Mips ISelLowering cleanup : Removed old LowerCALL and FORMAL_ARGS helpers, they
aren't used anyway, they also used to broke compiling when fastcc was specified for a
function, but not anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54316 91177308-0d34-0410-b5e6-96231b3b80d8

Handle i32->f32 bitconvert results.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54315 91177308-0d34-0410-b5e6-96231b3b80d8

Add atomic sub for other sizes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54314 91177308-0d34-0410-b5e6-96231b3b80d8

Emit saveri with the correct operand order, patch by Richard Pennington!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54313 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR2615

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54312 91177308-0d34-0410-b5e6-96231b3b80d8

Improved asm inline for hi,lo results
Added hi,lo registers to be used,def implicitly. This provides better handle of
instructions which use hi/lo.
Fixes a small BranchAnalysis bug

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54274 91177308-0d34-0410-b5e6-96231b3b80d8

Apply the same pattern used in 'and' lowering for 'or'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54273 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54266 91177308-0d34-0410-b5e6-96231b3b80d8

Removed unused parameters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54262 91177308-0d34-0410-b5e6-96231b3b80d8

Make sse2 explicit, for non-x86 hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54251 91177308-0d34-0410-b5e6-96231b3b80d8

Expand fcopysign

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54250 91177308-0d34-0410-b5e6-96231b3b80d8

Handle more SELECT corner cases considering legalize types, probabily wont work with
the default legalizer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54249 91177308-0d34-0410-b5e6-96231b3b80d8

Add a flag to disable jump table generation (all
switches use the binary search algorithm) for
environments that don't support it.  PPC64 JIT
is such an environment; turn the flag on for that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54248 91177308-0d34-0410-b5e6-96231b3b80d8

Improve dagcombining for sext-loads and sext-in-reg nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54239 91177308-0d34-0410-b5e6-96231b3b80d8

Added pattern for floating point zero immediate (avoiding a constant pool
access).
Added pattern to match bitconvert node.
Fixed MTC1 asm string bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54229 91177308-0d34-0410-b5e6-96231b3b80d8

Move SelectionDAG::viewGraph() out of line; as an inline function
it isn't always visible to gdb.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54228 91177308-0d34-0410-b5e6-96231b3b80d8

Don't look for leaf values to store when lowering stores of
empty structs. This fixes PR2612.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54226 91177308-0d34-0410-b5e6-96231b3b80d8

Use existing LiveInterval methods to simplify live interval merging.  Thanks to Evan for pointing these out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54225 91177308-0d34-0410-b5e6-96231b3b80d8

I missed this file in r54223. movzbl is now used instead
of movzbw here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54224 91177308-0d34-0410-b5e6-96231b3b80d8

Reapply r54147 with a constraint to only use the 8-bit
subreg form on x86-64, to avoid the problem with x86-32
having GPRs that don't have 8-bit subregs.

Also, change several 16-bit instructions to use
equivalent 32-bit instructions. These have a smaller
encoding and avoid partial-register updates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54223 91177308-0d34-0410-b5e6-96231b3b80d8

Value numbers whose def index is a special sentinel value should not be remapped.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54218 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed bug in global address lowering for functions and in Brcond lowering

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54215 91177308-0d34-0410-b5e6-96231b3b80d8

Removed small section flag for mips, the assembler doesnt support this flag

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54214 91177308-0d34-0410-b5e6-96231b3b80d8

Added new features to represent specific instructions groups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54213 91177308-0d34-0410-b5e6-96231b3b80d8

Instruction definition cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54212 91177308-0d34-0410-b5e6-96231b3b80d8

Document BasicBlock::Create.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54210 91177308-0d34-0410-b5e6-96231b3b80d8

Not that using stream headers other than iostream is allowed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54209 91177308-0d34-0410-b5e6-96231b3b80d8

Added support for overloading intrinsics (atomics) based on pointers
to different address spaces.  This alters the naming scheme for those
intrinsics, e.g., atomic.load.add.i32 => atomic.load.add.i32.p0i32

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54195 91177308-0d34-0410-b5e6-96231b3b80d8

Another SCEV issue from PR2607; essentially the same issue, but this
time applying to the implicit comparison in smin expressions. The
correct way to transform an inequality into the opposite
inequality, either signed or unsigned, is with a not expression.

I looked through the SCEV code, and I don't think there are any more
occurrences of this issue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54194 91177308-0d34-0410-b5e6-96231b3b80d8

More fixes for corner cases when remapping live range indices.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54186 91177308-0d34-0410-b5e6-96231b3b80d8

When merging live intervals, we also need to merge in any live ranges that are inputs to two-address instructions
that themselves define a range we already care about.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54185 91177308-0d34-0410-b5e6-96231b3b80d8

Fix for PR2607: SCEV miscomputing the loop count for loops with an
SGT exit condition.  Essentially, the correct way to flip an inequality
in 2's complement is the not operator, not the negation operator.
That said, the difference only affects cases involving INT_MIN.

Also, enhance the pre-test search logic to be a bit smarter about
inequalities flipped with a not operator, so it can eliminate the smax
from the iteration count for simple loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54184 91177308-0d34-0410-b5e6-96231b3b80d8

When merging a PHI operand's live interval into the PHI's live interval, we need to merge over all liveranges in
the operand's interval that share the relevant value number, not just the range that immediately precedes the PHI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54174 91177308-0d34-0410-b5e6-96231b3b80d8

Don't decrement the BB remap when we don't need to.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54173 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR2609.  If a label is deleted, then it needs
to be marked invalid regardless of whether it is
a debug, an exception handling or (hopefully) a
GC label.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54172 91177308-0d34-0410-b5e6-96231b3b80d8

Changed some methods order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54169 91177308-0d34-0410-b5e6-96231b3b80d8

Fix broken CellSPU lowering, re-instate braces in Legalize

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54168 91177308-0d34-0410-b5e6-96231b3b80d8

Added floating point lowering for select.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54167 91177308-0d34-0410-b5e6-96231b3b80d8

Set the executable bit - means it can actually
be run when installing on sparc sun.  Set the
mime type to text/x-sh while there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54165 91177308-0d34-0410-b5e6-96231b3b80d8

Disable a fix in the previous patch, since it breaks CellSPU.
The CellSPU codegen is broken, but needs to be fixed before we can
put this back in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54164 91177308-0d34-0410-b5e6-96231b3b80d8

Add vector shifts to the IR, patch by Eli Friedman.
CodeGen & Clang work coming next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54161 91177308-0d34-0410-b5e6-96231b3b80d8

Add -unroll-allow-partial command line option that enabled the loop unroller to
partially unroll a loop when fully unrolling would not fit under the threshold.

Patch by Mikael Lepistö.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54160 91177308-0d34-0410-b5e6-96231b3b80d8

Restructure ArgumentPromotion a bit. Instead of just having a single boolean
that says "unconditional loads from this argument are safe", we now keep track
of the safety per set of indices from which loads happen. This prevents
ArgPromotion from promoting loads that aren't really valid. As an added effect,
this will now disregard the the type of the indices passed to a GEP, so
"load GEP %A, i32 1" and "load GEP %A, i64 1" will result in a single argument,
not two.

This fixes PR2598, for which a testcase has been added as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54159 91177308-0d34-0410-b5e6-96231b3b80d8

Improve bugpoint output a bit by outputting the actual instructions instead of
just it's name, which is often empty. Also remove a newline from the output
that wasn't really needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54158 91177308-0d34-0410-b5e6-96231b3b80d8

Add a GetElementPtrInst::getIndexedType that accepts uint64_t's instead of just Value*'s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54157 91177308-0d34-0410-b5e6-96231b3b80d8

Fix for PR2578. Do not split off a block whose size is less than FreeRangeHeader::getMinBlockSize(). Patch by Damien.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54152 91177308-0d34-0410-b5e6-96231b3b80d8

Revert 54147.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54148 91177308-0d34-0410-b5e6-96231b3b80d8

Add x86 isel patterns to match what would be a ZERO_EXTEND_INREG operation,
which is represented in codegen as an 'and' operation. This matches them
with movz instructions, instead of leaving them to be matched by and
instructions with an immediate field.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54147 91177308-0d34-0410-b5e6-96231b3b80d8

Fold the useful features of alist and alist_node into ilist, and
a new ilist_node class, and remove them. Unlike alist_node,
ilist_node doesn't attempt to manage storage itself, so it avoids
the associated problems, including being opaque in gdb.

Adjust the Recycler class so that it doesn't depend on alist_node.
Also, change it to use explicit Size and Align parameters, allowing
it to work when the largest-sized node doesn't have the greatest
alignment requirement.

Change MachineInstr's MachineMemOperand list from a pool-backed
alist to a std::list for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54146 91177308-0d34-0410-b5e6-96231b3b80d8

Don't remove volatile loads.  Thanks to Duncan for noticing this one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54144 91177308-0d34-0410-b5e6-96231b3b80d8

Remove extra lines

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54143 91177308-0d34-0410-b5e6-96231b3b80d8

Disable gp_rel relocation for constant pools access for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54142 91177308-0d34-0410-b5e6-96231b3b80d8

Since build_vector is a variadic node, the number
of operands should be -1 not 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54141 91177308-0d34-0410-b5e6-96231b3b80d8

This is not a binary file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54140 91177308-0d34-0410-b5e6-96231b3b80d8

Added floating point lowering for setcc and brcond.
Fixed COMM asm directive usage.
ConstantPool using custom FourByteConstantSection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54139 91177308-0d34-0410-b5e6-96231b3b80d8

Test this differently: I saw this test fail
because opt exited while llvm-as was still
writing to the pipe, causing it to get a
SIGPIPE.  It seems best to change things to
avoid the race altogether.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54138 91177308-0d34-0410-b5e6-96231b3b80d8

Don't build with 4.0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54137 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54136 91177308-0d34-0410-b5e6-96231b3b80d8

Reword a comment to be less ambiguous.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54135 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bashism in TestRunner.sh.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54134 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for eliminating stores that store the same value that was just loaded.
This fixes PR2599.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54133 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a subtle bug when removing instructions from memdep.  In very specific
circumstances we could end up remapping a dependee to the same instruction
that we're trying to remove.  Handle this properly by just falling back to
a conservative solution.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54132 91177308-0d34-0410-b5e6-96231b3b80d8

Remove <iostream> include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54131 91177308-0d34-0410-b5e6-96231b3b80d8

Don't use reinterpret_cast when it isn't needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54130 91177308-0d34-0410-b5e6-96231b3b80d8

Make the ScheduleDAG's GraphRoot edge be blue and dashed too, like
the SelectionDAG's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54129 91177308-0d34-0410-b5e6-96231b3b80d8

Rename SDOperand to SDValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54128 91177308-0d34-0410-b5e6-96231b3b80d8

Tidy SDNode::use_iterator, and complete the transition to have it
parallel its analogue, Value::value_use_iterator. The operator* method
now returns the user, rather than the use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54127 91177308-0d34-0410-b5e6-96231b3b80d8

Fix embedded CRLF characters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54125 91177308-0d34-0410-b5e6-96231b3b80d8

Rename isOnlyUseOf to isOnlyUserOf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54124 91177308-0d34-0410-b5e6-96231b3b80d8

Improve comments for SDNode use-count methods. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54123 91177308-0d34-0410-b5e6-96231b3b80d8

Some binary operations were being treated as
unary operations!  Add support for softening
some additional unary operations like fp_to_sint.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54122 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the issues originally addressed in r54070.  After thinking about it some more, I realized that the right thing to do
is to have StrongPHIElimination use its knowledge of the PHIs before they're erased to update the intervals appropriate.  This is
both simpler and more accurate than the alternative, which was having LIA figure it out when it renumbered things, plus it's just
the right thing to do!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54077 91177308-0d34-0410-b5e6-96231b3b80d8

Revert my previous patch.  In retrospect, this is completely the wrong way to fix this problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54072 91177308-0d34-0410-b5e6-96231b3b80d8

Special cases are needed in renumbering when dealing with renumbering after a PHI has been removed.  The interval previously defined
by the PHI needs to be extended to the beginning of its basic block, and the intervals that were inputs need to be trimmed to the end
of their basic blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54070 91177308-0d34-0410-b5e6-96231b3b80d8

In order to avoid reprocessing a register more than once, we need to add it
to the handled set so it will get filtered out in future iterations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54065 91177308-0d34-0410-b5e6-96231b3b80d8

Remove live interval entries for an interval if we're eliminating its only VN.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54062 91177308-0d34-0410-b5e6-96231b3b80d8

Properly remap live ranges whose end indices are the end of the function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54061 91177308-0d34-0410-b5e6-96231b3b80d8

Rename the version of CreateRet that's a convenience method for creating
multiple-valued return values, so that the name CreateRet is just for
creating plain ret statements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54053 91177308-0d34-0410-b5e6-96231b3b80d8

Make the remapping of interval indices (particularly ending indices) more robust.
This is tricky business, and will probably take a few more iterations to get
the last kinks out of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54043 91177308-0d34-0410-b5e6-96231b3b80d8

Fix error: ‘std::ostream’ has not been declared
when compiling with gcc 4.3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54041 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test RUN line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54040 91177308-0d34-0410-b5e6-96231b3b80d8

Disable mov{L, LP, HP, HLP, *DUP} shuffles for mmx
mmx needs its own fancy shuffle logic based on unpack; for now we get correct but awful code.

Also commit Mon Ping's VSETCC patch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54039 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unnecessary implicit argument

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54031 91177308-0d34-0410-b5e6-96231b3b80d8

Fix minor issues with VICmp/VFCmp constant expressions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54030 91177308-0d34-0410-b5e6-96231b3b80d8

Fit in 80 cols

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54029 91177308-0d34-0410-b5e6-96231b3b80d8

Allow verifier to be run on partially materialized modules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54028 91177308-0d34-0410-b5e6-96231b3b80d8

Add predicate for GhostLinkage, used by the JIT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54027 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead PatLeaf; there are a number of issues around MMX movl that need to be fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54026 91177308-0d34-0410-b5e6-96231b3b80d8

Tab removal

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54025 91177308-0d34-0410-b5e6-96231b3b80d8

Add a #include for the uses of uint64_t.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54016 91177308-0d34-0410-b5e6-96231b3b80d8

This test needs -aggressive-remat enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54015 91177308-0d34-0410-b5e6-96231b3b80d8

Disable the new aggressive remat logic introduced in 54000; it causes some
regressions, such as PR2595. Also, there is a significant code-quality
issue in SPEC 464.h264ref and a few others.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54014 91177308-0d34-0410-b5e6-96231b3b80d8

When splitting a vector shuffle, fixed which type we used for the hi part

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54007 91177308-0d34-0410-b5e6-96231b3b80d8

Teach ARM isLegalAddressingMode to handle unknown type without crashing. This fixes pr2589.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54004 91177308-0d34-0410-b5e6-96231b3b80d8

Add a #include <cassert>, since this file use assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54003 91177308-0d34-0410-b5e6-96231b3b80d8

Apply a patch from Mahadevan R, with minor formatting changes, to
workaround a GCC 3.3 bug observed on OpenBSD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54002 91177308-0d34-0410-b5e6-96231b3b80d8

Use AliasAnalysis::pointsToConstantMemory in SDISel to avoid unnecessary
dependencies with constant load nodes. This allows them to be scheduled
freely.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54001 91177308-0d34-0410-b5e6-96231b3b80d8

Enable rematerialization of constants using AliasAnalysis::pointsToConstantMemory,
and knowledge of PseudoSourceValues. This unfortunately isn't sufficient to allow
constants to be rematerialized in PIC mode -- the extra indirection is a
complication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54000 91177308-0d34-0410-b5e6-96231b3b80d8

Put the LICM of constant GlobalVariables, introduced in r53945, under a
command-line option, and disable it by default. It introduced performance
regressions because CodeGen is currently not able to remat such loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53997 91177308-0d34-0410-b5e6-96231b3b80d8

Add target triples so these tests behave as expected on non-darwin hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53991 91177308-0d34-0410-b5e6-96231b3b80d8