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Craig Topper [Wed, 4 Apr 2018 07:00:24 +0000 (07:00 +0000)]
[X86] Use the same predicate for the load for PMOVSXBQ and PMOVZXBQ.
These both use a 16-bit load, but one used loadi16_anyext and the other used extloadi32i16. The only difference between them is that loadi16_anyext checked that the load was at least 2 byte aligned and non-volatile. But the alignment doesn't matter here. Just use extloadi32i16 for both.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329154
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Craig Topper [Wed, 4 Apr 2018 07:00:19 +0000 (07:00 +0000)]
[X86] Use loadi16/loadi32 predicates in multiply patterns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329153
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Craig Topper [Wed, 4 Apr 2018 07:00:16 +0000 (07:00 +0000)]
[X86] Remove more dead code left over from the handling of i8/i16 UMUL_LOHI/SMUL_LOHI that is no longer needed. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329152
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Max Kazantsev [Wed, 4 Apr 2018 05:46:47 +0000 (05:46 +0000)]
[SCEV] Prove implications for SCEVUnknown Phis
This patch teaches SCEV how to prove implications for SCEVUnknown nodes that are Phis.
If we need to prove `Pred` for `LHS, RHS`, and `LHS` is a Phi with possible incoming values
`L1, L2, ..., LN`, then if we prove `Pred` for `(L1, RHS), (L2, RHS), ..., (LN, RHS)` then we can also
prove it for `(LHS, RHS)`. If both `LHS` and `RHS` are Phis from the same block, it is sufficient
to prove the predicate for values that come from the same predecessor block.
The typical case that it handles is that we sometimes need to prove that `Phi(Len, Len - 1) >= 0`
given that `Len > 0`. The new logic was added to `isImpliedViaOperations` and only uses it and
non-recursive reasoning to prove the facts we need, so it should not hurt compile time a lot.
Differential Revision: https://reviews.llvm.org/D44001
Reviewed By: anna
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329150
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Craig Topper [Wed, 4 Apr 2018 04:38:55 +0000 (04:38 +0000)]
[X86] Remove dead code for handling i8/i16 UMUL_LOHI/SMUL_LOHI from X86ISelDAGToDAG.cpp. NFC
These are promoted to i16/i32 multiplies by a DAG combine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329147
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Craig Topper [Wed, 4 Apr 2018 04:38:54 +0000 (04:38 +0000)]
[X86] Remove some code that was only needed when i1 was a legal type. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329146
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Craig Topper [Wed, 4 Apr 2018 03:47:17 +0000 (03:47 +0000)]
[SimplifyCFG] Teach merge conditional stores to handle cases where the PostBB has more than 2 predecessors by inserting a new block for the store.
Summary:
Currently merge conditional stores can't handle cases where PostBB (the block we need to move the store to) has more than 2 predecessors.
This patch removes that restriction by creating a new block with only the 2 predecessors we care about and an unconditional branch to the original block. This provides a place to put the store.
Reviewers: efriedma, jmolloy, ABataev
Reviewed By: efriedma
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39760
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329142
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Vlad Tsyrklevich [Wed, 4 Apr 2018 01:34:42 +0000 (01:34 +0000)]
Fix bad #include path in r329139
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329140
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Vlad Tsyrklevich [Wed, 4 Apr 2018 01:21:16 +0000 (01:21 +0000)]
Add the ShadowCallStack pass
Summary:
The ShadowCallStack pass instruments functions marked with the
shadowcallstack attribute. The instrumented prolog saves the return
address to [gs:offset] where offset is stored and updated in [gs:0].
The instrumented epilog loads/updates the return address from [gs:0]
and checks that it matches the return address on the stack before
returning.
Reviewers: pcc, vitalybuka
Reviewed By: pcc
Subscribers: cryptoad, eugenis, craig.topper, mgorny, llvm-commits, kcc
Differential Revision: https://reviews.llvm.org/D44802
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329139
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Nico Weber [Wed, 4 Apr 2018 00:50:22 +0000 (00:50 +0000)]
Minor no-op cmake file style fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329137
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Lang Hames [Wed, 4 Apr 2018 00:34:54 +0000 (00:34 +0000)]
Reapply r329133 with fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329136
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Lang Hames [Wed, 4 Apr 2018 00:12:12 +0000 (00:12 +0000)]
Revert r329133 "[RuntimeDyld][AArch64] Add some error pluming / generation..."
This broke a number of buildbots. Looking in to it now...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329135
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Jessica Paquette [Tue, 3 Apr 2018 23:32:41 +0000 (23:32 +0000)]
[MachineOutliner] Test for X86FI->getUsesRedZone() as well as Attribute::NoRedZone
This commit is similar to r329120, but uses the existing getUsesRedZone() function
in X86MachineFunctionInfo. This teaches the outliner to look at whether or not a
function *truly* uses a redzone instead of just the noredzone attribute on a
function.
Thus, after this commit, it's possible to outline from x86 without using
-mno-red-zone and still get outlining results.
This also adds a new test for the new redzone behaviour.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329134
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Lang Hames [Tue, 3 Apr 2018 23:19:20 +0000 (23:19 +0000)]
[RuntimeDyld][AArch64] Add some error pluming / generation to catch unhandled
relocation types on AArch64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329133
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Farhana Aleen [Tue, 3 Apr 2018 23:00:30 +0000 (23:00 +0000)]
[AMDGPU] performMinMaxCombine should not optimize patterns of vectors to min3/max3.
Summary: There are no packed instructions for min3 or max3. So, performMinMaxCombine should not optimize vectors of f16 to min3/max3.
Author: FarhanaAleen
Reviewed By: arsenm
Subscribers: llvm-commits, AMDGPU
Differential Revision: https://reviews.llvm.org/D45219
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329131
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Evandro Menezes [Tue, 3 Apr 2018 22:57:17 +0000 (22:57 +0000)]
[AArch64] Adjust the cost model for Exynos M3
Fix typo and simplify matching expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329130
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Ikhlas Ajbar [Tue, 3 Apr 2018 22:55:09 +0000 (22:55 +0000)]
[Hexagon] peel loops with runtime small trip counts
Move the check canPeel() to Hexagon Target before setting PeelCount.
Differential Revision: https://reviews.llvm.org/D44880
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329129
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Reid Kleckner [Tue, 3 Apr 2018 22:38:25 +0000 (22:38 +0000)]
'cat' command for internal shell - Support Python 3
LLVM Bug Id : 36449
Revision 328563 caused tests to fail under python 3.
This patch modified cat.py file to support both python 2 and 3.
This patch also fixes CRLF issues on Windows.
Patch by Chamal de Silva
Differential Revision: https://reviews.llvm.org/D45077
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329123
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Sanjay Patel [Tue, 3 Apr 2018 22:19:19 +0000 (22:19 +0000)]
[InstCombine] allow more fmul folds with 'reassoc'
The tests marked with 'FIXME' require loosening the check
in SimplifyAssociativeOrCommutative() to optimize completely;
that's still checking isFast() in Instruction::isAssociative().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329121
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Jessica Paquette [Tue, 3 Apr 2018 21:56:10 +0000 (21:56 +0000)]
[MachineOutliner] Keep track of fns that use a redzone in AArch64FunctionInfo
This patch adds a hasRedZone() function to AArch64MachineFunctionInfo. It
returns true if the function is known to use a redzone, false if it is known
to not use a redzone, and no value otherwise.
This removes the requirement to pass -mno-red-zone when outlining for AArch64.
https://reviews.llvm.org/D45189
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329120
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Farhana Aleen [Tue, 3 Apr 2018 21:51:45 +0000 (21:51 +0000)]
Revert "MSG"
This reverts commit
9a0ce889d1c39c74d69ecad5ce9c875155ae55de.
This was committed by mistake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329119
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Vlad Tsyrklevich [Tue, 3 Apr 2018 21:40:27 +0000 (21:40 +0000)]
Fix bad copy-and-paste in r329108
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329118
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Jessica Paquette [Tue, 3 Apr 2018 21:36:00 +0000 (21:36 +0000)]
[MachineOutliner][NFC] Make outlined functions have internal linkage
The linkage type on outlined functions was private before. This meant that if
you set a breakpoint in an outlined function, the debugger wouldn't be able to
give a sane name to the outlined function.
This commit changes the linkage type to internal and updates any tests that
relied on the prefixes on the names of outlined functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329116
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Farhana Aleen [Tue, 3 Apr 2018 21:20:39 +0000 (21:20 +0000)]
MSG
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329114
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Gor Nishanov [Tue, 3 Apr 2018 20:54:20 +0000 (20:54 +0000)]
[coroutines] Respect alloca alignment requirements when building coroutine frame
Summary:
If an alloca need to be stored in the coroutine frame and it has an alignment specified and the alignment does not match the natural alignment of the alloca type. Insert appropriate padding into the coroutine frame to make sure that it gets requested alignment.
For example for a packet type (which natural alignment is 1), but alloca alignment is 8, we may need to insert a padding field with required number of bytes to make sure it is properly aligned.
```
%PackedStruct = type <{ i64 }>
...
%data = alloca %PackedStruct, align 8
```
If the previous field in the coroutine frame had alignment 2, we would have [6 x i8] inserted before %PackedStruct in the coroutine frame:
```
%f.Frame = type { ..., i16, [6 x i8], %PackedStruct }
```
Reviewers: rnk, lewissbaker, modocache
Reviewed By: modocache
Subscribers: EricWF, llvm-commits
Differential Revision: https://reviews.llvm.org/D45221
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329112
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Florian Hahn [Tue, 3 Apr 2018 20:54:04 +0000 (20:54 +0000)]
[LoopInterchange] Add remark for calls preventing interchanging.
It also updates test/Transforms/LoopInterchange/call-instructions.ll
to use accesses where we can prove dependence after D35430.
Reviewers: sebpop, karthikthecool, blitz.opensource
Reviewed By: sebpop
Differential Revision: https://reviews.llvm.org/D45206
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329111
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Vlad Tsyrklevich [Tue, 3 Apr 2018 20:10:40 +0000 (20:10 +0000)]
Add the ShadowCallStack attribute
Summary:
Introduce the ShadowCallStack function attribute. It's added to
functions compiled with -fsanitize=shadow-call-stack in order to mark
functions to be instrumented by a ShadowCallStack pass to be submitted
in a separate change.
Reviewers: pcc, kcc, kubamracek
Reviewed By: pcc, kcc
Subscribers: cryptoad, mehdi_amini, javed.absar, llvm-commits, kcc
Differential Revision: https://reviews.llvm.org/D44800
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329108
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Aaron Smith [Tue, 3 Apr 2018 19:43:40 +0000 (19:43 +0000)]
[DebugInfoPDB] Add methods used to read function flags
The specific function flags are listed in CodeView::FunctionOption.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329105
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Aaron Smith [Tue, 3 Apr 2018 19:41:27 +0000 (19:41 +0000)]
[DebugInfoPDB] Add a few missing definitions to PDBTypes.h
The missing definitions are from cvconst.h shipped with DIA SDK.
Correct the url to MSDN for MemoryTypeEnum and set the underlying
type of PDB_StackFrameType and PDB_MemoryType to uint16_t.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329104
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Sanjay Patel [Tue, 3 Apr 2018 18:34:56 +0000 (18:34 +0000)]
[x86] add tests for convert-FP-to-integer with constants; NFC
We don't constant fold any of these, but we could...but if we
do, we must produce the right answer.
Unlike the IR fptosi instruction or its DAG node counterpart
ISD::FP_TO_SINT, these are not undef for an out-of-range input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329100
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David Blaikie [Tue, 3 Apr 2018 18:19:52 +0000 (18:19 +0000)]
Disable a test using environment variables that requires a real shell
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329096
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Jun Bum Lim [Tue, 3 Apr 2018 18:17:34 +0000 (18:17 +0000)]
[CodeGen]Add NoVRegs property on PostRASink and ShrinkWrap
Summary:
This change declare that PostRAMachineSinking and ShrinkWrap require NoVRegs
property, so now the MachineFunctionPass can enforce this check.
These passes are disabled in NVPTX & WebAssembly.
Reviewers: dschuff, jlebar, tra, jgravelle-google, MatzeB, sebpop, thegameg, mcrosier
Reviewed By: dschuff, thegameg
Subscribers: jholewinski, jfb, sbc100, aheejin, sunfish, llvm-commits
Differential Revision: https://reviews.llvm.org/D45183
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329095
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Jonas Devlieghere [Tue, 3 Apr 2018 18:01:18 +0000 (18:01 +0000)]
[dsymutil] Apply recursion workaround for threading
The DwarfLinker can have some very deep recursion that can max out the
(significantly smaller) stack when using threads. We don't want this
limitation when we only have a single thread. We already have this
workaround for the architecture-related threading. This patch applies
the same workaround to the parallel analysis and cloning.
Differential revision: https://reviews.llvm.org/D45172
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329093
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Alexey Bataev [Tue, 3 Apr 2018 17:48:14 +0000 (17:48 +0000)]
[SLP] Fixed formatting, NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329091
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Alexey Bataev [Tue, 3 Apr 2018 17:28:55 +0000 (17:28 +0000)]
[DEBUGINFO] Add option that allows to disable emission of flags in .loc directives.
Summary:
Some targets do not support extended format of .loc directive and
support only simple format: .loc <FileID> <Line> <Column>. Patch adds
MCAsmInfo flag and option that allows emit .loc directive without
additional flags.
Reviewers: echristo
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D45184
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329089
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Daniel Neilson [Tue, 3 Apr 2018 17:26:20 +0000 (17:26 +0000)]
[InstCombine] Fold compare of int constant against a splatted vector of ints
Summary:
Folding patterns like:
%vec = shufflevector <4 x i8> %insvec, <4 x i8> undef, <4 x i32> zeroinitializer
%cast = bitcast <4 x i8> %vec to i32
%cond = icmp eq i32 %cast, 0
into:
%ext = extractelement <4 x i8> %insvec, i32 0
%cond = icmp eq i32 %ext, 0
Combined with existing rules, this allows us to fold patterns like:
%insvec = insertelement <4 x i8> undef, i8 %val, i32 0
%vec = shufflevector <4 x i8> %insvec, <4 x i8> undef, <4 x i32> zeroinitializer
%cast = bitcast <4 x i8> %vec to i32
%cond = icmp eq i32 %cast, 0
into:
%cond = icmp eq i8 %val, 0
When we construct a splat vector via a shuffle, and bitcast the vector into an integer type for comparison against an integer constant. Then we can simplify the the comparison to compare the splatted value against the integer constant.
Reviewers: spatel, anna, mkazantsev
Reviewed By: spatel
Subscribers: efriedma, rengolin, llvm-commits
Differential Revision: https://reviews.llvm.org/D44997
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329087
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Alexey Bataev [Tue, 3 Apr 2018 17:14:47 +0000 (17:14 +0000)]
[SLP] Fix PR36481: vectorize reassociated instructions.
Summary:
If the load/extractelement/extractvalue instructions are not originally
consecutive, the SLP vectorizer is unable to vectorize them. Patch
allows reordering of such instructions.
Patch does not support reordering of the repeated instruction, this must
be handled in the separate patch.
Reviewers: RKSimon, spatel, hfinkel, mkuper, Ayal, ashahid
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D43776
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329085
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Eric Christopher [Tue, 3 Apr 2018 17:07:05 +0000 (17:07 +0000)]
Remove a stale comment cut and pasted from another file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329084
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Andrea Di Biagio [Tue, 3 Apr 2018 16:46:23 +0000 (16:46 +0000)]
[llvm-mca] Move the logic that prints register file statistics to its own view. NFCI
Before this patch, the "BackendStatistics" view was responsible for printing the
register file usage (as well as many other statistics).
Now users can enable register file usage statistics using the command line flag
`-register-file-stats`. By default, the tool doesn't print register file
statistics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329083
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Alexey Bataev [Tue, 3 Apr 2018 16:40:33 +0000 (16:40 +0000)]
Recommit "[SLP] Fix issues with debug output in the SLP vectorizer."
The primary issue here is that using NDEBUG alone isn't enough to guard
debug printing -- instead the DEBUG() macro needs to be used so that the
specific pass debug logging check is employed. Without this, every
asserts-enabled build was printing out information when it hit this.
I also fixed another place where we had multiple statements in a DEBUG
macro to use {}s to be a bit cleaner. And I fixed a place that used
errs() rather than dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329082
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Florian Hahn [Tue, 3 Apr 2018 16:37:58 +0000 (16:37 +0000)]
[LoopInterchange] Update tests so DA can handle access after D35430.
I have taken the opportunity to simplify some tests slightly and move
parts around.
It also brings back a few IR checks for interchangable loops.
Reviewers: karthikthecool, sebpop, grosser
Reviewed By: sebpop
Differential Revision: https://reviews.llvm.org/D45207
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329081
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Alexey Bataev [Tue, 3 Apr 2018 16:31:26 +0000 (16:31 +0000)]
[SLP] Added tests for checks of reordering of the repeated instructions,
NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329080
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Krzysztof Parzyszek [Tue, 3 Apr 2018 16:06:36 +0000 (16:06 +0000)]
[Hexagon] Remove -mhvx-double and the corresponding subtarget feature
Specifying the HVX vector length should be done via the -mhvx-length
option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329079
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Krzysztof Parzyszek [Tue, 3 Apr 2018 16:05:20 +0000 (16:05 +0000)]
[Hexagon] Remove unneeded attributes from lit test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329078
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Puyan Lotfi [Tue, 3 Apr 2018 15:53:49 +0000 (15:53 +0000)]
Adding optional Name parameter to createVirtualRegister and createGenericVirtualRegister.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329076
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Andrea Di Biagio [Tue, 3 Apr 2018 15:36:15 +0000 (15:36 +0000)]
[llvm-mca] Remove redundant include from BackendStatistics.h. NFC
Also use llvm::DenseMap for Histograms (instead of std::map).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329074
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Benjamin Kramer [Tue, 3 Apr 2018 14:40:33 +0000 (14:40 +0000)]
Revert "[SLP] Fix PR36481: vectorize reassociated instructions."
This reverts commit r328980 and r329046. Makes the vectorizer crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329071
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Andrea Di Biagio [Tue, 3 Apr 2018 13:52:26 +0000 (13:52 +0000)]
[MC] Fix -Wmissing-field-initializer warning after r329067.
This should fix the problem reported by the lld buildbots:
- Builder lld-x86_64-darwin13, Build #19782
- Builder lld-perf-testsuite, Build #1419
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329068
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Andrea Di Biagio [Tue, 3 Apr 2018 13:36:24 +0000 (13:36 +0000)]
[MC][Tablegen] Allow the definition of processor register files in the scheduling model for llvm-mca
This patch allows the description of register files in processor scheduling
models. This addresses PR36662.
A new tablegen class named 'RegisterFile' has been added to TargetSchedule.td.
Targets can optionally describe register files for their processors using that
class. In particular, class RegisterFile allows to specify:
- The total number of physical registers.
- Which target registers are accessible through the register file.
- The cost of allocating a register at register renaming stage.
Example (from this patch - see file X86/X86ScheduleBtVer2.td)
def FpuPRF : RegisterFile<72, [VR64, VR128, VR256], [1, 1, 2]>
Here, FpuPRF describes a register file for MMX/XMM/YMM registers. On Jaguar
(btver2), a YMM register definition consumes 2 physical registers, while MMX/XMM
register definitions only cost 1 physical register.
The syntax allows to specify an empty set of register classes. An empty set of
register classes means: this register file models all the registers specified by
the Target. For each register class, users can specify an optional register
cost. By default, register costs default to 1. A value of 0 for the number of
physical registers means: "this register file has an unbounded number of
physical registers".
This patch is structured in two parts.
* Part 1 - MC/Tablegen *
A first part adds the tablegen definition of RegisterFile, and teaches the
SubtargetEmitter how to emit information related to register files.
Information about register files is accessible through an instance of
MCExtraProcessorInfo.
The idea behind this design is to logically partition the processor description
which is only used by external tools (like llvm-mca) from the processor
information used by the llvm machine schedulers.
I think that this design would make easier for targets to get rid of the extra
processor information if they don't want it.
* Part 2 - llvm-mca related *
The second part of this patch is related to changes to llvm-mca.
The main differences are:
1) class RegisterFile now needs to take into account the "cost of a register"
when allocating physical registers at register renaming stage.
2) Point 1. triggered a minor refactoring which lef to the removal of the
"maximum 32 register files" restriction.
3) The BackendStatistics view has been updated so that we can print out extra
details related to each register file implemented by the processor.
The effect of point 3. is also visible in tests register-files-[1..5].s.
Differential Revision: https://reviews.llvm.org/D44980
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329067
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Sanjay Patel [Tue, 3 Apr 2018 13:05:20 +0000 (13:05 +0000)]
[LangRef] fix description and examples of fptrunc
As noted in PR36966:
https://bugs.llvm.org/show_bug.cgi?id=36966
The old description doesn't match what we do in code,
so this just fixes the documentation to avoid confusion.
Differential Revision: https://reviews.llvm.org/D45190
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329065
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Hiroshi Inoue [Tue, 3 Apr 2018 12:49:42 +0000 (12:49 +0000)]
[PowerPC] reorder entries in P9InstrResources.td in alphabetical order; NFC
Reorder entries added in my previous commit (rL328969) to keep alphabetical order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329064
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Chandler Carruth [Tue, 3 Apr 2018 10:28:56 +0000 (10:28 +0000)]
[x86] Fix a pretty obvious think-o with my asm scrubbing. You have to in
fact use regular expression syntax to use regular expressions.
Should restore the bots. Sorry for the noise on this test.
Thanks to Philip for spotting the bug!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329057
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Chandler Carruth [Tue, 3 Apr 2018 10:04:37 +0000 (10:04 +0000)]
[x86] Clean up and enhance a test around eflags copying.
This adds the basic test cases from all the EFLAGS bugs in more direct
forms. It also switches to generated check lines, and includes both
32-bit and 64-bit variations.
No functionality changing here, just setting things up to have a nice
clean asm diff in my EFLAGS patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329056
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Chandler Carruth [Tue, 3 Apr 2018 09:57:05 +0000 (09:57 +0000)]
[x86] Extend my goofy SP offset scrubbing for llc test cases to actually
do explicit scrubbing of the offsets of stack spills and reloads.
You can always turn this off in order to test specific stack slot usage.
We were already hiding most of this, but the new logic hides it more
generically. Notably, we should effectively hide stack slot churn in
functions that have a frame pointer now, and should also hide it when
changing a function from stack pointer to frame pointer. That transition
already changes enough to be clearly noticed in the test case diff,
showing *every* spill and reload is really noisy without benefit. See
the test case I ran this on as a classic example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329055
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Alexander Potapenko [Tue, 3 Apr 2018 09:50:06 +0000 (09:50 +0000)]
MSan: introduce the conservative assembly handling mode.
The default assembly handling mode may introduce false positives in the
cases when MSan doesn't understand that the assembly call initializes
the memory pointed to by one of its arguments.
We introduce the conservative mode, which initializes the first
|sizeof(type)| bytes for every |type*| pointer passed into the
assembly statement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329054
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Serguei Katkov [Tue, 3 Apr 2018 07:29:00 +0000 (07:29 +0000)]
[SCEV] Fix PR36974.
The patch changes the usage of dominate to properlyDominate
to satisfy the condition !(a < a) while using std::max.
It is actually NFC due to set data structure is used to keep
the Loops and no two identical loops can be in collection.
So in reality there is no difference between usage of
dominate and properlyDominate in this particular case.
However it might be changed so it is better to fix it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329051
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Eric Christopher [Tue, 3 Apr 2018 07:01:33 +0000 (07:01 +0000)]
Add a wrapper around llvm-objdump to look for indirect calls/jmps in x86 assembly.
Useful when looking for indirect calls/jmps the need mitigation
via retpoline or other mitigations for Spectre v2.
Feedback, extension, additional patches welcome.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329050
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Craig Topper [Tue, 3 Apr 2018 06:37:04 +0000 (06:37 +0000)]
[X86] Reduce number of OpPrefix bits in TSFlags to 2. NFCI
TSFlag doesn't need to disambiguate NoPrfx from PS. So shift the encodings so PS is NoPrfx|0x4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329049
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Craig Topper [Tue, 3 Apr 2018 06:37:01 +0000 (06:37 +0000)]
[X86][TableGen] Add a missing error check to make sure EVEX instructions use one PS/PD/XS/XD prefixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329048
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Max Kazantsev [Tue, 3 Apr 2018 05:57:19 +0000 (05:57 +0000)]
[SCEV] Make computeExitLimit more simple and more powerful
Current implementation of `computeExitLimit` has a big piece of code
the only purpose of which is to prove that after the execution of this
block the latch will be executed. What it currently checks is actually a
subset of situations where the exiting block dominates latch.
This patch replaces all these checks for simple particular cases with
domination check over loop's latch which is the only necessary condition
of taking the exiting block into consideration. This change allows to
calculate exact loop taken count for simple loops like
for (int i = 0; i < 100; i++) {
if (cond) {...} else {...}
if (i > 50) break;
. . .
}
Differential Revision: https://reviews.llvm.org/D44677
Reviewed By: efriedma
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329047
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Chandler Carruth [Tue, 3 Apr 2018 05:27:28 +0000 (05:27 +0000)]
[SLP] Fix issues with debug output in the SLP vectorizer.
The primary issue here is that using NDEBUG alone isn't enough to guard
debug printing -- instead the DEBUG() macro needs to be used so that the
specific pass debug logging check is employed. Without this, every
asserts-enabled build was printing out information when it hit this.
I also fixed another place where we had multiple statements in a DEBUG
macro to use {}s to be a bit cleaner. And I fixed a place that used
`errs()` rather than `dbgs()`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329046
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Craig Topper [Tue, 3 Apr 2018 05:10:12 +0000 (05:10 +0000)]
[TableGen] Use llvm::cast instead of static_cast so that the cast will be checked. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329045
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Yonghong Song [Tue, 3 Apr 2018 03:56:37 +0000 (03:56 +0000)]
bpf: fix incorrect SELECT_CC lowering
Commit
37962a331c77 ("bpf: Improve expanding logic in LowerSELECT_CC")
intended to improve code quality for certain jmp conditions. The
commit, however, has a couple of issues:
(1). In code, just swap is not enough, ConditionalCode CC
should also be swapped, otherwise incorrect code will
be generated.
(2). The ConditionalCode swap should be subject to
getHasJmpExt(). If getHasJmpExt() is False, certain
conditional codes will not be supported and swap
may generate incorrect code.
The original goal for this patch is to optimize jmp operations
which does not have JmpExt turned on. If JmpExt is on,
better code could be generated. For example, the test
select_ri.ll is introduced to demonstrate the optimization.
The same result can be achieved with -mcpu=v2 flag.
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329043
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Ikhlas Ajbar [Tue, 3 Apr 2018 03:39:43 +0000 (03:39 +0000)]
peel loops with runtime small trip counts
For Hexagon, peeling loops with small runtime trip count is beneficial for our
benchmarks. We set PeelCount in HexagonTargetInfo.cpp and we use PeelCount set
by the target for computing the desired peel count.
Differential Revision: https://reviews.llvm.org/D44880
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329042
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Nico Weber [Tue, 3 Apr 2018 02:37:49 +0000 (02:37 +0000)]
Remove utils/makellvm; it doesn't look like it works with cmake builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329041
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Chandler Carruth [Tue, 3 Apr 2018 02:19:05 +0000 (02:19 +0000)]
[x86] Tidy up test case, generate check lines with script. NFC.
Just adds basic block labels and tidies up where comments go in the test
case and then generates fresh CHECK lines with the script. This way, the
check lines are much easier to maintain. They were already close to this
but not quite there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329040
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Aaron Smith [Tue, 3 Apr 2018 00:22:12 +0000 (00:22 +0000)]
[lit] Prefer opening files with open (Python 2) rather than io.open which requires io.
Only rely on Python 3 (io.open) when necessary. This puts TestRunnyer.py closer to how it behaved
before the changes introduced in D43165 and silences a few Windows build bot failures.
Thanks to Stella Stamenova for the patch!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329037
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Haicheng Wu [Tue, 3 Apr 2018 00:05:10 +0000 (00:05 +0000)]
[SLP] Distinguish "demanded and shrinkable" from "demanded and not shrinkable" values when determining the minimum bitwidth
We use two approaches for determining the minimum bitwidth.
* Demanded bits
* Value tracking
If demanded bits doesn't result in a narrower type, we then try value tracking.
We need this if we want to root SLP trees with the indices of getelementptr
instructions since all the bits of the indices are demanded.
But there is a missing piece though. We need to be able to distinguish "demanded
and shrinkable" from "demanded and not shrinkable". For example, the bits of %i
in
%i = sext i32 %e1 to i64
%gep = getelementptr inbounds i64, i64* %p, i64 %i
are demanded, but we can shrink %i's type to i32 because it won't change the
result of the getelementptr. On the other hand, in
%tmp15 = sext i32 %tmp14 to i64
%tmp16 = insertvalue { i64, i64 } undef, i64 %tmp15, 0
it doesn't make sense to shrink %tmp15 and we can skip the value tracking.
Ideas are from Matthew Simpson!
Differential Revision: https://reviews.llvm.org/D44868
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329035
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Brian Gesiak [Mon, 2 Apr 2018 23:39:40 +0000 (23:39 +0000)]
[Coroutines] Avoid assert splitting hidden coros
Summary:
When attempting to split a coroutine with 'hidden' visibility (for
example, a C++ coroutine that is inlined when compiled with the option
'-fvisibility-inlines-hidden'), LLVM would hit an assertion in
include/llvm/IR/GlobalValue.h:240: "local linkage requires default
visibility". The issue is that the visibility is copied from the source
of the function split in the `CloneFunctionInto` function, but the linkage
is not. To fix, create the new function first with external linkage,
then copy the linkage from the original function *after* `CloneFunctionInto`
is called.
Since `GlobalValue::setLinkage` in turn calls `maybeSetDsoLocal`, the
explicit call to `setDSOLocal` can be removed in CoroSplit.cpp.
Test Plan: check-llvm
Reviewers: GorNishanov, lewissbaker, EricWF, majnemer, rnk
Reviewed By: rnk
Subscribers: llvm-commits, eric_niebler
Differential Revision: https://reviews.llvm.org/D44185
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329033
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Rafael Espindola [Mon, 2 Apr 2018 23:20:30 +0000 (23:20 +0000)]
Align stubs for external and common global variables to pointer size.
This patch fixes PR36885: clang++ generates unaligned stub symbol
holding a pointer.
Patch by Rahul Chaudhry!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329030
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Eric Christopher [Mon, 2 Apr 2018 23:17:55 +0000 (23:17 +0000)]
Remove llvm-mcmarkup.
It was never used and I've checked with the original authors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329029
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Reid Kleckner [Mon, 2 Apr 2018 22:49:44 +0000 (22:49 +0000)]
[InstCombine] Don't strip function type casts from musttail calls
Summary:
The cast simplifications that instcombine does here do not make any
attempt to obey the verifier rules for musttail calls. Therefore we have
to disable them.
Reviewers: efriedma, majnemer, pcc
Subscribers: hiraditya, llvm-commits
Differential Revision: https://reviews.llvm.org/D45186
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329027
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Aaron Smith [Mon, 2 Apr 2018 22:34:35 +0000 (22:34 +0000)]
[lit] One more try at fixing TestRunner.py for D43165
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329026
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Reid Kleckner [Mon, 2 Apr 2018 22:19:42 +0000 (22:19 +0000)]
[lit] Attempt to fix builtin diff code for Python 2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329024
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Aaron Smith [Mon, 2 Apr 2018 22:08:56 +0000 (22:08 +0000)]
[lit] Fix problem in how Python versions open files with different encodings
Reapply D43165 which was reverted because of different versions of python failing.
The one line fix for the different python versions was commited at the same time
that D43165 was reverted. If this change is giving you issues then get in touch
with your python version and we will fix it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329022
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Harlan Haskins [Mon, 2 Apr 2018 21:45:35 +0000 (21:45 +0000)]
Fix Go IR test for changes in DIBuilder API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329021
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Aaron Smith [Mon, 2 Apr 2018 21:44:51 +0000 (21:44 +0000)]
[lit] Use io.open to compare two files since it supports different encodings while older versions of open do not
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329020
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Lang Hames [Mon, 2 Apr 2018 21:39:39 +0000 (21:39 +0000)]
[ORC] Add a debugging check to catch dangling references to SymbolStringPools.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329019
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Lang Hames [Mon, 2 Apr 2018 21:34:48 +0000 (21:34 +0000)]
[ORC] Fix a think-o: ExecutionSession should create a SymbolStringPool if none
is passed in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329018
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Reid Kleckner [Mon, 2 Apr 2018 21:33:46 +0000 (21:33 +0000)]
Revert r329012 "[lit] Fix problem in how Python versions open files with different encodings"
This doesn't work with Python 2. See this build-in-progress:
http://lab.llvm.org:8011/builders/clang-x86-windows-msvc2015/builds/11105
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329017
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Reid Kleckner [Mon, 2 Apr 2018 21:23:16 +0000 (21:23 +0000)]
Treat inlining a notail call as a regular, non-tail call
Otherwise, we end up inlining a musttail call into a non-tail position,
which breaks verifier invariants.
Fixes PR31014
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329015
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Lang Hames [Mon, 2 Apr 2018 20:57:56 +0000 (20:57 +0000)]
[ORC] Create a new SymbolStringPool by default in ExecutionSession constructor.
This makes the common case of constructing an ExecutionSession tidier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329013
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Aaron Smith [Mon, 2 Apr 2018 20:57:06 +0000 (20:57 +0000)]
[lit] Fix problem in how Python versions open files with different encodings
Summary:
This issue was found when running the clang unit test on Windows. Python 3.x cannot open some of the files that the tests are using with a simple open because of their encoding. Python 2.7+ and Python 3.x both support io.open which allows for an encoding to be specified.
This change will determine whether two files being compared should be opened (and then compared) as text or binary and whether to use utf-8 or the default encoding before proceeding with a line-by-line comparison.
Patch by Stella Stamenova!
Reviewers: zturner, llvm-commits, rnk, MaggieYi
Reviewed By: zturner
Subscribers: asmith, MatzeB, stella.stamenova, delcypher, llvm-commits
Differential Revision: https://reviews.llvm.org/D43165
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329012
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Sanjay Patel [Mon, 2 Apr 2018 20:37:40 +0000 (20:37 +0000)]
[InstCombine] add folds for icmp + sub (PR36969)
(A - B) >u A --> A <u B
C <u (C - D) --> C <u D
https://rise4fun.com/Alive/e7j
Name: ugt
%sub = sub i8 %x, %y
%cmp = icmp ugt i8 %sub, %x
=>
%cmp = icmp ult i8 %x, %y
Name: ult
%sub = sub i8 %x, %y
%cmp = icmp ult i8 %x, %sub
=>
%cmp = icmp ult i8 %x, %y
This should fix:
https://bugs.llvm.org/show_bug.cgi?id=36969
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329011
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Sanjay Patel [Mon, 2 Apr 2018 20:23:54 +0000 (20:23 +0000)]
[InstCombine] add tests for icmp (sub x, y), x (PR36969); NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329010
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Douglas Yung [Mon, 2 Apr 2018 20:05:05 +0000 (20:05 +0000)]
Another attempt to fix papertrail-warnings.test on Windows bots by making expected message less case sensitive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329008
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Harlan Haskins [Mon, 2 Apr 2018 19:11:44 +0000 (19:11 +0000)]
Fix header mismatch in DIBuilder Type APIs
Some of the headers changed slightly, and the accompanying
implementation didn't change. This caused a silent failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329003
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Zachary Turner [Mon, 2 Apr 2018 18:35:21 +0000 (18:35 +0000)]
[llvm-pdbutil] Add an export subcommand.
This command can dump the binary contents of a stream to a file.
This is useful when you want to do side-by-side comparisons of
a specific stream from two PDBs to examine the differences between
them. You can export both of them to a file, then open them up
side by side in a hex editor (for example), so as to eliminate any
differences that might arise from the contents being on different
blocks in the PDB.
In subsequent patches I plan to improve the "explain" subcommand
so that you can explain the contents of a binary file that isn't
necessarily a full PDB, but one of these dumped streams, by telling
the subcommand how to interpret the contents.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329002
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Nico Weber [Mon, 2 Apr 2018 18:13:05 +0000 (18:13 +0000)]
Remove unused PACKAGE_TARNAME; looks like a remnant of the old autoconf build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328998
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Nico Weber [Mon, 2 Apr 2018 17:52:19 +0000 (17:52 +0000)]
Remove some unused cmake standard library includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328996
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Nico Weber [Mon, 2 Apr 2018 17:45:47 +0000 (17:45 +0000)]
Remove more feature test macros that became unused after r328989.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328995
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Nico Weber [Mon, 2 Apr 2018 17:32:48 +0000 (17:32 +0000)]
Remove HAVE_LIBPSAPI, HAVE_SHELL32.
These used to be set in the old autoconf build, but the cmake build has had a
"TODO: actually check for these" comment since it was checked in, and they
were set to 1 on mingw unconditionally. It seems safe to say that they always
exist under mingw, so just remove them and assume they're set exactly when on
mingw (with msvc, we use `pragma comment` instead of linking these via flags).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328992
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Rong Xu [Mon, 2 Apr 2018 17:27:38 +0000 (17:27 +0000)]
[DeadArgumentElim] Clone function level metadatas
Some Function level metadatas, such as function entry count, are not cloned in
DeadArgumentElim. This happens a lot in lto/thinlto because of DeadArgumentElim
after internalization.
This patch clones the metadatas in the original function to the new function.
Differential Revision: https://reviews.llvm.org/D44127
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328991
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Nico Weber [Mon, 2 Apr 2018 17:17:29 +0000 (17:17 +0000)]
Remove HAVE_DIRENT_H.
The autoconf manual: "This macro is obsolescent, as all current systems with
directory libraries have <dirent.h>. New programs need not use this macro."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328989
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Dmitry Preobrazhensky [Mon, 2 Apr 2018 17:09:20 +0000 (17:09 +0000)]
[AMDGPU][MC][GFX9] Added instructions v_cvt_norm_*16_f16, v_sat_pk_u8_i16
See bug 36847: https://bugs.llvm.org/show_bug.cgi?id=36847
Differential Revision: https://reviews.llvm.org/D45097
Reviewers: artem.tamazov, arsenm, timcorringham
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328988
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Gor Nishanov [Mon, 2 Apr 2018 16:55:12 +0000 (16:55 +0000)]
[coroutines] Add support for llvm.coro.noop intrinsics
Summary:
A recent addition to Coroutines TS (https://wg21.link/p0913) adds a pre-defined coroutine noop_coroutine that does nothing.
To implement this feature, we implemented an llvm.coro.noop intrinsic that returns a coroutine handle to a coroutine that does nothing when resumed or destroyed.
Reviewers: EricWF, modocache, rnk, lewissbaker
Reviewed By: modocache
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D45114
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328986
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Dmitry Preobrazhensky [Mon, 2 Apr 2018 16:10:25 +0000 (16:10 +0000)]
[AMDGPU][MC][GFX9] Added s_atomic_* and s_buffer_atomic_* instructions
Fixed a bug which caused Tablegen crash.
See bug 36837: https://bugs.llvm.org/show_bug.cgi?id=36837
Differential Revision: https://reviews.llvm.org/D45085
Reviewers: artem.tamazov, arsenm, timcorringham
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328983
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Krzysztof Parzyszek [Mon, 2 Apr 2018 15:06:55 +0000 (15:06 +0000)]
[Hexagon] Clean up some code in HexagonAsmPrinter, NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328981
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Alexey Bataev [Mon, 2 Apr 2018 14:51:37 +0000 (14:51 +0000)]
[SLP] Fix PR36481: vectorize reassociated instructions.
Summary:
If the load/extractelement/extractvalue instructions are not originally
consecutive, the SLP vectorizer is unable to vectorize them. Patch
allows reordering of such instructions.
Reviewers: RKSimon, spatel, hfinkel, mkuper, Ayal, ashahid
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D43776
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328980
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Nico Weber [Mon, 2 Apr 2018 14:36:34 +0000 (14:36 +0000)]
Remove stro(u?)ll() config checks. Those were needed pre-MSVC2013, but we require 2015 nowadays.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328979
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