Derek Schuff [Fri, 16 Sep 2016 20:58:31 +0000 (20:58 +0000)]
[WebAssembly] Fix function types of CFGStackify tests
Make the function's declared type match its (lack of) return type
llvm-svn: 281773
Rafael Espindola [Fri, 16 Sep 2016 20:34:02 +0000 (20:34 +0000)]
Fix constraint checking in ONLY_IF_RO.
We have to look at all the relevant input sections at once.
llvm-svn: 281772
George Rimar [Fri, 16 Sep 2016 20:21:55 +0000 (20:21 +0000)]
[ELF] - Implemented --sort-section cmd line option and SORT_NONE script command.
This fixes Bug 30385 - SORT_NONE not implemented,
`SORT_NONE' disables section sorting by ignoring the command line
section sorting option.
That is why this patch also implements --sort-section option.
Description of sorting rules
available at https://sourceware.org/binutils/docs/ld/Input-Section-Wildcards.html
Differential revision: https://reviews.llvm.org/D24604
llvm-svn: 281771
Greg Clayton [Fri, 16 Sep 2016 20:10:02 +0000 (20:10 +0000)]
Fix compiler warnings where two values weren't being initialized.
llvm-svn: 281770
Simon Pilgrim [Fri, 16 Sep 2016 20:00:51 +0000 (20:00 +0000)]
[X86][SSE] Added vector sub combine tests
llvm-svn: 281769
Simon Pilgrim [Fri, 16 Sep 2016 19:20:41 +0000 (19:20 +0000)]
[X86][SSE] Added vector add combine tests
Some work great and others currently demonstrate the anti-vector bias prevalent in DAGCombiner
llvm-svn: 281768
Shoaib Meenai [Fri, 16 Sep 2016 19:12:54 +0000 (19:12 +0000)]
[libc++] Fix inline attribute for non-MSVC Windows
gcc and clang in gcc compatibility mode do not accept __forceinline. Use
the gcc attribute for them instead.
Differential Revision: https://reviews.llvm.org/D24678
llvm-svn: 281766
Zachary Turner [Fri, 16 Sep 2016 19:09:19 +0000 (19:09 +0000)]
Set the correct triple when creating an ArchSpec for Windows.
Patch by Walter Erquinigo
Differential Revision: https://reviews.llvm.org/D24283
llvm-svn: 281765
Zachary Turner [Fri, 16 Sep 2016 19:09:12 +0000 (19:09 +0000)]
Add unit tests for a few string conversion functions in Args.
Also provided a StringRef overload for these functions and have
the const char* overloads delegate to the StringRef overload.
llvm-svn: 281764
Derek Schuff [Fri, 16 Sep 2016 18:50:39 +0000 (18:50 +0000)]
Install libLLVM if needed with LLVM_INSTALL_TOOLCHAIN_ONLY
Summary:
When LLVM_LINK_LLVM_DYLIB is set, the libLLVM shared
library needs to be installed in the toolchain. Without
this chanage LLVM_INSTALL_TOOLCHAIN_ONLY combined with
LLVM_LINK_LLVM_DYLIB results in a broken install.
Patch by Sam Clegg
Differential Revision: https://reviews.llvm.org/D24676
llvm-svn: 281763
Nirav Dave [Fri, 16 Sep 2016 18:30:20 +0000 (18:30 +0000)]
Defer asm errors to post-statement failure
Recommitting after fixing AsmParser initialization and X86 inline asm
error cleanup.
Allow errors to be deferred and emitted as part of clean up to simplify
and shorten Assembly parser code. This will allow error messages to be
emitted in helper functions and be modified by the caller which has
better context.
As part of this many minor cleanups to the Parser:
* Unify parser cleanup on error
* Add Workaround for incorrect return values in ParseDirective instances
* Tighten checks on error-signifying return values for parser functions
and fix in-tree TargetParsers to be more consistent with the changes.
* Fix AArch64 test cases checking for spurious error messages that are
now fixed.
These changes should be backwards compatible with current Target Parsers
so long as the error status are correctly returned in appropriate
functions.
Reviewers: rnk, majnemer
Subscribers: aemerson, jyknight, llvm-commits
Differential Revision: https://reviews.llvm.org/D24047
llvm-svn: 281762
Dehao Chen [Fri, 16 Sep 2016 18:27:20 +0000 (18:27 +0000)]
Change extractProfMetadata and extractProfTotalWeight to const member function.
llvm-svn: 281760
Michael Kuperstein [Fri, 16 Sep 2016 18:20:43 +0000 (18:20 +0000)]
Make test slightly more explicit. NFC.
llvm-svn: 281759
Eli Friedman [Fri, 16 Sep 2016 18:01:48 +0000 (18:01 +0000)]
LoopDistribute should preserve GlobalsAA.
Differential Revision: https://reviews.llvm.org/D24204
llvm-svn: 281758
Eli Friedman [Fri, 16 Sep 2016 17:58:07 +0000 (17:58 +0000)]
LoopLoadElimination should preserve GlobalsAA.
Avoids losing GlobalsAA in the standard pass pipeline.
Differential Revision: https://reviews.llvm.org/D24094
llvm-svn: 281757
Sanjay Patel [Fri, 16 Sep 2016 17:54:52 +0000 (17:54 +0000)]
auto-generate checks
llvm-svn: 281756
Sanjay Patel [Fri, 16 Sep 2016 17:48:16 +0000 (17:48 +0000)]
auto-generate checks
llvm-svn: 281755
George Rimar [Fri, 16 Sep 2016 17:42:10 +0000 (17:42 +0000)]
Recommit r281721 "[ELF] - Linkerscript: implement EXCLUDE_FILE in the middle of a input section description."
With fix for 2 bots. Details about the fix performed is on a review page.
Initial commit message:
This is PR30387:
From PR description:
We fail to parse
SECTIONS
{
foo :
{
*(sec0 EXCLUDE_FILE (zed1.o) sec1 EXCLUDE_FILE (zed2.o) sec2 )
}
}
The semantics according to bfd are:
Include sec1 from every file but zed1.o
Include sec2 from every file but zed2.o
Include sec0 from every file
Patch implements the support.
Differential revision: https://reviews.llvm.org/D24650
llvm-svn: 281754
Nirav Dave [Fri, 16 Sep 2016 17:42:02 +0000 (17:42 +0000)]
Introduce inline assembly parsing test is PR30372.
llvm-svn: 281753
Mehdi Amini [Fri, 16 Sep 2016 17:18:16 +0000 (17:18 +0000)]
Fix test after renaming -name-anon-functions pass to -name-anon-globals
llvm-svn: 281752
Teresa Johnson [Fri, 16 Sep 2016 17:12:48 +0000 (17:12 +0000)]
[LTO] Use llvm-nm instead of nm in new tests
The use of nm in the new tests added with r281725 caused a couple
of bot failures:
http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/15701
http://bb.pgr.jp/builders/ninja-clang-i686-msc19-R/builds/6939
Use llvm-nm instead.
llvm-svn: 281750
Eric Christopher [Fri, 16 Sep 2016 17:07:23 +0000 (17:07 +0000)]
Actually remove the Mangler from the AsmPrinter and clean up the places it was "used" but not used.
llvm-svn: 281749
Eric Christopher [Fri, 16 Sep 2016 17:07:13 +0000 (17:07 +0000)]
Fix a hidden use of grabbing the Mangler from the AsmPrinter and update
accordingly.
llvm-svn: 281748
Reid Kleckner [Fri, 16 Sep 2016 17:05:40 +0000 (17:05 +0000)]
Remove undefined weak hooks from dll thunk export list to really fix windows build
llvm-svn: 281747
Francis Ricci [Fri, 16 Sep 2016 16:59:31 +0000 (16:59 +0000)]
[compiler-rt] Don't force ASAN_HAS_EXCEPTIONS to be true for all builds
Summary:
This value is already defaulted to true in asan_internal.h.
Allow the value to be overriden in cases where exceptions are unavailable.
Reviewers: kcc, samsonov, compnerd
Subscribers: kubabrecka, dberris, beanz, mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D24633
llvm-svn: 281746
Mehdi Amini [Fri, 16 Sep 2016 16:56:30 +0000 (16:56 +0000)]
Rename NameAnonFunctions to NameAnonGlobals to match what it is doing (NFC)
llvm-svn: 281745
Mehdi Amini [Fri, 16 Sep 2016 16:56:25 +0000 (16:56 +0000)]
Fix NameAnonFunctions pass: for ThinLTO we need to rename global variables as well
A follow-up patch will rename this pass and the source file accordingly,
but I figured the non-NFC change will be easier to spot in isolation.
Differential Revision: https://reviews.llvm.org/D24641
llvm-svn: 281744
Sanjay Patel [Fri, 16 Sep 2016 16:10:22 +0000 (16:10 +0000)]
[InstCombine] add helper functions for visitICmpInst(); NFCI
llvm-svn: 281743
Davide Italiano [Fri, 16 Sep 2016 16:07:19 +0000 (16:07 +0000)]
[IRObjectFile] Turn llvm_unreachable("foo") into something more explicative.
llvm-svn: 281742
Davide Italiano [Fri, 16 Sep 2016 16:05:25 +0000 (16:05 +0000)]
[LTO] Prevent asm references to be dropped from the output.
Differential Revision: https://reviews.llvm.org/D24617
llvm-svn: 281741
Eugene Leviant [Fri, 16 Sep 2016 15:30:47 +0000 (15:30 +0000)]
Improve handling ASSERT outside SECTIONS block
Differential revision: https://reviews.llvm.org/D24450
llvm-svn: 281740
Ahmed Bougacha [Fri, 16 Sep 2016 15:12:46 +0000 (15:12 +0000)]
[AArch64][GlobalISel] Add default regbank mapping for int<>FP.
llvm-svn: 281739
Ahmed Bougacha [Fri, 16 Sep 2016 15:12:43 +0000 (15:12 +0000)]
[AArch64][GlobalISel] Add default regbank mapping for G_FCMP.
llvm-svn: 281738
Ahmed Bougacha [Fri, 16 Sep 2016 15:12:40 +0000 (15:12 +0000)]
[AArch64][GlobalISel] Add default regbank mapping for FP ops.
These should have all their operands - even scalars - go on FPR.
llvm-svn: 281737
Rafael Espindola [Fri, 16 Sep 2016 15:10:23 +0000 (15:10 +0000)]
Change how we compute offsets with linker scripts.
This fixes pr30367, but more importantly, it changes how we compute offsets.
Now offset computation in a walk over linker script commands, like the
rest of assignAddresses. IMHO this is simpler to understand and if we
ever have to create multiple outputsections or chunks to change how we
handle test/ELF/linkerscript/alternate-sections.s it should be easier
to do it.
llvm-svn: 281736
Ahmed Bougacha [Fri, 16 Sep 2016 14:44:54 +0000 (14:44 +0000)]
[AArch64][GlobalISel] Test default regbank mapping for G_ICMP.
Also relax a RegisterBankInfo verifier check that's incompatible with
1-bit mappings.
llvm-svn: 281735
Ahmed Bougacha [Fri, 16 Sep 2016 14:44:51 +0000 (14:44 +0000)]
[AArch64][GlobalISel] Add default regbank mappings for mixed-type ops.
We used to only support instructions with same-type operands.
Instead, use the per-register type information to map each
operand more accurately.
llvm-svn: 281734
Ahmed Bougacha [Fri, 16 Sep 2016 14:44:48 +0000 (14:44 +0000)]
[AArch64][GlobalISel] Add tests for default RegBank mappings. NFC.
llvm-svn: 281733
David L Kreitzer [Fri, 16 Sep 2016 14:38:13 +0000 (14:38 +0000)]
Reapplying r278731 after fixing the problem that caused it to be reverted.
Enhance SCEV to compute the trip count for some loops with unknown stride.
Patch by Pankaj Chawla
Differential Revision: https://reviews.llvm.org/D22377
llvm-svn: 281732
Asiri Rathnayake [Fri, 16 Sep 2016 14:32:19 +0000 (14:32 +0000)]
[libcxx] Add missing c++98 xfail. NFC.
This is the only test failing in c++98 mode at the moment.
llvm-svn: 281731
Saleem Abdulrasool [Fri, 16 Sep 2016 14:24:26 +0000 (14:24 +0000)]
CodeGen: use pointer rather than reference in range loop
Address post-commit comments from Justin Bogner. Explicitly indicate
that the dereferenced iterator provides a pointer rather than a
reference. NFC.
llvm-svn: 281730
Simon Dardis [Fri, 16 Sep 2016 14:16:23 +0000 (14:16 +0000)]
[mips] Fix previous revert r281726.
llvm-svn: 281729
Ismail Donmez [Fri, 16 Sep 2016 14:10:23 +0000 (14:10 +0000)]
Fix shared library build
llvm-svn: 281728
Keith Walker [Fri, 16 Sep 2016 14:07:29 +0000 (14:07 +0000)]
Place the lowered phi instruction(s) before the DEBUG_VALUE entry
When a phi node is finally lowered to a machine instruction it is
important that the lowered "load" instruction is placed before the
associated DEBUG_VALUE entry describing the value loaded.
Renamed the existing SkipPHIsAndLabels to SkipPHIsLabelsAndDebug to
more fully describe that it also skips debug entries. Then used the
"new" function SkipPHIsAndLabels when the debug information should not
be skipped when placing the lowered "load" instructions so that it is
placed before the debug entries.
Differential Revision: https://reviews.llvm.org/D23760
llvm-svn: 281727
Simon Dardis [Fri, 16 Sep 2016 13:56:05 +0000 (13:56 +0000)]
Revert "[mips] Fix aui/daui/dahi/dati for MIPSR6"
This reverts r281724. Still need dsanders to accept this.
llvm-svn: 281726
Teresa Johnson [Fri, 16 Sep 2016 13:54:19 +0000 (13:54 +0000)]
[LTO] Fix handling of mixed (regular and thin) mode LTO
Summary:
In runThinLTO we start the task numbering for ThinLTO backend
tasks depending on whether there was also a regular LTO object
(CombinedModule). However, the CombinedModule is moved at
the end of runRegularLTO, so we need to save this information and
pass it into runThinLTO. Otherwise the AddOutput callback to the client
will use the same task number for both the regular LTO object
and the first ThinLTO object, which in gold-plugin caused only
one to be end up in the output filename array and therefore passed
back to gold for the final native link.
Reviewers: pcc, mehdi_amini
Subscribers: mehdi_amini, kromanova
Differential Revision: https://reviews.llvm.org/D24643
llvm-svn: 281725
Simon Dardis [Fri, 16 Sep 2016 13:50:43 +0000 (13:50 +0000)]
[mips] Fix aui/daui/dahi/dati for MIPSR6
For compatiblity with binutils, define these instructions to take
two registers with a 16bit unsigned immediate. Both of the registers
have to be same for dahi and dati.
Reviewers: vkalintiris, dsanders, zoran.jovanovic
Differential Review: https://reviews.llvm.org/D21473
llvm-svn: 281724
George Rimar [Fri, 16 Sep 2016 13:30:18 +0000 (13:30 +0000)]
Reverted r281721 ("[ELF] - Linkerscript: implement EXCLUDE_FILE in the middle of a input section description.").
It broke build bot:
http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/27508
llvm-svn: 281723
Sjoerd Meijer [Fri, 16 Sep 2016 13:16:52 +0000 (13:16 +0000)]
Reverting r281719, this is causing buildbot failures and timeouts again.
llvm-svn: 281722
George Rimar [Fri, 16 Sep 2016 13:07:02 +0000 (13:07 +0000)]
[ELF] - Linkerscript: implement EXCLUDE_FILE in the middle of a input section description.
This is PR30387:
From PR description:
We fail to parse
SECTIONS
{
foo :
{
*(sec0 EXCLUDE_FILE (zed1.o) sec1 EXCLUDE_FILE (zed2.o) sec2 )
}
}
The semantics according to bfd are:
Include sec1 from every file but zed1.o
Include sec2 from every file but zed2.o
Include sec0 from every file
Patch implements the support.
Differential revision: https://reviews.llvm.org/D24650
llvm-svn: 281721
Ahmed Bougacha [Fri, 16 Sep 2016 12:33:34 +0000 (12:33 +0000)]
[AArch64][GlobalISel] Use the generic DefaultMapping as the default.
This lets generic logic handle the common case, instead of having to
implement applyMappingImpl for each instruction.
llvm-svn: 281720
Sjoerd Meijer [Fri, 16 Sep 2016 12:10:09 +0000 (12:10 +0000)]
This is an attempt to reapply r280808: [ARM] Lower UDIV+UREM to UDIV+MLS
(and the same for SREM)
This was causing buildbot failures earlier (time outs in the LNT suite).
However, we haven't been able to reproduce this and are suspecting this
was caused by another (reverted) patch.
llvm-svn: 281719
Eric Liu [Fri, 16 Sep 2016 11:50:57 +0000 (11:50 +0000)]
Trying to fix Mangler memory leak in TargetLoweringObjectFile.
Summary:
`TargetLoweringObjectFile` can be re-used and thus `TargetLoweringObjectFile::Initialize()`
can be called multiple times causing `Mang` pointer memory leak.
Reviewers: echristo
Subscribers: llvm-commits, mehdi_amini
Differential Revision: https://reviews.llvm.org/D24659
llvm-svn: 281718
Luke Drummond [Fri, 16 Sep 2016 11:28:12 +0000 (11:28 +0000)]
[RenderScript] Support tracking and dumping reduction kernels
Initial implementation of support for tracking
[RenderScript Reductions](https://developer.android.com/guide/topics/renderscript/compute.html#reduction-in-depth)
With this patch, `language renderscript module dump` properly lists reductions
that are part of loaded RenderScript modules as well the the consituent
functions and their roles, within the reduction.
This support required new tracking mechanisms for the `#pragma(reduce)`
mechanism, and extension of `RSModuleDescriptor::ParseRSInfo` to support
the metadata output by `bcc`. This work was also an opportunity to
refactor/improve parse code:
- `RSModuleDescriptor::ParseExportReduceCount` now has a complete
implementation and the debugger can correctly track reductions on
receipt of a module hook.
- `RSModuleDescriptor::Dump` now dumps Reductions as well as `ForEach`
kernels. Also, fixed indentation of the output, and made indentation
groupings in the source clearer.
- `RSModuleDescriptor::ParseRSInfo` now returns true if the `".rs.info"`
packet has nonzero linecount, rather than rejecting RenderScripts that
don't contain kernels (an unlikely situation, but possibly valid). This
was changed because scripts that only contained reductions were not
being tracked in `RenderScriptRuntime::LoadModule`.
- Refactor `RSModuleInfo::ParseRSInfo` and add reduction spec parser stub
- Prepared ParseRSInfo to more easily be able to add new parser types
- Use llvm::StringRef and llvm::StringMap helpers to make the parsing code cleaner
- factor out forEachCount, globalVarCount, and pragmaCount parsing block to their own methods
- Add ExportReduceCount Parser
- Use `llvm::StringRef` in `RSKernelDescriptor` constructor
- removed now superfluous `MAXLINE` macros as we've switched from `const
char *` to `llvm::StringRef`
llvm-svn: 281717
Chandler Carruth [Fri, 16 Sep 2016 10:20:17 +0000 (10:20 +0000)]
[LCG] Redesign the lazy post-order iteration mechanism for the
LazyCallGraph to support repeated, stable iterations, even in the face
of graph updates.
This is particularly important to allow the CGSCC pass manager to walk
the RefSCCs (and thus everything else) in a module more than once. Lots
of unittests and other tests were hard or impossible to write because
repeated CGSCC pass managers which didn't invalidate the LazyCallGraph
would conclude the module was empty after the first one. =[ Really,
really bad.
The interesting thing is that in many ways this simplifies the code. We
can now re-use the same code for handling reference edge insertion
updates of the RefSCC graph as we use for handling call edge insertion
updates of the SCC graph. Outside of adapting to the shared logic for
this (which isn't trivial, but is *much* simpler than the DFS it
replaces!), the new code involves putting newly created RefSCCs when
deleting a reference edge into the cached list in the correct way, and
to re-formulate the iterator to be stable and effective even in the face
of these kinds of updates.
I've updated the unittests for the LazyCallGraph to re-iterate the
postorder sequence and verify that this all works. We even check for
using alternating iterators to trigger the lazy formation of RefSCCs
after mutation has occured.
It's worth noting that there are a reasonable number of likely
simplifications we can make past this. It isn't clear that we need to
keep the "LeafRefSCCs" around any more. But I've not removed that mostly
because I want this to be a more isolated change.
Differential Revision: https://reviews.llvm.org/D24219
llvm-svn: 281716
James Molloy [Fri, 16 Sep 2016 10:17:04 +0000 (10:17 +0000)]
[ARM] Promote small global constants to constant pools
If a constant is unamed_addr and is only used within one function, we can save
on the code size and runtime cost of an indirection by changing the global's storage
to inside the constant pool. For example, instead of:
ldr r0, .CPI0
bl printf
bx lr
.CPI0: &format_string
format_string: .asciz "hello, world!\n"
We can emit:
adr r0, .CPI0
bl printf
bx lr
.CPI0: .asciz "hello, world!\n"
This can cause significant code size savings when many small strings are used in one
function (4 bytes per string).
This recommit contains fixes for a nasty bug related to fast-isel fallback - because
fast-isel doesn't know about this optimization, if it runs and emits references to
a string that we inline (because fast-isel fell back to SDAG) we will end up
with an inlined string and also an out-of-line string, and we won't emit the
out-of-line string, causing backend failures.
It also contains fixes for emitting .text relocations which made the sanitizer
bots unhappy.
llvm-svn: 281715
Neil Hickey [Fri, 16 Sep 2016 10:15:06 +0000 (10:15 +0000)]
Improve handling of floating point literals in OpenCL to only use double precision if the target supports fp64
https://reviews.llvm.org/D24235
llvm-svn: 281714
Kirill Bobyrev [Fri, 16 Sep 2016 10:12:08 +0000 (10:12 +0000)]
[clang-tidy] Bugfix for readability-redundant-control-flow check
This check did not create FixItHints when the statement before the redundant
control flow was not followed by a semicolon.
Patch by Malcolm Parsons!
Reviewers: alexfh
Differential Revision: https://reviews.llvm.org/D24500
llvm-svn: 281713
Eric Fiselier [Fri, 16 Sep 2016 10:04:38 +0000 (10:04 +0000)]
Touch up [[clang::require_constant_initialization]] docs
* Fix an egregious comma usage.
* Remove the `static` keyword in the example since the variables should have
external linkage.
* Use C++11 attributes in the example.
llvm-svn: 281712
Neil Hickey [Fri, 16 Sep 2016 09:38:11 +0000 (09:38 +0000)]
Testing commit rights. Removing trailing white space from test file.
llvm-svn: 281711
Kirill Bobyrev [Fri, 16 Sep 2016 08:45:19 +0000 (08:45 +0000)]
[clang-rename] Merge rename-{at|all} & optimise.
Having both rename-at and rename-all both seems confusing and introduces
unneeded difficulties. After merging rename-at and rename-all maintaining main
function wrappers and custom help becomes redundant while CLI becomes less
confusing.
D24224 (which was the original patch causing buildbot failures) wasn't aware of
bugs caused by passing both -offset and -qualified-name. After D24224 was landed
it caused buildbot failures and therefor I just reverted it.
Two things that make this patch different from D24224 are:
* unittests/clang-rename was deleted, because it is unmaintained and doesn't do
much.
* Passing both `-offset` and `-qualified-name` isn't allowed anymore for the
sake of preventing bugs.
This patch is a trivial enhancement of accepted D24224 revision.
Tested with `ninja check-all`.
Differential Revision: https://reviews.llvm.org/D24567
llvm-svn: 281710
Eric Fiselier [Fri, 16 Sep 2016 08:16:07 +0000 (08:16 +0000)]
Fix side effect in assertion
llvm-svn: 281709
Eric Christopher [Fri, 16 Sep 2016 07:33:15 +0000 (07:33 +0000)]
Move the Mangler from the AsmPrinter down to TLOF and clean up the
TLOF API accordingly.
llvm-svn: 281708
Eric Christopher [Fri, 16 Sep 2016 07:32:58 +0000 (07:32 +0000)]
Remove unused function getMang().
llvm-svn: 281707
Stephen Hines [Fri, 16 Sep 2016 07:21:24 +0000 (07:21 +0000)]
Fix unused result from sign extending an Offset.
Summary:
Offset was doubled in size, but the assignment was missing. We just need
to reassign to the original variable in this case to fix it.
Reviewers: cfe-commits, echristo
Subscribers: meikeb
Differential Revision: https://reviews.llvm.org/D24648
llvm-svn: 281706
Tobias Grosser [Fri, 16 Sep 2016 05:48:09 +0000 (05:48 +0000)]
Update CFGPrinter -> CFGPrinterLegacyPass
.. to match recent changes in LLVM that broke the Polly compilation.
llvm-svn: 281705
Rui Ueyama [Fri, 16 Sep 2016 04:32:33 +0000 (04:32 +0000)]
Use functions in DebugInfoPDB to create dummy PDB file.
I don't think we are creating valid PDB file here,
but it is okay because we have never created valid PDBs before.
llvm-svn: 281704
Justin Lebar [Fri, 16 Sep 2016 04:14:02 +0000 (04:14 +0000)]
[CUDA] [doc] Note that you can use std::min/max from device code with C++14.
llvm-svn: 281702
Rui Ueyama [Fri, 16 Sep 2016 03:52:45 +0000 (03:52 +0000)]
Demangle symbols in "undefined symbol" error message.
llvm-svn: 281698
Eric Fiselier [Fri, 16 Sep 2016 03:47:53 +0000 (03:47 +0000)]
Attempt to fix Sphinx build
llvm-svn: 281697
Todd Fiala [Fri, 16 Sep 2016 03:07:14 +0000 (03:07 +0000)]
add availability check to DarwinLog event tests
The pexpect-based tests properly checked for the stub reporting
DarwinLog support. The event-based ones did not. This is fixed
here. Swift CI bots are not currently building debugserver on
macOS, so they don't have the DarwinLog support even when they
pass the macOS 10.12 check.
llvm-svn: 281696
Eric Fiselier [Fri, 16 Sep 2016 02:51:26 +0000 (02:51 +0000)]
Update _LIBCPP_EXCEPTION_ABI doc with @mclow's feedback
llvm-svn: 281695
David Majnemer [Fri, 16 Sep 2016 02:43:36 +0000 (02:43 +0000)]
Add a test for r280191
llvm-svn: 281694
John McCall [Fri, 16 Sep 2016 02:40:45 +0000 (02:40 +0000)]
Alter the iOS/tvOS ARM64 C++ ABI to ignore the upper half of the
virtual table offset in a member function pointer.
We are reserving this space for future ABI use relating to alternative
v-table configurations. In the meantime, continue to zero-initialize
this space when actually emitting a member pointer literal.
This will successfully interoperate with existing compilers.
Future versions of the compiler may place additional data in
this location, and at that point, code emitted by compilers
prior to this patch will fail if exposed to such a member pointer.
This is therefore a somewhat hard ABI break. However, because
it is limited to an uncommon case of an uncommon language feature,
and especially because interoperation with the standard library
does not depend on member pointers, we believe that with a
sufficiently advance compiler change the impact of this break
will be minimal in practice.
llvm-svn: 281693
Eric Fiselier [Fri, 16 Sep 2016 02:16:23 +0000 (02:16 +0000)]
Move _LIBCPP_INLINE_VISIBILITY to first declaration in <propagate_const>
llvm-svn: 281692
Eric Fiselier [Fri, 16 Sep 2016 02:09:26 +0000 (02:09 +0000)]
Move _LIBCPP_INLINE_VISIBILITY to first declaration in sstream.
llvm-svn: 281691
Jim Ingham [Fri, 16 Sep 2016 01:41:27 +0000 (01:41 +0000)]
First tests for serializing breakpoints.
Plus a few bug fixes I found along the way.
llvm-svn: 281690
Vitaly Buka [Fri, 16 Sep 2016 01:38:46 +0000 (01:38 +0000)]
Revert "[asan] Avoid lifetime analysis for allocas with can be in ambiguous state"
This approach is not good enough. Working on the new solution.
This reverts commit r280907.
llvm-svn: 281689
Vitaly Buka [Fri, 16 Sep 2016 01:38:43 +0000 (01:38 +0000)]
Revert "[asan] Add flag to allow lifetime analysis of problematic allocas"
This approach is not good enough. Working on the new solution.
This reverts commit r281126.
llvm-svn: 281688
Vitaly Buka [Fri, 16 Sep 2016 01:37:17 +0000 (01:37 +0000)]
[asan] Remove the test as the fix is going to be removed
Summary:
I need to redu solution, existing is not good enough.
PR28267
Reviewers: eugenis
Subscribers: llvm-commits, kubabrecka
Differential Revision: https://reviews.llvm.org/D24490
llvm-svn: 281687
Stephen Hines [Fri, 16 Sep 2016 01:07:04 +0000 (01:07 +0000)]
Do not warn about format strings that are indexed string literals.
Summary:
The warning for a format string not being a string literal and therefore
being potentially insecure is overly strict for indices into string
literals. This fix checks if the index into the string literal is
precomputable. If that's the case it will check if the suffix of that
string literal is a valid format string string literal. It will still
issue the aforementioned warning for out of range indices into the
string literal.
Patch by Meike Baumgärtner (meikeb)
Reviewers: rsmith
Subscribers: srhines, cfe-commits
Differential Revision: https://reviews.llvm.org/D24584
llvm-svn: 281686
Mehdi Amini [Fri, 16 Sep 2016 00:38:18 +0000 (00:38 +0000)]
Fix autoupgrade logic for Objective-C class properties module flag
Previous we were issuing an error when linking a module containing
the new Objective-C metadata structure for class properties with an
"old" one.
Now instead we downgrade the module flag so that the Objective-C
runtime does not expect the new metadata structure.
This is consistent with what ld64 is doing on binary files.
Differential Revision: https://reviews.llvm.org/D24620
llvm-svn: 281685
Eric Fiselier [Fri, 16 Sep 2016 00:13:55 +0000 (00:13 +0000)]
Use _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY in valarray to support attribute((internal_linkage)).
The externally instantiated member functions must be declared using
_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY, not _LIBCPP_INLINE_VISIBILITY, in
order to be properly exported when using __attribute__((internal_linkage)).
Otherwise the explicit instantiations will obviously have internal linkage and
will not be exported from the dylib.
llvm-svn: 281684
Eric Fiselier [Fri, 16 Sep 2016 00:07:16 +0000 (00:07 +0000)]
Move inline attributes in filesystem to first declaration
llvm-svn: 281683
Akira Hatanaka [Fri, 16 Sep 2016 00:02:06 +0000 (00:02 +0000)]
[CodeGen][ObjC] Block captures should inherit the type of the captured
field in the enclosing lambda or block.
This patch fixes a bug in code-gen where it uses the type of the
declared variable rather than the type of the capture of the enclosing
lambda or block for the block capture. For example, in the following
function, code-gen currently uses i32* for the block capture "a" because
"a" is passed to foo1 as a reference, but it should use i32 since the
enclosing lambda captures "a" by value.
void foo1(int &a) {
auto lambda = [a]{
auto block1 = ^{
i = a;
};
block1();
};
lambda();
}
rdar://problem/
18586386
Differential Revision: https://reviews.llvm.org/D21104
llvm-svn: 281682
Eric Fiselier [Fri, 16 Sep 2016 00:00:48 +0000 (00:00 +0000)]
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/
39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
llvm-svn: 281681
Justin Lebar [Thu, 15 Sep 2016 23:44:13 +0000 (23:44 +0000)]
[CUDA] Don't try to run sanitizers on NVPTX.
Summary:
Sanitizers aren't supported on NVPTX -- don't try to run them.
This lets you e.g. pass -fsanitize=address and get asan on your host
code.
Reviewers: kcc
Subscribers: cfe-commits, tra, jhen
Differential Revision: https://reviews.llvm.org/D24640
llvm-svn: 281680
Kostya Serebryany [Thu, 15 Sep 2016 23:17:02 +0000 (23:17 +0000)]
[asan] fix window build
llvm-svn: 281679
Rui Ueyama [Thu, 15 Sep 2016 23:14:40 +0000 (23:14 +0000)]
Check /pdb output using llvm-pdbdump.
test/COFF/rsds.test checks only RSDS directory in a DLL and
didn't check the validity of the PDF file produced.
(Technically the produced PDB is not valid because it is really
a stub, but this test is still good to have.)
llvm-svn: 281678
Kostya Serebryany [Thu, 15 Sep 2016 23:02:20 +0000 (23:02 +0000)]
[asan] provide dummy implementations for __sanitizer_cov_trace_pc_*
llvm-svn: 281677
Hans Wennborg [Thu, 15 Sep 2016 23:01:03 +0000 (23:01 +0000)]
build_llvm_package.bat: Update to VS2015 and include LLDB
llvm-svn: 281676
Evgeniy Stepanov [Thu, 15 Sep 2016 22:34:53 +0000 (22:34 +0000)]
[asan] Reenable 64-bit allocator on android/aarch64.
This is a re-commit of r281371, with updated tests.
llvm-svn: 281674
Eric Fiselier [Thu, 15 Sep 2016 22:27:07 +0000 (22:27 +0000)]
[libc++] Fix and document visibility attributes for Clang, GCC and Windows.
Summary:
This patch fixes a number of problems with the visibility macros across GCC (on Unix) and Windows (DLL import/export semantics). All of the visibility macros are now documented under `DesignDocs/VisibilityMacros.rst`. Now I'll no longer forget the subtleties of each!
This patch adds two new visibility macros:
* `_LIBCPP_ENUM_VIS` for controlling the typeinfo of enum types. Only Clang supports this.
* `_LIBCPP_EXTERN_TEMPLATE_TYPE_VIS` for redefining visibility on explicit instantiation declarations. Clang and Windows require this.
After applying this patch GCC only emits one -Wattribute warning opposed to 30+.
Reviewers: mclow.lists, EricWF
Subscribers: beanz, mgorny, cfe-commits
Differential Revision: https://reviews.llvm.org/D24602
llvm-svn: 281673
Sanjay Patel [Thu, 15 Sep 2016 22:26:31 +0000 (22:26 +0000)]
[InstCombine] move folds for icmp (sh C2, Y), C1 in with other icmp+sh folds; NFCI
llvm-svn: 281672
Rui Ueyama [Thu, 15 Sep 2016 22:26:07 +0000 (22:26 +0000)]
Fix old copy-n-paste errors.
llvm-svn: 281671
Rui Ueyama [Thu, 15 Sep 2016 22:24:51 +0000 (22:24 +0000)]
Create PDB.h and move code to remove unnecessary #includes.
llvm-svn: 281670
Akira Hatanaka [Thu, 15 Sep 2016 22:19:25 +0000 (22:19 +0000)]
[Sema] Allow shifting a scalar operand by a vector operand.
r278501 inadvertently introduced a bug in which it disallowed shifting
scalar operands by vector operands when not compiling for OpenCL. This
commit fixes it.
Patch by Vladimir Yakovlev.
Differential Revision: https://reviews.llvm.org/D24467
llvm-svn: 281669
Anna Zaks [Thu, 15 Sep 2016 22:18:36 +0000 (22:18 +0000)]
[sanitizer] Fixup 2: Do not introduce __sanitizer namespace globally
This got committed by mistake. Should fix some bots.
llvm-svn: 281668
Kostya Serebryany [Thu, 15 Sep 2016 22:16:15 +0000 (22:16 +0000)]
[libFuzzer] make caller-callee feedback work with trace-pc-guard
llvm-svn: 281667
David L. Jones [Thu, 15 Sep 2016 22:12:26 +0000 (22:12 +0000)]
Simplify Clang's version number configuration in CMake.
Currently, the Clang version is computed as follows:
1. LLVM defines major, minor, and patch versions, all statically set. Today,
these are 4, 0, and 0, respectively.
2. The static version numbers are combined into PACKAGE_VERSION along with a
suffix, so the result today looks like "4.0.0svn".
3. Clang extracts CLANG_VERSION from PACKAGE_VERSION using a regexp. The regexp
allows the patch level to omitted, and drops any non-digit trailing values.
Today, this result looks like "4.0.0".
4. CLANG_VERSION is then split further into CLANG_VERSION_MAJOR and
CLANG_VERSION_MINOR. Today, these resolve to 4 and 0, respectively.
5. If CLANG_VERSION matches a regexp with three version components, then
CLANG_VERSION_PATCHLEVEL is extracted and the CLANG_HAS_VERSION_PATCHLEVEL
variable is set to 1. Today, these values are 0 and 1, respectively.
6. The CLANG_VERSION_* variables (and CLANG_HAS_VERSION_PATCHLEVEL) are
configured into [llvm/tools/clang/]include/clang/Basic/Version.inc
verbatim by CMake.
7. In [llvm/tools/clang/]include/clang/Basic/Version.h, macros are defined
conditionally, based on CLANG_HAS_VERSION_PATCHLEVEL, to compute
CLANG_VERSION_STRING as either a two- or three-level version number. Today,
this value is "4.0.0", because despite the patchlevel being 0, it was
matched by regexp and is thus "HAS"ed by the preprocessor. This string is
then used wherever Clang's "version" is needed [*].
[*] Including, notably, by compiler-rt, for computing its installation path.
This change collapses steps 2-5 by defaulting Clang to use LLVM's (non-string)
version components for the Clang version (see [*] for why not PACKAGE_VERSION),
and collapses steps 6 and 7 by simply writing CLANG_VERSION_STRING into
Version.inc. The Clang version today always uses the patchlevel form, so the
collapsed Version.inc does not have logic for a version without a patch level.
Historically speaking, this technique began with the VER file in r82085 (which
survives in the form of the regexp in #3). The major, minor, and patchlevel
versions were introduced by r106863 (which remains in #4-6). The VER file itself
was deleted in favor of the LLVM version number in r106914. On the LLVM side,
the individual LLVM_VERSION_MAJOR, LLVM_VERSION_MINOR, and PACKAGE_VERSION
weren't introduced for nearly two more years, until r150405.
llvm-svn: 281666