Shorten and correct some function-header comments.

Make "verbose" output MUCH nicer. Now it tells you when you are linking a
bytecode file, or an archive, and whether it's because you called it by name,
or because you gave it a -l option, and it says "Trying" before it takes
action and prints a message in the past tense afterwards.

Make LinkFiles not skip the first file in Files.

Make LinkFiles warn you if it can't find a file and LLVM_LIB_SEARCH_PATH is
unset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9747 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9746 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the problem with running cleanups in bugpoint:  We were deleting arguments
of intrinsic functions, causing the verifier to fail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9745 91177308-0d34-0410-b5e6-96231b3b80d8

Bugpoint no longer has this option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9744 91177308-0d34-0410-b5e6-96231b3b80d8

I hate it when bugpoint is all ready to give me a bytecode file, then crashes
in final cleanups.  Then you had to run the whole mess again with
-disable-final-cleanups.

This makes bugpoint run the cleanups in a protected environment so that if
they crash, bugpoint itself doesn't crash.  This makes things much happier,
implements a FIXME, and gets rid of YABPO (yet another bugpoint option).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9743 91177308-0d34-0410-b5e6-96231b3b80d8

Split the DAE pass into DAE and DAH passes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9742 91177308-0d34-0410-b5e6-96231b3b80d8

Split behavior into two pieces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9741 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify the performFinalCleanups interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9740 91177308-0d34-0410-b5e6-96231b3b80d8

Yet more fixes for constant expr shifts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9739 91177308-0d34-0410-b5e6-96231b3b80d8

Further fixes for PR93

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9738 91177308-0d34-0410-b5e6-96231b3b80d8

A few handy methods that seem to mesh well with what CallSite already provides.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9737 91177308-0d34-0410-b5e6-96231b3b80d8

no need for endl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9736 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for constant expr shifts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9735 91177308-0d34-0410-b5e6-96231b3b80d8

Since this function returns an int, let's actually return something.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9734 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9733 91177308-0d34-0410-b5e6-96231b3b80d8

If we're not checking, don't check!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9732 91177308-0d34-0410-b5e6-96231b3b80d8

Fix flawed logic that was breaking several SPEC benchmarks, including gzip and crafty.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9731 91177308-0d34-0410-b5e6-96231b3b80d8

We know exactly what the value of $< is, so instead of using `basename $<` to
get just the filename and not the full path, just use the filename directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9730 91177308-0d34-0410-b5e6-96231b3b80d8

Output only the .y filename, not the full path to it for ease of reading.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9729 91177308-0d34-0410-b5e6-96231b3b80d8

Add three more bugs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9728 91177308-0d34-0410-b5e6-96231b3b80d8

Do not use a class before it is defined.
Be gcc 3.4 clean

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9727 91177308-0d34-0410-b5e6-96231b3b80d8

Be friendly to gcc 3.4... good compiler.  Nice compiler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9726 91177308-0d34-0410-b5e6-96231b3b80d8

Be gcc 3.4 clean

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9725 91177308-0d34-0410-b5e6-96231b3b80d8

Make -r work, fixing PR 91

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9724 91177308-0d34-0410-b5e6-96231b3b80d8

Add std::pair tier. This is a much simplified version of boost::tie
that works only for std::pair.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9723 91177308-0d34-0410-b5e6-96231b3b80d8

Fix name collision

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9722 91177308-0d34-0410-b5e6-96231b3b80d8

Add a dtor to ensure that they are called the right number of times.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9721 91177308-0d34-0410-b5e6-96231b3b80d8

NEw testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9720 91177308-0d34-0410-b5e6-96231b3b80d8

Make code gcc 3.4 clean

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9719 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9718 91177308-0d34-0410-b5e6-96231b3b80d8

This works with GCC 3.4 also

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9717 91177308-0d34-0410-b5e6-96231b3b80d8

Abort when the user program calls abort, instead of printing a funny message and calling exit(1).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9716 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug with previous implementation:
-      // ~(c-X) == X-(c-1) == X+(-c+1)
+      // ~(c-X) == X-c-1 == X+(-c-1)

Implement: C - ~X == X + (1+C)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9715 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for the other side

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9714 91177308-0d34-0410-b5e6-96231b3b80d8

Use regular old malloc to emulate malloc/alloca instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9713 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a comment which no longer applies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9712 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cleanup, plus implement InstCombine/xor.ll:test17

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9711 91177308-0d34-0410-b5e6-96231b3b80d8

Since we're in the neighborhood, test for the inverse

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9710 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spello
Add negate overload

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9709 91177308-0d34-0410-b5e6-96231b3b80d8

Implement InstCombine/xor.ll:test(15|16)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9708 91177308-0d34-0410-b5e6-96231b3b80d8

Add a generalization of the previous case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9707 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for masking operation that frequently occurs in the pool allocator
for converting a number that is a power of two into a mask

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9706 91177308-0d34-0410-b5e6-96231b3b80d8

Update documentation since it was misleading: make it clear that a
negative instruction count is returned if instructions are removed
from a basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9705 91177308-0d34-0410-b5e6-96231b3b80d8

Change all machine basic block modifier functions in MRegisterInfo to
return the number of instructions added to/removed from the basic block
passed as their first argument.

Note: This is only needed because we use a std::vector instead of an
ilist to keep MachineBasicBlock instructions. Inserting an instruction
to a MachineBasicBlock invalidates all iterators to the basic
block. The return value can be used to update an index to the machine
basic block instruction vector and circumvent the iterator elimination
problem but this is really not needed if we move to a better
representation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9704 91177308-0d34-0410-b5e6-96231b3b80d8

Update verifySavedState()'s comment, so that it reflects its current
status.  In doFinalization(), skip over external functions, just like
Anand's mapping info does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9703 91177308-0d34-0410-b5e6-96231b3b80d8

New file, for use by the pool allocator project

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9702 91177308-0d34-0410-b5e6-96231b3b80d8

Substantial release notes updates

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9700 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for PR80

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9699 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9698 91177308-0d34-0410-b5e6-96231b3b80d8

Add comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9697 91177308-0d34-0410-b5e6-96231b3b80d8

While working on the pool allocator, I noticed that basicaa is failing a scary
number of simple cases.  Someday when I get a chance to work on it again, this
testcase should be corrected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9695 91177308-0d34-0410-b5e6-96231b3b80d8

Fix problems in previous changes.  This fixes several regressions last night.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9694 91177308-0d34-0410-b5e6-96231b3b80d8

Checking in Chris's suggestions:
Added assert() to ensure symbol table is well formed.
Added code to remember the value that was found; resolving types can change
the symbol table and invalidate the value of the iterator.
Added comments to the ResolveTypes() function (mainly for my own benefit).
Please feel free to correct the comments if they are not accurate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9693 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for PR84

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9690 91177308-0d34-0410-b5e6-96231b3b80d8

Modified build rules so that a messages appears before and after linking.
This helps to disambiguate when linking begins and when the library/program
is linked and ready to be used.
This is sort of as preference thing, so feel free to modify/revert the change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9687 91177308-0d34-0410-b5e6-96231b3b80d8

Significantly simplify constant emission by unifying the stuff which used to build up
strings with the stuff that used to print to an ostream directly.  We now NEVER build
up big strings, only to print them once they are formed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9686 91177308-0d34-0410-b5e6-96231b3b80d8

updates to release notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9685 91177308-0d34-0410-b5e6-96231b3b80d8

Incorporate printSingleConstantValue into its single caller

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9684 91177308-0d34-0410-b5e6-96231b3b80d8

* Reformat some code
* Emit bools as 1/0 instead of true/false, fixing compilation of eon and
  PR 83 & Jello/2003-11-03-GlobalBool.llx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9683 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9682 91177308-0d34-0410-b5e6-96231b3b80d8

Fix InstCombine/2003-11-03-VarargsCallBug.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9681 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for a bug in instcombine

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9680 91177308-0d34-0410-b5e6-96231b3b80d8

Work around a bug in GCC where it can't handle common variables marked weak.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9679 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bugs with attribute weak emission

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9678 91177308-0d34-0410-b5e6-96231b3b80d8

If linking a library, do not link other libraries, like libc, into it!
This fixes lots of annoying warnings and error messages

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9677 91177308-0d34-0410-b5e6-96231b3b80d8

Closed the h2 header for the LLVM Test Suite Organization section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9676 91177308-0d34-0410-b5e6-96231b3b80d8

More testcases

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9675 91177308-0d34-0410-b5e6-96231b3b80d8

Move a test from cast-set to a new bit-tracking.ll file.  Update file comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9674 91177308-0d34-0410-b5e6-96231b3b80d8

Implement InstCombine/cast-set.ll:test6[a].  This improves code generated for
a hot function in em3d

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9673 91177308-0d34-0410-b5e6-96231b3b80d8

Add another case, which an implementation of test6 must be sure to handle
correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9672 91177308-0d34-0410-b5e6-96231b3b80d8

This simplifies the CWriter code, makes the generated code easier to read,
and makes the output work with the intel compiler.  Overall, a win.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9671 91177308-0d34-0410-b5e6-96231b3b80d8

Implement InstCombine/cast-set.ll: test1, test2, test7

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9670 91177308-0d34-0410-b5e6-96231b3b80d8

Add the testcase from PR8

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9669 91177308-0d34-0410-b5e6-96231b3b80d8

Add another case, which occurs in em3d

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9668 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug with zero sized casts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9667 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate the silly namedContext member of printType

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9666 91177308-0d34-0410-b5e6-96231b3b80d8

Allow CallSites to be used as the key of a map

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9660 91177308-0d34-0410-b5e6-96231b3b80d8

All DSGraphs keep a reference to the targetdata they are created with.  This is
used to eliminate the hard coded, hacked in, sparc specific, global TargetData.
Changing the TargetData used to actually match the code fixes problems, and
eliminates a crash.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9659 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: test/Regression/Analysis/DSGraph/2003-11-02-NodeCollapsing.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9658 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for DSA which is improperly collapsed!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9657 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug in previous checkin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9656 91177308-0d34-0410-b5e6-96231b3b80d8

The 'thefunc' function should not have weak linkage, it should have linkonce linkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9655 91177308-0d34-0410-b5e6-96231b3b80d8

Implement transmogriphication of allocation instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9654 91177308-0d34-0410-b5e6-96231b3b80d8

Add test for instcombine transmogrifying allocation instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9653 91177308-0d34-0410-b5e6-96231b3b80d8

Add note about profile.sh

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9652 91177308-0d34-0410-b5e6-96231b3b80d8

Add -help option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9651 91177308-0d34-0410-b5e6-96231b3b80d8

Bugz fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9650 91177308-0d34-0410-b5e6-96231b3b80d8

Checkin an initial version of the llvm-prof documentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9649 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR78

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9648 91177308-0d34-0410-b5e6-96231b3b80d8

The "correct" fix for CBackend/2003-10-23-UnusedType.ll is to not even try
to emit types which are not used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9647 91177308-0d34-0410-b5e6-96231b3b80d8

Including the symbol table in the FindUsedTypes analysis was the WRONG way
to fix test/Regression/CBackend/2003-10-23-UnusedType.ll.  This completely
neutered the deadtypeelim pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9646 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for PR79

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9645 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase, for PR 81

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9644 91177308-0d34-0410-b5e6-96231b3b80d8

Regression test for PR 80

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9643 91177308-0d34-0410-b5e6-96231b3b80d8

Escape "'s, which are frequent visitors to C++ types

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9642 91177308-0d34-0410-b5e6-96231b3b80d8

Strip off CPR's manually, because if we don't, the inliner doesn't delete dead
functions.  GRR

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9641 91177308-0d34-0410-b5e6-96231b3b80d8

Make the call graph more precise despite the hated constantpointerrefs.

Do you detect the animosity I feel towards CPRs yet?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9640 91177308-0d34-0410-b5e6-96231b3b80d8

Did I mention that I _HATE_ CPRs?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9639 91177308-0d34-0410-b5e6-96231b3b80d8

Use stylesheets as much as we can. I admit, I still cannot make CSS do what I
can do with tables, which annoys me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9638 91177308-0d34-0410-b5e6-96231b3b80d8

Obsolete file goes byebye

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9637 91177308-0d34-0410-b5e6-96231b3b80d8