llvm-svn: 18845

llvm-svn: 18844

llvm-svn: 18843

in some cases.

llvm-svn: 18842

llvm-svn: 18841

llvm-svn: 18840

llvm-svn: 18839

In particular, implement div.ll:test10 and rem.ll:test4.

llvm-svn: 18838

llvm-svn: 18837

You can't pass the trailing / into Dejagnu, so make the makefile strip it off

llvm-svn: 18836

when compiled with debug information.

llvm-svn: 18835

  .comm _X,0

For X, which makes the linker thing that X is never defined.

llvm-svn: 18834

llvm-svn: 18833

failures from last night.

llvm-svn: 18832

This fixes a crash compiling TimberWolfMC that was exposed due to recent
optimizer changes.

llvm-svn: 18831

llvm-svn: 18830

other sections have subbullets, and it make the TOC look like the whole
document is known problems!

llvm-svn: 18829

llvm-svn: 18826

llvm-svn: 18825

llvm-svn: 18824

Also, fix a bug where ubyte 255 would sometimes be output as -1. This
was afflicting hbd.

llvm-svn: 18823

llvm-svn: 18820

in SPEC, the subsequent optimziations that we are after don't play with
with FP values, so disable this xform for them.  Really we just don't want
stuff like:

double G;   (always 0 or 412312.312)
  = G;

turning into:

bool G_b;
  = G_b ? 412312.312 : 0;

We'd rather just do the load.

-Chris

llvm-svn: 18819

llvm-svn: 18818

down to actually BE a bool.  This allows simple value range propagation
stuff work harder, deleting comparisons in bzip2 in some hot loops.

This implements GlobalOpt/integer-bool.ll, which is the essence of the
loop condition distilled into a testcase.

llvm-svn: 18817

the condition.

llvm-svn: 18816

if the other side is overdefined.

This allows us to fold conditions like:  if (X < Y || Y > Z) in some cases.

llvm-svn: 18807

if the other side is overdefined.

llvm-svn: 18806

llvm-svn: 18805

test in the suite.  :(

llvm-svn: 18804

llvm-svn: 18803

llvm-svn: 18802

llvm-svn: 18801

llvm-svn: 18800

llvm-svn: 18799

llvm-svn: 18798

llvm-svn: 18797

 1. Actually increment the Statistic for the GV elim optzn
 2. When resolving undef branches, only resolve branches in executable blocks,
    avoiding marking a bunch of completely dead blocks live.  This has a big
    impact on the quality of the generated code.

With this patch, we positively rip up vortex, compiling Ut_MoveBytes to a
single memcpy call. In vortex we get this:

     12 ipsccp           - Number of globals found to be constant
    986 ipsccp           - Number of arguments constant propagated
   1378 ipsccp           - Number of basic blocks unreachable
   8919 ipsccp           - Number of instructions removed

llvm-svn: 18796

llvm-svn: 18795

ctor parameters can be defaulted.

Print the transformed llvm code input to the instruction selector
when -print-machineinstrs is on, just like V9.

llvm-svn: 18794