

R0 is a sub-register of X0, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36939 91177308-0d34-0410-b5e6-96231b3b80d8

Fix various whitespace inconsistencies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36936 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the comment for ApproximateLoopSize to reflect what it actually does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36935 91177308-0d34-0410-b5e6-96231b3b80d8

Spare '&' in the RUN line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36933 91177308-0d34-0410-b5e6-96231b3b80d8

New test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36930 91177308-0d34-0410-b5e6-96231b3b80d8

update comments, no functionality change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36929 91177308-0d34-0410-b5e6-96231b3b80d8

Make a preemptive bitcode format change to support PR1146.  This lets us do
pr1146 in llvm 2.1 without ugly code to emulate old behavior.  This should
be merged into the 2.0 release branch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36928 91177308-0d34-0410-b5e6-96231b3b80d8

Bumping cvs version number

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36922 91177308-0d34-0410-b5e6-96231b3b80d8

Bump version number in cvs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36920 91177308-0d34-0410-b5e6-96231b3b80d8

move this out of Codegen/Generic, because it requires the ARM backend to be
linked into llc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36919 91177308-0d34-0410-b5e6-96231b3b80d8

move to CodeGen/ARM/2007-05-07-tailmerge-1.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36918 91177308-0d34-0410-b5e6-96231b3b80d8

Don't generate branch to entry block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36917 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR1390 in a better way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36916 91177308-0d34-0410-b5e6-96231b3b80d8

Fix tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36913 91177308-0d34-0410-b5e6-96231b3b80d8

Add some tests for (conv (load x)) -> (load (conv*)x) xform.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36912 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36911 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot a check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36910 91177308-0d34-0410-b5e6-96231b3b80d8

This is no longer needed after enabling the DAG combiner xform.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36909 91177308-0d34-0410-b5e6-96231b3b80d8

Enable a couple of xforms:
- (store (bitconvert v)) -> (store v) if resultant store does not require
higher alignment
- (bitconvert (load v)) -> (load (bitconvert*)v) if resultant load does not
require higher alignment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36908 91177308-0d34-0410-b5e6-96231b3b80d8

Handle some non-exit blocks in tail merging.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36907 91177308-0d34-0410-b5e6-96231b3b80d8

Parameter attributes on invoke calls were being lost due to the wrong
attribute index being used.  Fix proposed by Anton Korobeynikov, who
asked me to implement and commit it for him.  This is PR1398.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36906 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for PR1398.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36905 91177308-0d34-0410-b5e6-96231b3b80d8

Initialize variable to null so it has a value in the off chance that a
memory buffer couldn't be allocated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36904 91177308-0d34-0410-b5e6-96231b3b80d8