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Bootstrap Linux cross Linux fast Tests msc on Linux Tests on Linux
Saleem Abdulrasool
CodeGen: use range based for loops (NFC)

Simplify the RPOT traversal by using a range based for loop for the
iterator dereference.
Quentin Colombet
Revert "[MIRPrinter] Print empty successor lists when they cannot be guessed"

This reverts commit r313685.

I thought I had ran ninja check, but apparently I didn't...
Need to update a bunch of mir tests.
Quentin Colombet
[MIRPrinter] Print empty successor lists when they cannot be guessed

Unreachable blocks in the machine instr representation are these
weird empty blocks with no successors.
The MIR printer used to not print empty lists of successors. However,
the MIR parser now treats non-printed list of successors as "please
guess it for me". As a result, the parser tries to guess the list of
successors and given the block is empty, just assumes it falls through
the next block (if any).

For instance, the following test case used to fail the verifier.
The MIR printer would print
        /      \
    true (def)  false (no list of successors)
  split.true (use)

The MIR parser would understand this:
        /      \
    true (def)  false
        |        /  <-- invalid edge
  split.true (use)

Because of the invalid edge, we get the "def does not
dominate all uses" error.

The fix consists in printing empty successor lists, so that the parser

Andrew Kaylor
Fix 32-bit buildbots by removing tests that are dependent on pointer-size comparisons.

The recently behavior in the code that these tests were meant to be checking will be ammended as soon as a suitable change can be properly reviewed.
Roman Lebedev
Revert "[Sema] Move some stuff into -Wtautological-unsigned-enum-zero-compare"

This reverts commit r313677.

Buildbots fail with assertion failure
Failing Tests (7):
    Clang :: Analysis/null-deref-ps.c
    Clang :: CodeGen/enum.c
    Clang :: Sema/compare.c
    Clang :: Sema/outof-range-constant-compare.c
    Clang :: Sema/tautological-unsigned-enum-zero-compare.c
    Clang :: Sema/tautological-unsigned-zero-compare.c
    Clang :: SemaCXX/compare.cpp
Jake Ehrlich
Reland "[llvm-objcopy] Add support for nested and overlapping segments"

I didn't initialize a pointer to be nullptr that I needed to.

This change adds support for nested and even overlapping segments. This means
that PT_PHDR, PT_GNU_RELRO, PT_TLS, and PT_DYNAMIC can be supported properly.

Differential Revision: https://reviews.llvm.org/D36558
Rui Ueyama
Rename CieRecord instance variables.

CieRecord is a struct containing a CIE and FDEs, but oftentimes the
struct itself is named `Cie` which caused some confusion. This patch
renames them `CieRecords` or `Rec`.
Jonathan Roelofs
[ARM] Relax 'cpsie'/'cpsid' flag parsing.

The ARM docs suggest in examples that the flags can have either case, and there
are applications in the wild that (libopencm3, for example) that expect to be
able to use the uppercase spelling.

Reid Kleckner
Revert "[DebugInfo] Insert DW_OP_deref when spilling indirect DBG_VALUEs"

This reverts r313640, originally r313400, one more time for essentially
the same issue. My BitVector of spilled location numbers isn't working
because we coalesce identical DBG_VALUE locations as we rewrite them,
invalidating the location numbers used to index the BitVector.
Dehao Chen
Import all inlined indirect call targets for SamplePGO.

Summary: In the ThinLTO compilation, if a function is inlined in the profiling binary, we need to inline it before annotation. If the callee is not available in the primary module, a first step is needed to import that callee function. For the current implementation, if the call is an indirect call, which has been promoted to >1 targets and inlined, SamplePGO will only import one target with the largest sample count. This patch fixed the bug to import all targets instead.

Reviewers: tejohnson, davidxl

Reviewed By: tejohnson

Subscribers: sanjoy, llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D36637
Roman Lebedev
[Sema] Move some stuff into -Wtautological-unsigned-enum-zero-compare

As requested by Sam McCall:
> Enums (not new I guess). Typical case: if (enum < 0 || enum > MAX)
> The warning strongly suggests that the enum < 0 check has no effect
> (for enums with nonnegative ranges).
> Clang doesn't seem to optimize such checks out though, and they seem
> likely to catch bugs in some cases. Yes, only if there's UB elsewhere,
> but I assume not optimizing out these checks indicates a deliberate
> decision to stay somewhat compatible with a technically-incorrect
> mental model.
> If this is the case, should we move these to a
> -Wtautological-compare-enum subcategory?

Reviewers: rjmccall, rsmith, aaron.ballman, sammccall, bkramer, djasper

Reviewed By: aaron.ballman

Subscribers: jroelofs, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D37629
Vadzim Dambrouski
[MSP430] Align functions on 2-byte boundary instead of 4.

There is no benefit in having the 4-byte alignment, and removing this
restriction can save a lot of space for some applications.

Reviewers: asl, awygle

Reviewed By: awygle

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D36165
Rachel Craik
[OpenMP] fix seg-faults printing diagnostics with invalid ordered(n) values

When the value specified for n in ordered(n) is larger than the number of loops a segmentation fault can occur in one of two ways when attempting to print out a diagnostic for an associated depend(sink : vec):
1) The iteration vector vec contains less than n items
2) The iteration vector vec contains a variable that is not a loop control variable
This patch addresses both of these issues.

Differential Revision: https://reviews.llvm.org/D38049
Craig Topper
[TableGen] Generate formatted DAGISelEmitter without relying on formatted_raw_ostream.

The generated DAG isel file currently makes use of formatted_raw_ostream primarily for generating a hierarchical representation while also skipping over the initial comment that contains the current index.

It was reported in D37957 that this formatting might be slow due to the need to keep track of column numbers by monitoring all the written data for new lines.

This patch attempts to rewrite the emitter to make use of simpler formatting mechanisms to generate a fairly similar output. The main difference is that the number in the index comment is now right justified and padded with spaces inside the comment. Previously we appended the spaces after the comment.

Differential Revision: https://reviews.llvm.org/D37966
Adrian Prantl
llvm-dwarfdump: un-hide more command line options
Adrian Prantl
Move test into non-target-specific directory.
Sanjay Patel
[SimplifyCFG] fix typos/formatting; NFC
Stanislav Mekhanoshin
[AMDGPU] Prevent post-RA scheduler from breaking memory clauses

The pre-RA scheduler does load/store clustering, but post-RA
scheduler undoes it. Add mutation to prevent it.

Differential Revision: https://reviews.llvm.org/D38014
Ulrich Weigand
[SystemZ] Fix truncstore + bswap codegen bug

SystemZTargetLowering::combineSTORE contains code to transform a
combination of STORE + BSWAP into a STRV type instruction.

This transformation is correct for regular stores, but not for
truncating stores.  The routine neglected to check for that case.

Fixes a miscompilation of llvm-objcopy with clang, which caused
test suite failures in the SystemZ multistage build bot.
Saleem Abdulrasool
Revert "ExecutionEngine: add R_AARCH64_ABS{16,32}"

This reverts commit SVN r313654.  Seems that it is triggering an
assertion on Windows specifically.  Revert until I can build on Windows
and look into what is happening there.
Rui Ueyama
Simplify. NFC.
Andrew Kaylor
Teach clang to tolerate the 'p = nullptr + n' idiom used by glibc

Differential Revision: https://reviews.llvm.org/D37042
Jake Ehrlich
Revert "[llvm-objcopy] Add support for .dynamic, .dynsym, and .dynstr"

This reverts commit r313663. Broken because overlapping-sections was
Jake Ehrlich
Revert "[llvm-objcopy] Add support for nested and overlapping segments"

This reverts commit r313656. Appears to be broken on Windows.
Jake Ehrlich
[llvm-objcopy] Add support for .dynamic, .dynsym, and .dynstr

This change adds support for sections involved in dynamic loading such
as SHT_DYNAMIC, SHT_DYNSYM, and allocated string tables.

The two added binaries used for tests can be downloaded [[
| here ]] and [[
| here ]]

Differential Revision: https://reviews.llvm.org/D36560