Commit Graph

2765 Commits

Author SHA1 Message Date
Craig Topper
686e2d6ca3 [APInt] Use getActiveBits() to implement logBase2 and ceilLogBase2. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313793 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-20 18:49:31 +00:00
Benjamin Kramer
07d86e274d Remove usages of deprecated std::unary_function and std::binary_function.
These are removed in C++17. We still have some users of
unary_function::argument_type, so just spell that typedef out. No
functionality change intended.

Note that many of the argument types are actually wrong :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313287 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-14 18:33:25 +00:00
Simon Atanasyan
679cc5075b [mips] Recognise the triple used by Debian for MIPS n32 ABI
Triples like mips64-linux-gnuabin32 are documented in this article:
https://wiki.debian.org/Multiarch/Tuples

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313231 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-14 06:50:05 +00:00
Mandeep Singh Grang
89c6743f22 [ADT] Enable reverse iteration for DenseMap
Reviewers: mehdi_amini, dexonsmith, dblaikie, davide, chandlerc, davidxl, echristo, efriedma

Reviewed By: dblaikie

Subscribers: rsmith, mgorny, emaste, llvm-commits

Differential Revision: https://reviews.llvm.org/D35043

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311730 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-24 23:02:48 +00:00
Pete Couperus
53355ce574 [ARC] Add ARC backend.
Add the ARC backend as an experimental target to lib/Target.
Reviewed at: https://reviews.llvm.org/D36331



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311667 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-24 15:40:33 +00:00
Renato Golin
aea1537f4d [Triple] Define OS Check for Haiku
This adds the OS check for the Haiku operating system, as it was
missing in the Triple class. Tests for x86_64-unknown-haiku and
i586-pc-haiku were also added.

These patches only affect Haiku and are completely harmless for
other platforms.

Patch by Calvin Hill <calvin@hakobaito.co.uk>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311153 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-18 10:35:42 +00:00
Florian Hahn
ace970e5d2 [Triple] Add isThumb and isARM functions.
Summary:
isThumb returns true for Thumb triples (little and big endian), isARM
returns true for ARM triples (little and big endian).
There are a few more checks using arm/thumb that are not covered by
those functions, e.g. that the architecture is either ARM or Thumb
(little endian) or ARM/Thumb little endian only.

Reviewers: javed.absar, rengolin, kristof.beyls, t.p.northover

Reviewed By: rengolin

Subscribers: llvm-commits, aemerson

Differential Revision: https://reviews.llvm.org/D34682

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310781 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-12 17:40:18 +00:00
Sam Parker
af93d17e0c [ARM][AArch64] ARMv8.3-A enablement
The beta ARMv8.3 ISA specifications have been released for AArch64
and AArch32, these can be found at:
https://developer.arm.com/products/architecture/a-profile/exploration-tools

An introduction to this architecture update can be found at:
https://community.arm.com/processors/b/blog/posts/armv8-a-architecture-2016-additions

This patch is the first in a series which will add ARM v8.3-A support
in LLVM and Clang. It adds the necessary changes that create targets
for both the ARM and AArch64 backends.

Differential Revision: https://reviews.llvm.org/D36514


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310561 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-10 09:41:00 +00:00
David Blaikie
fc1d1341ab PointerLikeTypeTraits: class->struct & remove the base definition
This simplifies implementations and removing the base definition paves
the way for detecting whether a type is 'pointer like'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310507 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-09 18:34:21 +00:00
Chandler Carruth
549896a736 [ADT] Add a much simpler loop to DenseMap::clear when the types are
POD-like and we can just splat the empty key across memory.

Sadly we can't optimize the normal loop well enough because we can't
turn the conditional store into an unconditional store according to the
memory model.

This loop actually showed up in a profile of code that was calling clear
as a serious source of time. =[

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310189 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-05 22:48:37 +00:00
Erich Keane
cc55cc2451 Remove Bitrig: LLVM Changes
Bitrig code has been merged back to OpenBSD, thus the OS has been abandoned.

Differential Revision: https://reviews.llvm.org/D35707


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308799 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-21 22:48:47 +00:00
Matthias Braun
01337d5a14 Support, IR, ADT: Check nullptr after allocation with malloc/realloc or calloc
As a follow up of the bad alloc handler patch, this patch introduces nullptr checks on pointers returned from the
malloc/realloc/calloc functions.  In addition some memory size assignments  are moved behind the allocation
of the corresponding memory to fulfill exception safe memory management (RAII).

patch by Klaus Kretzschmar

Differential Revision: https://reviews.llvm.org/D35414

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308576 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-20 01:30:39 +00:00
Chandler Carruth
cc60d7b17d [ADT] Add a default constructor and a bool conversion to function_ref.
The internal representation has a natural way to handle this and it
seems nicer than having to wrap this in an optional (with its own
separate flag).

This also matches how std::function works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307490 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-09 06:12:56 +00:00
Craig Topper
8614bf0c87 [APInt] Add a fastpath for the single word case of isOneValue to match isNullValue, isAllOnesValue, etc. NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307430 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-07 19:56:18 +00:00
Mandeep Singh Grang
812570f6d4 [llvm] Separate out reverse iteration flag into its own header
Summary: This will ease out adding reverse iteration flags to other containers by simply including the header.

Reviewers: mehdi_amini, dexonsmith, davide, dblaikie

Reviewed By: dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D35042

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307297 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-06 18:52:16 +00:00
Ed Schouten
fc7d8c45e2 Add support for Ananas platform
Ananas is a home-brew operating system, mainly for amd64 machines. After
using GCC for quite some time, it has switched to clang and never looked
back - yet, having to manually patch things is annoying, so it'd be much
nicer if this was in the official tree.

More information:

https://github.com/zhmu/ananas/
https://rink.nu/projects/ananas.html

Submitted by:	Rink Springer
Differential Revision:	https://reviews.llvm.org/D32937


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306237 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-25 08:19:37 +00:00
Craig Topper
c8bc59b0b3 [APInt] Make the single word cases of isMaxSignedValue/isMinSignedValue just compare with the expected value rather than counting bits. NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306155 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-23 20:28:52 +00:00
Craig Topper
1a9610bd3c [APInt] Use trailing bit counting methods instead of population count method in isAllOnesValue, isMaxSigendValue, and isMinSignedValue. NFCI
The trailing bit methods will early out if they find a bit of the opposite while popcount must always look at all bits. I also assume that more CPUs implement trailing bit counting with native instructions than population count.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306154 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-23 20:28:49 +00:00
Craig Topper
7584e452e6 [APInt] Move the single word cases of countTrailingZeros and countLeadingOnes inline for consistency with countTrailingOnes and countLeadingZeros. NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306153 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-23 20:28:45 +00:00
Pavel Labath
547bbfbdbd Fix build breakage caused by r306096
It seems some targets don't have std::strtof and friends. Hopefully,
dropping the std:: will be fine, as that's what the compiler recommends.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306098 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-23 13:13:06 +00:00
Pavel Labath
44499d7a41 [ADT] Add llvm::to_float
Summary:
The function matches the interface of llvm::to_integer, but as we are
calling out to a C library function, I let it take a Twine argument, so
we can avoid a string copy at least in some cases.

I add a test and replace a couple of existing uses of strtod with this
function.

Reviewers: zturner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D34518

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306096 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-23 12:55:02 +00:00
Craig Topper
4f1962c363 [APFloat] Move the integerPartWidth constant into APFloatBase. Remove integerPart typedef at file scope and just use the one in APFloatBase everywhere. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305652 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-18 18:15:41 +00:00
Eugene Zelenko
be884e2441 [ADT] Partial re-commit of r303383. Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305419 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-14 21:42:24 +00:00
Zachary Turner
a49d65c76c [StringExtras] overload toHex for ArrayRef<uint8_t>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305411 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-14 20:11:46 +00:00
Eugene Zelenko
60ef905f43 [ADT] Revert r305326 changes in BitVector.h to fix broken builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305332 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-13 22:32:38 +00:00
Eugene Zelenko
79ebf193fa [ADT] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305326 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-13 22:11:49 +00:00
Roman Lebedev
525bc29d72 [ADT] PointerUnion::getAddrOfPtr1(): fix/silence -Wcast-qual warning.
Summary:
Previously, when D33102 landed, this broke -Werror buildbots.

http://lab.llvm.org:8011/builders/clang-with-lto-ubuntu/builds/3249
```
FAILED: /home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/install/stage1/bin/clang++   -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_GLOBAL_ISEL -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Ilib/CodeGen/AsmPrinter -I/home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/lib/CodeGen/AsmPrinter -Iinclude -I/home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/include -fPIC -fvisibility-inlines-hidden -Werror -Werror=date-time -std=c++11 -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -fcolor-diagnostics -ffunction-sections -fdata-sections -O3    -UNDEBUG  -fno-exceptions -fno-rtti -MMD -MT lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/CodeViewDebug.cpp.o -MF lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/CodeViewDebug.cpp.o.d -o lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/CodeViewDebug.cpp.o -c /home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
In file included from /home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp:14:
In file included from /home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/lib/CodeGen/AsmPrinter/CodeViewDebug.h:17:
In file included from /home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.h:15:
In file included from /home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/include/llvm/IR/DebugInfoMetadata.h:26:
In file included from /home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/include/llvm/IR/Metadata.h:23:
/home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/include/llvm/ADT/PointerUnion.h:161:19: error: cast from 'void **' to 'const llvm::DISubprogram **' must have all intermediate pointers const qualified to be safe [-Werror,-Wcast-qual]
    return (PT1 *)Val.getAddrOfPointer();
                  ^
/home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/include/llvm/ADT/TinyPtrVector.h:177:18: note: in instantiation of member function 'llvm::PointerUnion<const llvm::DISubprogram *, llvm::SmallVector<const llvm::DISubprogram *, 4> *>::getAddrOfPtr1' requested here
      return Val.getAddrOfPtr1();
                 ^
/home/buildbot/Buildbot/Slave1a/clang-with-lto-ubuntu/llvm.src/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp:1885:33: note: in instantiation of member function 'llvm::TinyPtrVector<const llvm::DISubprogram *>::begin' requested here
    for (const DISubprogram *SP : MethodItr.second) {
                                ^
1 error generated.
```

Reviewers: dblaikie, akyrtzi

Reviewed By: dblaikie

Subscribers: joerg, mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D34153

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305319 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-13 20:33:51 +00:00
George Burgess IV
b94805cb8a [ADT] Add type-safe methods to FoldingSetImpl; NFC.
Thankfully, this hasn't uncovered any new bugs. With this, issues like
the one fixed in r305207 (hopefully) shouldn't happen again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305241 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-12 22:08:08 +00:00
George Burgess IV
4d6bb2d890 [ADT] Reduce duplication between {Contextual,}FoldingSet; NFC
This is a precursor to another change (coming soon) that aims to make
FoldingSet's API more type-safe. Without this, the type-safety change
would just duplicate 4 more public methods between the already very
similar classes.

This renames FoldingSetImpl to FoldingSetBase so it's consistent with
the FooBase -> FooImpl<T> -> Foo<T> convention we seem to have with
other containers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305231 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-12 20:52:53 +00:00
Kamil Rytarowski
c034fe3bb5 Initialize SubArch in class Triple
Summary:
LLDB built with asan on NetBSD detected issues in the following code:

```
void ArchSpec::Clear() {
  m_triple = llvm::Triple();
  m_core = kCore_invalid;
  m_byte_order = eByteOrderInvalid;
  m_distribution_id.Clear();
  m_flags = 0;
}
```

  --- lldb/source/Core/ArchSpec.cpp

Runtime error messages:

/public/pkgsrc-tmp/wip/lldb-netbsd/work/.buildlink/include/llvm/ADT/Triple.h:44:7: runtime error: load of value 32639, which is not a valid value for type 'SubArchType'
/public/pkgsrc-tmp/wip/lldb-netbsd/work/.buildlink/include/llvm/ADT/Triple.h:44:7: runtime error: load of value 3200171710, which is not a valid value for type 'SubArchType'
/public/pkgsrc-tmp/wip/lldb-netbsd/work/.buildlink/include/llvm/ADT/Triple.h:44:7: runtime error: load of value 3200171710, which is not a valid value for type 'SubArchType'

Correct this issue with initialization of SubArch() in the class Triple constructor.

Sponsored by <The NetBSD Foundation>

Reviewers: chandlerc, zturner

Reviewed By: zturner

Subscribers: llvm-commits, zturner

Differential Revision: https://reviews.llvm.org/D33845

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305178 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-12 00:28:14 +00:00
Francis Ricci
1805055420 [ADT] Make iterable SmallVector template overrides more specific
Summary:
This prevents the iterator overrides from being selected in
the case where non-iterator types are used as arguments, which
is of particular importance in cases where other overrides with
identical types exist.

Reviewers: dblaikie, bkramer, rafael

Subscribers: llvm-commits, efriedma

Differential Revision: https://reviews.llvm.org/D33919

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305105 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-09 20:31:53 +00:00
Craig Topper
5d4bfc7c8b [APInt] Fix the documentation for isOneValue. NFC
I copy and pasted from isNullValue and forgot to update it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304877 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-07 07:40:43 +00:00
Craig Topper
9082d12000 [APInt] Add a isOneValue method that can determine if a number is 1 by only using getActiveBits/countLeadingZeros
Previously you would have to use operator==(uint64_t) which does the getActiveBits call and a uint64_t comparison. But we can get all we need to know from the getActiveBits call.

This method will be used in another commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304854 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-07 00:57:57 +00:00
Davide Italiano
3dfb196736 [SCCIterator] Garbage collect dead code. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304845 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-06 23:41:12 +00:00
Chandler Carruth
e3e43d9d57 Sort the remaining #include lines in include/... and lib/....
I did this a long time ago with a janky python script, but now
clang-format has built-in support for this. I fed clang-format every
line with a #include and let it re-sort things according to the precise
LLVM rules for include ordering baked into clang-format these days.

I've reverted a number of files where the results of sorting includes
isn't healthy. Either places where we have legacy code relying on
particular include ordering (where possible, I'll fix these separately)
or where we have particular formatting around #include lines that
I didn't want to disturb in this patch.

This patch is *entirely* mechanical. If you get merge conflicts or
anything, just ignore the changes in this patch and run clang-format
over your #include lines in the files.

Sorry for any noise here, but it is important to keep these things
stable. I was seeing an increasing number of patches with irrelevant
re-ordering of #include lines because clang-format was used. This patch
at least isolates that churn, makes it easy to skip when resolving
conflicts, and gets us to a clean baseline (again).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304787 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-06 11:49:48 +00:00
Mandeep Singh Grang
20350be310 [cmake] Enable reverse iteration by default through build macro
Summary:
Reverse iteration can be turned on, by default, by setting -DLLVM_REVERSE_ITERATION:BOOL=ON during cmake.
With this enabled, we can uncover lots of cases of non-determinism in codegen by simply running our tests (without any other change).
We can then setup a buildbot which will have this turned on by default. Initially, a lot of unit tests will fail in this configuration.
Once we start fixing non-determinism issues, we can gradually make this a blocker for patches.

Reviewers: davide, dblaikie, mehdi_amini, dberlin

Reviewed By: dblaikie

Subscribers: probinson, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D33908

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304757 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-06 00:36:09 +00:00
David Blaikie
29e59c38ab Tidy up a bit of r304516, use SmallVector::assign rather than for loop
This might give a few better opportunities to optimize these to memcpy
rather than loops - also a few minor cleanups (StringRef-izing,
templating (to avoid std::function indirection), etc).

The SmallVector::assign(iter, iter) could be improved with the use of
SFINAE, but the (iter, iter) ctor and append(iter, iter) need it to and
don't have it - so, workaround it for now rather than bothering with the
added complexity.

(also, as noted in the added FIXME, these assign ops could potentially
be optimized better at least for non-trivially-copyable types)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304566 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-02 17:24:26 +00:00
Nikolai Bozhenov
404324ef9b [Nios2] Target registration
Reviewers: craig.topper, hfinkel, joerg, lattner, zvi

Reviewed By: craig.topper

Subscribers: oren_ben_simhon, igorb, belickim, tvvikram, mgorny, llvm-commits, pavel.v.chupin, DavidKreitzer

Differential Revision: https://reviews.llvm.org/D32669
Patch by AndreiGrischenko <andrei.l.grischenko@intel.com>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304144 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-29 09:48:30 +00:00
Daniel Berlin
5dcdd10cbc SmallPtrSetImpl/SmallPtrSet: Add a public value_type and key_type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303518 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-21 23:41:51 +00:00
Craig Topper
47c969db7e [APInt] Add support for dividing or remainder by a uint64_t or int64_t.
Summary:
This patch adds udiv/sdiv/urem/srem/udivrem/sdivrem methods that can divide by a uint64_t. This makes division consistent with all the other arithmetic operations.

This modifies the interface of the divide helper method to work on raw arrays instead of APInts. This way we can pass the uint64_t in for the RHS without wrapping it in an APInt. This required moving all the Quotient and Remainder allocation handling up to the callers. For udiv/urem this was as simple as just creating the Quotient/Remainder with the right size when they were declared. For udivrem we have to rely on reallocate not changing the contents of the variable LHS or RHS is aliased with the Quotient or Remainder APInts. We also have to zero the upper bits of Remainder and Quotient that divide doesn't write to if lhsWords/rhsWords is smaller than the width.

I've update the toString method to use the new udivrem.

Reviewers: hans, dblaikie, RKSimon

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33310

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303431 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-19 16:43:54 +00:00
Craig Topper
e1b5c7ac77 [APInt] Use b.negate() in place of b = -std::move(b). NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303411 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-19 07:37:25 +00:00
Adam Nemet
586584b84a Revert "[ADT] Fix some Clang-tidy modernize-use-using warnings; other minor fixes (NFC)."
This reverts commit r303383.

This breaks the modules-enabled macOS build with:

lib/Support/LockFileManager.cpp:86:7: error: declaration of 'gethostuuid' must be imported from module 'Darwin.POSIX.unistd' before it is required

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303402 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-19 02:56:37 +00:00
Eugene Zelenko
d687f9863a [ADT] Fix some Clang-tidy modernize-use-using warnings; other minor fixes (NFC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303383 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-18 21:27:11 +00:00
Akira Hatanaka
343e535d9c [ThinLTO] Do not assert when adding a module with a different but
compatible target triple

Currently, an assertion fails in ThinLTOCodeGenerator::addModule when
the target triple of the module being added doesn't match that of the
one stored in TMBuilder. This patch relaxes the constraint and makes
changes to allow target triples that only differ in their version
numbers on Apple platforms, similarly to what r228999 did.

rdar://problem/30133904

Differential Revision: https://reviews.llvm.org/D33291

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303326 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-18 03:52:29 +00:00
Craig Topper
ad0e6668a7 [Statistics] Add a method to atomically update a statistic that contains a maximum
Summary:
There are several places in the codebase that try to calculate a maximum value in a Statistic object. We currently do this in one of two ways:

  MaxNumFoo = std::max(MaxNumFoo, NumFoo);

or

  MaxNumFoo = (MaxNumFoo > NumFoo) ? MaxNumFoo : NumFoo;

The first version reads from MaxNumFoo one time and uncontionally rwrites to it. The second version possibly reads it twice depending on the result of the first compare.  But we have no way of knowing if the value was changed by another thread between the reads and the writes.

This patch adds a method to the Statistic object that can ensure that we only store if our value is the max and the previous max didn't change after we read it. If it changed we'll recheck if our value should still be the max or not and try again.

This spawned from an audit I'm trying to do of all places we uses the implicit conversion to unsigned on the Statistics objects. See my previous thread on llvm-dev https://groups.google.com/forum/#!topic/llvm-dev/yfvxiorKrDQ

Reviewers: dberlin, chandlerc, hfinkel, dblaikie

Reviewed By: chandlerc

Subscribers: llvm-commits, sanjoy

Differential Revision: https://reviews.llvm.org/D33301

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303318 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-18 00:51:39 +00:00
Zachary Turner
66b46e1a8b [BitVector] Add find_[first,last]_[set,unset]_in.
A lot of code is duplicated between the first_last and the
next / prev methods.  All of this code can be shared if they
are implemented in terms of find_first_in(Begin, End) etc,
in which case find_first = find_first_in(0, Size) and find_next
is find_first_in(Prev+1, Size), with similar reductions for
the other methods.

Differential Revision: https://reviews.llvm.org/D33104

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303269 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-17 15:49:45 +00:00
Craig Topper
f44cb969f0 [APInt] Use getWord to shorten some code. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303236 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-17 06:45:30 +00:00
Francis Visoiu Mistrih
1179b5ee40 BitVector: add iterators for set bits
Differential revision: https://reviews.llvm.org/D32060

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303227 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-17 01:07:53 +00:00
Eugene Zelenko
6f42331357 [ADT] Fix some Clang-tidy modernize-use-using warnings; other minor fixes (NFC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303221 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-16 23:10:25 +00:00
Zachary Turner
1ccd7cfa2b [StringExtras] Add llvm::to_integer.
This is a very thin wrapper around StringRef::getAsInteger.
It serves three purposes.

1) It allows a cleaner syntax when you have something other than
   a StringRef - for example, a std::string or an llvm::SmallString.
   Previously, in this case you would have to write something like:
      StringRef(MyStr).getAsInteger(0, Result)
   by explicitly constructing a temporary StringRef.  This can be
   done implicitly however with the new function by just writing:
      to_integer(MyStr, ...).
2) Correcting the travesty that is getAsInteger's return value.
   This function returns true on success, and false on failure.
   While this may cause confusion with people familiar with the
   getAsInteger API, there seems to be widespread agreement that
   the return semantics of getAsInteger was a mistake.
3) It allows the Radix to be deduced as a default argument by
   putting it last in the parameter list.  Most uses of getAsInteger
   pass 0 for the first argument.  With this syntax it can just be
   omitted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303011 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-14 17:11:05 +00:00