llvm-svn: 19747

llvm-svn: 19746

This fixes the return-address-not-being-saved problem in the Alpha backend.

llvm-svn: 19741

llvm-svn: 19740

llvm-svn: 19739

llvm-svn: 19738

llvm-svn: 19737

llvm-svn: 19736

llvm-svn: 19735

as long as they are the same size.

llvm-svn: 19734

llvm-svn: 19733

llvm-svn: 19732

llvm-svn: 19731

since we are dirty, special case __main.  This should fix the infinite loop
horrible stuff that happens on linux-alpha when configuring llvm-gcc.  It
might also help cygwin, who knows??

llvm-svn: 19729

llvm-svn: 19728

llvm-svn: 19727

operations for 64-bit integers.

llvm-svn: 19724

designed to be put on the stack, that's not cool.  Catch and ignore the
exception.

llvm-svn: 19723

readded when the bug is fixed.

llvm-svn: 19722

llvm-svn: 19721

fixes most of the remaining llc-beta failures.

llvm-svn: 19716

llvm-svn: 19715

llvm-svn: 19714

llvm-svn: 19713

llvm-svn: 19712

llvm-svn: 19711

llvm-svn: 19710

llvm-svn: 19709

llvm-svn: 19708

llvm-svn: 19707

The second folds operations into selects, e.g. (select C, (X+Y), (Y+Z))
-> (Y+(select C, X, Z)

This occurs a few times across spec, e.g.

         select    add/sub
mesa:    83        0
povray:  5         2
gcc      4         2
parser   0         22
perlbmk  13        30
twolf    0         3

llvm-svn: 19706

llvm-svn: 19705

llvm-svn: 19704

llvm-svn: 19703

llvm-svn: 19702

llvm-svn: 19701

independent of each other.

llvm-svn: 19700

llvm-svn: 19699

llvm-svn: 19698

pressure, not decreases register pressure.  Fix problem where we accidentally
swapped the operands of SHLD, which caused fourinarow to fail.  This fixes
fourinarow.

llvm-svn: 19697