llvm-svn: 31883

llvm-svn: 31882

llvm-svn: 31881

llvm-svn: 31880

features autodetected.  This fixes PR1010 and Regression/CodeGen/X86/xmm-r64.ll
on non-x86-64 hosts.

llvm-svn: 31879

llvm-svn: 31878

llvm-svn: 31877

instruction.  Doing so breaks the FP stackifier, the alpha branch selector
the sparc fpmover.

This fixes PR1012 and CodeGen/X86/fp-stack-compare.ll

llvm-svn: 31876

llvm-svn: 31875

llvm-svn: 31874

llvm-svn: 31871

llvm-svn: 31870

llvm-svn: 31869

First in a series of patches to convert SetCondInst into ICmpInst and
FCmpInst using only two opcodes and having the instructions contain their
predicate value. Nothing uses these classes yet. More patches to follow.

llvm-svn: 31867

Retain the signedness of the old integer types in a new TypeInfo structure
so that it can be used in the grammar to implement auto-upgrade of things
that depended on signedness of types. This doesn't implement any new
functionality in the AsmParser, its just plumbing for future changes.

llvm-svn: 31866

llvm-svn: 31865

simplified before we do this xform so that our cost model is accurate.

llvm-svn: 31864

llvm-svn: 31861

llvm-svn: 31860

Documentation preview of the upcoming icmp and fcmp instructions that
will replace the various setcc instructions.

llvm-svn: 31859

llvm-svn: 31858

llvm-svn: 31857

This speeds up yacr2 by 7% on a core2.

llvm-svn: 31856

  if (cond) goto BB2
BB1:
    ...
    return;
BB2:
   ...

Move BB1 to the end of the function so that the code falls through in the
non-return case.  This has the effect of moving assert (and other no-return
call) bodies and return blocks out of loops.

llvm-svn: 31855

only do these transformations if there are a small number of phi's.
This speeds up Ptrdist/ks from 2.35s to 2.19s on my mac pro.

llvm-svn: 31853

llvm-svn: 31852

llvm-svn: 31851

the correct options, places the patch content in order that makes sense for
review, and filters cruft out of the patch (like diffs in *.cvs files). It
produces both a NAME.patch.raw (unfiltered) and NAME.patch (filtered) file.

llvm-svn: 31850

llvm-svn: 31849

llvm-svn: 31848

list

llvm-svn: 31847

llvm-svn: 31846

llvm-svn: 31845

llvm-svn: 31844

llvm-svn: 31842

llvm-svn: 31841

Also, valist should create a pointer RC reg class value, not a GPRC value.

llvm-svn: 31840

llvm-svn: 31839

llvm-svn: 31838

The algorithm it used before wasn't 100% correct, we now use an iterative
expansion model.  This fixes assembler errors when compiling 403.gcc with
tail merging enabled.

Change the way the branch selector works overall: Now, the isel generates
PPC::BCC instructions (as it used to) directly, and these BCC instructions
are emitted to the output or jitted directly if branches don't need
expansion.  Only if branches need expansion are instructions rewritten
and created.  This should make branch select faster, and eliminates the
Bxx instructions from the .td file.

llvm-svn: 31837