Daniel Sanders [Thu, 12 Nov 2015 13:33:00 +0000 (13:33 +0000)]
Implement .reloc (constant offset only) with support for R_MIPS_NONE and R_MIPS_32.
Summary:
Support for R_MIPS_NONE allows us to parse MIPS16's usage of .reloc.
R_MIPS_32 was included to be able to better test the directive.
Targets can add their relocations by overriding MCAsmBackend::getFixupKind().
Subscribers: grosbach, rafael, majnemer, dsanders, llvm-commits
Differential Revision: http://reviews.llvm.org/D13659
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252888
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Zlatko Buljan [Thu, 12 Nov 2015 13:21:33 +0000 (13:21 +0000)]
[mips][microMIPS] Implement LWM16, SB16, SH16, SW16, SWSP and SWM16 instructions
Differential Revision: http://reviews.llvm.org/D11406
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252885
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Vasileios Kalintiris [Thu, 12 Nov 2015 13:19:11 +0000 (13:19 +0000)]
Revert "[mips] Use correct frame register for DWARF info when dynamically realigning the stack."
This reverts commit r252882. LLParser complains for invalid field 'function'
in DISubprogram.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252884
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Hans Wennborg [Thu, 12 Nov 2015 13:18:20 +0000 (13:18 +0000)]
Remove mention of {ADD,SUB}_PARTS. They were removed in r26255.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252883
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Vasileios Kalintiris [Thu, 12 Nov 2015 13:04:16 +0000 (13:04 +0000)]
[mips] Use correct frame register for DWARF info when dynamically realigning the stack.
Summary:
This patch overrides TargetFrameLowering::getFrameIndexReference() in order to
specify the correct register when the function needs dynamic stack realignment.
The values returned from this function are used in order to create DW_AT_locations
for DWARF info. These locations would use the wrong registers as it's been
reported in PR25028.
Reviewers: dsanders
Subscribers: dean, llvm-commits
Differential Revision: http://reviews.llvm.org/D13511
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252882
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James Molloy [Thu, 12 Nov 2015 12:39:41 +0000 (12:39 +0000)]
[InstCombine] Add trivial folding (bitreverse (bitreverse x)) -> x
There are plenty more instcombines we could probably do with bitreverse, but this seems like a very obvious and trivial starting point and was brought up by Hal in his review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252879
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James Molloy [Thu, 12 Nov 2015 12:29:09 +0000 (12:29 +0000)]
[SDAG] Introduce a new BITREVERSE node along with a corresponding LLVM intrinsic
Several backends have instructions to reverse the order of bits in an integer. Conceptually matching such patterns is similar to @llvm.bswap, and it was mentioned in http://reviews.llvm.org/D14234 that it would be best if these patterns were matched in InstCombine instead of reimplemented in every different target.
This patch introduces an intrinsic @llvm.bitreverse.i* that operates similarly to @llvm.bswap. For plumbing purposes there is also a new ISD node ISD::BITREVERSE, with simple expansion and promotion support.
The intention is that InstCombine's BSWAP detection logic will be extended to support BITREVERSE too, and @llvm.bitreverse intrinsics emitted (if the backend supports lowering it efficiently).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252878
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James Molloy [Thu, 12 Nov 2015 10:55:20 +0000 (10:55 +0000)]
Revert "Revert "[FunctionAttrs] Identify norecurse functions""
This reapplies this patch, with test fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252871
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Kuba Brecka [Thu, 12 Nov 2015 09:40:29 +0000 (09:40 +0000)]
[Object, MachO] Mark symbols from DATA and BSS sections as ST_Data
In `MachOObjectFile::getSymbolType` we currently always return `SymbolRef::ST_Function` for symbols from any section. In order for llvm-symbolizer to correctly symbolize Mach-O globals, symbols from data and BSS sections should return `SymbolRef::ST_Data`.
Differential Revision: http://reviews.llvm.org/D14576
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252867
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Amjad Aboud [Thu, 12 Nov 2015 09:38:54 +0000 (09:38 +0000)]
dwarfdump: Added macro support to llvm-dwarfdump tool.
Added "macro" option to "-debug-dump" flag, which trigger parsing and dumping of the ".debug_macinfo" section.
Differential Revision: http://reviews.llvm.org/D14294
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252866
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Dylan McKay [Thu, 12 Nov 2015 09:26:44 +0000 (09:26 +0000)]
Add AVR backend skeleton
This adds part of the target info code, and adds modifications to
the build scripts so that AVR is recognized a supported, experimental
backend.
It does not include any AVR-specific code, just the bare sources required
for a backend to exist.
From D14039.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252865
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James Molloy [Thu, 12 Nov 2015 09:05:43 +0000 (09:05 +0000)]
Revert "[FunctionAttrs] Identify norecurse functions"
This reverts commit r252862. This introduced test failures and I'm reverting while I investigate how this happened.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252863
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James Molloy [Thu, 12 Nov 2015 08:53:04 +0000 (08:53 +0000)]
[FunctionAttrs] Identify norecurse functions
A function can be marked as norecurse if:
* The SCC to which it belongs has cardinality 1; and either
a) It does not call any non-norecurse function. This includes self-recursion; or
b) It only has one callsite and the function that callsite is within is marked norecurse.
a) is best propagated bottom-up and b) is best propagated top-down.
We build up the norecurse attributes bottom-up using the existing SCC pass, and mark functions with no obvious recursion (but not provably norecurse) to sweep later, top-down.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252862
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David Blaikie [Thu, 12 Nov 2015 06:33:14 +0000 (06:33 +0000)]
Mostly revert 252842 due to failures on some buildbots.
I imagine there's some UB in here somewhere, though Valgrind doesn't
seem to have picked it up (not sure if I have a working asan build right
now to test there).
GDB bot seems to be crashing:
http://lab.llvm.org:8011/builders/clang-x86_64-ubuntu-gdb-75/builds/26267/steps/check-all/logs/FAIL%3A%20LLVM%3A%3Adwarfdump-dwp.test
Hexagon ELF bot is, presumably, just getting different output:
http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/32927/steps/check-all/logs/FAIL%3A%20LLVM%3A%3Adwarfdump-dwp.test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252859
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Dan Gohman [Thu, 12 Nov 2015 06:10:03 +0000 (06:10 +0000)]
[WebAssembly] Switch to MC for instruction printing.
This encompasses several changes which are all interconnected:
- Use the MC framework for printing almost all instructions.
- AsmStrings are now live.
- This introduces an indirection between LLVM vregs and WebAssembly registers,
and a new pass, WebAssemblyRegNumbering, for computing a basic the mapping.
This addresses some basic issues with argument registers and unused registers.
- The way ARGUMENT instructions are handled no longer generates redundant
get_local+set_local for every argument.
This also changes the assembly syntax somewhat; most notably, MC's printing
use sigils on label names, so those are no longer present, and push/pop now
have a sigil to keep them unambiguous.
The usage of set_local/get_local/$push/$pop will continue to evolve
significantly. This patch is just one step of a larger change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252858
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Mike Aizatsky [Thu, 12 Nov 2015 04:38:40 +0000 (04:38 +0000)]
output_csv libfuzzer option
Summary:
The option outputs statistics in CSV format preceded by 1 header line.
This is intended for machine processing of the output.
-verbosity=0 should likely be set.
Differential Revision: http://reviews.llvm.org/D14600
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252856
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David Blaikie [Thu, 12 Nov 2015 01:57:33 +0000 (01:57 +0000)]
dwarfdump: Add error checking to fix the buildbots/correctness
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252845
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David Blaikie [Thu, 12 Nov 2015 01:41:59 +0000 (01:41 +0000)]
dwarfdump: Add some error handling for DWP index sections of the wrong size
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252843
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David Blaikie [Thu, 12 Nov 2015 01:41:52 +0000 (01:41 +0000)]
dwarfdump: Dump the contents of DWP indexes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252842
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Matthias Braun [Thu, 12 Nov 2015 01:02:47 +0000 (01:02 +0000)]
LegalizeDAG: Fix and improve FCOPYSIGN/FABS legalization
- Factor out code to query and modify the sign bit of a floatingpoint
value as an integer. This also works if none of the targets integer
types is big enough to hold all bits of the floatingpoint value.
- Legalize FABS(x) as FCOPYSIGN(x, 0.0) if FCOPYSIGN is available,
otherwise perform bit manipulation on the sign bit. The previous code
used "x >u 0 ? x : -x" which is incorrect for x being -0.0! It also
takes 34 instructions on ARM Cortex-M4. With this patch we only
require 5:
vldr d0, LCPI0_0
vmov r2, r3, d0
lsrs r2, r3, #31
bfi r1, r2, #31, #1
bx lr
(This could be further improved if the compiler would recognize that
r2, r3 is zero).
- Only lower FCOPYSIGN(x, y) = sign(x) ? -FABS(x) : FABS(x) if FABS is
available otherwise perform bit manipulation on the sign bit.
- Perform the sign(x) test by masking out the sign bit and comparing
with 0 rather than shifting the sign bit to the highest position and
testing for "<s 0". For x86 copysignl (on 80bit values) this gets us:
testl $32768, %eax
rather than:
shlq $48, %rax
sets %al
testb %al, %al
Differential Revision: http://reviews.llvm.org/D11172
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252839
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Kostya Serebryany [Thu, 12 Nov 2015 01:02:01 +0000 (01:02 +0000)]
[libFuzzer] experimental flag -drill (another search heuristic; Mike Aizatsky's idea)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252838
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Manman Ren [Thu, 12 Nov 2015 00:54:04 +0000 (00:54 +0000)]
[TLS on Darwin] use a different mask for tls calls on x86-64.
Calls involved in thread-local variable lookup save more registers
than normal calls.
rdar://problem/
23073171
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252837
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David Blaikie [Thu, 12 Nov 2015 00:44:35 +0000 (00:44 +0000)]
dwarfdump: Use the right enum for the tu_index section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252835
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David Blaikie [Thu, 12 Nov 2015 00:42:49 +0000 (00:42 +0000)]
dwarfdump: add command line support for dumping the tu_index section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252830
91177308-0d34-0410-b5e6-
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Xinliang David Li [Thu, 12 Nov 2015 00:32:17 +0000 (00:32 +0000)]
Fix problems in coding style
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252829
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Quentin Colombet [Wed, 11 Nov 2015 23:31:46 +0000 (23:31 +0000)]
[ARM] Enable shrink-wrapping by default.
Differential Revision: http://reviews.llvm.org/D14357
rdar://problem/
21942589
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252825
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Reid Kleckner [Wed, 11 Nov 2015 23:09:31 +0000 (23:09 +0000)]
[WinEH] Don't forward branches across empty EH pad BBs
For really simple SEH catchpads, we tried to forward the invoke unwind
edge across the empty block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252822
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Chad Rosier [Wed, 11 Nov 2015 23:00:59 +0000 (23:00 +0000)]
[LIR] General refactor to improve compile-time and simplify code.
First create a list of candidates, then transform. This simplifies the code in
that you have don't have to worry that you may be using an invalidated
iterator.
Previously, each time we created a memset/memcpy we would reevaluate the entire
loop potentially resulting in lots of redundant work for large basic blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252817
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Hemant Kulkarni [Wed, 11 Nov 2015 22:14:58 +0000 (22:14 +0000)]
Fix docs build break for revision r252798
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252812
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David Majnemer [Wed, 11 Nov 2015 21:57:16 +0000 (21:57 +0000)]
[IR] Add support for empty tokens
When working with tokens, it is often the case that one has instructions
which consume a token and produce a new token. Currently, we have no
mechanism to represent an initial token state.
Instead, we can create a notional "empty token" by inventing a new
constant which captures the semantics we would like. This new constant
is called ConstantTokenNone and is written textually as "token none".
Differential Revision: http://reviews.llvm.org/D14581
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252811
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Chris Bieneman [Wed, 11 Nov 2015 21:54:31 +0000 (21:54 +0000)]
[CMake] Fixing passthrough for variables starting with the sub-project name
This allows TEST_SUITE variables to be passed from the top-level CMake into the external project.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252810
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Sanjoy Das [Wed, 11 Nov 2015 21:38:02 +0000 (21:38 +0000)]
Introduce deoptimization operand bundles
Summary:
This change introduces the notion of "deoptimization" operand bundles.
LLVM can recognize and optimize these in more precise ways than it can a
generic "unknown" operand bundles.
The current form of this special recognition / optimization is an enum
entry in LLVMContext, a LangRef blurb and a verifier rule. Over time we
will teach LLVM to do more aggressive optimization around deoptimization
operand bundles, exploiting known facts about kinds of state
deoptimization operand bundles are allowed to track.
Reviewers: reames, majnemer, chandlerc, dexonsmith
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14551
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252806
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Mike Aizatsky [Wed, 11 Nov 2015 21:28:40 +0000 (21:28 +0000)]
Adding qualifier for make_unique.
Summary: MSVC gets confused.
Differential Revision: http://reviews.llvm.org/D14585
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252804
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Mike Aizatsky [Wed, 11 Nov 2015 20:58:20 +0000 (20:58 +0000)]
sancov tool in c++
First batch of sancov.py rewrite in c++.
Supports "-print" and "-coveredfns" commands.
Followup to http://reviews.llvm.org/D14356 in a better location.
Differential Revision: http://reviews.llvm.org/D14579
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252801
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Paul Robinson [Wed, 11 Nov 2015 20:49:32 +0000 (20:49 +0000)]
Report Windows error code in a fatal error after a system call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252800
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David Blaikie [Wed, 11 Nov 2015 20:44:52 +0000 (20:44 +0000)]
unique_ptrify the AllocValueProfData helper function introduced in r252783
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252799
91177308-0d34-0410-b5e6-
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Hemant Kulkarni [Wed, 11 Nov 2015 20:41:43 +0000 (20:41 +0000)]
[Symbolizer]: Add -pretty-print option
Differential Revision: http://reviews.llvm.org/D13671
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252798
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Akira Hatanaka [Wed, 11 Nov 2015 20:35:42 +0000 (20:35 +0000)]
Move the enum attributes defined in Attributes.h to a table-gen file.
This is a step towards consolidating some of the information regarding
attributes in a single place.
This patch moves the enum attributes in Attributes.h to the table-gen
file. Additionally, it adds definitions of target independent string
attributes that will be used in follow-up commits by the inliner to
check attribute compatibility.
rdar://problem/
19836465
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252796
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Yunzhong Gao [Wed, 11 Nov 2015 19:59:08 +0000 (19:59 +0000)]
Add a libLTO diagnostic handler that supports lto_get_error_message API
This is a follow-up from the previous discussion on the thread:
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-
20151019/307763.html
The LibLTO lto_get_error_message() API reads error messages from a std::string
sLastErrorString. Instead of passing this string around as an argument, this
patch creates a diagnostic handler and then sends this handler to the
constructor of LTOCodeGenerator.
Differential Revision: http://reviews.llvm.org/D14313
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252791
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Geoff Berry [Wed, 11 Nov 2015 19:42:52 +0000 (19:42 +0000)]
[DAGCombiner] Improve zextload optimization.
Summary:
Don't fold
(zext (and (load x), cst)) -> (and (zextload x), (zext cst))
if
(and (load x) cst)
will match as a zextload already and has additional users.
For example, the following IR:
%load = load i32, i32* %ptr, align 8
%load16 = and i32 %load, 65535
%load64 = zext i32 %load16 to i64
store i32 %load16, i32* %dst1, align 4
store i64 %load64, i64* %dst2, align 8
used to produce the following aarch64 code:
ldr w8, [x0]
and w9, w8, #0xffff
and x8, x8, #0xffff
str w9, [x1]
str x8, [x2]
but with this change produces the following aarch64 code:
ldrh w8, [x0]
str w8, [x1]
str x8, [x2]
Reviewers: resistor, mcrosier
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14340
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252789
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David Blaikie [Wed, 11 Nov 2015 19:40:49 +0000 (19:40 +0000)]
dwarfdump: DWP type unit index dumping skeleton
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252786
91177308-0d34-0410-b5e6-
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Xinliang David Li [Wed, 11 Nov 2015 19:31:53 +0000 (19:31 +0000)]
Refactoring and fix another instance of asan error
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252783
91177308-0d34-0410-b5e6-
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David Blaikie [Wed, 11 Nov 2015 19:30:47 +0000 (19:30 +0000)]
Format my previous commit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252782
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David Blaikie [Wed, 11 Nov 2015 19:28:21 +0000 (19:28 +0000)]
dwarfdump: First piece of support for DWP dumping
Just a tiny piece of index dumping - the header in this instance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252781
91177308-0d34-0410-b5e6-
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Hemant Kulkarni [Wed, 11 Nov 2015 19:24:08 +0000 (19:24 +0000)]
Test commit after password reset
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252779
91177308-0d34-0410-b5e6-
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Joseph Tremoulet [Wed, 11 Nov 2015 19:21:09 +0000 (19:21 +0000)]
[WinEH] Only generate UnwindHelp slot for MSVCXX
Summary: Other personalities don't use this special frame slot.
Reviewers: majnemer, andrew.w.kaylor, rnk
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14580
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252778
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Dawn Perchik [Wed, 11 Nov 2015 18:47:36 +0000 (18:47 +0000)]
Support: Recognize Borland DWARF extensions.
This patch adds DWARF values for the Delphi language and Borland C++
language extensions.
Reviewed by: dblaikie
Subscribers: llvm-commits, majnemer
Differential Revision: http://reviews.llvm.org/D14522
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252776
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Matt Arsenault [Wed, 11 Nov 2015 18:44:33 +0000 (18:44 +0000)]
Add target preference for GatherAllAliases max depth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252775
91177308-0d34-0410-b5e6-
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Colin LeMahieu [Wed, 11 Nov 2015 18:11:06 +0000 (18:11 +0000)]
Reverting r252760
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252770
91177308-0d34-0410-b5e6-
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Dehao Chen [Wed, 11 Nov 2015 18:09:47 +0000 (18:09 +0000)]
clang-format lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252769
91177308-0d34-0410-b5e6-
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Dehao Chen [Wed, 11 Nov 2015 18:08:18 +0000 (18:08 +0000)]
Emit discriminator for inlined callsites.
Summary: Inlined callsites need to be emitted in debug info so that sample profile can be annotated to the correct inlined instance.
Reviewers: dnovillo, dblaikie
Subscribers: dblaikie, llvm-commits
Differential Revision: http://reviews.llvm.org/D14511
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252768
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Diego Novillo [Wed, 11 Nov 2015 17:54:37 +0000 (17:54 +0000)]
SamplePGO - Fix PR 25482 - Do not rely on llvm.dbg.cu for discriminators
The discriminators pass relied on the presence of llvm.dbg.cu to decide
whether to add discriminators, but this fails in the case where debug
info is only enabled partially when -fprofile-sample-use is active.
The reason llvm.dbg.cu is not present in these cases is to prevent
codegen from emitting debug info (as it is only used for the sample
profile pass).
This changes the discriminators pass to also emit discriminators even
when debug info is not being emitted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252763
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NAKAMURA Takumi [Wed, 11 Nov 2015 17:50:20 +0000 (17:50 +0000)]
llvm-config.cpp: Prune an obsolete \param. [-Wdocumentation]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252762
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Hemant Kulkarni [Wed, 11 Nov 2015 17:47:54 +0000 (17:47 +0000)]
[Symbolizer]: Add -pretty-print option
Differential Revision: http://reviews.llvm.org/D13671
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252760
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Sanjay Patel [Wed, 11 Nov 2015 17:24:56 +0000 (17:24 +0000)]
[MIPS] add overrides for isCheapToSpeculateCttz() and isCheapToSpeculateCtlz()
MIPS32 has instructions for efficient count-leading/trailing-zeros, so this should be
considered a cheap operation (and therefore fair game for speculation) for any MIPS32
implementation.
The net result of allowing this speculation for the regression tests in this patch is
that we get this code:
ctlz:
jr $ra
clz $2, $4
cttz:
addiu $1, $4, -1
not $2, $4
and $1, $2, $1
clz $1, $1
addiu $2, $zero, 32
jr $ra
subu $2, $2, $1
Instead of:
ctlz:
beqz $4, $BB0_2
addiu $2, $zero, 32
clz $2, $4
$BB0_2:
jr $ra
nop
cttz:
beqz $4, $BB1_2
addiu $2, $zero, 32
addiu $1, $4, -1
not $2, $4
and $1, $2, $1
clz $1, $1
addiu $2, $zero, 32
subu $2, $2, $1
$BB1_2:
jr $ra
nop
See D14469 for the larger motivation.
Differential Revision: http://reviews.llvm.org/D14500
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252755
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Artyom Skrobov [Wed, 11 Nov 2015 17:22:18 +0000 (17:22 +0000)]
test/DebugInfo/ARM/prologue_end.ll references thumbv1, which is invalid.
The committer didn't respond at http://reviews.llvm.org/D14338, so we've got to fix this for them.
This test doesn't pass with thumbv6, so I suppose what they meant is thumbv7.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252754
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Daniel Sanders [Wed, 11 Nov 2015 16:50:13 +0000 (16:50 +0000)]
[mips] Move MC tests for the DSP ASE into the standard format.
Summary:
Only DSPr2 is present because it appears we've never added DSPr1 tests.
We'll have to correct that in a later patch.
Reviewers: vkalintiris
Subscribers: llvm-commits, dsanders
Differential Revision: http://reviews.llvm.org/D14448
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252752
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Diego Novillo [Wed, 11 Nov 2015 16:39:22 +0000 (16:39 +0000)]
Properly fix unused variable in disable-assert builds.
I missed the side-effects of ParseBFI in my previous attempt (r252748).
Thanks dblaikie for the suggestion of adding a void use of the unused
variable instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252751
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Chris Bieneman [Wed, 11 Nov 2015 16:19:39 +0000 (16:19 +0000)]
[CMake] Make llvm_install_library_symlink respect LLVM_LIBDIR_SUFFIX.
This is required to support multilib install targets, and addresses a regression introduced in r252093.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252749
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Diego Novillo [Wed, 11 Nov 2015 16:14:52 +0000 (16:14 +0000)]
Remove unused variable in disable-assert builds. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252748
91177308-0d34-0410-b5e6-
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Chris Bieneman [Wed, 11 Nov 2015 16:14:03 +0000 (16:14 +0000)]
[CMake] Add support for building the llvm test-suite as part of an LLVM build using clang and lld
Summary:
This patch adds a new CMake module for working with ExternalProjects. This wrapper for ExternalProject supports using just-built tools and can hook up dependencies properly so that projects get cleared out.
The example usage here is for the llvm test-suite. In this example, the test-suite is setup as dependent on clang and lld if they are in-tree. If the clang or lld binaries change the test-suite is re-configured, cleaned, and rebuilt.
This cleanup and abstraction wrapping ExternalProject can be extended and applied to other runtime libraries like compiler-rt and libcxx.
Reviewers: samsonov, jroelofs, rengolin, jmolloy
Subscribers: jmolloy, llvm-commits
Differential Revision: http://reviews.llvm.org/D14513
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252747
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Douglas Katzman [Wed, 11 Nov 2015 15:51:16 +0000 (15:51 +0000)]
Visibly fail if attempting to encode register AH,BH,CH,DH in a REX-prefixed instruction.
Differential Revision: http://reviews.llvm.org/D13316
Fixes PR25003
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252743
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James Molloy [Wed, 11 Nov 2015 15:40:40 +0000 (15:40 +0000)]
[ARM] Combine BFIs together
If we have a chain of BFIs, we may be able to combine several together into one merged BFI. We can do this if the "from" bits from one BFI OR'd with the "from" bits from the other BFI form a contiguous range, and the same with the "to" bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252740
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Charlie Turner [Wed, 11 Nov 2015 15:03:46 +0000 (15:03 +0000)]
[SLP] Enable -slp-vectorize-hor by default.
Measurements primarily on AArch64 have shown this feature does not
significantly effect compile-time. The are no significant perf changes in LNT,
but for AArch64 at least, there are wins in third party benchmarks.
As discussed on llvm-dev, we're going to try turning this on by default and see
how other targets react to the change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252733
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Aaron Ballman [Wed, 11 Nov 2015 14:57:28 +0000 (14:57 +0000)]
Silencing a signed vs unsigned type mismatch warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252732
91177308-0d34-0410-b5e6-
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Aaron Ballman [Wed, 11 Nov 2015 13:44:06 +0000 (13:44 +0000)]
Silencing nine warnings for "enumeral and non-enumeral type in conditional expression"; NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252728
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Michael Kuperstein [Wed, 11 Nov 2015 11:44:31 +0000 (11:44 +0000)]
[X86] Replace LEAs with INC/DEC when profitable
If possible and profitable, replace lea %reg, 1(%reg) and lea %reg, -1(%reg) with inc %reg and dec %reg respectively.
Patch by: anton.nadolsky@intel.com
Differential Revision: http://reviews.llvm.org/D14059
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252722
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Yury Gribov [Wed, 11 Nov 2015 10:36:49 +0000 (10:36 +0000)]
[ASan] Enable optional ASan recovery.
Differential Revision: http://reviews.llvm.org/D14242
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252719
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Craig Topper [Wed, 11 Nov 2015 07:29:25 +0000 (07:29 +0000)]
[X86] Fix feature flags on some MMX register instructions that really were introduced with SSE or SSE2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252709
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Craig Topper [Wed, 11 Nov 2015 07:29:22 +0000 (07:29 +0000)]
[X86] Remove redundant MMX isel patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252708
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Kostya Serebryany [Wed, 11 Nov 2015 05:25:24 +0000 (05:25 +0000)]
[libFuzzer] better links
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252705
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Kostya Serebryany [Wed, 11 Nov 2015 05:20:55 +0000 (05:20 +0000)]
[libFuzzer] more trophies
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252704
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Matthias Braun [Wed, 11 Nov 2015 03:03:54 +0000 (03:03 +0000)]
lit: Show all output with --show-all, even in combination with --succinct
I missed an earlier exit for the --succinct case when I introduced the
-a option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252698
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Duncan P. N. Exon Smith [Wed, 11 Nov 2015 02:26:42 +0000 (02:26 +0000)]
ADT: Avoid relying on UB in ilist_node::getNextNode()
Re-implement `ilist_node::getNextNode()` and `getPrevNode()` without
relying on the sentinel having a "next" pointer. Instead, get access to
the owning list and compare against the `begin()` and `end()` iterators.
This only works when the node *can* get access to the owning list. The
new support is in `ilist_node_with_parent<>`, and any class `Ty`
inheriting from `ilist_node<NodeTy>` that wants `getNextNode()` and/or
`getPrevNode()` should inherit from
`ilist_node_with_parent<NodeTy, ParentTy>` instead. The requirements:
- `NodeTy` must have a `getParent()` function that returns the parent.
- `ParentTy` must have a `getSublistAccess()` static that, given a(n
ignored) `NodeTy*` (to determine which list), returns a member field
pointer to the appropriate `ilist<>`.
This isn't the cleanest way to get access to the owning list, but it
leverages the API already used in the IR hierarchy (see, e.g.,
`Instruction::getSublistAccess()`).
If anyone feels like ripping out the calls to `getNextNode()` and
`getPrevNode()` and replacing with direct iterator logic, they can also
remove the access function, etc., but as an incremental step, I'm
maintaining the API where it's currently used in tree.
If these requirements are *not* met, call sites with access to the ilist
can call `iplist<NodeTy>::getNextNode(NodeTy*)` directly, as in
ilistTest.cpp.
Why rewrite this?
The old code was broken, calling `getNext()` on a sentinel that possibly
didn't have a "next" pointer at all! The new code avoids that
particular flavour of UB (see the commit message for r252538 for more
details about the "lucky" memory layout that made this function so
interesting).
There's still some UB here: the end iterator gets downcast to `NodeTy*`,
even when it's a sentinel (which is typically
`ilist_half_node<NodeTy*>`). I'll tackle that in follow-up commits.
See this llvm-dev thread for more details:
http://lists.llvm.org/pipermail/llvm-dev/2015-October/091115.html
What's the danger?
There might be some code that relies on `getNextNode()` or
`getPrevNode()` *never* returning `nullptr` -- i.e., that relies on them
being broken when the sentinel is an `ilist_half_node<NodeTy>`. I tried
to root out those cases with the audits I did leading up to r252380, but
it's possible I missed one or two. I hope not.
(If (1) you have out-of-tree code, (2) you've reverted r252380
temporarily, and (3) you get some weird crashes with this commit, then I
recommend un-reverting r252380 and auditing the compile errors looking
for "strange" implicit conversions.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252694
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Akira Hatanaka [Wed, 11 Nov 2015 02:11:46 +0000 (02:11 +0000)]
Sort the enums in Attributes.h in case insensitive alphabetical order.
Sort the enums in preparation for moving the attributes to a table-gen
file.
rdar://problem/
19836465
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252692
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Dan Gohman [Wed, 11 Nov 2015 01:33:02 +0000 (01:33 +0000)]
[WebAssembly] Support non-legal argument and return types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252687
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Ahmed Bougacha [Wed, 11 Nov 2015 00:51:36 +0000 (00:51 +0000)]
[MC] Use LShr for constant evaluation of ">>" on non-arm64 darwin.
Follow-up to r235963: this matches other assemblers and is less
unexpected (e.g. PR23227).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252681
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Matthias Braun [Wed, 11 Nov 2015 00:41:58 +0000 (00:41 +0000)]
MachineInstr: addRegisterDefReadUndef() => setRegisterDefReadUndef()
This way we can not only add but also remove read undef flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252678
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Matt Arsenault [Wed, 11 Nov 2015 00:27:46 +0000 (00:27 +0000)]
AMDGPU: Print more fields in comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252677
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Sanjoy Das [Wed, 11 Nov 2015 00:16:41 +0000 (00:16 +0000)]
[ValueTracking] Remove untested / unreachable code, NFC
Right now isTruePredicate is only ever called with Pred == ICMP_SLE or
ICMP_ULE, and the ICMP_SLT and ICMP_ULT cases are dead. This change
removes the untested dead code so that the function is not misleading.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252676
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Matt Arsenault [Wed, 11 Nov 2015 00:01:36 +0000 (00:01 +0000)]
AMDGPU: Remove dead code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252675
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Matt Arsenault [Wed, 11 Nov 2015 00:01:32 +0000 (00:01 +0000)]
AMDGPU: Set isAllocatable = 0 on VS_32/VS_64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252674
91177308-0d34-0410-b5e6-
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Sanjoy Das [Tue, 10 Nov 2015 23:56:20 +0000 (23:56 +0000)]
[ValueTracking] Teach isImpliedCondition a new bitwise trick
Summary:
This change teaches isImpliedCondition to prove things like
(A | 15) < L ==> (A | 14) < L
if the low 4 bits of A are known to be zero.
Depends on D14391
Reviewers: majnemer, reames, hfinkel
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14392
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252673
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Sanjoy Das [Tue, 10 Nov 2015 23:56:15 +0000 (23:56 +0000)]
[ValueTracking] Use m_APInt instead of m_ConstantInt, NFC
This change would add functionality if isImpliedCondition worked on
vector types; but since it bail out on vector predicates this change is
an NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252672
91177308-0d34-0410-b5e6-
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Matthias Braun [Tue, 10 Nov 2015 23:23:05 +0000 (23:23 +0000)]
TableGen: Emit LaneMask for register classes without subregisters as ~0u
This makes it slightly easier to handle classes with and without
subregister uniformly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252671
91177308-0d34-0410-b5e6-
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Reid Kleckner [Tue, 10 Nov 2015 23:22:20 +0000 (23:22 +0000)]
[WinEH] Insert the MBB for EH_RESTORE after the catchret
Inserting it before the target block could be bad, we might already have
a fallthrough edge to it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252670
91177308-0d34-0410-b5e6-
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Andrew Wilkins [Tue, 10 Nov 2015 23:19:21 +0000 (23:19 +0000)]
[cmake] move SONAME handling to llvm_add_library
Summary:
Move handling of the SONAME option from add_llvm_library
to llvm_add_library, so that it can be used in sub-projects.
In particular, this makes it possible to have consistently
named shared libraries for LLVM, Clang and LLDB.
Also, base the SONAME and symlinks on the output name
by extracting the OUTPUT_NAME property, rather than assuming
it is the same as the target name.
Reviewers: beanz
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14539
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252669
91177308-0d34-0410-b5e6-
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Sanjay Patel [Tue, 10 Nov 2015 22:59:11 +0000 (22:59 +0000)]
don't repeat function/class/variable names in comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252666
91177308-0d34-0410-b5e6-
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Jingyue Wu [Tue, 10 Nov 2015 22:35:47 +0000 (22:35 +0000)]
[doc] Compile CUDA with LLVM
Summary:
This patch adds documentation on compiling CUDA with LLVM as requested by many
engineers and researchers. It includes not only user guides but also some
internals (mostly optimizations) so that early adopters can start hacking and
contributing.
Quite a few researchers who contacted us haven't used LLVM before, which is
unsurprising as it hasn't been long since LLVM picked up CUDA. So I added a
short summary to help these folks get started with LLVM.
I expect this document to evolve substantially down the road. The user guides
will be much simplified after the Clang integration is done. However, the
internals should continue growing to include for example performance debugging
and key areas to improve.
Reviewers: chandlerc, meheff, broune, tra
Subscribers: silvas, jingyue, llvm-commits, eliben
Differential Revision: http://reviews.llvm.org/D14370
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252660
91177308-0d34-0410-b5e6-
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Kostya Serebryany [Tue, 10 Nov 2015 22:02:56 +0000 (22:02 +0000)]
[libFuzzer] add UninstrumentedTest.cpp (missing from a previous commit)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252658
91177308-0d34-0410-b5e6-
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Dan Gohman [Tue, 10 Nov 2015 21:48:21 +0000 (21:48 +0000)]
[WebAssembly] Remove special cases for things that are no longer special. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252656
91177308-0d34-0410-b5e6-
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Bill Schmidt [Tue, 10 Nov 2015 21:43:45 +0000 (21:43 +0000)]
Add PPCMIPeephole.cpp to CMakeLists.txt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252654
91177308-0d34-0410-b5e6-
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Dan Gohman [Tue, 10 Nov 2015 21:40:21 +0000 (21:40 +0000)]
[WebAssembly] Support for floating point min and max.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252653
91177308-0d34-0410-b5e6-
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Chris Bieneman [Tue, 10 Nov 2015 21:38:58 +0000 (21:38 +0000)]
[CMake] Autoconf builds libLTO with -fPIC, CMake should be able to as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252652
91177308-0d34-0410-b5e6-
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Bill Schmidt [Tue, 10 Nov 2015 21:38:26 +0000 (21:38 +0000)]
[PowerPC] Add an MI SSA peephole pass.
This patch adds a pass for doing PowerPC peephole optimizations at the
MI level while the code is still in SSA form. This allows for easy
modifications to the instructions while depending on a subsequent pass
of DCE. Both passes are very fast due to the characteristics of SSA.
At this time, the only peepholes added are for cleaning up various
redundancies involving the XXPERMDI instruction. However, I would
expect this will be a useful place to add more peepholes for
inefficiencies generated during instruction selection. The pass is
placed after VSX swap optimization, as it is best to let that pass
remove unnecessary swaps before performing any remaining clean-ups.
The utility of these clean-ups are demonstrated by changes to four
existing test cases, all of which now have tighter expected code
generation. I've also added Eric Schweiz's bugpoint-reduced test from
PR25157, for which we now generate tight code. One other test started
failing for me, and I've fixed it
(test/Transforms/PlaceSafepoints/finite-loops.ll) as well; this is not
related to my changes, and I'm not sure why it works before and not
after. The problem is that the CHECK-NOT: of "statepoint" from test1
fails because of the "statepoint" in test2, and so forth. Adding a
CHECK-LABEL in between keeps the different occurrences of that string
properly scoped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252651
91177308-0d34-0410-b5e6-
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Adrian Prantl [Tue, 10 Nov 2015 21:31:05 +0000 (21:31 +0000)]
dsymutil: Prune module forward decl DIEs if a uniquable definition was
already emitted and fix a latent bug in DIECloner where the DW_CHILDREN_yes
flag is set based on the number of children in the input DIE rather than
the number of children that are actually being cloned.
rdar://problem/
23439845
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252649
91177308-0d34-0410-b5e6-
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Teresa Johnson [Tue, 10 Nov 2015 21:09:06 +0000 (21:09 +0000)]
Ensure ModuleLinker materializes complete comdat groups
Summary:
The module linker lazy links some "discardable if unused" global
values (e.g. linkonce), materializing and linking them only
if they are referenced in the module. If a comdat group contains a
linkonce member that is not referenced, however, it would not be
materialized and linked, leading to an incomplete comdat group.
If there are other object files not part of the same LTO link that also
define and use that comdat group, the linker may select the incomplete
group leading to link time unsats.
To solve this, whenever a global value body is linked, make sure we
materialize any other members of the same comdat group that are not yet
materialized. This ensures they are in the lazy link list and get linked
as well.
Added new test and adjusted old test to remove parts that didn't
make sense with fix.
Reviewers: rafael
Subscribers: dexonsmith, davidxl, llvm-commits
Differential Revision: http://reviews.llvm.org/D14516
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252647
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Sanjoy Das [Tue, 10 Nov 2015 20:13:21 +0000 (20:13 +0000)]
[IR] Make {Call,Invoke}::cloneImpl aware of operand bundles
This was an omission in the patch that landed initial support for
operand bundles. So far we haven't hit this, but we will once the
inliner is able to inline calls to functions that contain calls with
operand bundles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252645
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Sanjoy Das [Tue, 10 Nov 2015 20:13:15 +0000 (20:13 +0000)]
[OperandBundles] Identify operand bundles with both their names and IDs
No code uses this functionality yet. This change just exposes
information / structure that was already present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252644
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Sanjay Patel [Tue, 10 Nov 2015 20:09:02 +0000 (20:09 +0000)]
less indent; NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252643
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