is the wrong hammer for this nail, and is probably right.

llvm-svn: 122661

aggressively.  In practice, this doesn't help anything though,
see the todo.

llvm-svn: 122660

should be correct now.

llvm-svn: 122659

llvm-svn: 122658

even compile, let alone work.

llvm-svn: 122657

using a separate objects directory.

llvm-svn: 122656

not locally.

llvm-svn: 122655

numbering, in which it considers (for example) "%a = add i32 %x, %y" and
"%b = add i32 %x, %y" to be equal because the operands are equal and the
result of the instructions only depends on the values of the operands.
This has almost no effect (it removes 4 instructions from gcc-as-one-file),
and perhaps slows down compilation: I measured a 0.4% slowdown on the large
gcc-as-one-file testcase, but it wasn't statistically significant.

llvm-svn: 122654

llvm-svn: 122653

llvm-svn: 122652

llvm-svn: 122651

llvm-svn: 122650

is necessary for executing the custom command that runs the
assember. Fixes PR8877.

llvm-svn: 122649

options. If we are building with exceptions/rtti disabled, we replace
/EHsc with /EHs-c- and /GR with /GR-, respectively. If we just add the
disabling options we get warnings like this:

cl : Command line warning D9025 : overriding '/EHs' with '/EHs-'

llvm-svn: 122648

operands are visited before the instructions themselves.

llvm-svn: 122647

llvm-svn: 122645

llvm-svn: 122642

Fixes PR8861.

llvm-svn: 122641

llvm-svn: 122638

llvm-svn: 122637

llvm-svn: 122636

with 2-address instructions, for about a 3.5% speedup of StrongPHIElimination on
403.gcc.

llvm-svn: 122635

llvm-svn: 122632

llvm-svn: 122631

llvm-svn: 122630

llvm-svn: 122628

process those instructions that define phi sources. This is a 47% speedup of
StrongPHIElimination compile time on 403.gcc.

llvm-svn: 122627

llvm-svn: 122626

llvm-svn: 122625

llvm-svn: 122624

CMake: Add disabling optimization on MSVC8 and MSVC10 as workaround for some files in Target/ARM and Target/X86.

llvm-svn: 122623

autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming.

Cygwin has stdc++.dll in it's distribution, and we can assume distro's stdc++.dll might be available.

llvm-svn: 122622

This would be needed to build pthread*.dll-free distribution on recent MinGW-MSYS distros.

llvm-svn: 122621

llvm-svn: 122620

llvm-svn: 122619

llvm-svn: 122618

llvm-svn: 122617

llvm-svn: 122616

llvm-svn: 122615

like 6 is a fixed point of that and so the previous tests were OK :-)

llvm-svn: 122614