Commit Graph

322744 Commits

Author SHA1 Message Date
Simon Pilgrim
962c03fac4 [X86] resolveTargetShuffleInputs - add depth to limit recursion.
Avoids slow downs from calls to ComputeNumSignBits/computeKnownBits going too deep.

llvm-svn: 367240
2019-07-29 17:17:58 +00:00
Puyan Lotfi
ba7b7f1de4 Appending COMPILER_RT_LIBCXX_PATH include path to -isystem for compiler-rt xray
Haven't found a better way to pass the libcxx include path for building
compiler-rt with libcxx; this seems to be missing only for xray.

Differential Revision: https://reviews.llvm.org/D65307

llvm-svn: 367239
2019-07-29 16:46:35 +00:00
Jonas Devlieghere
a8ea595509 [lldb] Also include the array definition in Properties.inc
Right now our Properties.inc only generates the initializer for the
options list but not the array declaration boilerplate around it. As the
array definition is identical for all arrays, we might as well also let
the Properties.inc generate it alongside the initializers.

Unfortunately we cannot do the same for enums, as there's this magic
ePropertyExperimental, which needs to come at the end to be interpreted
correctly. Hopefully we can get rid of this in the future and do the
same for the property enums.

Differential revision: https://reviews.llvm.org/D65353

llvm-svn: 367238
2019-07-29 16:41:30 +00:00
Tom Stellard
cc0bc941d4 AMDGPU/LoadStoreOptimizer: combine MMOs when merging instructions
Summary:
The LoadStoreOptimizer was creating instructions with 2
MachineMemOperands, which meant they were assumed to alias with all other instructions,
because MachineInstr:mayAlias() returns true when an instruction has multiple
MachineMemOperands.

This was preventing these instructions from being merged again, and was
giving the scheduler less freedom to reorder them.

Reviewers: arsenm, nhaehnle

Reviewed By: arsenm

Subscribers: kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65036

llvm-svn: 367237
2019-07-29 16:40:58 +00:00
Sergey Dmitriev
899bdaa8c2 [llvm-objcopy] Improve --add-section argument string parsing
Differential Revision: https://reviews.llvm.org/D65346

llvm-svn: 367236
2019-07-29 16:22:40 +00:00
Jay Foad
3bdcedbf3d [AMDGPU] Fix typo in error message
llvm-svn: 367235
2019-07-29 16:17:13 +00:00
Jan Kratochvil
2b38951799 [lldb] Increase testsuite packet-timeout 5secs -> 1min
rL357954 did increase `packet-timeout` 1sec -> 5secs. Which is IMO about the
maximum timeout reasonable for regular use. But for testsuite I think the
timeout should be higher as the testsuite runs in parallel and it can be run
even on slow hosts and with other load (moreover if it runs on some slow arch).

I have chosen 60 secs, that should be enough hopefully.  Larger value could
make debugging with hanging `lldb-server` annoying.

This patch was based on this testsuite timeout:
http://lab.llvm.org:8014/builders/lldb-x86_64-fedora/builds/546/steps/test/logs/stdio
	FAIL: test_connect (TestGDBRemoteClient.TestGDBRemoteClient)
	   Test connecting to a remote gdb server
	----------------------------------------------------------------------
	Traceback (most recent call last):
	  File "/home/jkratoch/slave-lldb-x86_64-fedora/lldb-x86_64-fedora/llvm/tools/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestGDBRemoteClient.py", line 13, in test_connect
	    process = self.connect(target)
	  File "/home/jkratoch/slave-lldb-x86_64-fedora/lldb-x86_64-fedora/llvm/tools/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/gdbclientutils.py", line 480, in connect
	    self.assertTrue(error.Success(), error.description)
	AssertionError: False is not True : failed to get reply to handshake packet

Differential Revision: https://reviews.llvm.org/D65271

llvm-svn: 367234
2019-07-29 16:10:16 +00:00
Cameron McInally
b32a6592eb [NFC][FPEnv] Pre-commit tests for canonicalize negated operand of fdiv.
llvm-svn: 367233
2019-07-29 16:09:56 +00:00
Simon Pilgrim
5ab948f823 [X86] combineX86ShufflesRecursively - start recursion at depth = 0. NFCI.
As discussed on rL367171, we have a problem where the depth recursion used in combineX86ShufflesRecursively was subtly different to computeKnownBits etc. - it starts at Depth=1 instead of Depth=0 like the others and has a different maximum recursion depth.

This NFC patch fixes the recursion depth to start at 0, so we can more easily reuse depth values in calls from combineX86ShufflesRecursively and its helper functions in computeKnownBits etc.

llvm-svn: 367232
2019-07-29 15:57:06 +00:00
Pavel Labath
c2409baa66 SymbolVendor: Make SectionAddressesChanged a passthrough
Summary:
This moves the implementation of the function into the SymbolFile class,
making it possible to excise the SymbolVendor passthrough functions in
follow-up patches.

Reviewers: clayborg, jingham, JDevlieghere

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D65266

llvm-svn: 367231
2019-07-29 15:53:36 +00:00
Francis Visoiu Mistrih
d42289e291 [RISCV] Fix uninitialized variable after call to evaluateConstantImm
For llvm/test/MC/RISCV/rv64i-aliases-invalid.s, UBSan reports:

lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp:371:9: runtime error:
load of value 3879186881, which is not a valid value for type
'RISCVMCExpr::VariantKind'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp:371:9 in

It turns out that evaluateConstantImm does not set `VK` and it remains
unitialized when doing comparisons in `isImmXLenLI()`.

Differential Revision: https://reviews.llvm.org/D65347

llvm-svn: 367230
2019-07-29 15:52:13 +00:00
Sven van Haastregt
89fb9e8ce1 [OpenCL] Rename builtin definition classes
Factor out some of the renames from D63434 and D63442, and generate
half type convert_ builtins.

Patch by Pierre Gondois and Sven van Haastregt.

llvm-svn: 367229
2019-07-29 14:55:29 +00:00
Michal Gorny
e0ab4c8ee4 [lldb] [test] Mark three new tests XFAIL on NetBSD
llvm-svn: 367228
2019-07-29 14:32:40 +00:00
Sanjay Patel
e9ee7b47d4 [InstCombine] fold fadd+fneg with fdiv/fmul betweena
The backend already does this via isNegatibleForFree(),
but we may want to alter the fneg IR canonicalizations
that currently exist, so we need to try harder to fold
fneg in IR to avoid regressions.

llvm-svn: 367227
2019-07-29 13:50:25 +00:00
Hideto Ueno
98d281a99f [ValueTracking] Remove volatile check in isGuaranteedToTransferExecutionToSuccessor
Summary: As clarified in D53184, volatile load and store do not trap. Therefore, we should remove volatile checks for instructions in  `isGuaranteedToTransferExecutionToSuccessor`.

Reviewers: jdoerfert, efriedma, nikic

Reviewed By: nikic

Subscribers: hiraditya, jfb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65375

llvm-svn: 367226
2019-07-29 13:35:34 +00:00
Nico Weber
ff9f4b5489 clang-format clang/lib/Format
llvm-svn: 367225
2019-07-29 13:26:48 +00:00
Sanjay Patel
5483f4225e [InstCombine] reduce code for fadd with fneg operand; NFC
llvm-svn: 367224
2019-07-29 13:20:46 +00:00
Sanjay Patel
74c35bd6b0 [InstCombine] add tests for fadd with negated operand; NFC
llvm-svn: 367222
2019-07-29 12:49:36 +00:00
Jay Foad
2bd9da8a72 [AMDGPU] Add amdgpu_kernel for consistency with other tests
llvm-svn: 367221
2019-07-29 11:48:17 +00:00
Simon Pilgrim
f8a7e9de06 [DAGCombine] narrowInsertExtractVectorBinOp - early out for binops that change value type. NFCI.
This is implicit in the value type checks in getSubVectorSrc - this just makes it upfront and obvious.

llvm-svn: 367220
2019-07-29 11:34:45 +00:00
Rafael Stahl
0e074fa0fc doc: Fix Google C++ Style Guide link.
llvm-svn: 367219
2019-07-29 11:00:23 +00:00
Jay Foad
dcb7532479 [DivergenceAnalysis] Add methods for querying divergence at use
Summary:
The existing isDivergent(Value) methods query whether a value is
divergent at its definition. However even if a value is uniform at its
definition, a use of it in another basic block can be divergent because
of divergent control flow between the def and the use.

This patch adds new isDivergent(Use) methods to DivergenceAnalysis,
LegacyDivergenceAnalysis and GPUDivergenceAnalysis.

This might allow D63953 or other similar workarounds to be removed.

Reviewers: alex-t, nhaehnle, arsenm, rtaylor, rampitec, simoll, jingyue

Reviewed By: nhaehnle

Subscribers: jfb, jvesely, wdng, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65141

llvm-svn: 367218
2019-07-29 10:22:09 +00:00
Simon Pilgrim
a4f08dded7 [SystemZ] Regenerate <8 x i31> store test
To help show the diffs from an upcoming SimplifyDemandedBits patch.

llvm-svn: 367216
2019-07-29 09:49:23 +00:00
Hans Wennborg
ecd137c701 Mark test/MC/RISCV/rv{32,64}i-aliases-invalid.s unsupported also on Windows
Because they fail there too.

FAIL: LLVM :: MC/RISCV/rv32i-aliases-invalid.s (24397 of 32659)
******************** TEST 'LLVM :: MC/RISCV/rv32i-aliases-invalid.s' FAILED ********************
Script:
--
: 'RUN: at line 2';   not c:\src\llvm.monorepo\build.release2\bin\llvm-mc.exe C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv32i-aliases-invalid.s -triple=riscv32 -riscv-no-aliases 2>&1 | c:\src\llvm.monorepo\build.release2\bin\filecheck.exe C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv32i-aliases-invalid.s
: 'RUN: at line 3';   not c:\src\llvm.monorepo\build.release2\bin\llvm-mc.exe C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv32i-aliases-invalid.s -triple=riscv32 2>&1 | c:\src\llvm.monorepo\build.release2\bin\filecheck.exe C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv32i-aliases-invalid.s
--
Exit Code: 1

Command Output (stdout):
--
$ ":" "RUN: at line 2"
$ "not" "c:\src\llvm.monorepo\build.release2\bin\llvm-mc.exe" "C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv32i-aliases-invalid.s" "-triple=riscv32" "-riscv-no-aliases"
$ "c:\src\llvm.monorepo\build.release2\bin\filecheck.exe" "C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv32i-aliases-invalid.s"
C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv32i-aliases-invalid.s:10:21: error: CHECK: expected string not found in input
li t4, foo # CHECK: :[[@LINE]]:8: error: immediate must be an integer in the range [-2147483648, 4294967295]
                    ^
<stdin>:5:1: note: scanning from here
li x0, -2147483649 # CHECK: :[[@LINE]]:8: error: immediate must be an integer in the range [-2147483648, 4294967295]
^
<stdin>:5:1: note: with "@LINE" equal to "10"
li x0, -2147483649 # CHECK: :[[@LINE]]:8: error: immediate must be an integer in the range [-2147483648, 4294967295]
^
<stdin>:5:38: note: possible intended match here
li x0, -2147483649 # CHECK: :[[@LINE]]:8: error: immediate must be an integer in the range [-2147483648, 4294967295]
                                     ^

error: command failed with exit status: 1

--

--
********************
Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70
FAIL: LLVM :: MC/RISCV/rv64i-aliases-invalid.s (24416 of 32659)
******************** TEST 'LLVM :: MC/RISCV/rv64i-aliases-invalid.s' FAILED ********************
Script:
--
: 'RUN: at line 2';   not c:\src\llvm.monorepo\build.release2\bin\llvm-mc.exe C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv64i-aliases-invalid.s -triple=riscv64 -riscv-no-aliases 2>&1 | c:\src\llvm.monorepo\build.release2\bin\filecheck.exe C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv64i-aliases-invalid.s
: 'RUN: at line 3';   not c:\src\llvm.monorepo\build.release2\bin\llvm-mc.exe C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv64i-aliases-invalid.s -triple=riscv64 2>&1 | c:\src\llvm.monorepo\build.release2\bin\filecheck.exe C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv64i-aliases-invalid.s
--
Exit Code: 1

Command Output (stdout):
--
$ ":" "RUN: at line 2"
$ "not" "c:\src\llvm.monorepo\build.release2\bin\llvm-mc.exe" "C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv64i-aliases-invalid.s" "-triple=riscv64" "-riscv-no-aliases"
$ "c:\src\llvm.monorepo\build.release2\bin\filecheck.exe" "C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv64i-aliases-invalid.s"
C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv64i-aliases-invalid.s:6:21: error: CHECK: expected string not found in input
li t4, foo # CHECK: :[[@LINE]]:8: error: operand must be a constant 64-bit integer
                    ^
<stdin>:2:1: note: scanning from here
li t5, 0x10000000000000000 # CHECK: :[[@LINE]]:8: error: unknown operand
^
<stdin>:2:1: note: with "@LINE" equal to "6"
li t5, 0x10000000000000000 # CHECK: :[[@LINE]]:8: error: unknown operand
^
<stdin>:13:67: note: possible intended match here
C:\src\llvm.monorepo\llvm\test\MC\RISCV\rv64i-aliases-invalid.s:12:13: error: immediate must be an integer in the range [0, 63]
                                                                  ^

error: command failed with exit status: 1
llvm-svn: 367215
2019-07-29 09:49:04 +00:00
Simon Pilgrim
adda256a7d [ARM] Regenerate rotation tests
llvm-svn: 367214
2019-07-29 09:48:07 +00:00
Simon Pilgrim
251b546f1b [AMDGPU] Regenerate v2i16 insertelement tests.
To help show the diffs from an upcoming SimplifyDemandedBits patch.

llvm-svn: 367213
2019-07-29 09:47:07 +00:00
Sam Parker
414dd1c946 [NFC][ARM[ParallelDSP] Cleanup of BinOpChain
- Remove some unused typedefs.
- Rename BinOpChain struct to MulCandidate.
- Remove the size method of MulCandidate.
- Store only the first input of the ValueList provided to
  MulCandidate, as it's the only value we care about. This means we
  don't have to perform any ugly (and unnecessary) iterations of the 
  list later on.

llvm-svn: 367208
2019-07-29 08:41:51 +00:00
Raphael Isemann
4e44c77ab3 [lldb][NFC] Split emitting and parsing in LLDBOptionDefEmitter
Splitting the different logic is cleaner and we it will be easier
to implement the enum emitting (which otherwise would have to
reimplement the Record parsing).

llvm-svn: 367207
2019-07-29 08:22:41 +00:00
David Stuttard
20235ef3e7 [AMDGPU] Enable v4f16 and above for v_pk_fma instructions
Summary:
If isel is presented with <2 x half> vectors then it will correctly select
v_pk_fma style instructions.
If isel is presented with e.g. <4 x half> vectors it will scalarize, unlike for
other instruction types (such as fadd, fmul etc.)

Added extra support to enable this. Updated one of the tests to include a test
for this (as well as extending the test to GFX9)

Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, tpr, t-tye, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65325

Change-Id: I50a4577a3f8223fb53992af3b7d26121f65b71ee
llvm-svn: 367206
2019-07-29 08:15:10 +00:00
Sam Parker
8538060103 [NFC][ARM][ParallelDSP] Remove AreSymmetrical
We explicitly search for a parallel mac and we only care about its
inputs, checking for symmetry doesn't add anything here.

llvm-svn: 367205
2019-07-29 08:12:24 +00:00
Sam Parker
11ad33ede6 [NFC][ARM][ParallelDSP] Remove PopulateLoads
We no longer have to check what loads are used, all this
is performed at the start of the transform, so it's not
doing anything now.

llvm-svn: 367204
2019-07-29 08:07:23 +00:00
George Rimar
aef03e86c1 [obj2yaml] - Report a error when unable to resolve a sh_link reference properly.
Because of a bug we did not report a error in the case
shown in the test. With this patch we do.

Differential revision: https://reviews.llvm.org/D65214

llvm-svn: 367203
2019-07-29 07:58:29 +00:00
George Rimar
99f73ebe5c [llvm-objcopy] - Reimplement strip-dwo-groups.test to stop using the precompiled object.
When llvm-copy removes .dwo sections the index of symbol table,
the indices of the symbols and the indices of the sections which go
after the removed ones changes. That affects on SHT_GROUP sections,
which needs to be updated.

Initially this test used a precompiled object, I rewrote it to use YAML
and improved a bit.

Differential revision: https://reviews.llvm.org/D65273

llvm-svn: 367202
2019-07-29 07:55:39 +00:00
Raphael Isemann
822c58704b [lldb][NFC] Remove DiagnosticManager::CopyDiagnostics
The Diagnostic class in LLDB is suppossed to be inherited from,
so just copying the diagnostics like this is wrong. The function
is also unused, so lets just get rid of it instead of creating
some cloning facility for it.

llvm-svn: 367201
2019-07-29 07:37:17 +00:00
Rui Ueyama
d524c17029 Return early. NFC.
llvm-svn: 367200
2019-07-29 05:24:51 +00:00
Mike Spertus
9aeab53eba Improve MSVC visualizers for DeclSpec and TemplateName
DeclSpec now shows the TypeRep, ExprRep, or DeclRep as appropriate
TemplateName decodes and displays the StorageType
A few minor refinements to other types

llvm-svn: 367199
2019-07-29 03:34:40 +00:00
Craig Topper
eb1beabad9 [X86] Don't use PMADDWD for vector add reductions of multiplies if the mul inputs have an additional user.
The pmaddwd inserts a truncate, if that truncate would end up
creating additional instructions instead of making a zext
narrower, then we shouldn't do it.

I've restricted this to only sse4.1 targets since on prior
targets the zext will be done in stages. So the truncate will
probably not create additional instructions. Might need some
more investigation of mul shrinking and the other pmaddwd
transform to be sure this is the right decision.

There might be a slight regression on AVX1 targets due to add
splitting. Hard to say for sure. Maybe we need to look into
using the vector reduction flag to use 2 narrow loads and a
blend instead of extracting and inserting.

llvm-svn: 367198
2019-07-29 01:36:58 +00:00
Craig Topper
ac9d0f4150 [X86] Add test cases to show missing one use check in combineLoopMAddPattern.
llvm-svn: 367197
2019-07-29 01:36:54 +00:00
Roman Lebedev
6ff633ddc4 [NFC][InstCombine] Revisit tests in shift-amount-reassociation-with-truncation-shl.ll
llvm-svn: 367196
2019-07-28 21:31:58 +00:00
Craig Topper
894916cac9 [X86] In combineLoopMAddPattern and combineLoopSADPattern, preserve the vector reduction flag on the final add. Handle unrolled loops by letting DAG combine revisit.
This reverts r340478 and r340631 and replaces them with a simpler
method of just letting DAG combine revisit the nodes to handle
the other operand.

llvm-svn: 367195
2019-07-28 18:45:42 +00:00
Sanjay Patel
99c57c6daf [InstCombine] fold fsub+fneg with fdiv/fmul between
The backend already does this via isNegatibleForFree(),
but we may want to alter the fneg IR canonicalizations
that currently exist, so we need to try harder to fold
fneg in IR to avoid regressions.

llvm-svn: 367194
2019-07-28 17:10:06 +00:00
Gabor Borsik
2c8098374b Buildbot fix for r367190
llvm-svn: 367193
2019-07-28 14:57:41 +00:00
David Green
b8b8b46a51 [ARM] MVE VPNOT
This adds the patterns required to transform xor P0, -1 to a VPNOT. The
instruction operands have to change a little for this, adding an in and an out
VCCR reg and using a custom DecodeMVEVPNOT for the decode.

Differential Revision: https://reviews.llvm.org/D65133

llvm-svn: 367192
2019-07-28 14:07:48 +00:00
David Green
9cf344e739 [ARM] Better patterns for fp <> predicate vectors
These are some better patterns for converting between predicates and floating
points. Much like the extends, we select "1"/"-1" or "0" depending on the
predicate value. Or we perform a compare against 0 to convert to a predicate.

Differential Revision: https://reviews.llvm.org/D65103

llvm-svn: 367191
2019-07-28 13:53:39 +00:00
Gabor Borsik
4bde15fe1e [analyzer] Add yaml parser to GenericTaintChecker
While we implemented taint propagation rules for several
builtin/standard functions, there's a natural desire for users to add
such rules to custom functions.

A series of patches will implement an option that allows users to
annotate their functions with taint propagation rules through a YAML
file. This one adds parsing of the configuration file, which may be
specified in the commands line with the analyzer config:
alpha.security.taint.TaintPropagation:Config. The configuration may
contain propagation rules, filter functions (remove taint) and sink
functions (give a warning if it gets a tainted value).

I also added a new header for future checkers to conveniently read YAML
files as checker options.

Differential Revision: https://reviews.llvm.org/D59555

llvm-svn: 367190
2019-07-28 13:38:04 +00:00
Roman Lebedev
d5bc4b09f1 [NFC][InstCombine] Shift amount reassociation: can have trunc between shl's
https://rise4fun.com/Alive/OQbM
Not so simple for lshr/ashr, so those maybe later.

https://bugs.llvm.org/show_bug.cgi?id=42391

llvm-svn: 367189
2019-07-28 13:13:46 +00:00
Eugene Leviant
45d910de99 Don't initialize interceptor_metadata_map unless SI_POSIX is set
Differential revision: https://reviews.llvm.org/D64794

llvm-svn: 367188
2019-07-28 08:58:44 +00:00
Hideto Ueno
e7bea9b73a [Attributor] Deduce "align" attribute
Summary:
Deduce "align" attribute in attributor.

Reviewers: jdoerfert, sstefan1

Reviewed By: jdoerfert

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64152

llvm-svn: 367187
2019-07-28 07:04:01 +00:00
Raphael Isemann
bd68a052f2 [lldb] Also include the array definition in CommandOptions.inc
Summary:
Right now our CommandOptions.inc only generates the initializer for the options list but
not the array declaration boilerplate around it. As the array definition is identical for all arrays,
we might as well also let the CommandOptions.inc generate it alongside the initializers.

This patch will also allow us to generate additional declarations related to that option list in
the future (e.g. a enum class representing the specific options which would make our
handling code less prone).

This patch also fixes a few option tables that didn't follow our naming style.

Reviewers: JDevlieghere

Reviewed By: JDevlieghere

Subscribers: abidh, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D65331

llvm-svn: 367186
2019-07-28 06:24:07 +00:00
Hideto Ueno
afd4a37b2a [IR] Fix getPointerAlignment for CallBase
Summary:
In current getPointerAlignemnt implementation, CallBase.getPointerAlignement(..) checks only parameter attriutes in the callsite.  For example,

```
declare align 8 i8* @foo()

define void @bar() {
    %a = tail call align 8 i8* @foo() ; getPointerAlignment returns 8
    %b = tail call i8* @foo() ; getPointerAlignemnt returns 0
    ret void
}
```

This patch will fix the problem.

Reviewers: jdoerfert

Reviewed By: jdoerfert

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65281

llvm-svn: 367185
2019-07-28 06:17:46 +00:00