llvm-svn: 373222

      Reviewers: rampitec

      Differential Revision: https://reviews.llvm.org/D67662

llvm-svn: 373221

trigger stack protectors.  Fixes PR42238.

Add test coverage for llvm.memset, as proxy for all llvm.mem*
intrinsics. There are two issues here: (1) they could be lowered to a
libc call, which could be intercepted, and do Bad Stuff; (2) with a
non-constant size, they could overwrite the current stack frame.

The test was mostly written by Matt Arsenault in r363169, which was
later reverted; I tweaked what he had and added the llvm.memset part.

Differential Revision: https://reviews.llvm.org/D67845

llvm-svn: 373220

Differential Revision: https://reviews.llvm.org/D67844

llvm-svn: 373219

-main-file-name is currently used to set the source name used in debug
information.

If the source filename is "-" and -main-file-name is set, then use the
filename also for source_filename and ModuleID of the output.

The argument is generally used outside the internal clang calls when
running clang in a wrapper like icecc which gives the source via stdin
but still wants to get a object file with the original source filename
both in debug info and IR code.

Patch by: the_jk (Joel Klinghed)

Differential Revision: https://reviews.llvm.org/D67592

llvm-svn: 373217

"Captured" and "relevant to Stack Protector" are not the same thing.

This reverts commit f29366b1.
aka r363169.

Differential Revision: https://reviews.llvm.org/D67842

llvm-svn: 373216

weekend!

llvm-svn: 373215

Summary:
Previously IntrinsicInfo::size was an unsigned what can't represent the
64 bit value used by MemoryLocation::UnknownSize.

Reviewers: jmolloy

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68219

llvm-svn: 373214

This header is included by C code so the functions need to have a prototype. Also, fix the function definitions so that they have C linkage rather than C++ linkage.

llvm-svn: 373213

Summary:
Remove use of FileCheckPatternContext and FileCheckString concrete types
from FileCheck API to allow moving it and the other implementation only
only declarations into a private header file.

Reviewers: jhenderson, chandlerc, jdenny, probinson, grimar, arichardson, rnk

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68186

llvm-svn: 373211

llvm-svn: 373210

Summary: And rename to exegesis::Failure, as it's used everytwhere.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68217

llvm-svn: 373209

Summary:
It uses the new ability of ABI plugins to vend llvm::MCRegisterInfo
structs (which is what is needed to turn dwarf register numbers into
strings).

Reviewers: JDevlieghere, aprantl, jasonmolenda

Subscribers: tatyana-krasnukha, lldb-commits

Differential Revision: https://reviews.llvm.org/D67966

llvm-svn: 373208

Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: jholewinski, arsenm, jvesely, nhaehnle, eraman, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D68141

llvm-svn: 373207

This was originally a 'do { ... } while (false);' like in the rest
of the function, but the do was refactored into an 'if' without
also removing the trailing 'while(false);'

llvm-svn: 373206

Differential Revision: https://reviews.llvm.org/D67339

llvm-svn: 373205

llvm-svn: 373204

Summary: Add unit tests.

Reviewers: gchatelet

Subscribers: mgorny, tschuett, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68212

llvm-svn: 373202

The problem with r370734 was that it removed the code for resetting the options in
OptionParsingStarting. This caused that once a 'frame select -r ...' command was executed,
we kept the relative index argument for all following 'frame select ...' invocations (even
the ones with an absolute index as they are the same command object). See rdar://55791276.

This relands the patch but keeps the code that resets the command options before execution.

llvm-svn: 373201

This reverts commit rL373183.

llvm-svn: 373200

llvm-svn: 373199

The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373198

Summary:
This patch implements another version header-source switch by incorporating the
AST and index, it will be used:
  - to improve the current header-source switch feature (layer with the
    existing file heuristic);
  - by the incoming define-outline code action;

Reviewers: kadircet

Subscribers: mgorny, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D67907

llvm-svn: 373197

Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68201

llvm-svn: 373196

Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet, jdoerfert

Subscribers: hiraditya, asbirlea, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D68142

llvm-svn: 373195

This somehow caused that 'frame select X' ends up being interpreted as 'frame select -r 1' when 'up' or 'down'
were run before 'frame select X'. See rdar://55791276.
Partly reverting to unbreak master. The changes that aren't reverted are the generic 'frame select -r' tests
that are obviously NFC and test existing behavior.

llvm-svn: 373194

Summary:
The ExternalASTMerger should use the ASTImporterSharedState. This allows it to
handle std::pair in LLDB (but the rest of libc++ is still work in progress).

Reviewers: martong, shafik, a.sidorin

Subscribers: rnkovacs, christof, JDevlieghere, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68140

llvm-svn: 373193

Add some loop tests that cover different float operations and types.

llvm-svn: 373192

llvm-svn: 373191

llvm-svn: 373190

llvm-svn: 373189

The VCTP instruction will calculate the predicate masked based upon
the number of elements that need to be processed. I had inserted the
sub before the vctp intrinsic and supplied it as the operand, but
this is incorrect as the phi should directly feed the vctp. The sub
is calculating the value for the next iteration.

Differential Revision: https://reviews.llvm.org/D67921

llvm-svn: 373188

ISD::SADDO uses the suggested sequence described in the section §2.4 of
the RISCV Spec v2.2. ISD::SSUBO uses the dual approach but checking for
(non-zero) positive.

Differential Revision: https://reviews.llvm.org/D47927

llvm-svn: 373187

As we perform a zext on any arguments used in the promoted tree, it
doesn't matter if they're marked as signext. The only permitted
user(s) in the tree which would interpret the sign bits are signed
icmps. For these instructions, their promoted operands are truncated
before the icmp uses them.

Differential Revision: https://reviews.llvm.org/D68019

llvm-svn: 373186

The motivating SCEV change was reverted as incorrect.

llvm-svn: 373185

This reverts r366419 because the analysis performed is within the context of
the loop and it's only valid to add wrapping flags to "global" expressions if
they're always correct.

llvm-svn: 373184

The tool reports verbose output for the DWARF debug location coverage.
The llvm-locstats for each variable or formal parameter DIE computes what
percentage from the code section bytes, where it is in scope, it has
location description. The line 0 shows the number (and the percentage) of
DIEs with no location information, but the line 100 shows the number (and
the percentage) of DIEs where there is location information in all code
section bytes (where the variable or parameter is in the scope). The line
50..59 shows the number (and the percentage) of DIEs where the location
information is in between 50 and 59 percentage of its scope covered.

Differential Revision: https://reviews.llvm.org/D66526

llvm-svn: 373183

SystemZPostRewrite needs to be run before (it may emit COPYs) the Post-RA
pseudo pass also at -O0, so it should be added in addPostRegAlloc().

Review: Ulrich Weigand
llvm-svn: 373182

These are all also implemented in avx512_logical_lowering_types
with support for masking.

llvm-svn: 373181

llvm-svn: 373180