For now, don't split live intervals around x87 stack register barriers. FpGET_ST0_80 must be right after a call instruction (and ADJCALLSTACKUP) so we need to find a way to prevent reload of x87 registers between them.

llvm-svn: 58230

LargeBlockInfo, we can now dramatically simplify their implementation
and speed them up at the same time.  Now the code has time proportional
to the number of uses of the alloca, not the size of the block.

This also eliminates code that tried to batch up different allocas which
are used in the same blocks, and eliminates the 'retry list' logic which
was baroque and no unneccesary.  In addition to being a speedup for crazy
cases, this is also a nice cleanup:

PromoteMemoryToRegister.cpp |  270 +++++++++++++++-----------------------------
 1 file changed, 96 insertions(+), 174 deletions(-)

llvm-svn: 58229

llvm-svn: 58228

a trivial dense map.  Use this in RewriteSingleStoreAlloca to
avoid aggressively rescanning blocks over and over again.  This
fixes PR2925, speeding up mem2reg on the testcase in that bug
from 4.56s to 0.02s in a debug build on my machine.

llvm-svn: 58227

llvm-svn: 58226

150, based on llvm-test measurements.

llvm-svn: 58225

Note that -check-exit-code was on by default while -append-exit-code is not.

llvm-svn: 58221

Thanks to Török Edwin for the awesome reduced testcase.

llvm-svn: 58199

llvm-svn: 58196

Add a default constructor to AsmWriterOperand to make VS2008sp1 happy. (AsmWriterOperand is used in a std::pair, and VS need to generate the default constructor of this pair).

llvm-svn: 58185

Do not shrink wrap live interval in a mbb if it's livein any of its successor blocks. The mbb can be revisited again after all of the successors are processed.

llvm-svn: 58184

llvm-svn: 58183

the build.

llvm-svn: 58179

counterpart of USED_LIBS.

llvm-svn: 58178

config.h

llvm-svn: 58177

triple. Assign to LLVM_HOSTTRIPLE so it figures in config.h.

llvm-svn: 58176

Patch by Frits van Bommel!

llvm-svn: 58175

llvm-svn: 58174

llvm-svn: 58164

actually correspond to what their names suggest.

llvm-svn: 58146

to reflect that.

llvm-svn: 58145

target-independent code to target-specific code. This prevents it
from running on targets that aren't using fast-isel.

In addition to saving compile time, this addresses the problem
that not all targets are prepared for it. In order to use this
pass, all instructions must declare all their fixed uses and
defs of physical registers.

llvm-svn: 58144

llvm-svn: 58143

variable is moved to the execution engine. The JIT calls the TargetJITInfo
to allocate thread local storage. Currently, only linux/x86 knows how to
allocate thread local global variables.

llvm-svn: 58142

llvm-svn: 58141

llvm-svn: 58139

llvm-svn: 58134

llvm-svn: 58133

llvm-svn: 58132

llvm-svn: 58131

llvm-svn: 58130

If val# def is ~0U, meaning it's defined by a PHI, and it's previously split, spill before the barrier because it's impossible to determine if all the defs are spilled in the same spill slot.

llvm-svn: 58129

Prevents some more overzealous deletions (mostly
in AltiVec code).

llvm-svn: 58121

be saved/restored in the prolog/epilog.  We need
to do this iff something in the function stores
into it.

llvm-svn: 58116

llvm-svn: 58113

llvm-svn: 58104

llvm-svn: 58103

llvm-svn: 58102

LHS is a foldable load, then LHS and RHS are swapped
and SetCCOpcode is changed to SETUGT.  But the later
code is expecting operands to be the wrong way round
for SETUGT, but they are not in this case, resulting
in an inverted compare.  The solution is to move the
load normalization before the correction for SETUGT.
This bug was tickled by LegalizeTypes which happened
to legalize the testcase slightly differently to
LegalizeDAG.

llvm-svn: 58092

Modify the cmake build system so that if it doesn't find bison, it will use the pregenerated file in from the svn (.cvs). Work only for windows for the moment. Tested on Vista64 with MSVC2008express.

llvm-svn: 58090