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Davide Italiano [Sat, 29 Apr 2017 00:12:18 +0000 (00:12 +0000)]
[LoopUnswitch] Don't remove instructions with side effects.
This fixes PR32818.
Differential Revision: https://reviews.llvm.org/D32664
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301722
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Zachary Turner [Sat, 29 Apr 2017 00:03:32 +0000 (00:03 +0000)]
[llvm-readobj] Fix incorrect printing of CV column info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301720
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Duncan P. N. Exon Smith [Fri, 28 Apr 2017 23:59:53 +0000 (23:59 +0000)]
Fuzzer: Mark test/cxxstring.test UNSUPPORTED: windows
This has been mysteriously failing since r301593, which cleaned up the
types of things like size_t and SIZE_MAX for freestanding targets. Reid
and Kostya suggested marking it as UNSUPPORTED on windows, given that no
one has been able to reproduce locally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301719
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Zachary Turner [Fri, 28 Apr 2017 23:41:36 +0000 (23:41 +0000)]
[llvm-readobj] Use LLVMDebugInfoCodeView to parse line tables.
The llvm-readobj parsing code currently exists in our CodeView
library, so we use that to parse instead of re-writing the logic
in the tool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301718
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Zachary Turner [Fri, 28 Apr 2017 23:29:33 +0000 (23:29 +0000)]
[Support] Provide unsafe random access for VarStreamArray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301716
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Sanjay Patel [Fri, 28 Apr 2017 23:14:33 +0000 (23:14 +0000)]
[InstCombine] add tests to show potentially bogus application of DeMorgan (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301714
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Hans Wennborg [Fri, 28 Apr 2017 23:11:16 +0000 (23:11 +0000)]
Remove set but unused variable in BitcodeReader.cpp. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301713
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Hans Wennborg [Fri, 28 Apr 2017 23:01:32 +0000 (23:01 +0000)]
Revert r301697 "[IR] Make add/remove Attributes use AttrBuilder instead of AttributeList"
This broke the Clang build. (Clang-side patch missing?)
Original commit message:
> [IR] Make add/remove Attributes use AttrBuilder instead of
> AttributeList
>
> This change cleans up call sites and avoids creating temporary
> AttributeList objects.
>
> NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301712
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Matt Arsenault [Fri, 28 Apr 2017 22:52:41 +0000 (22:52 +0000)]
InferAddressSpaces: Search constant expressions for addrspacecasts
These are pretty common when using local memory, and the 64-bit generic
addressing is much more expensive to compute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301711
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Adrian Prantl [Fri, 28 Apr 2017 22:25:46 +0000 (22:25 +0000)]
Remove line and file from DINamespace.
Fixes the issue highlighted in
http://lists.llvm.org/pipermail/cfe-dev/2014-June/037500.html.
The DW_AT_decl_file and DW_AT_decl_line attributes on namespaces can
prevent LLVM from uniquing types that are in the same namespace. They
also don't carry any meaningful information.
rdar://problem/
17484998
Differential Revision: https://reviews.llvm.org/D32648
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301706
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Matt Arsenault [Fri, 28 Apr 2017 22:18:19 +0000 (22:18 +0000)]
InferAddressSpaces: Avoid looking up deleted values
While looking at pure addressing expressions, it's possible
for the value to appear later in Postorder.
I haven't been able to come up with a testcase where this
exhibits an actual issue, but if you insert a dump before
the value map lookup, a few testcases crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301705
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Matt Arsenault [Fri, 28 Apr 2017 22:18:08 +0000 (22:18 +0000)]
InferAddressSpaces: Infer from just addrspacecasts
Eliminates some more cases where some subset of the addressing
computation remains flat. Some cases with addrspacecasts
in nested constant expressions are still left behind however.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301704
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Michael Zolotukhin [Fri, 28 Apr 2017 22:14:27 +0000 (22:14 +0000)]
[SCEV] Use early exit in createAddRecFromPHI. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301703
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Daniel Berlin [Fri, 28 Apr 2017 22:05:55 +0000 (22:05 +0000)]
LoopRotate: Fix use after scope bug
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301702
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Krzysztof Parzyszek [Fri, 28 Apr 2017 21:57:53 +0000 (21:57 +0000)]
[RDF] Correctly calculate lane masks for defs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301700
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Krzysztof Parzyszek [Fri, 28 Apr 2017 21:56:33 +0000 (21:56 +0000)]
Properly handle PHIs with subregisters in UnreachableBlockElim
When a PHI operand has a subregister, create a COPY instead of simply
replacing the PHI output with the input it.
Differential Revision: https://reviews.llvm.org/D32650
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301699
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Krzysztof Parzyszek [Fri, 28 Apr 2017 21:54:11 +0000 (21:54 +0000)]
[Hexagon] Do not move a block if it is on a fall-through path
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301698
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Reid Kleckner [Fri, 28 Apr 2017 21:48:28 +0000 (21:48 +0000)]
[IR] Make add/remove Attributes use AttrBuilder instead of AttributeList
This change cleans up call sites and avoids creating temporary
AttributeList objects.
NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301697
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Craig Topper [Fri, 28 Apr 2017 21:48:09 +0000 (21:48 +0000)]
[ConstantRange] Use APInt::isNullValue rather than APInt::isMinValue where it would make more sense to thing of 0 as 0 rather than the minimum unsigned value. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301696
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Craig Topper [Fri, 28 Apr 2017 21:48:06 +0000 (21:48 +0000)]
[APInt] Add an isNullValue method to check for all bits being zero. Use it in a couple internal methods where it makes more sense than isMinValue or !getBoolValue. NFC
I used Null rather than Zero to match the getNullValue method name.
There are some other places outside APInt where isNullValue would be more readable than isMinValue even though they do the same thing. I'll update those in future patches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301695
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Craig Topper [Fri, 28 Apr 2017 21:48:03 +0000 (21:48 +0000)]
[ConstantRange] Use const references to prevent a couple APInt copies. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301694
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Davide Italiano [Fri, 28 Apr 2017 21:30:50 +0000 (21:30 +0000)]
[LoopUnswitch] Make DEBUG output more readable.
While debugging a miscompile I realized loopunswitch doesn't
put newlines when printing the instruction being replacement.
Ending up with a single line with many instruction replaced isn't
the best for readability and/or mental sanity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301692
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Sam Clegg [Fri, 28 Apr 2017 21:22:38 +0000 (21:22 +0000)]
[WebAssembly] Add size of section header to data relocation offsets.
Also, add test for data relocations and fix addend to
be signed.
Subscribers: jfb, dschuff
Differential Revision: https://reviews.llvm.org/D32513
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301690
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Matt Arsenault [Fri, 28 Apr 2017 21:13:09 +0000 (21:13 +0000)]
[ValueTracking] Teach isSafeToSpeculativelyExecute() about the speculatable attribute
Patch by Tom Stellard
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301688
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Sam Clegg [Fri, 28 Apr 2017 21:12:09 +0000 (21:12 +0000)]
[WebAssembly] Write initial memory in pages not bytes
Subscribers: jfb, dschuff
Differential Revision: https://reviews.llvm.org/D32660
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301687
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Matt Arsenault [Fri, 28 Apr 2017 21:01:46 +0000 (21:01 +0000)]
TableGen: Add IntrHasSideEffects property for intrinsics
The IntrNoMem, IntrReadMem, IntrWriteMem, and IntrArgMemOnly intrinsic
properties differ from their corresponding LLVM IR attributes by specifying
that the intrinsic, in addition to its memory properties, has no other side
effects.
The IntrHasSideEffects flag used in combination with one of the memory flags
listed above, makes it possible to define an intrinsic such that its
properties at the CodeGen layer match its properties at the IR layer.
Patch by Tom Stellard
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301685
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Reid Kleckner [Fri, 28 Apr 2017 20:34:27 +0000 (20:34 +0000)]
Make getParamAlignment use argument numbers
The method is called "get *Param* Alignment", and is only used for
return values exactly once, so it should take argument indices, not
attribute indices.
Avoids confusing code like:
IsSwiftError = CS->paramHasAttr(ArgIdx, Attribute::SwiftError);
Alignment = CS->getParamAlignment(ArgIdx + 1);
Add getRetAlignment to handle the one case in Value.cpp that wants the
return value alignment.
This is a potentially breaking change for out-of-tree backends that do
their own call lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301682
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Matthias Braun [Fri, 28 Apr 2017 20:31:49 +0000 (20:31 +0000)]
GlobalISel: Followup for r301679
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301681
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Matt Arsenault [Fri, 28 Apr 2017 20:25:27 +0000 (20:25 +0000)]
Add speculatable function attribute
This attribute tells the optimizer that the function may be speculated.
Patch by Tom Stellard
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301680
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Matthias Braun [Fri, 28 Apr 2017 20:25:05 +0000 (20:25 +0000)]
TargetLowering: Add finalizeLowering() function; NFC
Adds a new method finalizeLowering to TargetLoweringBase. This is in
preparation for an upcoming commit.
This function is meant for target specific adjustments to
MachineFrameInfo or register reservations.
Move the freezeRegisters() and the hasCopyImplyingStackAdjustment()
handling into the new function to prove the concept. As an added bonus
GlobalISel no longer missed the hasCopyImplyingStackAdjustment()
handling with this.
Differential Revision: https://reviews.llvm.org/D32621
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301679
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Marek Olsak [Fri, 28 Apr 2017 20:21:58 +0000 (20:21 +0000)]
AMDGPU: Add new amdgcn.init.exec intrinsics
v2: More tests, bug fixes, cosmetic changes.
Subscribers: arsenm, kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, llvm-commits, t-tye
Differential Revision: https://reviews.llvm.org/D31762
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301677
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Bob Haarman [Fri, 28 Apr 2017 20:17:15 +0000 (20:17 +0000)]
limit to 2 parallel links when using thinlto
Summary:
When using ThinLTO, the linker performs its own parallelism. This
change limits the number of parallel link jobs that Ninja will issue
to keep the total number of threads reasonable when linking with
ThinLTO.
Reviewers: hans, ruiu
Subscribers: mgorny, mehdi_amini, Prazek
Differential Revision: https://reviews.llvm.org/D31990
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301676
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Daniel Berlin [Fri, 28 Apr 2017 19:55:38 +0000 (19:55 +0000)]
Kill off the old SimplifyInstruction API by converting remaining users.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301673
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Davide Italiano [Fri, 28 Apr 2017 19:39:45 +0000 (19:39 +0000)]
[IPO/MergeFunctions] This function is used only under DEBUG().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301672
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Reid Kleckner [Fri, 28 Apr 2017 19:22:40 +0000 (19:22 +0000)]
[RS4GC] Simplify attribute handling code NFC
Avoids use of AttributeList::getNumSlots, making it easier to change the
underlying implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301671
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Reid Kleckner [Fri, 28 Apr 2017 18:37:16 +0000 (18:37 +0000)]
Use Argument::hasAttribute and AttributeList::ReturnIndex more
This eliminates many extra 'Idx' induction variables in loops over
arguments in CodeGen/ and Target/. It also reduces the number of places
where we assume that ReturnIndex is 0 and that we should add one to
argument numbers to get the corresponding attribute list index.
NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301666
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Adrian Prantl [Fri, 28 Apr 2017 18:30:36 +0000 (18:30 +0000)]
Cleanup: Use DIExpression::prepend in buildDbgValueForSpill(). (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301665
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Reid Kleckner [Fri, 28 Apr 2017 17:58:18 +0000 (17:58 +0000)]
[IR] Delete unused Argument::removeAttr overload
It doesn't make sense to remove an AttributeList from an argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301663
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Adrian Prantl [Fri, 28 Apr 2017 17:51:05 +0000 (17:51 +0000)]
Clean up DIExpression::prependDIExpr a little. (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301662
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Peter Collingbourne [Fri, 28 Apr 2017 17:41:43 +0000 (17:41 +0000)]
Bitcode: Do not remove empty summary entries when reading a per-module summary.
This became no longer necessary after D19462 landed, and will be incompatible
with an upcoming change to the summary data structures that changes how we
represent references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301660
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Saleem Abdulrasool [Fri, 28 Apr 2017 17:18:28 +0000 (17:18 +0000)]
IR: fix some doxygen grammar (NFC)
Fix a bit of the doxygen grammar that was off that I noticed while
looking at this file for another issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301658
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Craig Topper [Fri, 28 Apr 2017 16:58:05 +0000 (16:58 +0000)]
[APInt] Add clearSignBit method. Use it and setSignBit in a few places. NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301656
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Craig Topper [Fri, 28 Apr 2017 16:57:59 +0000 (16:57 +0000)]
[LazyValueInfo] Fix typo in comment. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301655
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Craig Topper [Fri, 28 Apr 2017 16:57:55 +0000 (16:57 +0000)]
[ValueTracking] Use APInt::isSubsetOf and APInt::intersects. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301654
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Alexei Starovoitov [Fri, 28 Apr 2017 16:51:01 +0000 (16:51 +0000)]
[bpf] add bigendian support to disassembler
. swap 4-bit register encoding, 16-bit offset and 32-bit imm to support big endian archs
. add a test
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301653
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Tim Northover [Fri, 28 Apr 2017 16:06:00 +0000 (16:06 +0000)]
CMake: ignore git stderr when trying to sort out revision. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301650
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Jun Bum Lim [Fri, 28 Apr 2017 16:04:03 +0000 (16:04 +0000)]
[InlineCost] Improve the cost heuristic for Switch
Summary:
The motivation example is like below which has 13 cases but only 2 distinct targets
```
lor.lhs.false2: ; preds = %if.then
switch i32 %Status, label %if.then27 [
i32 -7012, label %if.end35
i32 -10008, label %if.end35
i32 -10016, label %if.end35
i32 15000, label %if.end35
i32 14013, label %if.end35
i32 10114, label %if.end35
i32 10107, label %if.end35
i32 10105, label %if.end35
i32 10013, label %if.end35
i32 10011, label %if.end35
i32 7008, label %if.end35
i32 7007, label %if.end35
i32 5002, label %if.end35
]
```
which is compiled into a balanced binary tree like this on AArch64 (similar on X86)
```
.LBB853_9: // %lor.lhs.false2
mov w8, #10012
cmp w19, w8
b.gt .LBB853_14
// BB#10: // %lor.lhs.false2
mov w8, #5001
cmp w19, w8
b.gt .LBB853_18
// BB#11: // %lor.lhs.false2
mov w8, #-10016
cmp w19, w8
b.eq .LBB853_23
// BB#12: // %lor.lhs.false2
mov w8, #-10008
cmp w19, w8
b.eq .LBB853_23
// BB#13: // %lor.lhs.false2
mov w8, #-7012
cmp w19, w8
b.eq .LBB853_23
b .LBB853_3
.LBB853_14: // %lor.lhs.false2
mov w8, #14012
cmp w19, w8
b.gt .LBB853_21
// BB#15: // %lor.lhs.false2
mov w8, #-10105
add w8, w19, w8
cmp w8, #9 // =9
b.hi .LBB853_17
// BB#16: // %lor.lhs.false2
orr w9, wzr, #0x1
lsl w8, w9, w8
mov w9, #517
and w8, w8, w9
cbnz w8, .LBB853_23
.LBB853_17: // %lor.lhs.false2
mov w8, #10013
cmp w19, w8
b.eq .LBB853_23
b .LBB853_3
.LBB853_18: // %lor.lhs.false2
mov w8, #-7007
add w8, w19, w8
cmp w8, #2 // =2
b.lo .LBB853_23
// BB#19: // %lor.lhs.false2
mov w8, #5002
cmp w19, w8
b.eq .LBB853_23
// BB#20: // %lor.lhs.false2
mov w8, #10011
cmp w19, w8
b.eq .LBB853_23
b .LBB853_3
.LBB853_21: // %lor.lhs.false2
mov w8, #14013
cmp w19, w8
b.eq .LBB853_23
// BB#22: // %lor.lhs.false2
mov w8, #15000
cmp w19, w8
b.ne .LBB853_3
```
However, the inline cost model estimates the cost to be linear with the number
of distinct targets and the cost of the above switch is just 2 InstrCosts.
The function containing this switch is then inlined about 900 times.
This change use the general way of switch lowering for the inline heuristic. It
etimate the number of case clusters with the suitability check for a jump table
or bit test. Considering the binary search tree built for the clusters, this
change modifies the model to be linear with the size of the balanced binary
tree. The model is off by default for now :
-inline-generic-switch-cost=false
This change was originally proposed by Haicheng in D29870.
Reviewers: hans, bmakam, chandlerc, eraman, haicheng, mcrosier
Reviewed By: hans
Subscribers: joerg, aemerson, llvm-commits, rengolin
Differential Revision: https://reviews.llvm.org/D31085
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301649
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Simon Pilgrim [Fri, 28 Apr 2017 14:42:15 +0000 (14:42 +0000)]
Move variable local to where ita used. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301646
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Teresa Johnson [Fri, 28 Apr 2017 14:30:54 +0000 (14:30 +0000)]
Memory intrinsic value profile optimization: Avoid divide by 0
Summary:
Skip memops if the total value profiled count is 0, we can't correctly
scale up the counts and there is no point anyway.
Reviewers: davidxl
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D32624
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301645
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Simon Pilgrim [Fri, 28 Apr 2017 13:21:18 +0000 (13:21 +0000)]
[DAGCombiner] Add ComputeNumSignBits vector demanded elements support to ASHR and INSERT_VECTOR_ELT (reapplied)
Reapplied r299221 after fix for nondeterminism in ThinLTO builder (rL301599), with extra check for implicit truncation of inserted element.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301644
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Simon Pilgrim [Fri, 28 Apr 2017 11:53:08 +0000 (11:53 +0000)]
[X86][SSE] Added new tests from D32416 to show codegen delta
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301641
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Simon Pilgrim [Fri, 28 Apr 2017 11:12:30 +0000 (11:12 +0000)]
[X86][SSE] Renames all ones test to better match type.
Added 8f32/4f64 optsize tests discussed on D32416
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301639
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Simon Pilgrim [Fri, 28 Apr 2017 10:31:42 +0000 (10:31 +0000)]
[X86][SSE] Add codegen test for _mm_set_pd1 (PR32827)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301638
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Diana Picus [Fri, 28 Apr 2017 09:20:31 +0000 (09:20 +0000)]
[ARM] GlobalISel: fixup r301632
Actually remove ARMInstructionSelector.h... Forgot to stage the removal
in the previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301633
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Diana Picus [Fri, 28 Apr 2017 09:10:38 +0000 (09:10 +0000)]
[ARM] GlobalISel: Get rid of ARMInstructionSelector.h. NFC.
Declare the ARMInstructionSelector in an anonymous namespace, to make it
more in line with the other targets which were migrated to this in
r299637 in order to avoid TableGen'erated headers being included in
non-GlobalISel builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301632
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George Rimar [Fri, 28 Apr 2017 08:54:10 +0000 (08:54 +0000)]
[DWARF] - Fix mistype in dump output of pub* tables. NFC.
There was a garbage character in output introduced by myself in
r290040 "[DWARF] - Introduce DWARFDebugPubTable class for dumping pub* sections."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301631
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Andrew Ng [Fri, 28 Apr 2017 08:44:30 +0000 (08:44 +0000)]
[DebugInfo][X86] Improve X86 Optimize LEAs handling of debug values.
This is a follow up to the fix in r298360 to improve the handling of debug
values when redundant LEAs are removed. The fix in r298360 effectively
discarded the debug values. This patch now attempts to preserve the debug
values by using the DWARF DW_OP_stack_value operation via prependDIExpr.
Moved functions appendOffset and prependDIExpr from Local.cpp to
DebugInfoMetadata.cpp and made them available as static member functions of
DIExpression.
Differential Revision: https://reviews.llvm.org/D31604
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301630
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Craig Topper [Fri, 28 Apr 2017 08:15:33 +0000 (08:15 +0000)]
[WebAssembly] Update calls to computeKnownBits after the changes from r301620.
I didn't realize WebAssembly wasn't a default build target so I missed that changes were needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301629
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Clement Courbet [Fri, 28 Apr 2017 07:56:31 +0000 (07:56 +0000)]
[X86][NFC] Refactor RepMovsRepeats in preparation for D32481.
Differential Revision: https://reviews.llvm.org/D32583
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301628
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Diana Picus [Fri, 28 Apr 2017 07:50:47 +0000 (07:50 +0000)]
[ARM] GlobalISel: Tighten test. NFC
Explicitly check types and load sizes in the IRTranslator test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301627
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Craig Topper [Fri, 28 Apr 2017 06:28:56 +0000 (06:28 +0000)]
[ValueTracking] Convert computeKnownBitsFromRangeMetadata to use KnownBits struct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301626
91177308-0d34-0410-b5e6-
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Max Kazantsev [Fri, 28 Apr 2017 06:25:39 +0000 (06:25 +0000)]
[EarlyCSE] Mark the condition of assume intrinsic as true
EarlyCSE should not just ignore assumes. It should use the fact that its condition is true for all dominated instructions.
Reviewers: sanjoy, reames, apilipenko, anna, skatkov
Reviewed By: reames, sanjoy
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D32482
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301625
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Max Kazantsev [Fri, 28 Apr 2017 06:05:48 +0000 (06:05 +0000)]
[EarlyCSE] Remove guards with conditions known to be true
If a condition is calculated only once, and there are multiple guards on this condition, we should be able
to remove all guards dominated by the first of them. This patch allows EarlyCSE to try to find the condition
of a guard among the known values, and if it is true, remove the guard. Otherwise we keep the guard and
mark its condition as 'true' for future consideration.
Reviewers: sanjoy, reames, apilipenko, skatkov, anna, dberlin
Reviewed By: reames, sanjoy
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D32476
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301623
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Craig Topper [Fri, 28 Apr 2017 05:31:46 +0000 (05:31 +0000)]
[SelectionDAG] Use KnownBits struct in DAG's computeKnownBits and simplifyDemandedBits
This patch replaces the separate APInts for KnownZero/KnownOne with a single KnownBits struct. This is similar to what was done to ValueTracking's version recently.
This is largely a mechanical transformation from KnownZero to Known.Zero.
Differential Revision: https://reviews.llvm.org/D32569
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301620
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Craig Topper [Fri, 28 Apr 2017 04:57:59 +0000 (04:57 +0000)]
[SelectionDAG] Use various APInt methods to reduce temporary APInt creation
This patch uses various APInt methods to reduce the number of temporary APInts. These were all found while working through converting SelectionDAG's computeKnownBits to also use the KnownBits struct recently added to the ValueTracking version.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301618
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Sanjoy Das [Fri, 28 Apr 2017 04:49:32 +0000 (04:49 +0000)]
Remove unnecessary semicolon
This shows up as a -Wpendatic error on GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301616
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Sanjoy Das [Fri, 28 Apr 2017 04:48:42 +0000 (04:48 +0000)]
[StackMaps] Increase the size of the "location size" field
Summary:
In some cases LLVM (especially the SLP vectorizer) will create vectors
that are 256 bytes (or larger). Given that this is intentional[0] is
likely to get more common, this patch updates the StackMap binary
format to deal with the spill locations for said vectors.
This change also bumps the stack map version from 2 to 3.
[0]: https://reviews.llvm.org/D32533#738350
Reviewers: reames, kavon, skatkov, javed.absar
Subscribers: mcrosier, nemanjai, llvm-commits
Differential Revision: https://reviews.llvm.org/D32629
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301615
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Saleem Abdulrasool [Fri, 28 Apr 2017 04:29:43 +0000 (04:29 +0000)]
COFF Import: expose both symbols
COFF Import libraries which use the obsolete CONSTANT export are
supposed to get two symbols, one with the `_imp_` prefix and one
without. Ensure that we expose both for iteration. This is necessary
to fix the librarian with COFF CONSTANT exports.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301614
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Craig Topper [Fri, 28 Apr 2017 03:36:24 +0000 (03:36 +0000)]
[APInt] Use inplace shift methods where possible. NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301612
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Zachary Turner [Fri, 28 Apr 2017 00:43:38 +0000 (00:43 +0000)]
[llvm-pdbdump] Allow printing only a portion of a stream.
When dumping raw data from a stream, you might know the offset
of a certain record you're interested in, as well as how long
that record is. Previously, you had to dump the entire stream
and wade through the bytes to find the interesting record.
This patch allows you to specify an offset and length on the
command line, and it will only dump the requested range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301607
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Sam Clegg [Fri, 28 Apr 2017 00:36:36 +0000 (00:36 +0000)]
[WebAssembly] Add some tests for wasm MC layer
Subscribers: jfb, dschuff
Differential Revision: https://reviews.llvm.org/D32558
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301606
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Davide Italiano [Thu, 27 Apr 2017 23:09:01 +0000 (23:09 +0000)]
[SROA] Fix nondeterminism exposed by Simon's r299221.
Use a SmallSetSetVector instead of a SmallPtrSet as iterating
over the latter is not stable ('<' relies on addresses).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301599
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Frederich Munch [Thu, 27 Apr 2017 22:10:57 +0000 (22:10 +0000)]
Fix a few pedantic warnings.
Reviewers: zturner, hansw, hans
Reviewed By: hans
Subscribers: hans, llvm-commits
Differential Revision: https://reviews.llvm.org/D32611
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301595
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Sanjay Patel [Thu, 27 Apr 2017 21:55:03 +0000 (21:55 +0000)]
[InstCombine] fix matcher to bind to specific operand (PR32830)
Matching any random value would be very wrong:
https://bugs.llvm.org/show_bug.cgi?id=32830
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301594
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Sanjoy Das [Thu, 27 Apr 2017 20:55:07 +0000 (20:55 +0000)]
Specify something that's true in practice
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301591
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Evgeniy Stepanov [Thu, 27 Apr 2017 20:27:27 +0000 (20:27 +0000)]
[asan] Fix dead stripping of globals on Linux.
Use a combination of !associated, comdat, @llvm.compiler.used and
custom sections to allow dead stripping of globals and their asan
metadata. Sometimes.
Currently this works on LLD, which supports SHF_LINK_ORDER with
sh_link pointing to the associated section.
This also works on BFD, which seems to treat comdats as
all-or-nothing with respect to linker GC. There is a weird quirk
where the "first" global in each link is never GC-ed because of the
section symbols.
At this moment it does not work on Gold (as in the globals are never
stripped).
This is a second re-land of r298158. This time, this feature is
limited to -fdata-sections builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301587
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Evgeniy Stepanov [Thu, 27 Apr 2017 20:27:23 +0000 (20:27 +0000)]
[asan] Put ctor/dtor in comdat.
When possible, put ASan ctor/dtor in comdat.
The only reason not to is global registration, which can be
TU-specific. This is not the case when there are no instrumented
globals. This is also limited to ELF targets, because MachO does
not have comdat, and COFF linkers may GC comdat constructors.
The benefit of this is a lot less __asan_init() calls: one per DSO
instead of one per TU. It's also necessary for the upcoming
gc-sections-for-globals change on Linux, where multiple references to
section start symbols trigger quadratic behaviour in gold linker.
This is a second re-land of r298756. This time with a flag to disable
the whole thing to avoid a bug in the gold linker:
https://sourceware.org/bugzilla/show_bug.cgi?id=19002
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301586
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Simon Pilgrim [Thu, 27 Apr 2017 20:19:00 +0000 (20:19 +0000)]
[X86][SSE] Add tests for broadcast from larger vector loads
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301583
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Zachary Turner [Thu, 27 Apr 2017 19:38:38 +0000 (19:38 +0000)]
[llvm-readobj] Dump COFF Resources section.
This patch dumps the raw bytes of the .rsrc sections that
are present in COFF object and executable files. Subsequent
patches will parse this information and dump in a more human
readable format.
Differential Revision: https://reviews.llvm.org/D32463
Patch By: Eric Beckmann
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301578
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Chandler Carruth [Thu, 27 Apr 2017 18:45:20 +0000 (18:45 +0000)]
[PM/LoopUnswitch] Introduce a new, simpler loop unswitch pass.
Currently, this pass only focuses on *trivial* loop unswitching. At that
reduced problem it remains significantly better than the current loop
unswitch:
- Old pass is worse than cubic complexity. New pass is (I think) linear.
- New pass is much simpler in its design by focusing on full unswitching. (See
below for details on this).
- New pass doesn't carry state for thresholds between pass iterations.
- New pass doesn't carry state for correctness (both miscompile and
infloop) between pass iterations.
- New pass produces substantially better code after unswitching.
- New pass can handle more trivial unswitch cases.
- New pass doesn't recompute the dominator tree for the entire function
and instead incrementally updates it.
I've ported all of the trivial unswitching test cases from the old pass
to the new one to make sure that major functionality isn't lost in the
process. For several of the test cases I've worked to improve the
precision and rigor of the CHECKs, but for many I've just updated them
to handle the new IR produced.
My initial motivation was the fact that the old pass carried state in
very unreliable ways between pass iterations, and these mechansims were
incompatible with the new pass manager. However, I discovered many more
improvements to make along the way.
This pass makes two very significant assumptions that enable most of these
improvements:
1) Focus on *full* unswitching -- that is, completely removing whatever
control flow construct is being unswitched from the loop. In the case
of trivial unswitching, this means removing the trivial (exiting)
edge. In non-trivial unswitching, this means removing the branch or
switch itself. This is in opposition to *partial* unswitching where
some part of the unswitched control flow remains in the loop. Partial
unswitching only really applies to switches and to folded branches.
These are very similar to full unrolling and partial unrolling. The
full form is an effective canonicalization, the partial form needs
a complex cost model, cannot be iterated, isn't canonicalizing, and
should be a separate pass that runs very late (much like unrolling).
2) Leverage LLVM's Loop machinery to the fullest. The original unswitch
dates from a time when a great deal of LLVM's loop infrastructure was
missing, ineffective, and/or unreliable. As a consequence, a lot of
complexity was added which we no longer need.
With these two overarching principles, I think we can build a fast and
effective unswitcher that fits in well in the new PM and in the
canonicalization pipeline. Some of the remaining functionality around
partial unswitching may not be relevant today (not many test cases or
benchmarks I can find) but if they are I'd like to add support for them
as a separate layer that runs very late in the pipeline.
Purely to make reviewing and introducing this code more manageable, I've
split this into first a trivial-unswitch-only pass and in the next patch
I'll add support for full non-trivial unswitching against a *fixed*
threshold, exactly like full unrolling. I even plan to re-use the
unrolling thresholds, as these are incredibly similar cost tradeoffs:
we're cloning a loop body in order to end up with simplified control
flow. We should only do that when the total growth is reasonably small.
One of the biggest changes with this pass compared to the previous one
is that previously, each individual trivial exiting edge from a switch
was unswitched separately as a branch. Now, we unswitch the entire
switch at once, with cases going to the various destinations. This lets
us unswitch multiple exiting edges in a single operation and also avoids
numerous extremely bad behaviors, where we would introduce 1000s of
branches to test for thousands of possible values, all of which would
take the exact same exit path bypassing the loop. Now we will use
a switch with 1000s of cases that can be efficiently lowered into
a jumptable. This avoids relying on somehow forming a switch out of the
branches or getting horrible code if that fails for any reason.
Another significant change is that this pass actively updates the CFG
based on unswitching. For trivial unswitching, this is actually very
easy because of the definition of loop simplified form. Doing this makes
the code coming out of loop unswitch dramatically more friendly. We
still should run loop-simplifycfg (at the least) after this to clean up,
but it will have to do a lot less work.
Finally, this pass makes much fewer attempts to simplify instructions
based on the unswitch. Something like loop-instsimplify, instcombine, or
GVN can be used to do increasingly powerful simplifications based on the
now dominating predicate. The old simplifications are things that
something like loop-instsimplify should get today or a very, very basic
loop-instcombine could get. Keeping that logic separate is a big
simplifying technique.
Most of the code in this pass that isn't in the old one has to do with
achieving specific goals:
- Updating the dominator tree as we go
- Unswitching all cases in a switch in a single step.
I think it is still shorter than just the trivial unswitching code in
the old pass despite having this functionality.
Differential Revision: https://reviews.llvm.org/D32409
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301576
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Eli Friedman [Thu, 27 Apr 2017 18:39:08 +0000 (18:39 +0000)]
[GlobalOpt] Correctly update metadata when localizing a global.
Just calling dropAllReferences leaves pointers to the ConstantExpr
behind, so we would eventually crash with a null pointer dereference.
Differential Revision: https://reviews.llvm.org/D32551
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301575
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Teresa Johnson [Thu, 27 Apr 2017 18:25:22 +0000 (18:25 +0000)]
Memory intrinsic value profile optimization: Improve debug output (NFC)
Summary:
Misc improvements to debug output. Fix a couple typos and also dump the
value profile before we make any profitability checks.
Reviewers: davidxl
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D32607
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301574
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Frederich Munch [Thu, 27 Apr 2017 18:05:29 +0000 (18:05 +0000)]
Limit disabling of warnings emitted from r301571 by checking __GNUC__.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301572
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Frederich Munch [Thu, 27 Apr 2017 17:33:50 +0000 (17:33 +0000)]
Fix warnings from test added in r301562 on Windows (when built without exceptions).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301571
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Vassil Vassilev [Thu, 27 Apr 2017 17:23:53 +0000 (17:23 +0000)]
Sync with changes from r300825 in clang.
Generate the better include paths. Instead of #include <llvm_header.h> doxygen
produces #include "llvm/Folder/llvm_header.h"
Patch by Yuka Takahashi (D32342)!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301569
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Sanjoy Das [Thu, 27 Apr 2017 17:17:16 +0000 (17:17 +0000)]
Use a pointer type for target frame indices during statepoint lowering
Summary:
The type of the target frame index is intptr, not the type of the value we're
going to store into it. Without this change we crash in the attached test case
when trying to type-legalize a TargetFrameIndex.
Patchpoint lowering types the target frame index as intptr as well.
Reviewers: reames, bogner, arsenm
Subscribers: arsenm, mcrosier, llvm-commits
Differential Revision: https://reviews.llvm.org/D32256
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301566
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Peter Collingbourne [Thu, 27 Apr 2017 17:04:05 +0000 (17:04 +0000)]
cmake: Touch $GIT_DIR/logs/HEAD if it does not already exist.
Apparently some git tools (such as "repo") may not create this file.
Patch by Quentin Neill.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301565
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Frederich Munch [Thu, 27 Apr 2017 16:55:24 +0000 (16:55 +0000)]
Refactor DynamicLibrary so searching for a symbol will have a defined order and
libraries are properly unloaded when llvm_shutdown is called.
Summary:
This was mostly affecting usage of the JIT, where storing the library handles in
a set made iteration unordered/undefined. This lead to disagreement between the
JIT and native code as to what the address and implementation of particularly on
Windows with stdlib functions:
JIT: putenv_s("TEST", "VALUE") // called msvcrt.dll, putenv_s
JIT: getenv("TEST") -> "VALUE" // called msvcrt.dll, getenv
Native: getenv("TEST") -> NULL // called ucrt.dll, getenv
Also fixed is the issue of DynamicLibrary::getPermanentLibrary(0,0) on Windows
not giving priority to the process' symbols as it did on Unix.
Reviewers: chapuni, v.g.vassilev, lhames
Reviewed By: lhames
Subscribers: danalbert, srhines, mgorny, vsk, llvm-commits
Differential Revision: https://reviews.llvm.org/D30107
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301562
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Xinliang David Li [Thu, 27 Apr 2017 16:34:00 +0000 (16:34 +0000)]
[PartialInlining]: Improve partial inlining to handle complex conditions
Differential Revision: http://reviews.llvm.org/D32249
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301561
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Zachary Turner [Thu, 27 Apr 2017 16:12:16 +0000 (16:12 +0000)]
[CodeView] Isolate Debug Info Fragments into standalone classes.
Previously parsing of these were all grouped together into a
single master class that could parse any type of debug info
fragment.
With writing forthcoming, the complexity of each individual
fragment is enough to warrant them having their own classes so
that reading and writing of each fragment type can be grouped
together, but isolated from the code for reading and writing
other fragment types.
In doing so, I found a place where parsing code was duplicated
for the FileChecksums fragment, across llvm-readobj and the
CodeView library, and one of the implementations had a bug.
Now that the codepaths are merged, the bug is resolved.
Differential Revision: https://reviews.llvm.org/D32547
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301557
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Zachary Turner [Thu, 27 Apr 2017 16:11:47 +0000 (16:11 +0000)]
[Support] Make BinaryStreamArray extractors stateless.
Instead, we now pass a context memeber through the extraction
process.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301556
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Zachary Turner [Thu, 27 Apr 2017 16:11:19 +0000 (16:11 +0000)]
Rename some PDB classes.
We have a lot of very similarly named classes related to
dealing with module debug info. This patch has NFC, it just
renames some classes to be more descriptive (albeit slightly
more to type). The mapping from old to new class names is as
follows:
Old | New
ModInfo | DbiModuleDescriptor
ModuleSubstream | ModuleDebugFragment
ModStream | ModuleDebugStream
With the corresponding Builder classes renamed accordingly.
Differential Revision: https://reviews.llvm.org/D32506
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301555
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Sanjay Patel [Thu, 27 Apr 2017 16:10:20 +0000 (16:10 +0000)]
[x86] add minimal tests for potential size-changing vsel transforms; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301554
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Sam Kolton [Thu, 27 Apr 2017 15:42:38 +0000 (15:42 +0000)]
[AMDGPU] DPP: add support for GFX9
Reviewers: artem.tamazov
Subscribers: arsenm, kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye
Differential Revision: https://reviews.llvm.org/D32588
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301551
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Krzysztof Parzyszek [Thu, 27 Apr 2017 14:38:21 +0000 (14:38 +0000)]
Fix typo and place comment close to its target
Patch by Wei-Ren Chen.
Differential Revision: https://reviews.llvm.org/D32594
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301546
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Aaron Ballman [Thu, 27 Apr 2017 14:33:01 +0000 (14:33 +0000)]
Fixing a malformed RST table to get the documentation bot back to green.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301545
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Simon Pilgrim [Thu, 27 Apr 2017 14:25:04 +0000 (14:25 +0000)]
Fixed assert message to correctly refer to MRMSrcReg4VOp3Frm/MRMSrcMeg4VOp3Frm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301544
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Zoran Jovanovic [Thu, 27 Apr 2017 13:10:48 +0000 (13:10 +0000)]
[mips][microMIPS] Adding code size reduction pass for MicroMIPS
Author: milena.vujosevic.janicic
Reviewers: sdardis
The code implements size reduction pass for MicroMIPS.
Load and store instructions are examined and transformed, if possible.
lw32 instruction is transformed into 16-bit instruction lwsp
sw32 instruction is transformed into 16-bit instruction swsp
Arithmetic instrcutions are examined and transformed, if possible.
addu32 instruction is transformed into 16-bit instruction addu16
subu32 instruction is transformed into 16-bit instruction subu16
Differential Revision: https://reviews.llvm.org/D15144
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301540
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Jonas Paulsson [Thu, 27 Apr 2017 11:01:18 +0000 (11:01 +0000)]
[SystemZ] Remove incorrect assert in SystemZTTIImpl
In getCmpSelInstrCost(), CondTy may actually be scalar while ValTy is a
vector when LoopVectorizer is the caller. Therefore the assert that CondTy
must be a vector type if ValTy is was wrong and is now removed.
Review: Ulrich Weigand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301533
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Diana Picus [Thu, 27 Apr 2017 10:23:30 +0000 (10:23 +0000)]
[ARM] GlobalISel: Fix extended stack operands
Fix a crash when trying to extend a value passed as a sign- or
zero-extended stack parameter. The cause of the crash was that we were
setting the size of the loaded value to 32 bits, and then tyring to
extend again to 32 bits.
This patch addresses the issue by also introducing a G_TRUNC after the
load. This will leave the unused bits to their original values set by
the caller, while being consistent about the types. For values that are
not extended, we just use a smaller load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301531
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