of opcode and number of operands.

llvm-svn: 31947

llvm-svn: 31943

llvm-svn: 31941

can result in a bool. Previously PtrToInt, FPToUI and FPToSI were missing
this operation.

llvm-svn: 31938

llvm-svn: 31936

form a load from i1 from larger loads that may not be zext'd.

llvm-svn: 31933

expanded into BR_CC.

llvm-svn: 31932

The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931

llvm-svn: 31927

llvm-svn: 31925

llvm-svn: 31924

llvm-svn: 31923

llvm-svn: 31922

llvm-svn: 31920

llvm-svn: 31908

llvm-svn: 31902

Remove predicate simplifier from default gcc3 pipeline. New design is too
slow to enable by default.
Add new testcases for problems encountered in development.

llvm-svn: 31895

llvm-svn: 31889

llvm-svn: 31887

llvm-svn: 31884

llvm-svn: 31883

llvm-svn: 31882

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

llvm-svn: 31879

llvm-svn: 31878

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: 31874

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

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

llvm-svn: 31864

llvm-svn: 31861

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: 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

issues to the ground.

llvm-svn: 31836