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Fix PR14548: SROA was crashing on a mixture of i1 and i8 loads and stores.
When SROA was evaluating a mixture of i1 and i8 loads and stores, in
just a particular case, it would tickle a latent bug where we compared
bits to bytes rather than bits to bits. As a consequence of the latent
bug, we would allow integers through which were not byte-size multiples,
a situation the later rewriting code was never intended to handle.
In release builds this could trigger all manner of oddities, but the
reported issue in PR14548 was forming invalid bitcast instructions.
The only downside of this fix is that it makes it more clear that SROA
in its current form is not capable of handling mixed i1 and i8 loads and
stores. Sometimes with the previous code this would work by luck, but
usually it would crash, so I'm not terribly worried. I'll watch the LNT
numbers just to be sure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@169735 91177308-0d34-0410-b5e6-96231b3b80d8
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Merging r169183:
RuntimeDyld: Fix up r169178. MSVC doesn't like "or".
Merging r169178:
Runtime dynamic linker for MCJIT should support MIPS BigEndian architecture.
This small change adds support for that. It will make all MCJIT tests pass
in make-check on BigEndian platforms.
Patch by Petar Jovanovic.
Merging r169177:
Classic JIT is still being supported by MIPS, along with MCJIT.
This change adds endian-awareness to MipsJITInfo and emitWordLE in
MipsCodeEmitter has become emitWord now to support both endianness.
Patch by Petar Jovanovic.
Merging r169174:
Functions in MipsCodeEmitter.cpp that expand unaligned loads/stores are dead
code. Removing it.
Patch by Petar Jovanovic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@169296 91177308-0d34-0410-b5e6-96231b3b80d8
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Merging r168471:
Mips direct object xgot support
This patch provides support for the MIPS relocations:
*) R_MIPS_GOT_HI16
*) R_MIPS_GOT_LO16
*) R_MIPS_CALL_HI16
*) R_MIPS_CALL_LO16
These are used for large GOT instruction sequences.
Contributer: Jack Carter
Merging r168460:
[mips] Generate big GOT code.
Merging r168458:
[mips] Simplify lowering functions in MipsISelLowering.cpp by using the helper
functions added in r168456.
Merging r168456:
[mips] Add helper functions that create nodes for computing address.
Merging r168455:
[mips] Add command line option "-mxgot".
Merging r168453:
[mips] When a node which loads from a GOT is created, pass a MachinePointerInfo
referring to a GOT entry.
Merging r168450:
[mips] Add target operand flag enums for big GOT relocations.
Merging r168448:
Add relocations used for mips big GOT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@169294 91177308-0d34-0410-b5e6-96231b3b80d8
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SROA: Avoid struct and array types early to avoid creating an overly large integer type.
Fixes PR14465.
Differential Revision: http://llvm-reviews.chandlerc.com/D148
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@169290 91177308-0d34-0410-b5e6-96231b3b80d8
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Follow up to 168711: It's safe to base this analysis on the found compare, just return the value for the right predicate.
Thanks to Andy for catching this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168974 91177308-0d34-0410-b5e6-96231b3b80d8
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SCEV: Even if the latch terminator is foldable we can't deduce the result of an unrelated condition with it.
Fixes PR14432.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168973 91177308-0d34-0410-b5e6-96231b3b80d8
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Don't use iterator after being erased.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168947 91177308-0d34-0410-b5e6-96231b3b80d8
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Avoid rewriting instructions twice.
This could cause miscompilations in targets where sub-register
composition is not always idempotent (ARM).
<rdar://problem/12758887>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168849 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168842 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168839 91177308-0d34-0410-b5e6-96231b3b80d8
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Signed-off-by: Abdoulaye Walsimou Gaye <awg@embtoolkit.org>
(cherry picked from commit 88e1a833c45dfcf881462516c1c3f2bc5d13cf19)
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Handle DAG CSE adding new uses during ReplaceAllUsesWith. Fixes PR14333.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168596 91177308-0d34-0410-b5e6-96231b3b80d8
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Make this easier to understand, as suggested by Chandler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168594 91177308-0d34-0410-b5e6-96231b3b80d8
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InstructionSimplify should be able to simplify A+B==B+A to 'true'
but wasn't due to the same logic bug that caused PR14361.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168593 91177308-0d34-0410-b5e6-96231b3b80d8
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Handle mixed normal and early-clobber defs on inline asm.
PR14376.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168527 91177308-0d34-0410-b5e6-96231b3b80d8
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Update call to the new syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168526 91177308-0d34-0410-b5e6-96231b3b80d8
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Fix PR14060, an infinite loop in reassociate. The problem was that one of the
operands of the expression being written was wrongly thought to be reusable as
an inner node of the expression resulting in it turning up as both an inner node
*and* a leaf, creating a cycle in the def-use graph. This would have caused the
verifier to blow up if things had gotten that far, however it managed to provoke
an infinite loop first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168489 91177308-0d34-0410-b5e6-96231b3b80d8
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Make the AttrListPtr object a part of the LLVMContext.
When code deletes the context, the AttributeImpls that the AttrListPtr points to
are now invalid. Therefore, instead of keeping a separate managed static for the
AttrListPtrs that's reference counted, move it into the LLVMContext and delete
it when deleting the AttributeImpls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168486 91177308-0d34-0410-b5e6-96231b3b80d8
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Don't try to calculate the alignment of an unsigned type. Fixes PR14371!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168480 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168465 91177308-0d34-0410-b5e6-96231b3b80d8
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Set of Attributes patches.
Merging r168354:
Make the AttrListPtr object a part of the LLVMContext.
When code deletes the context, the AttributeImpls that the AttrListPtr points to
are now invalid. Therefore, instead of keeping a separate managed static for the
AttrListPtrs that's reference counted, move it into the LLVMContext and delete
it when deleting the AttributeImpls.
Merging r168355:
Merging r168379
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168457 91177308-0d34-0410-b5e6-96231b3b80d8
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Fix PR14361: wrong simplification of A+B==B+A. You may think that the old logic
replaced by this patch is equivalent to the new logic, but you'd be wrong, and
that's exactly where the bug was. There's a similar bug in instsimplify which
manifests itself as instsimplify failing to simplify this, rather than doing it
wrong, see next commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168447 91177308-0d34-0410-b5e6-96231b3b80d8
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Fix a crash observed by Shuxin Yang. The issue here is that LinearizeExprTree,
the utility for extracting a chain of operations from the IR, thought that it
might as well combine any constants it came across (rather than just returning
them along with everything else). On the other hand, the factorization code
would like to see the individual constants (this is quite reasonable: it is
much easier to pull a factor of 3 out of 2*3 than it is to pull it out of 6;
you may think 6/3 isn't so hard, but due to overflow it's not as easy to undo
multiplications of constants as it may at first appear). This patch therefore
makes LinearizeExprTree stupider: it now leaves optimizing to the optimization
part of reassociate, and sticks to just analysing the IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168446 91177308-0d34-0410-b5e6-96231b3b80d8
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Merging r168361:
Fix PR14132 and handle OOB loads speculated throuh PHI nodes.
The issue is that we may end up with newly OOB loads when speculating
a load into the predecessors of a PHI node, and this confuses the new
integer splitting logic in some cases, triggering an assertion failure.
In fact, the branch in question must be dead code as it loads from
a too-narrow alloca. Add code to handle this gracefully and leave the
requisite FIXMEs for both optimizing more aggressively and doing more to
aid sanitizing invalid code which triggers these patterns.
Merging r168346:
------------------------------------------------------------------------
Rework the rewriting of loads and stores for vector and integer allocas
to properly handle the combinations of these with split integer loads
and stores. This essentially replaces Evan's r168227 by refactoring the
code in a different way, and trynig to mirror that refactoring in both
the load and store sides of the rewriting.
Generally speaking there was some really problematic duplicated code
here that led to poorly founded assumptions and then subtle bugs. Now
much of the code actually flows through and follows a more consistent
style and logical path. There is still a tiny bit of duplication on the
store side of things, but it is much less bad.
This also changes the logic to never re-use a load or store instruction
as that was simply too error prone in practice.
I've added a few tests (one a reduction of the one in Evan's original
patch, which happened to be the same as the report in PR14349). I'm
going to look at adding a few more tests for things I found and fixed in
passing (such as the volatile tests in the vectorizable predicate).
This patch has survived bootstrap, and modulo one bugfix survived
Duncan's test suite, but let me know if anything else explodes.
Merging r168227:
Teach SROA rewriteVectorizedStoreInst to handle cases when the loaded value is narrower than the stored value. rdar://12713675
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168443 91177308-0d34-0410-b5e6-96231b3b80d8
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Preserve address space of forward-referenced global variables in the LL parser
Before, the parser would assert on the following code:
@a2 = global i8 addrspace(1)* @a
@a = addrspace(1) global i8 0
because the type of @a was "i8*" instead of "i8 addrspace(1)*" when parsing
the initializer for @a2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168435 91177308-0d34-0410-b5e6-96231b3b80d8
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NVPTXISelLowering.cpp: Fix warnings. [-Wunused-variable]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168378 91177308-0d34-0410-b5e6-96231b3b80d8
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r167864
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168351 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168350 91177308-0d34-0410-b5e6-96231b3b80d8
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Fix PR14314
- Fix operand order for atomic sub, where the minuend is the value
loaded from memory and the subtrahend is the parameter specified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168336 91177308-0d34-0410-b5e6-96231b3b80d8
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r168198
[NVPTX] Order global variables in def-use order before emiting them in the final assembly
r167948
[NVPTX] Implement custom lowering of loads/stores for i1
Loads from i1 become loads from i8 followed by trunc
Stores to i1 become zext to i8 followed by store to i8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168335 91177308-0d34-0410-b5e6-96231b3b80d8
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Do not consider a machine instruction that uses and defines the same
physical register as candidate for common subexpression elimination
in MachineCSE.
This fixes a bug on PowerPC in MultiSource/Applications/oggenc/oggenc
caused by MachineCSE invalidly merging two separate DYNALLOC insns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168334 91177308-0d34-0410-b5e6-96231b3b80d8
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Remove unused field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168333 91177308-0d34-0410-b5e6-96231b3b80d8
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Signed-off-by: Abdoulaye Walsimou Gaye <awg@embtoolkit.org>
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SimplifyCFG: Don't assume non-null ScalarTargetTransformInfo.
Patch by Pekka Jääskeläinen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168194 91177308-0d34-0410-b5e6-96231b3b80d8
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Constant::IsThreadDependent(): Use dyn_cast<Constant> instead of cast
It turns out that the operands of a Constant are not always themselves
Constant. For example, one of the operands of BlockAddress is
BasicBlock, which is not a Constant.
This should fix the dragonegg-x86_64-linux-gcc-4.6-test build which
broke in r168037.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168193 91177308-0d34-0410-b5e6-96231b3b80d8
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Make GlobalOpt be conservative with TLS variables (PR14309)
For global variables that get the same value stored into them
everywhere, GlobalOpt will replace them with a constant. The problem is
that a thread-local GlobalVariable looks like one value (the address of
the TLS var), but is different between threads.
This patch introduces Constant::isThreadDependent() which returns true
for thread-local variables and constants which depend on them (e.g. a GEP
into a thread-local array), and teaches GlobalOpt not to track such
values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168192 91177308-0d34-0410-b5e6-96231b3b80d8
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Merge SPIR64 target from trunk - the 64bit counterpart of SPIR.
The new OpenCL SPIR extension spec will define separate SPIR for 32 and 64 bit architectures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168092 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168012 91177308-0d34-0410-b5e6-96231b3b80d8
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These changes fix a serious interaction problem with the cost model on x86 that
could cause the vectorizer to enter an infinite loop (and sometimes crash in
other ways).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@167993 91177308-0d34-0410-b5e6-96231b3b80d8
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Each SM and PTX version is modeled as a subtarget feature/CPU. Additionally,
PTX 3.1 is added as the default PTX version to be out-of-the-box compatible
with CUDA 5.0.
Available CPUs for this target:
sm_10 - Select the sm_10 processor.
sm_11 - Select the sm_11 processor.
sm_12 - Select the sm_12 processor.
sm_13 - Select the sm_13 processor.
sm_20 - Select the sm_20 processor.
sm_21 - Select the sm_21 processor.
sm_30 - Select the sm_30 processor.
sm_35 - Select the sm_35 processor.
Available features for this target:
ptx30 - Use PTX version 3.0.
ptx31 - Use PTX version 3.1.
sm_10 - Target SM 1.0.
sm_11 - Target SM 1.1.
sm_12 - Target SM 1.2.
sm_13 - Target SM 1.3.
sm_20 - Target SM 2.0.
sm_21 - Target SM 2.1.
sm_30 - Target SM 3.0.
sm_35 - Target SM 3.5.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167699 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167698 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167696 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch migrates the memset optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167689 91177308-0d34-0410-b5e6-96231b3b80d8
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