Avoid divide by zero errors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6738 91177308-0d34-0410-b5e6-96231b3b80d8

Fix misspelling of ExtraSources, hopefully to unbreak the nightly tester
Remove evil rcs tag :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6737 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: Assembler/2003-06-17-InvokeDisassemble.llx

"yes, invoke instructions can have just three arguments"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6736 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6735 91177308-0d34-0410-b5e6-96231b3b80d8

Fairly major change: emit fixed sized allocas in the entry block as a variable,
instead of a variable pointer and an alloca.  All accesses to the variable then
use the address-of operator to access it.  This plays better with the internal
GCC code generation phases, which bail early on functions which contain allocas.
It also makes the code a bit easier to read.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6734 91177308-0d34-0410-b5e6-96231b3b80d8

Don't corrupt memory when removing an instruction from the program, but
not the worklist

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6733 91177308-0d34-0410-b5e6-96231b3b80d8

Regularize the names of #include-guards.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6732 91177308-0d34-0410-b5e6-96231b3b80d8

Just _EXTEND_ the current path.  Don't replace it.  Replacing it makes it
impossible for scripts to find user tools like sed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6731 91177308-0d34-0410-b5e6-96231b3b80d8

Arg, sparc doesn't have correct things in math.h!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6729 91177308-0d34-0410-b5e6-96231b3b80d8

Don't include alloca.h on FreeBSD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6728 91177308-0d34-0410-b5e6-96231b3b80d8

Actually, change it to use explicit new/delete, which is more likely to be
optimized INTO an alloca

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6727 91177308-0d34-0410-b5e6-96231b3b80d8

Remove usage of alloca

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6726 91177308-0d34-0410-b5e6-96231b3b80d8

Remove two using decls
Remove usage of alloca

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6725 91177308-0d34-0410-b5e6-96231b3b80d8

Basically this is the same as Makefile.Linux, at least for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6724 91177308-0d34-0410-b5e6-96231b3b80d8

Isolate machine-dependent use of <alloca.h> in "Support/Alloca.h",
so that we can easily change its use to be conditional on the result of
an autoconf test later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6723 91177308-0d34-0410-b5e6-96231b3b80d8

Whoops. I didn't mean to step on John's changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6722 91177308-0d34-0410-b5e6-96231b3b80d8

This version supports FreeBSD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6721 91177308-0d34-0410-b5e6-96231b3b80d8

Reconfigured the TOOLS variable so that it points to the current set of tools
built by the LLVM build.
Added a path for use with the TestRunner.sh script so that it can always find
the LLVM tools without having the user place them in his or her path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6720 91177308-0d34-0410-b5e6-96231b3b80d8

Modified the environment variables that determine where things are located to
do the following:
1) Determine their default values without $HOME
2) Configure the default values as full absolute pathnames.
This should help fix the nightly test builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6719 91177308-0d34-0410-b5e6-96231b3b80d8

Rename FInfo.cpp to FunctionInfo.cpp, eliminate FInfo.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6712 91177308-0d34-0410-b5e6-96231b3b80d8

move contents of include/llvm/Reoptimizer/Mapping/FInfo.h into here, it is sparc internal

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6711 91177308-0d34-0410-b5e6-96231b3b80d8

Minor tweak to make testcase less simple

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6710 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase identified by joel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6709 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase identified by joel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6708 91177308-0d34-0410-b5e6-96231b3b80d8

Fix final linking errors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6707 91177308-0d34-0410-b5e6-96231b3b80d8

Fix link errors by adding main's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6706 91177308-0d34-0410-b5e6-96231b3b80d8

Fix link problem

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6705 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typeo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6704 91177308-0d34-0410-b5e6-96231b3b80d8

Add prototype for the new DAE pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6703 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: Linker/2003-06-02-TypeResolveProblem2.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6699 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: ADCE/2003-06-11-InvalidCFG.ll
This was because we were deleting large chunks of functions without an exit block, because the post-dominance
information was not useful.  This broke crafty and twolf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6698 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: CBackend/2003-06-11-HexConstant.ll
Fix bug: CBackend/2003-06-11-LiteralStringProblem.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6697 91177308-0d34-0410-b5e6-96231b3b80d8

Nodes get forwarded when they are collapsed currently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6696 91177308-0d34-0410-b5e6-96231b3b80d8

Remove bogus assertion: a node with no referrers could be collapsed if field-sensitivity was disabled

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6695 91177308-0d34-0410-b5e6-96231b3b80d8

Implement forwarding from stores to loads of must-aliased pointers.
This implements: GCSE/2003-06-13-LoadStoreEliminate.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6694 91177308-0d34-0410-b5e6-96231b3b80d8

New testcases for bugs and the new DAE pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6693 91177308-0d34-0410-b5e6-96231b3b80d8

Fix invalid number of arguments problem

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6692 91177308-0d34-0410-b5e6-96231b3b80d8

Fix testcase to work with store forwarding

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6689 91177308-0d34-0410-b5e6-96231b3b80d8

Fix major bug in my last checkin.  :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6688 91177308-0d34-0410-b5e6-96231b3b80d8

Reverted back to hand-made HTML.
Added in updates for new Makefile variables and corrected some punctuation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6687 91177308-0d34-0410-b5e6-96231b3b80d8

Remove obsolete comments about llvm-ar

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6686 91177308-0d34-0410-b5e6-96231b3b80d8

Updated the documentation to reflect changes in the Makefiles for building
projects.
Fixed some small grammatical errors.
Using Netscape Composer seems to have added stuff that makes the page look
exactly the same.  Bah!  Curse my laziness!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6685 91177308-0d34-0410-b5e6-96231b3b80d8

Changed the LITTLE_ENDIAN and BIG_ENDIAN macros to ENDIAN_LITTLE and ENDIAN_BIG.
This will prevent them from conflicting with macros defined by the system
header files.
When autoconf comes, this will look a lot nicer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6684 91177308-0d34-0410-b5e6-96231b3b80d8

Added assert.h so that it compiles under newer versions of GCC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6683 91177308-0d34-0410-b5e6-96231b3b80d8

Included assert.h so that the code compiles under newer versions of GCC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6682 91177308-0d34-0410-b5e6-96231b3b80d8

Updated to the new Makefile.common.
Modified the test rule so that it can be added to the regular test rule
(I believe the term is double dependency?).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6681 91177308-0d34-0410-b5e6-96231b3b80d8

Updated to use the new Makefile.common.
Replaced the hard-coded compiler variable with the one defined by
Makefile.config.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6680 91177308-0d34-0410-b5e6-96231b3b80d8

Modified Makefile.common to handle compilation of projects inside and outside
of the llvm source directory.
The main modification was to add new environment variables: one set for llvm
entities and another set for source entities current being compiled.
This should make the Makefile more flexible and easier to understand as each
environment variable only does one thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6679 91177308-0d34-0410-b5e6-96231b3b80d8

Updated for the new projects Makefile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6678 91177308-0d34-0410-b5e6-96231b3b80d8

add some comments
add a function ModuloScheduling::dumpFinalSchedule() to print out final schedule

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6677 91177308-0d34-0410-b5e6-96231b3b80d8

add an brief instruction what this pass is

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6676 91177308-0d34-0410-b5e6-96231b3b80d8

a simple introduction to this pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6675 91177308-0d34-0410-b5e6-96231b3b80d8

cleaned code
add some comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6674 91177308-0d34-0410-b5e6-96231b3b80d8

delete useless functions
add comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6673 91177308-0d34-0410-b5e6-96231b3b80d8

 change DEBUG  to DEBUG_PRINT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6672 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug in environment setting

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6671 91177308-0d34-0410-b5e6-96231b3b80d8

Add #include for older GCC's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6670 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: LevelRaise/2003-06-07-EmptyArrayTest.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6669 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6668 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compilation problem on GCC 2.9x

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6667 91177308-0d34-0410-b5e6-96231b3b80d8

Do not hastily change the Opcode from 'r' to 'i' type if we're not actually
SETTING the operand to be an immediate or have verified that one of the operands
is really a SignExtended or Unextended immediate value already, which warrants
an 'i' opcode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6662 91177308-0d34-0410-b5e6-96231b3b80d8

Old versions of GCC doesn't have <ostream> :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6661 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compilation problem with some versions of G++

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6660 91177308-0d34-0410-b5e6-96231b3b80d8

Fix problem with perror

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6659 91177308-0d34-0410-b5e6-96231b3b80d8

Fix warnings on Sparc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6658 91177308-0d34-0410-b5e6-96231b3b80d8

Print address out as hex.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6657 91177308-0d34-0410-b5e6-96231b3b80d8

Added 'r' and 'i' versions to WRCCR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6656 91177308-0d34-0410-b5e6-96231b3b80d8

* Changed Bcc instructions to behave like BPcc instructions
* BPA and BPN do not take a %cc register as a parameter
* SLL/SRL/SRA{r,i}5 are there for a reason - they are ONLY 32-bit instructions
* Likewise, SLL/SRL/SRAX{r,i}6 are only 64-bit
* Added WRCCR{r,i} opcodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6655 91177308-0d34-0410-b5e6-96231b3b80d8

Return 'int 0' instead of 'void' so that the test can be seen as successful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6654 91177308-0d34-0410-b5e6-96231b3b80d8

Return 'int 0' instead of void so that the test can be considered to pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6653 91177308-0d34-0410-b5e6-96231b3b80d8

* Removed PreSelection pass because that is now done in the JIT
* Removed instruction scheduling as it is too slow to run in a JIT environment
* Removed other passes because they aren't necessary and can slow JIT down

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6652 91177308-0d34-0410-b5e6-96231b3b80d8

Don't output explicit initializers for globals that are zero initialized

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6651 91177308-0d34-0410-b5e6-96231b3b80d8

::: HACK ALERT ::: HACK ALERT ::: HACK ALERT ::: HACK ALERT ::: HACK ALERT :::

The JIT is designed to code-generate a function at-a-time. That means that any
pass can only make local changes to its function. Period.

Because the Sparc PreSelection pass claims to be a BasicBlock pass while adding
globals to the Module, it cannot be run with the other passes, because by this
time, the globals have been output already by the JIT, and the addresses of any
globals appearing AFTER this point are not recognized.

However, the PreSelection pass is a requirement for correctness in the Sparc
codegen path, so it MUST be run.

::: HACK ALERT ::: HACK ALERT ::: HACK ALERT ::: HACK ALERT ::: HACK ALERT :::

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6650 91177308-0d34-0410-b5e6-96231b3b80d8

Output function address as hex.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6649 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify test case: remove declaration of __main() and call to it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6648 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a bunch of test cases in test/Regression/Jello which could not get the
address of a floating-point (allocated via ConstantPool) correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6647 91177308-0d34-0410-b5e6-96231b3b80d8

Add statistic for # machine instrs emitted
Add GROSS HACK to get CompilationCallback to work when compiled in release mode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6646 91177308-0d34-0410-b5e6-96231b3b80d8

* If a global is not a function, just ask the MachineCodeEmitter for the addr
* Do not block a print statement with a DEBUG() guard if we're going to abort()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6645 91177308-0d34-0410-b5e6-96231b3b80d8

The SUB*i instructions belong to a different class than their SUB*r brethren.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6644 91177308-0d34-0410-b5e6-96231b3b80d8

All debug print statements are now output with the DEBUG() guard to make
output clean so that tests can automatically diff the output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6643 91177308-0d34-0410-b5e6-96231b3b80d8

Put all debug print statements under the DEBUG() guard to make output clean so
that tests can automatically diff the output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6642 91177308-0d34-0410-b5e6-96231b3b80d8

Removed debug print statement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6641 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed confusion between register classes and register types.
Now %fcc registers are recognized correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6640 91177308-0d34-0410-b5e6-96231b3b80d8

Added missing directive to store the instruction name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6639 91177308-0d34-0410-b5e6-96231b3b80d8

Moved predict and annul fields to the end of each individual instruction
class, because they are currently unused.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6638 91177308-0d34-0410-b5e6-96231b3b80d8

Do not preset the cc register, the instructions actually use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6637 91177308-0d34-0410-b5e6-96231b3b80d8

* Stop ignoring cc registers, since we actually use them in branches.
* Added comment as to why we are still ignoring predict and annul bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6636 91177308-0d34-0410-b5e6-96231b3b80d8

Minor tuning -- avoid a non-inlinable function call on every operand.
Also, reorder a couple of functions for inlining.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6635 91177308-0d34-0410-b5e6-96231b3b80d8

Fix (bogus) possibly uninitialized warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6634 91177308-0d34-0410-b5e6-96231b3b80d8

Added lazy function resolution to the JIT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6633 91177308-0d34-0410-b5e6-96231b3b80d8

* The textual output of (non-)predicted FP branches is the same.
* Stop mapping FBcc instructions to deprecated opcodes, map to FBPcc instead.
* Fixed opf in FCMPxy instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6632 91177308-0d34-0410-b5e6-96231b3b80d8

Remove duplicate pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6631 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: InstCombine/2003-06-05-BranchInvertInfLoop.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6630 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6629 91177308-0d34-0410-b5e6-96231b3b80d8

Test seteq AND setne

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6628 91177308-0d34-0410-b5e6-96231b3b80d8

Implement generation of cmp R, C to not use an extra register

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6627 91177308-0d34-0410-b5e6-96231b3b80d8

Special case simple binary operator X op C

  This avoid generating a register to hold C, which in turn speeds up the
  register allocator by a lot: ~9% on 164.gzip and ~17% on 256.bzip2.  This
  also speeds up other passes.  This also speeds up execution of the program
  marginally, and makes the asm much easier to read. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6626 91177308-0d34-0410-b5e6-96231b3b80d8

Add instructions for (add|sub|and|or|xor)ri(8|16|32)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6625 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: Jello/2003-06-04-bzip2-bug.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6624 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase, the JIT currently handles this right, I just don't want to
reintroduce a bug that didn't have a testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6623 91177308-0d34-0410-b5e6-96231b3b80d8