llvm-svn: 60969

llvm-svn: 60968

llvm-svn: 60965

use of illegal integer types: instead, use a stack slot
and copying via integer registers.  The existing code
is still used if the bitconvert is to a legal integer
type.

This fires on the PPC testcases 2007-09-08-unaligned.ll
and vec_misaligned.ll.  It looks like equivalent code
is generated with these changes, just permuted, but
it's hard to tell.

With these changes, nothing in LegalizeDAG produces
illegal integer types anymore.  This is a prerequisite
for removing the LegalizeDAG type legalization code.

While there I noticed that the existing code doesn't
handle trunc store of f64 to f32: it turns this into
an i64 store, which represents a 4 byte stack smash.
I added a FIXME about this.  Hopefully someone more
motivated than I am will take care of it.

llvm-svn: 60964

  which are identical to the original patterns.

- Change the multiply with overflow so that we distinguish between signed and
  unsigned multiplication. Currently, unsigned multiplication with overflow
  isn't working!

llvm-svn: 60963

llvm-svn: 60959

Fix add/sub expansion: don't create ADD / SUB with two results (seems like everyone is doing this these days :-). Patch by Daniel M Gessel!

llvm-svn: 60958

llvm-svn: 60951

do an extending load of the 4 bytes rather than a
potentially illegal (type) i32 load followed by a
sign extend.

llvm-svn: 60945

lowering f64 function arguments.

llvm-svn: 60944

llvm-svn: 60919

llvm-svn: 60918

Added support for TRUNC v8i16 to v8i8 for X86 (MMX)

llvm-svn: 60916

ISD::ADD to emit an implicit EFLAGS. This was horribly broken. Instead, replace
the intrinsic with an ISD::SADDO node. Then custom lower that into an
X86ISD::ADD node with a associated SETCC that checks the correct condition code
(overflow or carry). Then that gets lowered into the correct X86::ADDOvf
instruction.

Similar for SUB and MUL instructions.

llvm-svn: 60915

llvm-svn: 60912

llvm-svn: 60910

llvm-svn: 60909

llvm-svn: 60902

llvm-svn: 60901

* Whitespace cleanups

llvm-svn: 60891

* <sup> cannot appear inside a <pre> - replaced <pre> with <tt> and <br>
* Added standard "Notes" section
* Sprinkled fixed-width <tt> tags in a few places for consistency

llvm-svn: 60889

tags are not needed in HTML, only XML.

llvm-svn: 60885

llvm-svn: 60884

optimization of SGE/SLE with unit stride, now that it works properly.

llvm-svn: 60881

llvm-svn: 60880

  - descriptions on new line
  - no terminating period
* Changed the W3C logos from yellow to blue to not stand out

llvm-svn: 60879

llvm-svn: 60875

This stuff is not used outside Base.td, and with the conversion of the
compilation graph to string-based format became much less (if at all)
useful.

llvm-svn: 60873

llvm-svn: 60872

Prevents conflicts between plugins.

llvm-svn: 60871

llvm-svn: 60869

llvm-svn: 60867

llvm-svn: 60866

vec_extract-sse4.ll.

llvm-svn: 60865

llvm-svn: 60861

llvm-svn: 60859

them. The DAG combiner expects that nodes that are transformed have one value
result.

llvm-svn: 60857

llvm-svn: 60851

llvm-svn: 60850

Only perform SETO/SETC to JO/JC conversion if extractvalue is coming from an arithmetic with overflow instruction.

llvm-svn: 60844