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Davide Italiano [Wed, 10 Aug 2016 06:33:32 +0000 (06:33 +0000)]
[SimplifyLibCalls] Restore the old behaviour, emit a libcall.
Hal pointed out that the semantic of our intrinsic and the libc
call are slightly different. Add a comment while I'm here to
explain why we can't emit an intrinsic. Thanks Hal!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278200
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Easwaran Raman [Wed, 10 Aug 2016 00:48:04 +0000 (00:48 +0000)]
Do not directly use inline threshold cl options in cost analysis.
This adds an InlineParams struct which is populated from the command line options by getInlineParams and passed to getInlineCost for the call analyzer to use.
Differential revision: https://reviews.llvm.org/D22120
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278189
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Adam Nemet [Wed, 10 Aug 2016 00:44:56 +0000 (00:44 +0000)]
[OptDiag] Add class Doxygen comment
This was requested in D22694.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278186
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Adam Nemet [Wed, 10 Aug 2016 00:44:44 +0000 (00:44 +0000)]
[Inliner,OptDiag] Add hotness attribute to opt diagnostics
Summary:
The inliner not being a function pass requires the work-around of
generating the OptimizationRemarkEmitter and in turn BFI on demand.
This will go away after the new PM is ready.
BFI is only computed inside ORE if the user has requested hotness
information for optimization diagnostitics (-pass-remark-with-hotness at
the 'opt' level). Thus there is no additional overhead without the
flag.
Reviewers: hfinkel, davidxl, eraman
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D22694
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278185
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Kostya Serebryany [Tue, 9 Aug 2016 23:57:04 +0000 (23:57 +0000)]
[scudo] Documentation update for Scudo, from https://reviews.llvm.org/D23332
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278180
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Vedant Kumar [Tue, 9 Aug 2016 23:14:37 +0000 (23:14 +0000)]
[IR] Remove some unused #includes (NFC)
I needed a reader-writer lock for a downstream project and noticed that
llvm has one. Function.cpp is the only file in-tree that refers to it.
To anyone reading this: are you using RWMutex in out-of-tree code? Maybe
it's not worth keeping around any more...
Since we're not actually using RWMutex *here*, remove the #include (and
a few other stale headers while we're at it).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278178
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Zachary Turner [Tue, 9 Aug 2016 23:03:55 +0000 (23:03 +0000)]
Make LLVM_PRETTY_FUNCTION support __func__.
In case there are compilers that support neither __FUNCSIG__ or
__PRETTY_FUNCTION__, we fall back to __func__ as a last resort,
which should be guaranteed by C++11 and C99.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278176
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Tim Northover [Tue, 9 Aug 2016 23:01:30 +0000 (23:01 +0000)]
GlobalISel: support 'undef' constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278174
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Michael Zolotukhin [Tue, 9 Aug 2016 22:44:56 +0000 (22:44 +0000)]
[LoopSimplify] Rebuild LCSSA for the inner loop after separating nested loops.
Summary:
This hopefully fixes PR28825. The problem now was that a value from the
original loop was used in a subloop, which became a sibling after separation.
While a subloop doesn't need an lcssa phi node, a sibling does, and that's
where we broke LCSSA. The most natural way to fix this now is to simply call
formLCSSA on the original loop: it'll do what we've been doing before plus
it'll cover situations described above.
I think we don't need to run formLCSSARecursively here, and we have an assert
to verify this (I've tried testing it on LLVM testsuite + SPECs). I'd be happy
to be corrected here though.
I also changed a run line in the test from '-lcssa -loop-unroll' to
'-lcssa -loop-simplify -indvars', because it exercises LCSSA
preservation to the same extent, but also makes less unrelated
transformation on the CFG, which makes it easier to verify.
Reviewers: chandlerc, sanjoy, silvas
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23288
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278173
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Andrew Kaylor [Tue, 9 Aug 2016 22:41:35 +0000 (22:41 +0000)]
[ValueTracking] Improve ValueTracking on left shift with nsw flag
Patch by Li Huang
Differential Revison: https://reviews.llvm.org/D23296
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278172
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Derek Schuff [Tue, 9 Aug 2016 22:37:00 +0000 (22:37 +0000)]
[WebAssembly] Add -emscripten-cxx-exceptions-whitelist option
This patch adds -emscripten-cxx-exceptions-whitelist option to
WebAssemblyLowerEmscriptenExceptions pass. This options is the list of
function names in which Emscripten-style exception handling is enabled.
This is to support emscripten's EXCEPTION_CATCHING_WHITELIST which
exists because of the performance impact of emscripten's non-zero-cost
EH method.
Patch by Heejin Ahn
Differential Revision: https://reviews.llvm.org/D23292
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278171
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Zachary Turner [Tue, 9 Aug 2016 22:03:45 +0000 (22:03 +0000)]
Add a platform independent version of __PRETTY_FUNCTION__.
MSVC doesn't have this, it only has __FUNCSIG__. So this adds
a new macro called LLVM_PRETTY_FUNCTION which evaluates to the
right thing on any platform.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278170
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Tim Northover [Tue, 9 Aug 2016 21:28:04 +0000 (21:28 +0000)]
GlobalISel: first translation support for Constants.
For now put them all in the entry block. This should be correct but may give
poor runtime performance. Hopefully MachineSinking combined with
isReMaterializable can solve those issues, but if not the interface is sound
enough to support alternatives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278168
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Sanjay Patel [Tue, 9 Aug 2016 21:07:17 +0000 (21:07 +0000)]
add test cases for missed vselect optimizations (PR28895)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278165
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Lang Hames [Tue, 9 Aug 2016 20:48:22 +0000 (20:48 +0000)]
[ExecutionEngine] Disable weak symbol tests for COFF.
COFF doesn't support weak linkage on functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278162
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Wei Mi [Tue, 9 Aug 2016 20:40:03 +0000 (20:40 +0000)]
Fix the runtime error caused by "Use ValueOffsetPair to enhance value reuse during SCEV expansion".
The patch is to fix the bug in PR28705. It was caused by setting wrong return
value for SCEVExpander::findExistingExpansion. The return values of findExistingExpansion
have different meanings when the function is used in different ways so it is easy to make
mistake. The fix creates two new interfaces to replace SCEVExpander::findExistingExpansion,
and specifies where each interface is expected to be used.
Differential Revision: https://reviews.llvm.org/D22942
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278161
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Wei Mi [Tue, 9 Aug 2016 20:37:50 +0000 (20:37 +0000)]
Recommit "Use ValueOffsetPair to enhance value reuse during SCEV expansion".
The fix for PR28705 will be committed consecutively.
In D12090, the ExprValueMap was added to reuse existing value during SCEV expansion.
However, const folding and sext/zext distribution can make the reuse still difficult.
A simplified case is: suppose we know S1 expands to V1 in ExprValueMap, and
S1 = S2 + C_a
S3 = S2 + C_b
where C_a and C_b are different SCEVConstants. Then we'd like to expand S3 as
V1 - C_a + C_b instead of expanding S2 literally. It is helpful when S2 is a
complex SCEV expr and S2 has no entry in ExprValueMap, which is usually caused
by the fact that S3 is generated from S1 after const folding.
In order to do that, we represent ExprValueMap as a mapping from SCEV to
ValueOffsetPair. We will save both S1->{V1, 0} and S2->{V1, C_a} into the
ExprValueMap when we create SCEV for V1. When S3 is expanded, it will first
expand S2 to V1 - C_a because of S2->{V1, C_a} in the map, then expand S3 to
V1 - C_a + C_b.
Differential Revision: https://reviews.llvm.org/D21313
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278160
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Chris Dewhurst [Tue, 9 Aug 2016 20:32:59 +0000 (20:32 +0000)]
Without explicitly including <string>, I'm getting an error on the new code in this file. Won't present an issue for anyone that isn't having the same trouble as me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278159
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Tim Shen [Tue, 9 Aug 2016 20:23:13 +0000 (20:23 +0000)]
[ADT] Change iterator_adaptor_base's default template arguments to forward more underlying typedefs
Reviewers: chandlerc
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23217
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278157
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Sanjay Patel [Tue, 9 Aug 2016 20:09:16 +0000 (20:09 +0000)]
regenerate checks and remove 'opt' run dependency
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278154
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Anna Thomas [Tue, 9 Aug 2016 20:00:47 +0000 (20:00 +0000)]
[EarlyCSE] Teach about CSE'ing over invariant.start intrinsics
Summary:
Teach EarlyCSE about invariant.start intrinsic. Specifically, we can perform
store-load, load-load forwarding over this call.
Reviewers: majnemer, reames, dberlin, sanjoy
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23268
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278153
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Ying Yi [Tue, 9 Aug 2016 19:53:35 +0000 (19:53 +0000)]
[llvm-cov] Swapped the line and count columns.
In the coverage report, the line and count columns have been swapped to make it more readable.
A follow-up commit in compiler-rt is needed
Differential Revision: https://reviews.llvm.org/D23281
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278152
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Sanjay Patel [Tue, 9 Aug 2016 19:42:52 +0000 (19:42 +0000)]
update to use FileCheck and auto-generate checks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278150
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Lang Hames [Tue, 9 Aug 2016 19:27:17 +0000 (19:27 +0000)]
Re-apply r278065 (Weak symbol support in RuntimeDyld) with a fix for ELF.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278149
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David Majnemer [Tue, 9 Aug 2016 18:34:19 +0000 (18:34 +0000)]
[vim] Update the llvm.vim syntax file
We never updated this file to contain the WinEH instructions.
Also, add the dereferenceable attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278146
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David Majnemer [Tue, 9 Aug 2016 17:55:12 +0000 (17:55 +0000)]
[X86] Don't model UD2/UD2B as a terminator
A UD2 might make its way into the program via a call to @llvm.trap.
Obviously, calls are not terminators. However, we modeled the X86
instruction, UD2, as a terminator. Later on, this confuses the epilogue
insertion machinery which results in the epilogue getting inserted
before the UD2. For some platforms, like x64, the result is a
violation of the ABI.
Instead, model UD2/UD2B as a side effecting instruction which may
observe memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278144
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Simon Pilgrim [Tue, 9 Aug 2016 17:39:11 +0000 (17:39 +0000)]
[DAGCombiner] Better support for shifting large value type by constants
As detailed on D22726, much of the shift combining code assume constant values will fit into a uint64_t value and calls ConstantSDNode::getZExtValue where it probably shouldn't (leading to asserts). Using APInt directly avoids this problem but we encounter other assertions if we attempt to compare/operate on 2 APInt of different bitwidths.
This patch adds a helper function to ensure that 2 APInt values are zero extended as required so that they can be safely used together. I've only added an initial example use for this to the '(SHIFT (SHIFT x, c1), c2) --> (SHIFT x, (ADD c1, c2))' combines. Further cases can easily be added as required.
Differential Revision: https://reviews.llvm.org/D23007
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278141
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Anna Thomas [Tue, 9 Aug 2016 17:18:05 +0000 (17:18 +0000)]
[AliasAnalysis] Treat invariant.start as read-memory
Summary:
We teach alias analysis that invariant.start is readonly.
This helps with GVN and memcopy optimizations that currently treat.
invariant.start as a clobber.
We need to treat this as readonly, so that DSE does not incorrectly
remove stores prior to the invariant.start
Reviewers: sanjoy, reames, majnemer, dberlin
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23214
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278138
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Sanjay Patel [Tue, 9 Aug 2016 17:03:51 +0000 (17:03 +0000)]
auto-generate checks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278137
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Sanjay Patel [Tue, 9 Aug 2016 17:02:17 +0000 (17:02 +0000)]
auto-generate checks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278136
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Sanjay Patel [Tue, 9 Aug 2016 16:59:54 +0000 (16:59 +0000)]
auto-generate checks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278135
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Hans Wennborg [Tue, 9 Aug 2016 16:46:02 +0000 (16:46 +0000)]
test-release.sh: Drop autoconf support
The autoconf build was deleted some time ago.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278133
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Sanjay Patel [Tue, 9 Aug 2016 16:39:05 +0000 (16:39 +0000)]
add tests for missing vector icmp folds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278132
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Sanjay Patel [Tue, 9 Aug 2016 16:19:57 +0000 (16:19 +0000)]
update to use FileCheck and auto-generate checks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278131
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Sanjay Patel [Tue, 9 Aug 2016 16:17:46 +0000 (16:17 +0000)]
regenerate checks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278130
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Sanjay Patel [Tue, 9 Aug 2016 16:05:57 +0000 (16:05 +0000)]
add tests for missing vector icmp folds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278129
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Xinliang David Li [Tue, 9 Aug 2016 15:35:28 +0000 (15:35 +0000)]
[Profile] turn off verbose warnings by default
no prof data for func warning is turned off by default
due to its high verbosity and minimal usefulness.
Differential Revision: http://reviews.llvm.org/D23295
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278127
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Artur Pilipenko [Tue, 9 Aug 2016 14:50:08 +0000 (14:50 +0000)]
[LVI] Make LVI smarter about comparisons with non-constants
Make LVI smarter about comparisons with a non-constant. For example, a s< b constraints a to be in [INT_MIN, INT_MAX) range. This is a part of https://llvm.org/bugs/show_bug.cgi?id=28620 fix.
Reviewed By: sanjoy
Differential Revision: https://reviews.llvm.org/D23205
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278122
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Simon Pilgrim [Tue, 9 Aug 2016 12:56:15 +0000 (12:56 +0000)]
[X86][XOP] Add support for combining target shuffles to VPERMIL2PD/VPERMIL2PS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278120
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Kuba Brecka [Tue, 9 Aug 2016 12:12:15 +0000 (12:12 +0000)]
Add `#ifdef __cplusplus` around `extern "C"` in Compiler.h. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278119
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Elena Demikhovsky [Tue, 9 Aug 2016 11:54:14 +0000 (11:54 +0000)]
AVX-512: A new test for FMA intrinsic
A new test that explores sub-optimal sequence of FMA intrinsic and FNEG operation.
An upcoming patch will fix it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278117
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Simon Pilgrim [Tue, 9 Aug 2016 10:56:29 +0000 (10:56 +0000)]
[X86][XOP] Add support for combining target shuffles to VPPERM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278114
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Dean Michael Berris [Tue, 9 Aug 2016 10:42:11 +0000 (10:42 +0000)]
[XRay] Test for xray_instr_map in object file. (NFC)
This makes a trivial change in the emission of the per-function XRay
tables, and makes sure that the xray_instr_map section does show up in
the object file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278113
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Artur Pilipenko [Tue, 9 Aug 2016 10:00:22 +0000 (10:00 +0000)]
Revert 278107 which causes buildbot failures and in addition has wrong commit message
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278109
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Vassil Vassilev [Tue, 9 Aug 2016 09:46:11 +0000 (09:46 +0000)]
[modules]Add missing include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278108
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Artur Pilipenko [Tue, 9 Aug 2016 09:41:34 +0000 (09:41 +0000)]
Teach CorrelatedValuePropagation to mark adds as no wrap
Use LVI to prove that adds do not wrap. The change is motivated by https://llvm.org/bugs/show_bug.cgi?id=28620 bug and it's the first step to fix that problem.
Reviewed By: sanjoy
Differential Revision: http://reviews.llvm.org/D23059
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278107
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Simon Pilgrim [Tue, 9 Aug 2016 09:32:34 +0000 (09:32 +0000)]
[X86][SSE] Fix memory folding of (v)roundsd / (v)roundss
We only had partial memory folding support for the intrinsic definitions, and (as noted on PR27481) was causing FR32/FR64/VR128 mismatch errors with the machine verifier.
This patch adds missing memory folding support for both intrinsics and the ffloor/fnearbyint/fceil/frint/ftrunc patterns and in doing so fixes the failing machine verifier stack folding tests from PR27481.
Differential Revision: https://reviews.llvm.org/D23276
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278106
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Artur Pilipenko [Tue, 9 Aug 2016 09:14:29 +0000 (09:14 +0000)]
[LVI] NFC. Fix a typo Bofore -> Before
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278105
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Craig Topper [Tue, 9 Aug 2016 05:26:09 +0000 (05:26 +0000)]
[X86] Reduce duplicated code in the execution domain lookup functions by passing tables as an argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278098
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Craig Topper [Tue, 9 Aug 2016 05:26:07 +0000 (05:26 +0000)]
[AVX-512] Add support for execution domain switching masked logical ops between floating point and integer domain.
This switches PS<->D and PD<->Q.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278097
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Craig Topper [Tue, 9 Aug 2016 03:06:33 +0000 (03:06 +0000)]
[X86] Remove the Fv packed logical operation alias instructions. Replace them with patterns to the regular instructions.
This enables execution domain fixing which is why the tests changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278090
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Craig Topper [Tue, 9 Aug 2016 03:06:28 +0000 (03:06 +0000)]
[X86] Cleanup patterns for AVX/SSE for PS operations. Always try to look for bitcasts from floating point types. If only AVX1 is supported we also need to handle integer types with floating point ops without looking for bitcasts.
Previously SSE1 had a pattern that looked for integer types without bitcasts, but the type wasn't legal with only SSE1 and SSE2 add an identical pattern for the integer instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278089
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Craig Topper [Tue, 9 Aug 2016 03:06:26 +0000 (03:06 +0000)]
[X86] Remove unnecessary bitcast from the front of AVX1Only 256-bit logical operation patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278088
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Matthias Braun [Tue, 9 Aug 2016 01:47:26 +0000 (01:47 +0000)]
X86InstrInfo: Update liveness in classifyLea()
We need to update liveness information when we create COPYs in
classifyLea().
This fixes http://llvm.org/28301
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278086
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Derek Schuff [Tue, 9 Aug 2016 00:29:55 +0000 (00:29 +0000)]
[WebAssembly] Fix bugs in WebAssemblyLowerEmscriptenExceptions pass
* Delete extra '_' prefixes from JS library function names. fixImports()
function in JS glue code deals with this for wasm.
* Change command-line option names in order to be consistent with
asm.js.
* Add missing lowering code for llvm.eh.typeid.for intrinsics
* Delete commas in mangled function names
* Fix a function argument attributes bug. Because we add the pointer to
the original callee as the first argument of invoke wrapper, all
argument attribute indices have to be incremented by one.
Patch by Heejin Ahn
Differential Revision: https://reviews.llvm.org/D23258
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278081
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Sean Silva [Tue, 9 Aug 2016 00:28:56 +0000 (00:28 +0000)]
Consistently use CGSCCAnalysisManager
Besides a general consistently benefit, the extra layer of indirection
allows the mechanical part of https://reviews.llvm.org/D23256 that
requires touching every transformation and analysis to be factored out
cleanly.
Thanks to David for the suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278080
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Sean Silva [Tue, 9 Aug 2016 00:28:52 +0000 (00:28 +0000)]
Consistently use LoopAnalysisManager
One exception here is LoopInfo which must forward-declare it (because
the typedef is in LoopPassManager.h which depends on LoopInfo).
Also, some includes for LoopPassManager.h were needed since that file
provides the typedef.
Besides a general consistently benefit, the extra layer of indirection
allows the mechanical part of https://reviews.llvm.org/D23256 that
requires touching every transformation and analysis to be factored out
cleanly.
Thanks to David for the suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278079
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Sean Silva [Tue, 9 Aug 2016 00:28:38 +0000 (00:28 +0000)]
Consistently use ModuleAnalysisManager
Besides a general consistently benefit, the extra layer of indirection
allows the mechanical part of https://reviews.llvm.org/D23256 that
requires touching every transformation and analysis to be factored out
cleanly.
Thanks to David for the suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278078
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Sean Silva [Tue, 9 Aug 2016 00:28:15 +0000 (00:28 +0000)]
Consistently use FunctionAnalysisManager
Besides a general consistently benefit, the extra layer of indirection
allows the mechanical part of https://reviews.llvm.org/D23256 that
requires touching every transformation and analysis to be factored out
cleanly.
Thanks to David for the suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278077
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Saleem Abdulrasool [Tue, 9 Aug 2016 00:25:12 +0000 (00:25 +0000)]
CodeView: extract the OMF Directory Header
The DebugDirectory contains a pointer to the CodeView info structure which is a
derivative of the OMF debug directory. The structure has evolved a bit over
time, and PDB 2.0 used a slightly different definition from PDB 7.0. Both of
these are specific to CodeView and not COFF. Reflect this by moving the
structure definitions into the DebugInfo/CodeView headers. Define a generic
DebugInfo union type that can be used to pass around a reference to the
DebugInfo irrespective of the versioning. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278075
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Sanjay Patel [Tue, 9 Aug 2016 00:01:11 +0000 (00:01 +0000)]
[x86] split combineVSelectWithAllOnesOrZeros into a helper function; NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278074
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Derek Schuff [Mon, 8 Aug 2016 23:56:01 +0000 (23:56 +0000)]
[WebAssembly] Fix CFI index to account for padding nullptr function
The WebAssembly linker now creates a dummy function at index 0 to
prevent miscomparisons with the NULL pointer, see
https://github.com/WebAssembly/binaryen/pull/658. Thanks to pcc for
pointing out this problem!
Patch by Dominic Chen
Differential Revision: https://reviews.llvm.org/D23137
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278073
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Rui Ueyama [Mon, 8 Aug 2016 23:07:03 +0000 (23:07 +0000)]
Revert "Do not ignore SizeOfOptionalHeader in COFF header even if PE header is not present."
This reverts commit r278066 to unbreak buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278070
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Lang Hames [Mon, 8 Aug 2016 22:57:30 +0000 (22:57 +0000)]
Revert r278065 while I investigate some build-bot breakage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278069
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Rui Ueyama [Mon, 8 Aug 2016 22:54:22 +0000 (22:54 +0000)]
Do not ignore SizeOfOptionalHeader in COFF header even if PE header is not present.
Attribute SizeOfOptionalHeader is ignored if no PE header is present
in the file. This attribute should be ignored according to standard,
however there are uses of this field even though it should not be used.
This change does not conform to PE/COFF standard, but there are several
COFF files without PE header, where you had to add up SizeOfOptionalHeader
in order to get proper section headers. Other tools and their own parsers
do take this into account.
Patch by Marek Milkovič!
https://reviews.llvm.org/D22750
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278066
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Lang Hames [Mon, 8 Aug 2016 22:53:37 +0000 (22:53 +0000)]
[RuntimeDyld][Orc][MCJIT] Add partial weak-symbol support to RuntimeDyld.
This patch causes RuntimeDyld to check for existing definitions when it
encounters weak symbols. If a definition already exists then the new weak
definition is discarded. All symbol lookups within a "logical dylib" should now
agree on the address of any given weak symbol. This allows the JIT to better
match the behavior of the static linker for C++ code.
This support is only partial, as it does not allow strong definitions that
occur after the first weak definition (in JIT symbol lookup order) to override
the previous weak definitions. Support for this will be added in a future
patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278065
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Charles Davis [Mon, 8 Aug 2016 21:20:15 +0000 (21:20 +0000)]
Revert "[X86] Support the "ms-hotpatch" attribute."
This reverts commit r278048. Something changed between the last time I
built this--it takes awhile on my ridiculously slow and ancient
computer--and now that broke this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278053
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Justin Bogner [Mon, 8 Aug 2016 21:02:11 +0000 (21:02 +0000)]
InstCombine: Remove a redundant #ifdef NDEBUG. NFC
The DEBUG() macro already does this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278049
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Charles Davis [Mon, 8 Aug 2016 21:01:39 +0000 (21:01 +0000)]
[X86] Support the "ms-hotpatch" attribute.
Summary:
Based on two patches by Michael Mueller.
This is a target attribute that causes a function marked with it to be
emitted as "hotpatchable". This particular mechanism was originally
devised by Microsoft for patching their binaries (which they are
constantly updating to stay ahead of crackers, script kiddies, and other
ne'er-do-wells on the Internet), but is now commonly abused by Windows
programs to hook API functions.
This mechanism is target-specific. For x86, a two-byte no-op instruction
is emitted at the function's entry point; the entry point must be
immediately preceded by 64 (32-bit) or 128 (64-bit) bytes of padding.
This padding is where the patch code is written. The two byte no-op is
then overwritten with a short jump into this code. The no-op is usually
a `movl %edi, %edi` instruction; this is used as a magic value
indicating that this is a hotpatchable function.
Reviewers: majnemer, sanjoy, rnk
Subscribers: dberris, llvm-commits
Differential Revision: https://reviews.llvm.org/D19908
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278048
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Geoff Berry [Mon, 8 Aug 2016 19:33:27 +0000 (19:33 +0000)]
[MemorySSA] Fix windows build breakage caused by r278028 (take 2)
r278028: [MemorySSA] Ensure address stability of MemorySSA object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278041
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Krzysztof Parzyszek [Mon, 8 Aug 2016 19:24:25 +0000 (19:24 +0000)]
[Hexagon] Add pattern for 64-bit mulhs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278040
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Michael Zolotukhin [Mon, 8 Aug 2016 19:02:15 +0000 (19:02 +0000)]
[LoopUnroll] Simplify loops created by unrolling.
Summary:
Currently loop-unrolling doesn't preserve loop-simplified form. This patch
fixes it by resimplifying affected loops.
Reviewers: chandlerc, sanjoy, hfinkel
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23148
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278038
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Mehdi Amini [Mon, 8 Aug 2016 18:51:05 +0000 (18:51 +0000)]
RefreshCallGraph does not modify the SCC, adding "const" to make it clear (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278037
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Geoff Berry [Mon, 8 Aug 2016 18:27:22 +0000 (18:27 +0000)]
[MemorySSA] Fix windows build breakage caused by r278028
r278028: [MemorySSA] Ensure address stability of MemorySSA object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278035
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Elliot Colp [Mon, 8 Aug 2016 18:11:13 +0000 (18:11 +0000)]
Re-add SystemZ SNaN test
The floating-point bug affecting ninja-x64-msvc-RA-centos6 is fixed (r277813) so this test should
now pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278034
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Lang Hames [Mon, 8 Aug 2016 18:09:56 +0000 (18:09 +0000)]
[BuildingAJIT] Fix a couple of typos in the Chapter 3 draft.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278033
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Nirav Dave [Mon, 8 Aug 2016 18:01:04 +0000 (18:01 +0000)]
[X86] Improve code size on X86 segment moves
Moves of a value to a segment register from a 16-bit register is
equivalent to one from it's corresponding 32-bit register. Match gas's
behavior and rewrite instructions to the shorter of equivalent forms.
Reviewers: rnk, ab
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23166
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278031
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Geoff Berry [Mon, 8 Aug 2016 17:52:01 +0000 (17:52 +0000)]
[MemorySSA] Ensure address stability of MemorySSA object.
Summary:
Ensure that the MemorySSA object never changes address when using the
new pass manager since the walkers contained by MemorySSA cache pointers
to it at construction time. This is achieved by wrapping the
MemorySSAAnalysis result in a unique_ptr. Also add some asserts that
check for this bug.
Reviewers: george.burgess.iv, dberlin
Subscribers: mcrosier, hfinkel, chandlerc, silvas, llvm-commits
Differential Revision: https://reviews.llvm.org/D23171
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278028
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Oliver Stannard [Mon, 8 Aug 2016 15:28:31 +0000 (15:28 +0000)]
[ARM] Add support for embedded position-independent code
This patch adds support for some new relocation models to the ARM
backend:
* Read-only position independence (ROPI): Code and read-only data is accessed
PC-relative. The offsets between all code and RO data sections are known at
static link time. This does not affect read-write data.
* Read-write position independence (RWPI): Read-write data is accessed relative
to the static base register (r9). The offsets between all writeable data
sections are known at static link time. This does not affect read-only data.
These two modes are independent (they specify how different objects
should be addressed), so they can be used individually or together. They
are otherwise the same as the "static" relocation model, and are not
compatible with SysV-style PIC using a global offset table.
These modes are normally used by bare-metal systems or systems with
small real-time operating systems. They are designed to avoid the need
for a dynamic linker, the only initialisation required is setting r9 to
an appropriate value for RWPI code.
I have only added support to SelectionDAG, not FastISel, because
FastISel is currently disabled for bare-metal targets where these modes
would be used.
Differential Revision: https://reviews.llvm.org/D23195
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278015
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Zhan Jun Liau [Mon, 8 Aug 2016 15:13:08 +0000 (15:13 +0000)]
[SystemZ] Add support for the .insn directive
Summary:
Add support for the .insn directive.
.insn is an s390 specific directive that allows encoding of an instruction
instead of using a mnemonic. The motivating case is some code in node.js that
requires support for the .insn directive.
Reviewers: koriakin, uweigand
Subscribers: koriakin, llvm-commits
Differential Revision: https://reviews.llvm.org/D21809
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278012
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Nico Weber [Mon, 8 Aug 2016 14:51:53 +0000 (14:51 +0000)]
Revert r2277979.
For some reason, MSVC2013's cl.exe crashes with
fatal error C1001: An internal error has occurred in the compiler
with this when compiling e.g. LoopDistribute.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278011
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Sebastian Pop [Mon, 8 Aug 2016 14:46:15 +0000 (14:46 +0000)]
GVN-hoist: enable by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278010
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Artur Pilipenko [Mon, 8 Aug 2016 14:33:11 +0000 (14:33 +0000)]
[LVI] NFC. On the fast dest path use inverse predicate instead of inverse range result
Gathering constantins from a condition on the false path ask makeAllowedICmpRegion about inverse predicate instead of inversing the resulting range.
This change was separated from the review "[LVI] Make LVI smarter about comparisons with non-constants" (https://reviews.llvm.org/D23205#inline-198361)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278009
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Artur Pilipenko [Mon, 8 Aug 2016 14:13:56 +0000 (14:13 +0000)]
[LVI] NFC. Rename confusing local NegOffset to Offset
NegOffset is not necessarily negative
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278008
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Artur Pilipenko [Mon, 8 Aug 2016 14:08:37 +0000 (14:08 +0000)]
[LVI] NFC. Extract LHS, RHS, Predicate locals in getValueFromCondition
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278007
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Silviu Baranga [Mon, 8 Aug 2016 13:13:57 +0000 (13:13 +0000)]
[AArch64] PR28877: Don't assume we're running after legalization when creating vcvtfp2fxs
Summary:
The DAG combine transformation that was generating the
aarch64_neon_vcvtfp2fxs node was assuming that all
inputs where legal and wasn't accounting that the input
could be a v4f64 if we're trying to do the transformation
before legalization. We now bail out in this case.
All illegal types besides v4f64 were already rejected.
Fixes https://llvm.org/bugs/show_bug.cgi?id=28877.
Reviewers: jmolloy
Subscribers: aemerson, rengolin, llvm-commits
Differential Revision: https://reviews.llvm.org/D23261
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278002
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Daniel Sanders [Mon, 8 Aug 2016 11:50:25 +0000 (11:50 +0000)]
Re-commit r277988: [mips][ias] Fix all the hacks related to MIPS-specific unary operators (%hi/%lo/%gp_rel/etc.).
Hopefully with the MSVC builds fixed. I've added a missing '#include <tuple>'
that gcc and clang don't seem to need.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277995
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Simon Pilgrim [Mon, 8 Aug 2016 11:49:24 +0000 (11:49 +0000)]
Fix Wdocumentation unknown parameter warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277994
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Simon Pilgrim [Mon, 8 Aug 2016 11:07:34 +0000 (11:07 +0000)]
[X86][SSE] Assert if the shuffle mask indices are not -1 or within a valid input range
As discussed in post-review rL277959
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277993
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Daniel Sanders [Mon, 8 Aug 2016 09:33:14 +0000 (09:33 +0000)]
Revert r277988: [mips][ias] Fix all the hacks related to MIPS-specific unary operators (%hi/%lo/%gp_rel/etc.).
It seems that MSVC doesn't like std::tie().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277990
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Daniel Sanders [Mon, 8 Aug 2016 09:20:52 +0000 (09:20 +0000)]
[mips][ias] Fix all the hacks related to MIPS-specific unary operators (%hi/%lo/%gp_rel/etc.).
Summary:
They are now lexed as a single token on targets where
MCAsmInfo::HasMipsExpressions is true and then parsed in a similar way to
the '~' operator as part of MCExpr::parseExpression.
As a result:
* expressions and immediates no longer have different parsing rules. The
difference is now solely down to whether evaluateAsAbsolute() succeeds.
* %hi(%neg(%gp_rel(x))) are no longer parsed as a single operator and
decomposed into the three MipsMCExpr nodes. They are parsed directly as
three MipsMCExpr nodes.
* parseMemOperand no longer needs to eat all the surrounding parenthesis
to get at the outermost operator to make this work
* %hi(%neg(%gp_rel(x))) and %lo(%neg(%gp_rel(x))) are no longer the only
3-in-1 relocs that parse for N64. They're still the only combinations that
are permitted in relocatable expressions though. Fixing that should be a
later patch.
* We no longer need to list all the tokens that can occur as the first token of
an expression or immediate.
test/MC/Mips/expr1.s:
This change also prevents the incorrect lowering of %lo(2*4)+foo to
%lo(8+foo) which is not an equivalent expression (the difference is
whether foo is truncated to 16-bit or not) and the test has been
updated to account for the macro expansion the correct expression requires.
Reviewers: sdardis
Subscribers: dsanders, sdardis, llvm-commits
Differential Revision: https://reviews.llvm.org/D23110
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277988
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Diana Picus [Mon, 8 Aug 2016 08:54:39 +0000 (08:54 +0000)]
[SelectionDAG] Refactor visitInlineAsm a bit. NFCI.
This shaves off ~100 lines from visitInlineAsm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277987
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Sean Silva [Mon, 8 Aug 2016 07:03:49 +0000 (07:03 +0000)]
Add some comments linking back to PR28400.
Thanks to Mehdi for the suggestion!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277984
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Sean Silva [Mon, 8 Aug 2016 05:38:06 +0000 (05:38 +0000)]
[PM] More workaround for PR28400
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277982
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Sean Silva [Mon, 8 Aug 2016 05:38:03 +0000 (05:38 +0000)]
[PM] BasicAA needs to be invalidated since it holds pointers to other stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277981
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Sean Silva [Mon, 8 Aug 2016 05:38:01 +0000 (05:38 +0000)]
[PM] Invalidate CallGraphAnalysis because it holds AssertingVH
This is essentially PR28400. The fix here is similar to that implemented
in r274656.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277980
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Sean Silva [Mon, 8 Aug 2016 05:37:58 +0000 (05:37 +0000)]
[PM] Function-level TLI is also immutable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277979
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Daniel Berlin [Mon, 8 Aug 2016 04:44:53 +0000 (04:44 +0000)]
[MSSA] Fix PR28880 by fixing use optimizer's lower bound tracking behavior.
Summary:
In the use optimizer, we need to keep of whether the lower bound still
dominates us or else we may decide a lower bound is still valid when it
is not due to intervening pushes/pops. Fixes PR28880 (and probably a
bunch of other things).
Reviewers: george.burgess.iv
Subscribers: MatzeB, llvm-commits, sebpop
Differential Revision: https://reviews.llvm.org/D23237
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277978
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Eli Friedman [Mon, 8 Aug 2016 04:10:22 +0000 (04:10 +0000)]
[JumpThreading] Fix handling of aliasing metadata.
Summary:
The correctness fix here is that when we CSE a load with another load,
we need to combine the metadata on the two loads. This matches the
behavior of other passes, like instcombine and GVN.
There's also a minor optimization improvement here: for load PRE, the
aliasing metadata on the inserted load should be the same as the
metadata on the original load. Not sure why the old code was throwing
it away.
Issue found by inspection.
Differential Revision: http://reviews.llvm.org/D21460
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277977
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Davide Italiano [Mon, 8 Aug 2016 03:30:01 +0000 (03:30 +0000)]
[MC] Delete use of *structors_used.
Jim Grosbach and Kevin Enderby think those are not used anymore.
Originally submitted by: Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277973
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