Begin the painful process of tearing apart the rat'ss nest that is Constants.cpp and ConstantFold.cpp.
This involves temporarily hard wiring some parts to use the global context.  This isn't ideal, but it's
the only way I could figure out to make this process vaguely incremental.

llvm-svn: 75445

llvm-svn: 75416

x86_64-apple-darwin10-gcc -c   -g -O2  -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Wold-style-definition -Wmissing-format-attribute   -mdynamic-no-pic -DHAVE_CONFIG_H -I. -I. -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/. -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/../include -I./../intl -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/../libcpp/include  -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmCore.roots/llvmCore~dst/Developer/usr/local/include -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmCore.roots/llvmCore~obj/src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmCore.roots/llvmCore~dst/Developer/usr/local/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DLLVM_VERSION_INFO='"9999"' -DBUILD_LLVM_APPLE_STYLE   /Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/tree-ssa-alias.c -o tree-ssa-alias.o
/var/tmp//ccJQ2JBT.s:4134:Incorrect register `%rcx' used with `l' suffix
make[2]: *** [tree-ssa-live.o] Error 1
make[2]: *** Waiting for unfinished jobs....

llvm-svn: 75412

the div lowering code explicitly references it.

llvm-svn: 75408

of lea.  It is better for code size (and presumably efficiency) to use:

  movl $foo, %eax

rather than:

  leal foo, eax

Both give a nice zero extending "move immediate" instruction, the former is just
smaller.  Note that global addresses should be handled different by the x86
backend, but I chose to follow the style already in place and add more fixme's.

llvm-svn: 75403

llvm-svn: 75402

llvm-svn: 75398

anymore, so these aren't needed.

llvm-svn: 75397

Basically, using:
  lea symbol(%rip), %rax

is not valid in -static mode, because the current RIP may not be
within 32-bits of "symbol" when an app is built partially pic and
partially static.  The fix for this is to compile it to:

  lea symbol, %rax

It would be better to codegen this as:

  movq $symbol, %rax

but that will come next.


The hard part of fixing this bug was fixing abi-isel, which was actively
testing for the wrong behavior.  Also, the RUN lines are completely impossible
to understand what they are testing.  To help with this, convert the -static 
x86-64 codegen tests to use filecheck.  This is much more stable and makes it
more clear what the codegen is expected to be.

llvm-svn: 75382

Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379

llvm-svn: 75361

llvm-svn: 75360

Major changes to Thumb (not Thumb2). Many 16-bit instructions either modifies CPSR  when they are outside the IT blocks, or they can predicated when in Thumb2. Move the implicit def of CPSR to an optional def which defaults CPSR. This allows the 's' bit to be toggled dynamically.

A side-effect of this change is asm printer is now using unified assembly. There are some minor clean ups and fixes as well.

llvm-svn: 75359

llvm-svn: 75358

quad registers and the Q4PR class holds sets of 4 quad registers.

llvm-svn: 75309

never be generated.

llvm-svn: 75305

llvm-svn: 75298

llvm-svn: 75290

llvm-svn: 75278

llvm-svn: 75277

llvm-svn: 75276

llvm-svn: 75275

llvm-svn: 75274

add a couple of predicates to test for "stub style pic in PIC mode" and "stub style pic in dynamic-no-pic" mode.

llvm-svn: 75273

llvm-svn: 75269

llvm-svn: 75266

llvm-svn: 75254

llvm-svn: 75251

llvm-svn: 75250

the cmake build.

llvm-svn: 75246

tomorrow.

llvm-svn: 75245

elimiantes the last use of GVRequiresExtraLoad, so delete it.

llvm-svn: 75244

need for other purposes.

llvm-svn: 75243

done in ClassifyGlobalReference instead of reconstructing the info
awkwardly.

llvm-svn: 75240

PIC-base to be added in.

llvm-svn: 75238

is just a trivial wrapper around "ClassifyGlobalReference", which
stole a ton of logic from LowerGlobalAddress.

llvm-svn: 75237

llvm-svn: 75236

to use isGlobalStubReference instead of GVRequiresExtraLoad
(which should really be part of isel).

llvm-svn: 75234

MachineOperand is a reference to a stub, not a reference to the
global variable itself.  Look no context needed!

llvm-svn: 75233

llvm-svn: 75232