Document 'inreg' & 'sret'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33600 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33599 91177308-0d34-0410-b5e6-96231b3b80d8

Drop CSRET CC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33598 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate changes from my local tree. This patch includes:
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33597 91177308-0d34-0410-b5e6-96231b3b80d8

This file has been dead for a long time. Remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33596 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33595 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1137:
When a value is found to have the same name as another, try harder to
disambiguate when its a type plane collapse issue and when it isn't. We
traverse the type to see if it contains an integer. If it does not then
we issue the error because it can't be resulting from integer type planes
collapsing. Otherwise we just rename it, even if that's a bit of overkill.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33594 91177308-0d34-0410-b5e6-96231b3b80d8

Test case for PR1137. This makes sure that we don't get erroneous
"redefinition" errors that cause the upgrade to fail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33593 91177308-0d34-0410-b5e6-96231b3b80d8

provide a definition for uintptr_t

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33592 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test/Transforms/InstCombine/2007-01-27-AndICmp.ll, a miscompilation of
Mozilla that Anton tracked down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33591 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for an instcombine miscompilation reduced by Anton.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33590 91177308-0d34-0410-b5e6-96231b3b80d8

Use -f option so test is repeatable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33589 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case for PR411.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33588 91177308-0d34-0410-b5e6-96231b3b80d8

Make this really do nothing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33587 91177308-0d34-0410-b5e6-96231b3b80d8

Describe the recent changes to the bytecode format for PR761.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33586 91177308-0d34-0410-b5e6-96231b3b80d8

Make d'tor out-of-line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33585 91177308-0d34-0410-b5e6-96231b3b80d8

Make SmallSet<whatever*, N> faster by transparently implementing it with
SmallPtrSet.  Some clients will need to use SmallPtrSet directly though if
they need to iterate over the set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33584 91177308-0d34-0410-b5e6-96231b3b80d8

add some missing API

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33583 91177308-0d34-0410-b5e6-96231b3b80d8

Give SmallSet a reasonable fallback if it gets large: use an std::set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33582 91177308-0d34-0410-b5e6-96231b3b80d8

implement SmallPtrSet::erase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33581 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a limitation of SmallPtrSet.  Before it would assert if the smallsize
was not a power of two.  Now it rounds up to the next power of two internally.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33580 91177308-0d34-0410-b5e6-96231b3b80d8

add some comments on the algorithm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33579 91177308-0d34-0410-b5e6-96231b3b80d8

add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33578 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new SmallSet ADT specialized for pointers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33577 91177308-0d34-0410-b5e6-96231b3b80d8

Add some comments, fix an 80 cols violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33576 91177308-0d34-0410-b5e6-96231b3b80d8

Return an X86ELFWriterInfo object.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33574 91177308-0d34-0410-b5e6-96231b3b80d8

Use TargetELFWriterInfo class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33573 91177308-0d34-0410-b5e6-96231b3b80d8

Accessor for the TargetELFWriterInfo class object.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33572 91177308-0d34-0410-b5e6-96231b3b80d8

X86 implementation of the TargetELFWriterInfo class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33571 91177308-0d34-0410-b5e6-96231b3b80d8

The TargetELFWriterInfo class holds target-specific information for the ELF writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33570 91177308-0d34-0410-b5e6-96231b3b80d8

New entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33569 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb jumptable support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33568 91177308-0d34-0410-b5e6-96231b3b80d8

simplify insert interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33567 91177308-0d34-0410-b5e6-96231b3b80d8

clean up comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33566 91177308-0d34-0410-b5e6-96231b3b80d8

add an explanatory comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33565 91177308-0d34-0410-b5e6-96231b3b80d8

Apparently the last commit is wrong. Reverted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33564 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a double negative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33563 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb add / sub with carry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33562 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33561 91177308-0d34-0410-b5e6-96231b3b80d8

Merge tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33560 91177308-0d34-0410-b5e6-96231b3b80d8

Some asm directives fixes for ELF.
Now we can compile llvm-gcc on arm-linux-gnueabi!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33558 91177308-0d34-0410-b5e6-96231b3b80d8

Make the constant honest.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33557 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a spelling error

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33556 91177308-0d34-0410-b5e6-96231b3b80d8

Handle multiple functions, properly mangle symbols, and fix support for
scattered relocations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33555 91177308-0d34-0410-b5e6-96231b3b80d8

fit in 80 cols

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33553 91177308-0d34-0410-b5e6-96231b3b80d8

rename files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33552 91177308-0d34-0410-b5e6-96231b3b80d8

Represent tADDspi and tSUBspi as two-address instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33551 91177308-0d34-0410-b5e6-96231b3b80d8

Change the MachineDebugInfo to MachineModuleInfo to better reflect usage
for debugging and exception handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33550 91177308-0d34-0410-b5e6-96231b3b80d8

Fix Data16bitsDirective for ELF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33549 91177308-0d34-0410-b5e6-96231b3b80d8

Conditional branch being fixed up is not the last MI in the BB, there is a
unconditional branch following it. Simply invert the condition and swap
destinations if the conditional branch can reach the destination of the
unconditional branch:
beq L1
b   L2
=>
bne L2
b   L1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33548 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33547 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure that an upgraded index is also inserted into the VIndices
otherwise it gets ignored.

This fixes test/CodeGen/X86/2006-05-11-InstrSched.ll

Thanks to Evan Cheng for noticing this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33546 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33545 91177308-0d34-0410-b5e6-96231b3b80d8

Ensure that gep_upgrade zext instructions we insert have unique names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33544 91177308-0d34-0410-b5e6-96231b3b80d8

If the constant pool value is a extern weak symbol, emit the weak reference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33543 91177308-0d34-0410-b5e6-96231b3b80d8

extload -> zextload

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33542 91177308-0d34-0410-b5e6-96231b3b80d8

Remove extraneous ; to make some versions of bison happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33541 91177308-0d34-0410-b5e6-96231b3b80d8

Order createSimplifyLibCallsPass() after a set of function level passes
so that these function passes are managed by CallGraphPassManager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33540 91177308-0d34-0410-b5e6-96231b3b80d8

Files missing from LABEL check in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33539 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the SignedType class and other dead code. Improve comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33538 91177308-0d34-0410-b5e6-96231b3b80d8

Make LABEL a builtin opcode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33537 91177308-0d34-0410-b5e6-96231b3b80d8

Clarify some constants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33536 91177308-0d34-0410-b5e6-96231b3b80d8

Work around broken binutils on alpha

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33535 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1122:
Test the upgradability of nested type definitions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33534 91177308-0d34-0410-b5e6-96231b3b80d8

For PR761:
Remove "target endian/pointersize" or add "target datalayout" to make
the test parse properly or set the datalayout because defaults changes.

For PR645:
Make global names use the @ prefix.

For llvm-upgrade changes:
Fix test cases or completely remove use of llvm-upgrade for test cases
that cannot survive the new renaming or upgrade capabilities.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33533 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33532 91177308-0d34-0410-b5e6-96231b3b80d8

For All These Bugs:
PR645
PR761
PR1082
PR1122

Completely rewrite llvm-upgrade. This should be its final design. Any future
changes will use this same design.  The changes involve the following:

1. Make this work very much like the 1.9 AsmParser
2. Retain old upgrades dating back to release 1.2 time frame.
3. Merge in some of the upgrades between 1.9 and 2.0 (e.g. icmp/fcmp).
4. Attach a Signedness value (Signless, Unsigned, Signed) to every type,
   Value, Constant, Instruction, and list of those things in the Parser.
   Use these to make signedness decisions for instruction upgrades.
5. Implement unique name upgrade for function values and global values.
6. Identify rename cases that might cause problems and warn about them.
   For example: renaming a global variable with external linkage.
7. Generate a 2.0 IR using VMCore. This is necessary for numerous
   reasons and has the advantage that it never goes out of date.
8. Use the AsmPrinter to make the output nice.
9. Clean up error and warning messages from 1.9 form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33531 91177308-0d34-0410-b5e6-96231b3b80d8

For PR761:
The Module::setEndianness and Module::setPointerSize methods have been
removed. Instead you can get/set the DataLayout. Adjust thise accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33530 91177308-0d34-0410-b5e6-96231b3b80d8

For PR761:
Remove the Endianness and PointerSize fields from the ModuleHeader and
replace it with the DataLayout field.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33529 91177308-0d34-0410-b5e6-96231b3b80d8

For PR761:
BCReader no longer has a header that contains the endinanness and
pointer size. It's been replaced by datalayout field.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33528 91177308-0d34-0410-b5e6-96231b3b80d8

For PR761:
Remove the setEndianess and setPointerSize methods. These are now
handled via the setDataLayout method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33527 91177308-0d34-0410-b5e6-96231b3b80d8

For PR761:
Remove the setEndiannes and setPointerSize methods. These are now set
through the setDataLayout method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33526 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate for PR645 and PR761

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33525 91177308-0d34-0410-b5e6-96231b3b80d8

For PR645:
Implement separation of local and global symbols. Local symbols and types
now use % prefix. Global variables and functions now use @ prefix.

For PR761:
Replace:
  target endian =
  target pointersize =
With:
  target datalayout =

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33524 91177308-0d34-0410-b5e6-96231b3b80d8

For PR645:
Implement new syntax for local and global symbols. Types and local
symbols use the % prefix. Global variables and functions use the @ prefix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33523 91177308-0d34-0410-b5e6-96231b3b80d8

For PR645:
Remove the Function::renameLocalSymbols function as it is no longer
needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33522 91177308-0d34-0410-b5e6-96231b3b80d8

IntegerType is a sized DerivedType too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33521 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up comments and assert messages that still refer to the old type names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33520 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an assertion message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33519 91177308-0d34-0410-b5e6-96231b3b80d8

SplitBlockBeforeInstr() insert a unconditional branch to the next BB. This
is unnecessary when we are fixing up a conditional branch since we will be
adding a unconditional branch to the destination of the original branch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33517 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead code.
CallGraphSCCPass does not need to implement runOnModule().
It supports runOnSCC().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33516 91177308-0d34-0410-b5e6-96231b3b80d8

Need to scan the function for branches even if there aren't any constants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33515 91177308-0d34-0410-b5e6-96231b3b80d8

Inherit CallGraphSCCPass directly from Pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33514 91177308-0d34-0410-b5e6-96231b3b80d8

Inherit FunctionPass directly from Pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33513 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot to update this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33512 91177308-0d34-0410-b5e6-96231b3b80d8

Inherit BasicBlockPass directly from Pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33511 91177308-0d34-0410-b5e6-96231b3b80d8

Add comment, fix typo, reduce memory usage, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33510 91177308-0d34-0410-b5e6-96231b3b80d8

I am an idiot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33509 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33508 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33507 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33506 91177308-0d34-0410-b5e6-96231b3b80d8

- Tell PEI that PPC will handle stack frame rounding itself.
- Do not round up to max. alignment of stack object if it is > stack alignment.
  It will have to be handled with dynamic aligning code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33505 91177308-0d34-0410-b5e6-96231b3b80d8

Added a MRegisterInfo hook that tells PEI the target is responsible for
rounding the stack frame to a multiple of stack alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33504 91177308-0d34-0410-b5e6-96231b3b80d8

fix fcopysign test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33503 91177308-0d34-0410-b5e6-96231b3b80d8

Fix elf object definition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33502 91177308-0d34-0410-b5e6-96231b3b80d8

Doh. Skip JT branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33501 91177308-0d34-0410-b5e6-96231b3b80d8

Make llvm-extract preserve the callingconv of prototypes in the extracted
code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33500 91177308-0d34-0410-b5e6-96231b3b80d8

1. Remove dwarf-verbose option (now asm-verbose.)
2. Clean up end of lines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33499 91177308-0d34-0410-b5e6-96231b3b80d8

Migrate print routines to asm to be shared by exception handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33498 91177308-0d34-0410-b5e6-96231b3b80d8

Added (preliminary) branch shortening capability to constantpool island pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33497 91177308-0d34-0410-b5e6-96231b3b80d8