Update the portability section

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9803 91177308-0d34-0410-b5e6-96231b3b80d8

sjlj bug

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9802 91177308-0d34-0410-b5e6-96231b3b80d8

Fix wierd problems linking C programs which look for symbols in libstdc++.
This was due to the 'assert' macro expanding into a function call on some
platforms which could throw.  The C++ compiler then added checks for the
exception specifications in these functions, which pulled in the C++ runtime.
This was bad, and the assertions can never fire (the library is now debugged)
so just remove them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9801 91177308-0d34-0410-b5e6-96231b3b80d8

Add news from brian

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9800 91177308-0d34-0410-b5e6-96231b3b80d8

First pass at cleaning up LangRef.html: stylesheet-ification, consistent
formatting, more strict adherence to HTML 4.01, other misc. cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9799 91177308-0d34-0410-b5e6-96231b3b80d8

For some reason, LICM and GCSE like to crash the FunctionPassManager when they
are being added as FunctionPasses... Sigh.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9798 91177308-0d34-0410-b5e6-96231b3b80d8

Provide a specialization of _Alloc_traits, which allows the G++ runtime to avoid
storing an instance of the allocator in each data structure it uses.  Yaay.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9795 91177308-0d34-0410-b5e6-96231b3b80d8

Implement vaarg instruction. This is not quite perfect: 2003-08-11-VaListArg
still causes a crash. But it's better than before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9794 91177308-0d34-0410-b5e6-96231b3b80d8

Implement branching to a PC-relative constant (not a BasicBlock).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9793 91177308-0d34-0410-b5e6-96231b3b80d8

popStackAndReturnValueToCaller() must advance instruction pointer to normal
destination, if returning from an invoke.

Implement 'unwind' instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9792 91177308-0d34-0410-b5e6-96231b3b80d8

PreSelection is not optional, it performs a necessary and vital transformation
for the Sparc backend: breaking up constant expressions. Thus, we cannot have it
guarded by a conditional, it should never be disabled.

Also, it's now available for the JIT since it is a FunctionPass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9791 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the *BIG UGLY HACK* from the JIT: PreSelection is now a FunctionPass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9790 91177308-0d34-0410-b5e6-96231b3b80d8

Add stub version of unwind support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9789 91177308-0d34-0410-b5e6-96231b3b80d8

visitCallInst --> visitCallSite.
Use visitCallSite to implement both CallInsts and InvokeInsts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9788 91177308-0d34-0410-b5e6-96231b3b80d8

Make the operation of visitCallInst() only depend on the CallSite.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9787 91177308-0d34-0410-b5e6-96231b3b80d8

Completely hacked apart the file and put it back together using stylesheets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9786 91177308-0d34-0410-b5e6-96231b3b80d8

Actually have a target "#introduction" if we're making a link to it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9785 91177308-0d34-0410-b5e6-96231b3b80d8

Use CallSites for call sites, instead of CallInsts. A revolutionary concept.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9784 91177308-0d34-0410-b5e6-96231b3b80d8

Mention class CallSite

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9783 91177308-0d34-0410-b5e6-96231b3b80d8

Add a warning about not "new"ing or "delete"ing CallSites

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9782 91177308-0d34-0410-b5e6-96231b3b80d8

Added ability to register FunctionPasses as optimizations, with
TargetMachine-accepting constructors (thanks to Chris).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9781 91177308-0d34-0410-b5e6-96231b3b80d8

Make the page footer consistent with the rest of the site.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9779 91177308-0d34-0410-b5e6-96231b3b80d8

Switch to emitting MachineConstantPool the way it was meant to be done.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9777 91177308-0d34-0410-b5e6-96231b3b80d8

Switch to using the standard representation of the constant pool -- namely, the
MachineConstantPool. This involved refactoring the two classes involved in
printing out Sparc assembly. In fact, they should share all this code anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9776 91177308-0d34-0410-b5e6-96231b3b80d8

We accept TargetMachine as a const reference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9775 91177308-0d34-0410-b5e6-96231b3b80d8

PreSelection and PeepholeOpts are now FunctionPasses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9774 91177308-0d34-0410-b5e6-96231b3b80d8

* Stop making a global for each constant that cannot live in an instruction;
  it will be converted to a MachineConstantPool index during instruction
  selection
* This is now eligible to become a FunctionPass since it does not have any side
  effects outside of the function it is processing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9773 91177308-0d34-0410-b5e6-96231b3b80d8

* Use the MachineConstantPool for storing constants instead of a hash_set;
* Do not create new globals for constants!

Also, order #includes as per coding style guide

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9772 91177308-0d34-0410-b5e6-96231b3b80d8

Use `basename $<` to get just the filename, not full path, for ease of reading.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9770 91177308-0d34-0410-b5e6-96231b3b80d8

Declare FunctionPasses as such so that they can be used in FunctionPassManager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9768 91177308-0d34-0410-b5e6-96231b3b80d8

Declare FunctionPasses as such.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9767 91177308-0d34-0410-b5e6-96231b3b80d8

Add some ctors for this allocator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9766 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor the return-from-function code into popStackAndReturnValueToCaller().
Make external function calls slightly less special; now they get a stack frame.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9765 91177308-0d34-0410-b5e6-96231b3b80d8

Add bugz

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9764 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a really bad build problem for users who have .o in their build directory!
Thanks to Reid Spencer for figuring this out!  :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9763 91177308-0d34-0410-b5e6-96231b3b80d8

Hopefully this will fix PR98

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9762 91177308-0d34-0410-b5e6-96231b3b80d8

Hopefully fix the objdir != srcdir issue

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9761 91177308-0d34-0410-b5e6-96231b3b80d8

* Added a "contents"-like list of questions at the beginning of the file
* Use stylsheets. Really, people, work with me here.
* Stop using those silly <dl> and <dt> and whatever else tags
* Close tags

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9760 91177308-0d34-0410-b5e6-96231b3b80d8

fix warnings on sparc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9759 91177308-0d34-0410-b5e6-96231b3b80d8

Fix warnings building on sparc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9758 91177308-0d34-0410-b5e6-96231b3b80d8

All 'llvmgcc' tests should specify %llvmgcc so that the path is passed
in by qmtest.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9757 91177308-0d34-0410-b5e6-96231b3b80d8

No wonder noone can set up LLVMGCCDIR correctly!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9756 91177308-0d34-0410-b5e6-96231b3b80d8

Add new commandline option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9755 91177308-0d34-0410-b5e6-96231b3b80d8

Add new command line option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9754 91177308-0d34-0410-b5e6-96231b3b80d8

Various cleanups and efficiency improvements

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9753 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: PR93

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9752 91177308-0d34-0410-b5e6-96231b3b80d8

* Make the comment header 80 columns long
* Alphabetize #includes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9751 91177308-0d34-0410-b5e6-96231b3b80d8

Let's not forget about our friends -- Constant Pool indices.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9750 91177308-0d34-0410-b5e6-96231b3b80d8

Give this header file an Emacs mode-line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9749 91177308-0d34-0410-b5e6-96231b3b80d8

Do not assume the first file is a bytecode file. Instead, construct a dummy
Module and link things into that.

Also, fix a typo in an error message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9748 91177308-0d34-0410-b5e6-96231b3b80d8

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