llvm-svn: 29860

utility of the LoopUnroll pass.

Also, add a testcase for multiblock-loop unrolling.

llvm-svn: 29859

Adjust implementation to match the new interface after exception handling
was removed in the Unix verison. NOTE: this hasn't been compiled yet!

llvm-svn: 29858

implement a movcond instruction

llvm-svn: 29857

llvm-svn: 29856

llvm-svn: 29854

does emit linkable .o files in very simple cases.

llvm-svn: 29850

This library no longer throws nor handles exceptions, so turn off the
REQUIRES_EH flag.

llvm-svn: 29849

Final remove of exception handling from this file. lib/System can no longer
throw exceptions so there's no need for try/catch blocks here.

llvm-svn: 29848

handles exceptions.

llvm-svn: 29847

Final removal of exceptions from lib/System and adjustment of users to
accommodate.

llvm-svn: 29846

Eliminate exception throwing from Path::renamePathOnDisk and adjust its
users correspondingly.

llvm-svn: 29843

portion fo the program name via sys::Path().getLast(). This makes error
messages more readable since this is invariably used only in error
messages.  Instead of:
  /path/to/llvm/bin/directory/toolname: error message
we will now get:
  toolname: error message
Also, since we always have a program name (even if its defaulted), don't
check to see if it is set or not when generating error messages. This
eliminates a bunch of constant strings, saving a little under 1K of data.

llvm-svn: 29842

Remove exception throwing from Path::getDirectoryContents and its users.

llvm-svn: 29841

Remove exceptions from the Path::create*OnDisk methods. Update their users
to handle error messages via arguments and result codes.

llvm-svn: 29840

Adjust code to compensate for Path class interface change.

llvm-svn: 29837

Change the Path::make*OnDisk methods exception free and adjust their usage.

llvm-svn: 29836

llvm-svn: 29834

adjust users of it to compensate.

llvm-svn: 29831

defines each value# tracked by the interval.  This will be used to improve
coallescing.

llvm-svn: 29830

llvm-svn: 29828

a null pointer when there is an error.

llvm-svn: 29827

just return MinTime if that should ever happen.

llvm-svn: 29826

Adjust the use of MappedFile to its new non-throwing interface. We just
propagate the exceptions if an error occurs. This will get cleaned up
later, incrementally.

llvm-svn: 29820

Make the Bytecode Reader use setjmp/longjump instead of exceptions to handle
errors. The alternative was even uglier than setjmp/longjump as it would
impact the interface and workings of nearly every function in the reader.

llvm-svn: 29819

Adjust to new interface for MappedFile. Note that the new "throw"
statements will be removed later.

llvm-svn: 29818

Adjust users of MappedFile to its new non-throwing interface.  Note that in
most cases the lazy step of just throwing after a call to MappedFile was
installed. This was done in the name of incremental changes. Getting rid of
the new throw statements will take adjustment of interfaces and propagation
of errors to higher levels.  Those changes will come in subsequent patches.

llvm-svn: 29817

Make MappedFile not throw any exceptions.

llvm-svn: 29816

Fix a bug in my last patch that botched file redirection by using explicit
scoping of if statements.

llvm-svn: 29815

llvm-svn: 29814

llvm-svn: 29808

llvm-svn: 29805

*** Register mapping ***
  reg 1024 -> %reg1028
  reg 1026 -> EAX
  reg 1027 -> %reg1028

instead of:

*** Register mapping ***
  reg 1024 -> reg 1028
  reg 1026 -> reg 15
  reg 1027 -> reg 1028

llvm-svn: 29803

llvm-svn: 29802

llvm-svn: 29799

llvm-svn: 29798

llvm-svn: 29796

llvm-svn: 29794

llvm-svn: 29793

    MOV R0, R1
    MOV R1, R0

the second machine instruction is removed. Added a regression test.

llvm-svn: 29792