oota-llvm.git
12 years agoMoved input for objdump test from Mips to Inputs.
Jack Carter [Wed, 29 Aug 2012 00:10:48 +0000 (00:10 +0000)]
Moved input for objdump test from Mips to Inputs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162808 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTypo.
Chad Rosier [Tue, 28 Aug 2012 23:57:47 +0000 (23:57 +0000)]
Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162807 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd comments on the literal value used.
Michael Liao [Tue, 28 Aug 2012 23:42:17 +0000 (23:42 +0000)]
Add comments on the literal value used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162805 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoLLI: move instruction cache tweaks.
Jim Grosbach [Tue, 28 Aug 2012 23:22:30 +0000 (23:22 +0000)]
LLI: move instruction cache tweaks.

Invalidate the instruction cache right before we start actually executing code, otherwise
we can miss some that came later. This is still not quite right for a truly lazilly
compiled environment, but it's closer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162803 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoProfile: set branch weight metadata with data generated from profiling.
Manman Ren [Tue, 28 Aug 2012 22:21:25 +0000 (22:21 +0000)]
Profile: set branch weight metadata with data generated from profiling.

This patch implements ProfileDataLoader which loads profile data generated by
-insert-edge-profiling and updates branch weight metadata accordingly.

Patch by Alastair Murray.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162799 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoThe instruction DEXT may be transformed into DEXTU or DEXTM depending
Jack Carter [Tue, 28 Aug 2012 20:07:41 +0000 (20:07 +0000)]
The instruction DEXT may be transformed into DEXTU or DEXTM depending
on the size of the extraction and its position in the 64 bit word.

This patch allows support of the dext transformations with mips64 direct
object output.

0 <= msb < 32 0 <= lsb < 32 0 <= pos < 32 1 <= size <= 32
DINS
The field is entirely contained in the right-most word of the doubleword

32 <= msb < 64 0 <= lsb < 32 0 <= pos < 32 2 <= size <= 64
DINSM
The field straddles the words of the doubleword

32 <= msb < 64 32 <= lsb < 64 32 <= pos < 64 1 <= size <= 32
DINSU
The field is entirely contained in the left-most word of the doubleword

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162782 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSome of the instructions in the Mips instruction set are revision
Jack Carter [Tue, 28 Aug 2012 19:24:49 +0000 (19:24 +0000)]
Some of the instructions in the Mips instruction set are revision
delimited. llvm-mc -disassemble access these through the -mattr
option.

llvm-objdump -disassemble had no such way to set the attribute so
some instructions were just not recognized for disassembly.

This patch accepts llvm-mc mechanism for specifying the attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162781 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoExplicitly update the number of nodes to be traversed
Michael Liao [Tue, 28 Aug 2012 19:20:29 +0000 (19:20 +0000)]
Explicitly update the number of nodes to be traversed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162780 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSome instructions are passed to the assembler to be
Jack Carter [Tue, 28 Aug 2012 19:07:39 +0000 (19:07 +0000)]
Some instructions are passed to the assembler to be
transformed to the final instruction variant. An
example would be dsrll which is transformed into
dsll32 if the shift value is greater than 32.

For direct object output we need to do this transformation
in the codegen. If the instruction was inside branch
delay slot, it was being missed. This patch corrects this
oversight.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162779 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoEmit word of zeroes after the last instruction as a start of the mandatory
Roman Divacky [Tue, 28 Aug 2012 19:06:55 +0000 (19:06 +0000)]
Emit word of zeroes after the last instruction as a start of the mandatory
traceback table on PowerPC64. This helps gdb handle exceptions. The other
mandatory fields are ignored by gdb and harder to implement so just add
there a FIXME.

Patch by Bill Schmidt. PR13641.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162778 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFollow-up patch to r162731.
Akira Hatanaka [Tue, 28 Aug 2012 18:58:57 +0000 (18:58 +0000)]
Follow-up patch to r162731.

Fix a couple of bugs in mips' long branch pass.
This patch was supposed to be committed along with r162731, so I don't have a
new test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162777 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd a MachineOperand::isTied() flag.
Jakob Stoklund Olesen [Tue, 28 Aug 2012 18:34:41 +0000 (18:34 +0000)]
Add a MachineOperand::isTied() flag.

While in SSA form, a MachineInstr can have pairs of tied defs and uses.
The tied operands are used to represent read-modify-write operands that
must be assigned the same physical register.

Previously, tied operand pairs were computed from fixed MCInstrDesc
fields, or by using black magic on inline assembly instructions.

The isTied flag makes it possible to add tied operands to any
instruction while getting rid of (some of) the inlineasm magic.

Tied operands on normal instructions are needed to represent predicated
individual instructions in SSA form. An extra <tied,imp-use> operand is
required to represent the output value when the instruction predicate is
false.

Adding a predicate to:

  %vreg0<def> = ADD %vreg1, %vreg2

Will look like:

  %vreg0<tied,def> = ADD %vreg1, %vreg2, pred:3, %vreg7<tied,imp-use>

The virtual register %vreg7 is the value given to %vreg0 when the
predicate is false. It will be assigned the same physreg as %vreg0.

This commit adds the isTied flag and sets it based on MCInstrDesc when
building an instruction. The flag is not used for anything yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162774 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDon't allow TargetFlags on MO_Register MachineOperands.
Jakob Stoklund Olesen [Tue, 28 Aug 2012 18:05:48 +0000 (18:05 +0000)]
Don't allow TargetFlags on MO_Register MachineOperands.

Register operands are manipulated by a lot of target-independent code,
and it is not always possible to preserve target flags. That means it is
not safe to use target flags on register operands.

None of the targets in the tree are using register operand target flags.
External targets should be using immediate operands to annotate
instructions with operand modifiers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162770 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPatch by Sean Silva to un-barf his computer by explicitly removing the '\n'
Bill Wendling [Tue, 28 Aug 2012 17:18:27 +0000 (17:18 +0000)]
Patch by Sean Silva to un-barf his computer by explicitly removing the '\n'
character instead of always the last character.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162767 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd PPC Freescale e500mc and e5500 subtargets.
Hal Finkel [Tue, 28 Aug 2012 16:12:39 +0000 (16:12 +0000)]
Add PPC Freescale e500mc and e5500 subtargets.

Add subtargets for Freescale e500mc (32-bit) and e5500 (64-bit) to
the PowerPC backend.

Patch by Tobias von Koch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162764 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoInstCombine: Defensively avoid undefined shifts by limiting the amount to the bit...
Benjamin Kramer [Tue, 28 Aug 2012 13:59:23 +0000 (13:59 +0000)]
InstCombine: Defensively avoid undefined shifts by limiting the amount to the bit width.

No test case, undefined shifts get folded early, but can occur when other
transforms generate a constant. Thanks to Duncan for bringing this up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162755 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoInstCombine: Guard the transform introduced in r162743 against large ints and non...
Benjamin Kramer [Tue, 28 Aug 2012 13:08:13 +0000 (13:08 +0000)]
InstCombine: Guard the transform introduced in r162743 against large ints and non-const shifts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162751 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMake sure that we don't call getZExtValue on values > 64 bits.
Nadav Rotem [Tue, 28 Aug 2012 12:23:22 +0000 (12:23 +0000)]
Make sure that we don't call getZExtValue on values > 64 bits.
Thanks Benjamin for noticing this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162749 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTeach InstCombine to canonicalize [SU]div+[AL]shl patterns.
Nadav Rotem [Tue, 28 Aug 2012 10:01:43 +0000 (10:01 +0000)]
Teach InstCombine to canonicalize  [SU]div+[AL]shl patterns.

For example:
  %1 = lshr i32 %x, 2
  %2 = udiv i32 %1, 100

rdar://12182093

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162743 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoThe commutative flag is already correctly set within the multiclass. If we set
Bill Wendling [Tue, 28 Aug 2012 07:36:46 +0000 (07:36 +0000)]
The commutative flag is already correctly set within the multiclass. If we set
it here, then a 'register-memory' version would wrongly get the commutative
flag.
<rdar://problem/12180135>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162741 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoConvert V_SETALLONES/AVX_SETALLONES/AVX2_SETALLONES to Post-RA pseudos.
Craig Topper [Tue, 28 Aug 2012 07:30:47 +0000 (07:30 +0000)]
Convert V_SETALLONES/AVX_SETALLONES/AVX2_SETALLONES to Post-RA pseudos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162740 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMerge AVX_SET0PSY/AVX_SET0PDY/AVX2_SET0 into a single post-RA pseudo.
Craig Topper [Tue, 28 Aug 2012 07:05:28 +0000 (07:05 +0000)]
Merge AVX_SET0PSY/AVX_SET0PDY/AVX2_SET0 into a single post-RA pseudo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162738 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agollvm/test/CodeGen/X86/pr12312.ll: Add -mtriple=x86_64-unknown-unknown.
NAKAMURA Takumi [Tue, 28 Aug 2012 04:04:29 +0000 (04:04 +0000)]
llvm/test/CodeGen/X86/pr12312.ll: Add -mtriple=x86_64-unknown-unknown.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162736 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix PR12312
Michael Liao [Tue, 28 Aug 2012 03:34:40 +0000 (03:34 +0000)]
Fix PR12312

- Add a target-specific DAG optimization to recognize a pattern PTEST-able.
  Such a pattern is a OR'd tree with X86ISD::OR as the root node. When
  X86ISD::OR node has only its flag result being used as a boolean value and
  all its leaves are extracted from the same vector, it could be folded into an
  X86ISD::PTEST node.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162735 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoCheck all patterns for missing instruction flags.
Jakob Stoklund Olesen [Tue, 28 Aug 2012 03:26:49 +0000 (03:26 +0000)]
Check all patterns for missing instruction flags.

Both single-instruction and multi-instruction patterns can be checked
for missing mayLoad / mayStore, and hasSideEffects flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162734 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove extra MayLoad/MayStore flags from atomic_load/store.
Jakob Stoklund Olesen [Tue, 28 Aug 2012 03:11:32 +0000 (03:11 +0000)]
Remove extra MayLoad/MayStore flags from atomic_load/store.

These extra flags are not required to properly order the atomic
load/store instructions. SelectionDAGBuilder chains atomics as if they
were volatile, and SelectionDAG::getAtomic() sets the isVolatile bit on
the memory operands of all atomic operations.

The volatile bit is enough to order atomic loads and stores during and
after SelectionDAG.

This means we set mayLoad on atomic_load, mayStore on atomic_store, and
mayLoad+mayStore on the remaining atomic read-modify-write operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162733 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert r162713: "Add ATOMIC_LDR* pseudo-instructions to model atomic_load on ARM."
Jakob Stoklund Olesen [Tue, 28 Aug 2012 03:11:27 +0000 (03:11 +0000)]
Revert r162713: "Add ATOMIC_LDR* pseudo-instructions to model atomic_load on ARM."

This wasn't the right way to enforce ordering of atomics.

We are already setting the isVolatile bit on memory operands of atomic
operations which is good enough to enforce the correct ordering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162732 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix mips' long branch pass.
Akira Hatanaka [Tue, 28 Aug 2012 03:03:05 +0000 (03:03 +0000)]
Fix mips' long branch pass.

Instructions emitted to compute branch offsets now use immediate operands
instead of symbolic labels. This change was needed because there were problems
when R_MIPS_HI16/LO16 relocations were used to make shared objects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162731 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSplit several PPC instruction classes.
Hal Finkel [Tue, 28 Aug 2012 02:49:14 +0000 (02:49 +0000)]
Split several PPC instruction classes.

Slight reorganisation of PPC instruction classes for scheduling. No
functionality change for existing subtargets.
 - Clearly separate load/store-with-update instructions from regular loads and stores.
 - Split IntRotateD -> IntRotateD and IntRotateDI
 - Split out fsub and fadd from FPGeneral -> FPAddSub
 - Update existing itineraries

Patch by Tobias von Koch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162729 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix bug 13532.
Akira Hatanaka [Tue, 28 Aug 2012 02:12:42 +0000 (02:12 +0000)]
Fix bug 13532.

In SelectionDAGLegalize::ExpandLegalINT_TO_FP, expand INT_TO_FP nodes without
using any f64 operations if f64 is not a legal type.

Patch by Stefan Kristiansson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162728 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAllow remat of LI on PPC.
Hal Finkel [Tue, 28 Aug 2012 02:10:33 +0000 (02:10 +0000)]
Allow remat of LI on PPC.

Allow load-immediates to be rematerialised in the register coalescer for
PPC. This makes test/CodeGen/PowerPC/big-endian-formal-args.ll fail,
because it relies on a register move getting emitted. The immediate load is
equivalent, so change this test case.

Patch by Tobias von Koch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162727 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd the Freescale vendor to Triple.
Hal Finkel [Tue, 28 Aug 2012 02:10:30 +0000 (02:10 +0000)]
Add the Freescale vendor to Triple.

Adds the vendor 'fsl' (used by Freescale SDK) to Triple. This will allow
clang support for Freescale cross-compile configurations.

Patch by Tobias von Koch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162726 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoEliminate redundant CR moves on PPC32.
Hal Finkel [Tue, 28 Aug 2012 02:10:27 +0000 (02:10 +0000)]
Eliminate redundant CR moves on PPC32.

The 32-bit ABI requires CR bit 6 to be set if the call has fp arguments and
unset if it doesn't. The solution up to now was to insert a MachineNode to
set/unset the CR bit, which produces a CR vreg. This vreg was then copied
into CR bit 6. When the register allocator saw a bunch of these in the same
function, it allocated the set/unset CR bit in some random CR register (1
extra instruction) and then emitted CR moves before every vararg function
call, rather than just setting and unsetting CR bit 6 directly before every
vararg function call. This patch instead inserts a PPCcrset/PPCcrunset
instruction which are then matched by a dedicated instruction pattern.

Patch by Tobias von Koch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162725 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoOptimize zext on PPC64.
Hal Finkel [Tue, 28 Aug 2012 02:10:15 +0000 (02:10 +0000)]
Optimize zext on PPC64.

The zeroextend IR instruction is lowered to an 'and' node with an immediate
mask operand, which in turn gets legalised to a sequence of ori's & ands.
This can be done more efficiently using the rldicl instruction.

Patch by Tobias von Koch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162724 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTemporarily revert this to bring back the bots.
Eric Christopher [Tue, 28 Aug 2012 01:17:46 +0000 (01:17 +0000)]
Temporarily revert this to bring back the bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162722 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMore missing mayLoad flags on AVX multiclasses.
Jakob Stoklund Olesen [Tue, 28 Aug 2012 00:02:01 +0000 (00:02 +0000)]
More missing mayLoad flags on AVX multiclasses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162714 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd ATOMIC_LDR* pseudo-instructions to model atomic_load on ARM.
Jakob Stoklund Olesen [Mon, 27 Aug 2012 23:58:52 +0000 (23:58 +0000)]
Add ATOMIC_LDR* pseudo-instructions to model atomic_load on ARM.

It is not safe to use normal LDR instructions because they may be
reordered by the scheduler. The ATOMIC_LDR pseudos have a mayStore flag
that prevents reordering.

Atomic loads are also prevented from participating in rematerialization
and load folding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162713 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd --program-prefix support to build.
Sebastian Pop [Mon, 27 Aug 2012 23:05:06 +0000 (23:05 +0000)]
Add --program-prefix support to build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162707 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix compile error when building with C++11 - clang thinks that PRIx64 is a user-defin...
Marshall Clow [Mon, 27 Aug 2012 22:53:35 +0000 (22:53 +0000)]
Fix compile error when building with C++11 - clang thinks that PRIx64 is a user-defined suffix or something

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162704 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMake sure we add the predicate after all of the registers are added.
Bill Wendling [Mon, 27 Aug 2012 22:12:44 +0000 (22:12 +0000)]
Make sure we add the predicate after all of the registers are added.
<rdar://problem/12183003>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162703 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDon't use for loops for code that is only intended to execute once. No
Dan Gohman [Mon, 27 Aug 2012 18:31:36 +0000 (18:31 +0000)]
Don't use for loops for code that is only intended to execute once. No
intended functionality change. Thanks to Ahmed Charles for spotting it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162686 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix comment.
Rafael Espindola [Mon, 27 Aug 2012 16:04:24 +0000 (16:04 +0000)]
Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162678 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix comment for function RuntimeDyldImpl.resolveRelocation()
Danil Malyshev [Mon, 27 Aug 2012 15:34:01 +0000 (15:34 +0000)]
Fix comment for function RuntimeDyldImpl.resolveRelocation()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162677 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove the the block_node_iterator of Region, replace it by the block_iterator.
Hongbin Zheng [Mon, 27 Aug 2012 13:49:24 +0000 (13:49 +0000)]
Remove the the block_node_iterator of Region, replace it by the block_iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162672 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSupport MIPS DSP Rev2 intrinsics.
Simon Atanasyan [Mon, 27 Aug 2012 12:29:01 +0000 (12:29 +0000)]
Support MIPS DSP Rev2 intrinsics.
The patch reviewed by Akira Hatanaka.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162668 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agollvm/test/CodeGen/X86/fma.ll: Add -march=x86, or two tests would fail on non-x86...
NAKAMURA Takumi [Mon, 27 Aug 2012 11:50:26 +0000 (11:50 +0000)]
llvm/test/CodeGen/X86/fma.ll: Add -march=x86, or two tests would fail on non-x86 hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162667 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDWARFDebugRangeList.cpp: Use PRIx64 for uint64_t as format string.
NAKAMURA Takumi [Mon, 27 Aug 2012 10:10:10 +0000 (10:10 +0000)]
DWARFDebugRangeList.cpp: Use PRIx64 for uint64_t as format string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162665 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agollvm/test/CodeGen/X86/fma_patterns.ll: Add -mtriple=x86_64. It was incompatible on...
NAKAMURA Takumi [Mon, 27 Aug 2012 09:37:54 +0000 (09:37 +0000)]
llvm/test/CodeGen/X86/fma_patterns.ll: Add -mtriple=x86_64. It was incompatible on i686 and Windows x64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162664 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove MMX shift intrinsic handling code that also exists in SelectionDAGBuilder.
Craig Topper [Mon, 27 Aug 2012 08:08:30 +0000 (08:08 +0000)]
Remove MMX shift intrinsic handling code that also exists in SelectionDAGBuilder.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162661 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoCommit test change for r162658.
Craig Topper [Mon, 27 Aug 2012 07:55:50 +0000 (07:55 +0000)]
Commit test change for r162658.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162660 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago[DebugInfo] fixup for r162657: update CMakeLists.txt
Alexey Samsonov [Mon, 27 Aug 2012 07:24:43 +0000 (07:24 +0000)]
[DebugInfo] fixup for r162657: update CMakeLists.txt

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162659 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDon't allow vextractf128 to be folded with unaligned stores. We don't fold unaligned...
Craig Topper [Mon, 27 Aug 2012 07:19:59 +0000 (07:19 +0000)]
Don't allow vextractf128 to be folded with unaligned stores. We don't fold unaligned loads so shouldn't fold unaligned stores as it can cause an alignment fault to occur.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162658 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd basic support for .debug_ranges section to LLVM's DebugInfo library.
Alexey Samsonov [Mon, 27 Aug 2012 07:17:47 +0000 (07:17 +0000)]
Add basic support for .debug_ranges section to LLVM's DebugInfo library.
This section (introduced in DWARF-3) is used to define instruction address
ranges for functions that are not contiguous and can't be described
by low_pc/high_pc attributes (this is the usual case for inlined subroutines).
The patch is the first step to support fetching complete inlining info from DWARF.

Reviewed by Benjamin Kramer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162657 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFold some patterns into instruction definitons so tablegen can infer flags removing...
Craig Topper [Mon, 27 Aug 2012 07:04:50 +0000 (07:04 +0000)]
Fold some patterns into instruction definitons so tablegen can infer flags removing the need for an explicit 'neverHasSideEffects = 1'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162656 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFMA3 tests on bdver2 target for changes made in rev 162012. Also made
Anitha Boyapati [Mon, 27 Aug 2012 06:59:01 +0000 (06:59 +0000)]
FMA3 tests on bdver2 target for changes made in rev 162012. Also made
corresponding changes to existing tests for darwin triple to ensure that
same pattern is tested for bdver2 target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162655 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd HasAVX1Only predicate and use it for patterns that have an AVX1 instruction and...
Craig Topper [Mon, 27 Aug 2012 06:08:57 +0000 (06:08 +0000)]
Add HasAVX1Only predicate and use it for patterns that have an AVX1 instruction and an AVX2 instruction rather than relying on AddedComplexity.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162654 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMake sure that FMA3 is favored even when FMA4 is also enabled. Test case for r162454.
Craig Topper [Mon, 27 Aug 2012 03:38:15 +0000 (03:38 +0000)]
Make sure that FMA3 is favored even when FMA4 is also enabled. Test case for r162454.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162653 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPass -lLTO after gold-plugin.o so that it gets used in systems that default to
Rafael Espindola [Mon, 27 Aug 2012 03:03:07 +0000 (03:03 +0000)]
Pass -lLTO after gold-plugin.o so that it gets used in systems that default to
--as-needed.
Patch by Felix Geyer. Fixes pr13262.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162652 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMark avx2 maskstore has ReadWriteArgMem. Mark broadcast and maskload as ReadArgMem.
Craig Topper [Sun, 26 Aug 2012 22:01:42 +0000 (22:01 +0000)]
Mark avx2 maskstore has ReadWriteArgMem. Mark broadcast and maskload as ReadArgMem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162649 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix integer undefined behavior due to signed left shift overflow in LLVM.
Richard Smith [Fri, 24 Aug 2012 23:29:28 +0000 (23:29 +0000)]
Fix integer undefined behavior due to signed left shift overflow in LLVM.
Reviewed offline by chandlerc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162623 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd missing mayLoad flags to a large class of AVX *_Int instructions.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 23:29:07 +0000 (23:29 +0000)]
Add missing mayLoad flags to a large class of AVX *_Int instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162622 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMissed tLEApcrelJT.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 22:46:55 +0000 (22:46 +0000)]
Missed tLEApcrelJT.

ARMConstantIslandPass expects this instruction to stay in the same basic
block as the jump table branch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162615 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoInfer instruction properties from single-instruction patterns.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 22:46:53 +0000 (22:46 +0000)]
Infer instruction properties from single-instruction patterns.

Previously, instructions without a primary patterns wouldn't get their
properties inferred. Now, we use all single-instruction patterns for
inference, including 'def : Pat<>' instances.

This causes a lot of instruction flags to change.

- Many instructions no longer have the UnmodeledSideEffects flag because
  their flags are now inferred from a pattern.

- Instructions with intrinsics will get a mayStore flag if they already
  have UnmodeledSideEffects and a mayLoad flag if they already have
  mayStore. This is because intrinsics properties are linear.

- Instructions with atomic_load patterns get a mayStore flag because
  atomic loads can't be reordered. The correct workaround is to create
  pseudo-instructions instead of using normal loads. PR13693.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162614 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoExplicitly mark LEApcrel pseudos with hasSideEffects.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 21:44:11 +0000 (21:44 +0000)]
Explicitly mark LEApcrel pseudos with hasSideEffects.

It's not clear that they should be marked as such, but tbb formation
fails if t2LEApcrelJT is hoisted of of a loop.

This doesn't change the flags on these instructions,
UnmodeledSideEffects was already inferred from the missing pattern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162603 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoStop inferring isVariadic from instruction patterns.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 21:08:09 +0000 (21:08 +0000)]
Stop inferring isVariadic from instruction patterns.

Instructions are now only marked as variadic if they use variable_ops in
their ins list.

A variadic SDNode is typically used for call nodes that have the call
arguments as operands.

A variadic MachineInstr can actually encode a variable number of
operands, for example ARM's stm/ldm instructions. A call instruction
does not have to be variadic. The call argument registers are added as
implicit operands.

This change remove the MCID::Variadic flags from most call and return
instructions, allowing us to better verify their operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162599 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix call instruction operands in ARMFastISel.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 20:52:46 +0000 (20:52 +0000)]
Fix call instruction operands in ARMFastISel.

The ARM BL and BLX instructions don't have predicate operands, but the
thumb variants tBL and tBLX do.

The argument registers should be added as implicit uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162593 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMark X86::RET and RETI instructions as variadic.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 20:52:44 +0000 (20:52 +0000)]
Mark X86::RET and RETI instructions as variadic.

There is special magic happening when returning floating point values on
the x87 stack. The RET instructions get extra f80 operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162592 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAvoid including explicit uses when counting SDNode imp-uses.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 20:52:42 +0000 (20:52 +0000)]
Avoid including explicit uses when counting SDNode imp-uses.

It is legal to have a register node as an explicit operand, it shouldn't
be counted as an implicit use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162591 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDisable Mips' delay slot filler when optimization level is O0.
Akira Hatanaka [Fri, 24 Aug 2012 20:40:15 +0000 (20:40 +0000)]
Disable Mips' delay slot filler when optimization level is O0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162589 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoIn MipsDAGToDAGISel::SelectAddr, fold add node into address operand, if its
Akira Hatanaka [Fri, 24 Aug 2012 20:21:49 +0000 (20:21 +0000)]
In MipsDAGToDAGISel::SelectAddr, fold add node into address operand, if its
second operand is MipsISD::GPRel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162584 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoForgot to check in ProfileDataTypes.h in r162576
Manman Ren [Fri, 24 Aug 2012 18:40:00 +0000 (18:40 +0000)]
Forgot to check in ProfileDataTypes.h in r162576

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162578 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoProfile: move a single enum out of ProfileInfoTypes.h into a new
Manman Ren [Fri, 24 Aug 2012 18:31:44 +0000 (18:31 +0000)]
Profile: move a single enum out of ProfileInfoTypes.h into a new
ProfileDataTypes.h header.

With this patch the old and new profiling code can exist side-by-side. The new
profiling code will be submitted soon and it only supports insert-edge-profiling
for now and will not depend on ProfileInfo.

Patch by Alastair Murray.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162576 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoBranchProb: modify the definition of an edge in BranchProbabilityInfo to handle
Manman Ren [Fri, 24 Aug 2012 18:14:27 +0000 (18:14 +0000)]
BranchProb: modify the definition of an edge in BranchProbabilityInfo to handle
the case of multiple edges from one block to another.

A simple example is a switch statement with multiple values to the same
destination. The definition of an edge is modified from a pair of blocks to
a pair of PredBlock and an index into the successors.

Also set the weight correctly when building SelectionDAG from LLVM IR,
especially when converting a Switch.
IntegersSubsetMapping is updated to calculate the weight for each cluster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162572 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoVerify explicit instruction properties when they can be inferred.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 17:08:41 +0000 (17:08 +0000)]
Verify explicit instruction properties when they can be inferred.

It is now allowed to explicitly set hasSideEffects, mayStore, and
mayLoad on instructions with patterns.

Verify that the patterns are consistent with the explicit flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162569 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago[asan/tsan] rename FunctionBlackList* to BlackList* as this class is not limited...
Kostya Serebryany [Fri, 24 Aug 2012 16:44:47 +0000 (16:44 +0000)]
[asan/tsan] rename FunctionBlackList* to BlackList* as this class is not limited to functions any more

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162566 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago[asan/tsan] extend the functionality of FunctionBlackList to globals and modules...
Kostya Serebryany [Fri, 24 Aug 2012 16:40:11 +0000 (16:40 +0000)]
[asan/tsan] extend the functionality of FunctionBlackList to globals and modules. Patch by Reid Watson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162565 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoLower constant pools and jump tables via TOC on PPC64/SVR4.
Roman Divacky [Fri, 24 Aug 2012 16:26:02 +0000 (16:26 +0000)]
Lower constant pools and jump tables via TOC on PPC64/SVR4.

In collaboration with Adhemerval Zanella.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162562 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoGVN: Fix quadratic runtime on the number of switch cases.
Benjamin Kramer [Fri, 24 Aug 2012 15:06:28 +0000 (15:06 +0000)]
GVN: Fix quadratic runtime on the number of switch cases.

No intended behavior change.  This was introduced in r162023.  With the fixed
algorithm a Release build of ARMInstPrinter.cpp goes from 16s to 10s on a
2011 MBP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162559 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix load/store SDNode flags.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 14:43:30 +0000 (14:43 +0000)]
Fix load/store SDNode flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162558 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd missing SDNPSideEffect flags.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 14:43:27 +0000 (14:43 +0000)]
Add missing SDNPSideEffect flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162557 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove more mayLoad workarounds.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 14:43:22 +0000 (14:43 +0000)]
Remove more mayLoad workarounds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162556 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTry to appease MSVC even more elaborately in the alignment hacking space.
Chandler Carruth [Fri, 24 Aug 2012 09:53:43 +0000 (09:53 +0000)]
Try to appease MSVC even more elaborately in the alignment hacking space.

MSVC doesn't support passing by-value parameters with alignment of
16-bytes or higher apparantly. What is deeply confusing is that it seems
to *sometimes* (but not always) apply this to any type whose alignment
is set using __declspec(align(...)). This caused lots of errors when we switch
SmallVector over to use the automatically aligned character array
utilities as they used __declspec(align(...)) heavily.

As a pretty horrible but effective work-around, we instead cherry pick
the smallest alignment sizes with specific types that happen to have the
correct alignment, and then fall back to the attribute solution past
them. This should resolve the MSVC build errors folks have been hitting.
Sorry for that. In good news, it will do this without introducing other
UB I hope. =]

Thanks to Timur Iskhodzhanov for helping me test this!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162549 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoCustom lower FMA intrinsics to target specific nodes and remove the patterns.
Craig Topper [Fri, 24 Aug 2012 04:03:22 +0000 (04:03 +0000)]
Custom lower FMA intrinsics to target specific nodes and remove the patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162534 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUse DW_FORM_flag_present to save space in debug information if we're
Eric Christopher [Fri, 24 Aug 2012 01:14:27 +0000 (01:14 +0000)]
Use DW_FORM_flag_present to save space in debug information if we're
not in darwin gdb compat mode.

Fixes rdar://10975088

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162526 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd support for some missing DW_FORM_*.
Eric Christopher [Fri, 24 Aug 2012 01:14:23 +0000 (01:14 +0000)]
Add support for some missing DW_FORM_*.

TODO: Fix code duplication and coding style.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162525 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFormatting.
Eric Christopher [Fri, 24 Aug 2012 01:14:21 +0000 (01:14 +0000)]
Formatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162524 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix undefined behavior (negation of INT_MIN) in ARM backend.
Richard Smith [Fri, 24 Aug 2012 00:35:46 +0000 (00:35 +0000)]
Fix undefined behavior (negation of INT_MIN) in ARM backend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162520 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix floating-point divide by zero, in a case where the value was not going to be...
Richard Smith [Fri, 24 Aug 2012 00:31:45 +0000 (00:31 +0000)]
Fix floating-point divide by zero, in a case where the value was not going to be used anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162518 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove some spurious mayLoad = 0 flags.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 00:31:20 +0000 (00:31 +0000)]
Remove some spurious mayLoad = 0 flags.

They were inserted to silence TableGen's warning about
redundant properties. That warning is now gone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162517 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoHeed guessInstructionProperties, and stop warning on redundant flags.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 00:31:16 +0000 (00:31 +0000)]
Heed guessInstructionProperties, and stop warning on redundant flags.

Emit TableGen errors if guessInstructionProperties is 0 and
instruction properties can't be inferred from patterns.

Allow explicit instruction properties even when they can be inferred.

This patch doesn't change the TableGen output. Redundant properties
are not yet verified because the tree has errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162516 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd missing SDNP properties on the flushw node.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 00:31:13 +0000 (00:31 +0000)]
Add missing SDNP properties on the flushw node.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162515 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoX86MemBarrier has unmodeled side effects.
Jakob Stoklund Olesen [Fri, 24 Aug 2012 00:31:10 +0000 (00:31 +0000)]
X86MemBarrier has unmodeled side effects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162514 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix undefined behavior (signed integer overflow) when Clang parses a hexfloat with...
Richard Smith [Fri, 24 Aug 2012 00:01:19 +0000 (00:01 +0000)]
Fix undefined behavior (signed integer overflow) when Clang parses a hexfloat with an enormous exponent. Caught by an existing unit test + -ftrapv.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162505 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFormatting cleanup.
Eric Christopher [Thu, 23 Aug 2012 23:26:57 +0000 (23:26 +0000)]
Formatting cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162499 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd an assert here in case parsing gave us a NULL compile unit.
Eric Christopher [Thu, 23 Aug 2012 23:21:11 +0000 (23:21 +0000)]
Add an assert here in case parsing gave us a NULL compile unit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162498 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove the DW_AT_MIPS_linkage name attribute when we don't need it
Eric Christopher [Thu, 23 Aug 2012 22:52:55 +0000 (22:52 +0000)]
Remove the DW_AT_MIPS_linkage name attribute when we don't need it
output (we're emitting a specification already and the information
isn't changing) and we're not in old gdb compat mode.

Saves 1% on the debug information for a build of llvm.

Fixes rdar://11043421

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162493 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTurn these two options in to trinary state so that they can be
Eric Christopher [Thu, 23 Aug 2012 22:36:40 +0000 (22:36 +0000)]
Turn these two options in to trinary state so that they can be
turned on and off separate from the platform if you're on darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162487 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd a flag to DwarfDebug to allow it to communicate whether or not
Eric Christopher [Thu, 23 Aug 2012 22:36:36 +0000 (22:36 +0000)]
Add a flag to DwarfDebug to allow it to communicate whether or not
we're using the darwin old gdb compat mode for emitting dwarf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162486 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPreserve operand flags in convertToThreeAddress() by copying operands.
Jakob Stoklund Olesen [Thu, 23 Aug 2012 22:36:31 +0000 (22:36 +0000)]
Preserve operand flags in convertToThreeAddress() by copying operands.

No test case, this is a generalization of r160260.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162485 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTristate mayLoad, mayStore, and hasSideEffects.
Jakob Stoklund Olesen [Thu, 23 Aug 2012 19:34:46 +0000 (19:34 +0000)]
Tristate mayLoad, mayStore, and hasSideEffects.

Keep track of the set/unset state of these bits along with their
true/false values, but treat '?' as '0' for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162461 91177308-0d34-0410-b5e6-96231b3b80d8