llvm-svn: 77906

Allow imp-def and imp-use of anything in the scavenger asserts, just like the machine code verifier.
Allow redefinition of a sub-register of a live register.

llvm-svn: 77904

llvm-svn: 77903

This is just the framework to identify the needed workarounds. They are not actually implemented.

llvm-svn: 77902

We use the same constraints as GCC, including those that are slightly insane for inline assembler.

llvm-svn: 77899

Note that configure was edited by hand. Will somebody with the correct version of autoconf please regenerate?

llvm-svn: 77898

Generate code for the Blackfin family of DSPs from Analog Devices:

  http://www.analog.com/en/embedded-processing-dsp/blackfin/processors/index.html
  
We aim to be compatible with the exsisting GNU toolchain found at:

  http://blackfin.uclinux.org/gf/project/toolchain
  
The back-end is experimental.

llvm-svn: 77897

support. This isn't immediately interesting, because Legalize
ends up lowering SELECT_CC if the target doesn't support it,
but this simplifies the process.

Also, if the SELECT_CC would be expanded in Legalize, it
can potentially end up with two copies of the condition
expression. By leaving it as SELECT+SETCC, the SELECT can be
expanded into two SELECTs that use a single SETCC.

The two comparisons are usually CSE'd, but depending on
when various expressions get legalized, the comparison
expression could involve calls to library functions, such
that the comparison expression may not be able to be CSE'd.
This will be needed by a future patch.

llvm-svn: 77896

llvm-svn: 77895

llvm-svn: 77894

llvm-svn: 77893

llvm-svn: 77892

Use of an <undef> register is treated like an <imp-use>. It is not an error to use a dead <undef> register.

llvm-svn: 77890

TLOF, unifying all the dwarf targets at the same time.

llvm-svn: 77889

llvm-svn: 77888

object files.

llvm-svn: 77887

llvm-svn: 77878

the only real caller (GetFunctionSizeInBytes) uses it.

The custom ARM implementation of this is basically reimplementing
an assembler poorly for negligible gain.  It should be removed 
IMNSHO, but I'll leave that to ARMish folks to decide.

llvm-svn: 77877

in a header.

llvm-svn: 77874

llvm-svn: 77873

llvm-svn: 77872

llvm-svn: 77871

llvm-svn: 77869

llvm-svn: 77868

llvm-svn: 77867

defaults to being ELF.

llvm-svn: 77866

solaris :)

llvm-svn: 77865

llvm-svn: 77864

no longer depends on TM!

llvm-svn: 77863

llvm-svn: 77861

llvm-svn: 77859

llvm-svn: 77858

be self contained, and it isn't used from TM.h

llvm-svn: 77857

even considering #if 0 code.

llvm-svn: 77856

behavior of the LSDA section instead of on some random target hook that
needs to be kept in synch with other points of truth.

llvm-svn: 77855

llvm-svn: 77852

getLSDASection() to be more specific.  This makes it pretty obvious
that the ELF LSDA section is being specified wrong in PIC mode.  We're
probably getting a lot of startup-time relocations to a readonly page,
which is expensive and bad.

Someone who cares about ELF C++ should investigate this.

llvm-svn: 77847

llvm-svn: 77846

llvm-svn: 77845

variables either.

llvm-svn: 77844