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Rafael Espindola [Tue, 3 Nov 2015 16:25:20 +0000 (16:25 +0000)]
Revert "[Orc] Directly emit machine code for the x86 resolver block and trampolines."
This reverts commit r251933.
It broke the build of examples/Kaleidoscope/Orc/fully_lazy/toy.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251937
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David Blaikie [Tue, 3 Nov 2015 16:23:21 +0000 (16:23 +0000)]
Kaleidoscope-ch2: Remove the dependence on LLVM by cloning make_unique into this project
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251936
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Lang Hames [Tue, 3 Nov 2015 16:10:18 +0000 (16:10 +0000)]
[Orc] Directly emit machine code for the x86 resolver block and trampolines.
Bypassing LLVM for this has a number of benefits:
1) Laziness support becomes asm-syntax agnostic (previously lazy jitting didn't
work on Windows as the resolver block was in Darwin asm).
2) For cross-process JITs, it allows resolver blocks and trampolines to be
emitted directly in the target process, reducing cross process traffic.
3) It should be marginally faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251933
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Teresa Johnson [Tue, 3 Nov 2015 15:11:27 +0000 (15:11 +0000)]
Move metadata linking after lazy global materialization/linking.
Summary:
Currently, named metadata is linked before the LazilyLinkGlobalValues
list is walked and materialized/linked. As a result, references
from DISubprogram and DIGlobalVariable metadata to yet unmaterialized
functions and variables cause them to be added to the lazy linking
list and their definitions are materialized and linked.
This makes the llvm-link -only-needed option not have the intended
effect when debug information is present, as the otherwise unneeded
functions/variables are still linked in.
Additionally, for ThinLTO I have implemented a mechanism to only link
in debug metadata needed by imported functions. Moving named metadata
linking after lazy GV linking will facilitate applying this mechanism
to the LTO and "llvm-link -only-needed" cases as well.
Reviewers: dexonsmith, tra, dblaikie
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14195
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251926
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Teresa Johnson [Tue, 3 Nov 2015 15:10:50 +0000 (15:10 +0000)]
Pass enum instead of bool to new linkInModule call in llvm-link
A new call I added to linkInModule from llvm-link in r251866
was still passing in a boolean for an argument that was changed to an
enum in r246561. I didn't catch this in my merge since the bool false
matched the flag value it mapped to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251925
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Filipe Cabecinhas [Tue, 3 Nov 2015 13:48:26 +0000 (13:48 +0000)]
Don't assert if materializing before seeing any function bodies
This assert was reachable from user input. A minimized test case (no
FUNCTION_BLOCK_ID record) is attached.
Bug found with afl-fuzz
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251910
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Filipe Cabecinhas [Tue, 3 Nov 2015 13:48:21 +0000 (13:48 +0000)]
Don't use Twine objects after their lifetimes end.
No test, since it would depend on what the compiler can optimize/reuse.
My next commit made this bug visible on Linux Release compiles with some
versions of gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251909
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Elena Demikhovsky [Tue, 3 Nov 2015 10:29:34 +0000 (10:29 +0000)]
LoopVectorizer - skip 'bitcast' between GEP and load.
Skipping 'bitcast' in this case allows to vectorize load:
%arrayidx = getelementptr inbounds double*, double** %in, i64 %indvars.iv
%tmp53 = bitcast double** %arrayidx to i64*
%tmp54 = load i64, i64* %tmp53, align 8
Differential Revision http://reviews.llvm.org/D14112
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251907
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Michael Kuperstein [Tue, 3 Nov 2015 08:17:25 +0000 (08:17 +0000)]
[X86] Generate .cfi_adjust_cfa_offset correctly when pushing arguments
When push instructions are being used to pass function arguments on
the stack, and either EH or debugging are enabled, we need to generate
.cfi_adjust_cfa_offset directives appropriately. For (synch) EH, it is
enough for the CFA offset to be correct at every call site, while
for debugging we want to be correct after every push.
Darwin does not support this well, so don't use pushes whenever it
would be required.
Differential Revision: http://reviews.llvm.org/D13767
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251904
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Igor Breger [Tue, 3 Nov 2015 07:30:17 +0000 (07:30 +0000)]
AVX512: add encoding tests for vmovq/d instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251903
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Tobias Grosser [Tue, 3 Nov 2015 07:14:39 +0000 (07:14 +0000)]
Revert "[IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader"
Commit 251839 triggers miscompiles on some bots:
http://lab.llvm.org:8011/builders/perf-x86_64-penryn-O3-polly-fast/builds/13723
(The commit is listed in 13722, but due to an existing failure introduced in
13721 and reverted in 13723 the failure is only visible in 13723)
To verify r251839 is indeed the only change that triggered the buildbot failures
and to ensure the buildbots remain green while investigating I temporarily
revert this commit. At the current state it is unclear if this commit introduced
some miscompile or if it only exposed code to Polly that is subsequently
miscompiled by Polly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251901
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Matthias Braun [Tue, 3 Nov 2015 02:19:07 +0000 (02:19 +0000)]
Fix build problme introduced in r251883
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251888
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Matthias Braun [Tue, 3 Nov 2015 01:53:36 +0000 (01:53 +0000)]
RegisterPressure: Improve assert message
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251885
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Matthias Braun [Tue, 3 Nov 2015 01:53:33 +0000 (01:53 +0000)]
RegisterPressure: Slightly nicer pressure diff dumping
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251884
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Matthias Braun [Tue, 3 Nov 2015 01:53:29 +0000 (01:53 +0000)]
ScheduleDAGInstrs: Remove IsPostRA flag; NFC
ScheduleDAGInstrs doesn't behave differently before or after register
allocation. It was only used in a method of MachineSchedulerBase which
behaved differently in MachineScheduler/PostMachineScheduler. Change
this to let MachineScheduler/PostMachineScheduler just pass in a
parameter to that function.
The order of the LiveIntervals* and bool RemoveKillFlags paramters have
been switched to make out-of-tree code fail instead of unintentionally
passing a value intended for the IsPostRA flag to the (previously
following and default initialized) RemoveKillFlags.
Differential Revision: http://reviews.llvm.org/D14245
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251883
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Rafael Espindola [Tue, 3 Nov 2015 01:32:40 +0000 (01:32 +0000)]
Don't implicitly construct a Archive::child_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251878
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Rafael Espindola [Tue, 3 Nov 2015 01:20:44 +0000 (01:20 +0000)]
This never returns end(), simplify to use Child instead of iterator. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251876
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Rui Ueyama [Tue, 3 Nov 2015 01:04:44 +0000 (01:04 +0000)]
llvm-pdbdump: Simplify. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251873
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Colin LeMahieu [Tue, 3 Nov 2015 00:21:19 +0000 (00:21 +0000)]
[Hexagon] Fixing mistaken case fallthrough.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251867
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Teresa Johnson [Tue, 3 Nov 2015 00:14:15 +0000 (00:14 +0000)]
Restore "Support for ThinLTO function importing and symbol linking."
This restores commit r251837, with the new library dependence added to
llvm-link/Makefile to address bot failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251866
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Kevin Enderby [Mon, 2 Nov 2015 23:42:05 +0000 (23:42 +0000)]
Allow llvm-nm’s single letter command line flags to be grouped.
Which is needed if we want to replace darwin’s nm(1) with llvm-nm
as there are many uses of grouped flags. The added test case is
one specific case that is in real use.
rdar://
23337419
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251864
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Matt Arsenault [Mon, 2 Nov 2015 23:30:48 +0000 (23:30 +0000)]
AMDGPU: Stop assuming vreg for build_vector
This was causing a variety of test failures when v2i64
is added as a legal type.
SIFixSGPRCopies should correctly handle the case of vector inputs
to a scalar reg_sequence, so this isn't necessary anymore. This
was hiding some deficiencies in how reg_sequence is handled later,
but this shouldn't be a problem anymore since the register class
copy of a reg_sequence is now done before the reg_sequence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251860
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Derek Schuff [Mon, 2 Nov 2015 23:23:16 +0000 (23:23 +0000)]
[WebAssembly] Make WebAssemblyCodeGen depend on WebAssemblyAsmPrinter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251859
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Matt Arsenault [Mon, 2 Nov 2015 23:23:02 +0000 (23:23 +0000)]
AMDGPU: Error on graphics shaders with HSA
I've found myself pointlessly debugging problems from running
graphics tests with an HSA triple a few times, so stop this from
happening again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251858
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Sanjay Patel [Mon, 2 Nov 2015 23:22:49 +0000 (23:22 +0000)]
[CGP] widen switch condition and case constants to target's register width (2nd try)
This is a redo of r251849 except the tests have been split into arch-specific folders
to hopefully make the bots happy.
This is a follow-up from the discussion in D12965. The block-at-a-time limitation of
SelectionDAG also came up in D13297.
Without the InstCombine change from D12965, I don't expect this patch to make any
difference in the real world because InstCombine does not shrink cases like this in
visitSwitchInst(). But we need to have this CGP safety harness in place before
proceeding with any shrinkage in D12965, so we won't generate extra extends for compares.
I've opted for IR regression tests in the patch because that seems like a clearer way to
test the transform, but PowerPC CodeGen for an i16 widening test is shown below. x86
will need more work to solve: https://llvm.org/bugs/show_bug.cgi?id=22473
Before:
BB#0:
mr 4, 3
extsh. 3, 4
ble 0, .LBB0_5
BB#1:
cmpwi 3, 99
bgt 0, .LBB0_9
BB#2:
rlwinm 4, 4, 0, 16, 31 <--- 32-bit mask/extend
li 3, 0
cmplwi 4, 1
beqlr 0
BB#3:
cmplwi 4, 10
bne 0, .LBB0_12
BB#4:
li 3, 1
blr
.LBB0_5:
rlwinm 3, 4, 0, 16, 31 <--- 32-bit mask/extend
cmplwi 3, 65436
beq 0, .LBB0_13
BB#6:
cmplwi 3, 65526
beq 0, .LBB0_15
BB#7:
cmplwi 3, 65535
bne 0, .LBB0_12
BB#8:
li 3, 4
blr
.LBB0_9:
rlwinm 3, 4, 0, 16, 31 <--- 32-bit mask/extend
cmplwi 3, 100
beq 0, .LBB0_14
...
After:
BB#0:
rlwinm 4, 3, 0, 16, 31 <--- mask/extend to 32-bit and then use that for comparisons
cmpwi 4, 999
ble 0, .LBB0_5
BB#1:
lis 3, 0
ori 3, 3, 65525
cmpw 4, 3
bgt 0, .LBB0_9
BB#2:
cmplwi 4, 1000
beq 0, .LBB0_14
BB#3:
cmplwi 4, 65436
bne 0, .LBB0_13
BB#4:
li 3, 6
blr
.LBB0_5:
li 3, 0
cmplwi 4, 1
beqlr 0
BB#6:
cmplwi 4, 10
beq 0, .LBB0_12
BB#7:
cmplwi 4, 100
bne 0, .LBB0_13
BB#8:
li 3, 2
blr
.LBB0_9:
cmplwi 4, 65526
beq 0, .LBB0_15
BB#10:
cmplwi 4, 65535
bne 0, .LBB0_13
...
Differential Revision: http://reviews.llvm.org/D13532
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251857
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Matt Arsenault [Mon, 2 Nov 2015 23:15:46 +0000 (23:15 +0000)]
AMDGPU: Un XFAIL a test
This should probably be merged with one of the other private memory
tests, but it fails on r600.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251856
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Matt Arsenault [Mon, 2 Nov 2015 23:15:42 +0000 (23:15 +0000)]
AMDGPU: Distribute SGPR->VGPR copies of REG_SEQUENCE
Make the REG_SEQUENCE be a VGPR, and do the register class
copy first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251855
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David Blaikie [Mon, 2 Nov 2015 23:10:52 +0000 (23:10 +0000)]
Fix the build I just broke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251854
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David Blaikie [Mon, 2 Nov 2015 23:09:38 +0000 (23:09 +0000)]
Orc: Drop some else-after-return, reflow a few spots, and avoid use of pointee types
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251853
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Davide Italiano [Mon, 2 Nov 2015 23:07:14 +0000 (23:07 +0000)]
[SimplifyLibCalls] Remove variables that are not used. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251852
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Sanjay Patel [Mon, 2 Nov 2015 23:05:20 +0000 (23:05 +0000)]
revert r251849; need to move tests to arch-specific folders
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251851
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Cong Hou [Mon, 2 Nov 2015 22:53:48 +0000 (22:53 +0000)]
Add a flag vectorizer-maximize-bandwidth in loop vectorizer to enable using larger vectorization factor.
To be able to maximize the bandwidth during vectorization, this patch provides a new flag vectorizer-maximize-bandwidth. When it is turned on, the vectorizer will determine the vectorization factor (VF) using the smallest instead of widest type in the loop. To avoid increasing register pressure too much, estimates of the register usage for different VFs are calculated so that we only choose a VF when its register usage doesn't exceed the number of available registers.
This is the second attempt to submit this patch. The first attempt got a test failure on ARM. This patch is updated to try to fix the failure (more specifically, by handling the case when VF=1).
Differential revision: http://reviews.llvm.org/D8943
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251850
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Sanjay Patel [Mon, 2 Nov 2015 22:46:24 +0000 (22:46 +0000)]
[CGP] widen switch condition and case constants to target's register width
This is a follow-up from the discussion in D12965. The block-at-a-time limitation of
SelectionDAG also came up in D13297.
Without the InstCombine change from D12965, I don't expect this patch to make any
difference in the real world because InstCombine does not shrink cases like this in
visitSwitchInst(). But we need to have this CGP safety harness in place before
proceeding with any shrinkage in D12965, so we won't generate extra extends for compares.
I've opted for IR regression tests in the patch because that seems like a clearer way to
test the transform, but PowerPC CodeGen for an i16 widening test is shown below. x86
will need more work to solve: https://llvm.org/bugs/show_bug.cgi?id=22473
Before:
BB#0:
mr 4, 3
extsh. 3, 4
ble 0, .LBB0_5
BB#1:
cmpwi 3, 99
bgt 0, .LBB0_9
BB#2:
rlwinm 4, 4, 0, 16, 31 <--- 32-bit mask/extend
li 3, 0
cmplwi 4, 1
beqlr 0
BB#3:
cmplwi 4, 10
bne 0, .LBB0_12
BB#4:
li 3, 1
blr
.LBB0_5:
rlwinm 3, 4, 0, 16, 31 <--- 32-bit mask/extend
cmplwi 3, 65436
beq 0, .LBB0_13
BB#6:
cmplwi 3, 65526
beq 0, .LBB0_15
BB#7:
cmplwi 3, 65535
bne 0, .LBB0_12
BB#8:
li 3, 4
blr
.LBB0_9:
rlwinm 3, 4, 0, 16, 31 <--- 32-bit mask/extend
cmplwi 3, 100
beq 0, .LBB0_14
...
After:
BB#0:
rlwinm 4, 3, 0, 16, 31 <--- mask/extend to 32-bit and then use that for comparisons
cmpwi 4, 999
ble 0, .LBB0_5
BB#1:
lis 3, 0
ori 3, 3, 65525
cmpw 4, 3
bgt 0, .LBB0_9
BB#2:
cmplwi 4, 1000
beq 0, .LBB0_14
BB#3:
cmplwi 4, 65436
bne 0, .LBB0_13
BB#4:
li 3, 6
blr
.LBB0_5:
li 3, 0
cmplwi 4, 1
beqlr 0
BB#6:
cmplwi 4, 10
beq 0, .LBB0_12
BB#7:
cmplwi 4, 100
bne 0, .LBB0_13
BB#8:
li 3, 2
blr
.LBB0_9:
cmplwi 4, 65526
beq 0, .LBB0_15
BB#10:
cmplwi 4, 65535
bne 0, .LBB0_13
...
Differential Revision: http://reviews.llvm.org/D13532
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251849
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Bill Schmidt [Mon, 2 Nov 2015 22:43:57 +0000 (22:43 +0000)]
[PPC64LE] Properly initialize instr-info in PPCVSXSwapRemoval pass
Replace some hacky code with the proper way to get at this data.
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251848
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Sanjay Patel [Mon, 2 Nov 2015 22:34:55 +0000 (22:34 +0000)]
don't repeat function names in comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251846
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Davide Italiano [Mon, 2 Nov 2015 22:33:26 +0000 (22:33 +0000)]
[SimplifyLibCalls] Merge two if statements. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251845
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Teresa Johnson [Mon, 2 Nov 2015 22:17:32 +0000 (22:17 +0000)]
Revert "Support for ThinLTO function importing and symbol linking."
This reverts commit r251837, due to a number of bot failures of the form:
/home/grosser/buildslave/perf-x86_64-penryn-O3-polly-fast/llvm.obj/tools/llvm-link/Release+Asserts/llvm-link.o:llvm-link.cpp:function
loadIndex(llvm::LLVMContext&, llvm::Module const*): error: undefined
reference to
'llvm::object::FunctionIndexObjectFile::create(llvm::MemoryBufferRef,
llvm::LLVMContext&, llvm::Module const*, bool)'
/home/grosser/buildslave/perf-x86_64-penryn-O3-polly-fast/llvm.obj/tools/llvm-link/Release+Asserts/llvm-link.o:llvm-link.cpp:function
loadIndex(llvm::LLVMContext&, llvm::Module const*): error: undefined
reference to 'llvm::object::FunctionIndexObjectFile::takeIndex()'
I'm not sure why these are happening - I added Object to the requred
libraries in tools/llvm-link/LLVMBuild.txt and the LLVM_LINK_COMPONENTS
in tools/llvm-link/CMakeLists.txt. Confirmed for my build that these
symbols come out of libLLVMObject.a. What am I missing?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251841
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Chen Li [Mon, 2 Nov 2015 22:00:15 +0000 (22:00 +0000)]
[IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader
Summary:
This patch adds support to check if a loop has loop invariant conditions which lead to loop exits. If so, we know that if the exit path is taken, it is at the first loop iteration. If there is an induction variable used in that exit path whose value has not been updated, it will keep its initial value passing from loop preheader. We can therefore rewrite the exit value with
its initial value. This will help remove phis created by LCSSA and enable other optimizations like loop unswitch.
Reviewers: sanjoy
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D13974
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251839
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Teresa Johnson [Mon, 2 Nov 2015 21:39:10 +0000 (21:39 +0000)]
Support for ThinLTO function importing and symbol linking.
Summary:
Support for necessary linkage changes and symbol renaming during
ThinLTO function importing.
Also includes llvm-link support for manually importing functions
and associated llvm-link based tests.
Note that this does not include support for intelligently importing
metadata, which is currently imported duplicate times. That support will
be in the follow-on patch, and currently is ignored by the tests.
Reviewers: dexonsmith, joker.eph, davidxl
Subscribers: tobiasvk, tejohnson, llvm-commits
Differential Revision: http://reviews.llvm.org/D13515
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251837
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Tim Northover [Mon, 2 Nov 2015 21:26:58 +0000 (21:26 +0000)]
MachO: support tvOS and watchOS version min commands in llvm-objdump
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251834
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Cong Hou [Mon, 2 Nov 2015 21:24:00 +0000 (21:24 +0000)]
In MachineBlockPlacement, filter cold blocks off the loop chain when profile data is available.
In the current BB placement algorithm, a loop chain always contains all loop blocks. This has a drawback that cold blocks in the loop may be inserted on a hot function path, hence increasing branch cost and also reducing icache locality.
Consider a simple example shown below:
A
|
B⇆C
|
D
When B->C is quite cold, the best BB-layout should be A,B,D,C. But the current implementation produces A,C,B,D.
This patch filters those cold blocks off from the loop chain by comparing the ratio:
LoopBBFreq / LoopFreq
to 20%: if it is less than 20%, we don't include this BB to the loop chain. Here LoopFreq is the frequency of the loop when we reduce the loop into a single node. In general we have more cold blocks when the loop has few iterations. And vice versa.
Differential revision: http://reviews.llvm.org/D11662
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251833
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Reid Kleckner [Mon, 2 Nov 2015 20:49:29 +0000 (20:49 +0000)]
[Support] Assert that reported key+data lenghts match reality
This found a bug in Clang's PTH implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251829
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Teresa Johnson [Mon, 2 Nov 2015 20:43:33 +0000 (20:43 +0000)]
Fix use-after-free in function index merging code.
This was flagged by ASAN when using a test case I will be committing
along with D13515.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251827
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David Blaikie [Mon, 2 Nov 2015 20:05:54 +0000 (20:05 +0000)]
Revert parts accidentally included in r251823
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251826
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David Blaikie [Mon, 2 Nov 2015 20:01:13 +0000 (20:01 +0000)]
StringRef-ify DiagnosticInfoSampleProfile::Filename
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251823
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Rafael Espindola [Mon, 2 Nov 2015 19:13:59 +0000 (19:13 +0000)]
ELF can handle some relocations of the form -sym + constant.
Remove code that was assuming that this would never work.
Thanks to Colin LeMahie for finding and diagnosing the bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251818
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Rafael Espindola [Mon, 2 Nov 2015 19:03:18 +0000 (19:03 +0000)]
Convert tabs to spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251817
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James Y Knight [Mon, 2 Nov 2015 18:48:08 +0000 (18:48 +0000)]
Fix two issues in MergeConsecutiveStores:
1) PR25154. This is basically a repeat of PR18102, which was fixed in
r200201, and broken again by r234430. The latter changed which of the
store nodes was merged into from the first to the last. Thus, we now
also need to prefer merging a later store at a given address into the
target node, instead of an earlier one.
2) While investigating that, I also realized I'd introduced a bug in
r236850. There, I removed a check for alignment -- not realizing that
nothing except the alignment check was ensuring that none of the stores
were overlapping! This is a really bogus way to ensure there's no
aliased stores.
A better solution to both of these issues is likely to always use the
code added in the 'if (UseAA)' branches which rearrange the chain based
on a more principled analysis. I'll look into whether that can be used
always, but in the interest of getting things back to working, I think a
minimal change makes sense.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251816
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Tim Northover [Mon, 2 Nov 2015 18:33:35 +0000 (18:33 +0000)]
MachO: improve load command tests slightly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251815
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Tim Northover [Mon, 2 Nov 2015 18:21:07 +0000 (18:21 +0000)]
WatchOS: update default CPU for triple after t2dsp -> dsp rename
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251814
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Teresa Johnson [Mon, 2 Nov 2015 18:02:11 +0000 (18:02 +0000)]
Clang format a few prior patches (NFC)
I had clang formatted my earlier patches using the wrong style.
Reformatted with the LLVM style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251812
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Tim Northover [Mon, 2 Nov 2015 18:00:00 +0000 (18:00 +0000)]
TvOS: add missing support for some libcalls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251811
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Artur Pilipenko [Mon, 2 Nov 2015 17:53:51 +0000 (17:53 +0000)]
Preserve load alignment and dereferenceable metadata during some transformations
Reviewed By: hfinkel
Differential Revision: http://reviews.llvm.org/D13953
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251809
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Matthias Braun [Mon, 2 Nov 2015 16:13:46 +0000 (16:13 +0000)]
lit: Add '-a' option to display commands+output of all tests
The existing -v option only displays commands and outputs for failed
tests, the newly introduced -a displays it for all executed tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251806
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Silviu Baranga [Mon, 2 Nov 2015 15:29:49 +0000 (15:29 +0000)]
Add missing override statements in ScalarEvolution.h. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251805
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Pawel Bylica [Mon, 2 Nov 2015 14:57:24 +0000 (14:57 +0000)]
Use static instead of anonymous namespace for helper functions. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251801
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Silviu Baranga [Mon, 2 Nov 2015 14:41:02 +0000 (14:41 +0000)]
[SCEV][LV] Add SCEV Predicates and use them to re-implement stride versioning
Summary:
SCEV Predicates represent conditions that typically cannot be derived from
static analysis, but can be used to reduce SCEV expressions to forms which are
usable for different optimizers.
ScalarEvolution now has the rewriteUsingPredicate method which can simplify a
SCEV expression using a SCEVPredicateSet. The normal workflow of a pass using
SCEVPredicates would be to hold a SCEVPredicateSet and every time assumptions
need to be made a new SCEV Predicate would be created and added to the set.
Each time after calling getSCEV, the user will call the rewriteUsingPredicate
method.
We add two types of predicates
SCEVPredicateSet - implements a set of predicates
SCEVEqualPredicate - tests for equality between two SCEV expressions
We use the SCEVEqualPredicate to re-implement stride versioning. Every time we
version a stride, we will add a SCEVEqualPredicate to the context.
Instead of adding specific stride checks, LoopVectorize now adds a more
generic SCEV check.
We only need to add support for this in the LoopVectorizer since this is the
only pass that will do stride versioning.
Reviewers: mzolotukhin, anemet, hfinkel, sanjoy
Subscribers: sanjoy, hfinkel, rengolin, jmolloy, llvm-commits
Differential Revision: http://reviews.llvm.org/D13595
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251800
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Nemanja Ivanovic [Mon, 2 Nov 2015 14:01:11 +0000 (14:01 +0000)]
Fix for bootstrap bug introduced in r244921
This revision has introduced an issue that only affects bootstrapped compiler
when it is printing the ASM. It turns out that the new code path taken due to
legalizing a scalar_to_vector of i64 -> v2i64 exposes a missing check in a
micro optimization to change a load followed by a scalar_to_vector into a
load and splat instruction on PPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251798
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Rafael Espindola [Mon, 2 Nov 2015 13:30:46 +0000 (13:30 +0000)]
This doesn't need a object::Archive::child_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251796
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Rafael Espindola [Mon, 2 Nov 2015 13:17:11 +0000 (13:17 +0000)]
Avoid implicitly constructing a Archive::child_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251794
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James Molloy [Mon, 2 Nov 2015 09:54:00 +0000 (09:54 +0000)]
[PatternMatch] Switch to use ValueTracking::matchSelectPattern
Instead of rolling our own min/max matching code (which is notoriously
hard to get completely right), use ValueTracking's instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251785
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Pawel Bylica [Mon, 2 Nov 2015 09:49:17 +0000 (09:49 +0000)]
[Support] Extend sys::path with user_cache_directory function.
Summary:
The new function sys::path::user_cache_directory tries to discover
a directory suitable for cache storage for current system user.
On Windows and Darwin it returns a path to system-specific user cache directory.
On Linux it follows XDG Base Directory Specification, what is:
- use non-empty $XDG_CACHE_HOME env var,
- use $HOME/.cache.
Reviewers: chapuni, aaron.ballman, rafael
Subscribers: rafael, aaron.ballman, llvm-commits
Differential Revision: http://reviews.llvm.org/D13801
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251784
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Igor Breger [Mon, 2 Nov 2015 07:39:36 +0000 (07:39 +0000)]
AVX512: Implemented encoding and intrinsics for VBROADCASTI32x2 and VBROADCASTF32x2 instructions.
Differential Revision: http://reviews.llvm.org/D14216
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251781
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Craig Topper [Mon, 2 Nov 2015 07:24:40 +0000 (07:24 +0000)]
[X86] Remove assertions that check for valid scale values on scatter/gather intrinsics. Nothing upstream prevented illegal values from getting here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251780
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Craig Topper [Mon, 2 Nov 2015 07:24:37 +0000 (07:24 +0000)]
[X86] Don't pass a scale value of 0 to scatter/gather intrinsics. This causes the code emitter to throw an assertion if we try to encode it. Need to add a check to fail isel for this, but for now avoid testing it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251779
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Craig Topper [Mon, 2 Nov 2015 07:24:34 +0000 (07:24 +0000)]
[X86] Fold 'if' followed by just an llvm_unreachable into an assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251778
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Craig Topper [Mon, 2 Nov 2015 07:24:32 +0000 (07:24 +0000)]
[X86] Use isa instead of dyn_cast in a bool context. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251777
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Craig Topper [Mon, 2 Nov 2015 07:24:30 +0000 (07:24 +0000)]
[X86] Remove some llvm_unreachables after switches that already have an unreachable in their default case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251776
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Craig Topper [Mon, 2 Nov 2015 07:24:27 +0000 (07:24 +0000)]
[X86] Remove a 'break' after an llvm_unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251775
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Craig Topper [Mon, 2 Nov 2015 07:24:25 +0000 (07:24 +0000)]
[X86] Use cast instead of dyn_cast and a null check marked unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251774
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Craig Topper [Mon, 2 Nov 2015 05:24:28 +0000 (05:24 +0000)]
Fix a -Wpessimizing-move warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251773
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Craig Topper [Mon, 2 Nov 2015 05:24:22 +0000 (05:24 +0000)]
[X86] Use MVT instead of EVT when the type is known to be simple. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251772
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Xinliang David Li [Mon, 2 Nov 2015 05:08:23 +0000 (05:08 +0000)]
[PGO] Value profiling (index format) code cleanup and testing
1. Added a set of public interfaces in InstrProfRecord
class to access (read/write) value profile data.
2. Changed IndexedProfile reader and writer code to
use the newly defined interfaces and hide implementation
details.
3. Added a couple of unittests for value profiling:
- Test new interfaces to get and set value profile data
- Test value profile data merging with various scenarios.
No functional change is expected. The new interfaces will also
make it possible to change on-disk format of value prof data
to be more compact (to be submitted).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251771
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Sanjoy Das [Mon, 2 Nov 2015 02:06:01 +0000 (02:06 +0000)]
[SCEV] Fix PR25369
Have `getConstantEvolutionLoopExitValue` work correctly with multiple
entry loops.
As far as I can tell, `getConstantEvolutionLoopExitValue` never did the
right thing for multiple entry loops; and before r249712 it would
silently return an incorrect answer. r249712 changed SCEV to fail an
assert on a multiple entry loop, and this change fixes the underlying
issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251770
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NAKAMURA Takumi [Mon, 2 Nov 2015 01:38:12 +0000 (01:38 +0000)]
Untabify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251769
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Davide Italiano [Sun, 1 Nov 2015 17:00:13 +0000 (17:00 +0000)]
[LibraryInfo] Point to FreeBSD HEAD repo and not to a dolphin branch.
The latter might go away (anytime soon).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251765
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Elena Demikhovsky [Sun, 1 Nov 2015 11:45:47 +0000 (11:45 +0000)]
AVX-512: Optimized SIMD truncate operations for AVX512F set.
Optimized <8 x i32> to <8 x i16>
<4 x i64> to < 4 x i32>
<16 x i16> to <16 x i8>
All these oprtrations use now AVX512F set (KNL). Before this change it was implemented with AVX2 set.
Differential Revision: http://reviews.llvm.org/D14108
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251764
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Saleem Abdulrasool [Sun, 1 Nov 2015 01:26:15 +0000 (01:26 +0000)]
RuntimeDyld: add COFF i386 support
This adds support for COFF I386. This is sufficient for code execution in a
32-bit JIT, though, imported symbols need to custom lowered for the redirection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251761
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Rafael Espindola [Sun, 1 Nov 2015 00:14:59 +0000 (00:14 +0000)]
Make a few definitions static. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251759
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Rafael Espindola [Sun, 1 Nov 2015 00:10:37 +0000 (00:10 +0000)]
Use Child instead of child_iterator in the archive writer.
We never need to pass end(). This will also remove some complication
once we start adding error checking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251758
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Davide Italiano [Sun, 1 Nov 2015 00:09:16 +0000 (00:09 +0000)]
Simplify a check. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251757
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Sanjoy Das [Sat, 31 Oct 2015 23:21:40 +0000 (23:21 +0000)]
[SCEV] Don't create SCEV expressions that break LCSSA
Prevent `createNodeFromSelectLikePHI` from creating SCEV expressions
that break LCSSA.
A better fix for the same issue is to teach SCEVExpander to not break
LCSSA by inserting PHI nodes at appropriate places. That's planned for
the future.
Fixes PR25360.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251756
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Sanjoy Das [Sat, 31 Oct 2015 23:21:32 +0000 (23:21 +0000)]
[SCEV] Use auto and range for; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251755
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Davide Italiano [Sat, 31 Oct 2015 23:17:45 +0000 (23:17 +0000)]
[SimplifyLibCalls] Factor out other common code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251754
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Rafael Espindola [Sat, 31 Oct 2015 22:25:59 +0000 (22:25 +0000)]
This can take a const reference. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251753
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Diego Novillo [Sat, 31 Oct 2015 21:53:58 +0000 (21:53 +0000)]
SamplePGO - Count sample records in embedded profiles when computing coverage.
The initial coverage checking code for sample records failed to count
records inside inlined profiles. This change fixes the oversight.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251752
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Craig Topper [Sat, 31 Oct 2015 21:44:52 +0000 (21:44 +0000)]
[X86] Replace getScalarType with getVectorElementType when the type is already known to be a vector. This should result in slightly less code. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251751
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Rafael Espindola [Sat, 31 Oct 2015 21:44:42 +0000 (21:44 +0000)]
Don't store a Child to the first regular member.
This is a bit ugly, but has a few advantages:
* Archive is now easy to copy since there is no Archive -> Child -> Archive
loop.
* It makes it clear that we already checked for errors when finding the Child
data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251750
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Rafael Espindola [Sat, 31 Oct 2015 21:16:01 +0000 (21:16 +0000)]
Delete dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251749
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Rafael Espindola [Sat, 31 Oct 2015 21:03:29 +0000 (21:03 +0000)]
Simplify handling of archive Symbol tables.
We only need to store a StringRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251748
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Davide Italiano [Sat, 31 Oct 2015 20:59:32 +0000 (20:59 +0000)]
[SimplifyLibCalls] Add test to ensure transform is not executed if fast-math
attribute is not present.
During my refactor in r251595 I changed the behavior of optimizeSqrt(),
skipping the transformation if the function wasn't marked with unsafe-fp-math
attribute. This fixed a bug, as confirmed by Sanjay (before the optimization
was silently executed anyway), although it wasn't my primary aim.
This commit adds a test to ensure the code doesn't break again.
Reported by: Marcello Maggioni
Discussed with: Sanjay Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251747
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Rafael Espindola [Sat, 31 Oct 2015 20:06:13 +0000 (20:06 +0000)]
Simplify the handling of the archive string table.
We only need to store a StringRef
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251746
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Craig Topper [Sat, 31 Oct 2015 18:14:17 +0000 (18:14 +0000)]
[X86] Convert to MVT instead of calling EVT functions since we already know the type is simple. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251745
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Craig Topper [Sat, 31 Oct 2015 18:14:15 +0000 (18:14 +0000)]
[X86] Call getScalarSizeInBits() instead of getScalarType().getScalarSizeInBits(). NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251744
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Craig Topper [Sat, 31 Oct 2015 17:28:02 +0000 (17:28 +0000)]
[X86] Remove two const references to the return value of a constructor and just use normal object creation syntax. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251743
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Craig Topper [Sat, 31 Oct 2015 17:27:59 +0000 (17:27 +0000)]
[X86] Replace EVT with MVT in some more places. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251742
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Craig Topper [Sat, 31 Oct 2015 17:27:56 +0000 (17:27 +0000)]
[X86] Fix indentation of case statements in switch. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251741
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Craig Topper [Sat, 31 Oct 2015 17:27:52 +0000 (17:27 +0000)]
[X86] Reduce math for index calculation for inserting and extracting subvectors and elements by exploiting the fact that all supported vector types have a power 2 number of elements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251740
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Davide Italiano [Sat, 31 Oct 2015 08:28:10 +0000 (08:28 +0000)]
[SimplifyLibCalls] Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251737
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Michael Gottesman [Sat, 31 Oct 2015 05:23:53 +0000 (05:23 +0000)]
Add a unittest for SmallDenseMap that tests assigning a SmallDenseMap when it is not small.
This complements CopyConstructorNotSmallTest. If we are testing the copy
constructor in such a way, we should also probably test assignment in the same
way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251736
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