This change adds experimental support for SHT_RELR sections, proposed
here: https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg
Definitions for the new ELF section type and dynamic array tags, as well
as the encoding used in the new section are all under discussion and are
subject to change. Use with caution!
Author: rahulchaudhry
Differential Revision: https://reviews.llvm.org/D47919
llvm-svn: 335922
There's no way to expose this difference currently,
but we should use the updated variable because the
original opcodes can go stale if we transform into
something new.
llvm-svn: 335920
This is currently breaking because Linux target sysroots rely on
case sensitive filesystem which is not by default enabled on macOS.
Differential Revision: https://reviews.llvm.org/D48710
llvm-svn: 335919
This fixes a regression since SVN r334523, where the object files
built targeting MinGW were rejected by GNU binutils tools. Prior to
that commit, we only put constants in comdat for MSVC configurations.
Differential Revision: https://reviews.llvm.org/D48567
llvm-svn: 335918
First stage build is only a minimal build where we don't need
a complete multiarch support, but we need enough to build the
second stage.
Differential Revision: https://reviews.llvm.org/D48707
llvm-svn: 335917
Summary:
Use _LIBCPP_MSVCRT_LIKE while configuring ELAST, so MinGW gets the same
configuration as MSVC.
Reviewers: compnerd, srhines, danalbert, mstorsjo
Subscribers: christof, ldionne, cfe-commits
Differential Revision: https://reviews.llvm.org/D48731
llvm-svn: 335916
The format string for formatv allows to specify a custom padding
character instead of the default space. This custom character was
parsed correctly, but not passed on to the formatter.
Patch by Marcel Köppe
Differential Revision: https://reviews.llvm.org/D48140
llvm-svn: 335915
Summary:
The InlinerFunctionImportStats will collect and dump stats regarding how
many function inlined into the module were imported by ThinLTO.
Reviewers: wmi, dexonsmith
Subscribers: mehdi_amini, inglorion, llvm-commits, eraman
Differential Revision: https://reviews.llvm.org/D48729
llvm-svn: 335914
This provides an efficient (at least on Posix platforms) way to offload to the
target process the search & loading of a library when all we have are the
library name and a set of potential candidate locations.
<rdar://problem/40905971>
llvm-svn: 335912
A reduction for an incomplete array type used to produce an assert
fail during codegen. Now it produces a diagnostic.
Reviewed By: ABataev
Differential Revision: https://reviews.llvm.org/D48735
llvm-svn: 335911
Mostly just adding checks for Thumb2 instructions which correspond to
ARM instructions which already had diagnostics. While I'm here, also fix
ARM-mode strd to check the input registers correctly.
Differential Revision: https://reviews.llvm.org/D48610
llvm-svn: 335909
Summary: On Windows, the newer DIA SDKs end up producing function names that contain the return type as well. This means that the function name returned in the test will contain the return type (int) in addition to the name of the function and the type of the input (a(int)). To account for the possibility of both, the test should pass if the function name matches either pattern.
Reviewers: zturner, asmith
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D48654
llvm-svn: 335906
When rewriting an alloca partition copy the DL from the
old alloca over the the new one.
Differential Revision: https://reviews.llvm.org/D48640
llvm-svn: 335904
FileOutputBuffer creates a temp file and on commit atomically
renames the temp file to the destination file. Sometimes we
want to modify an existing file in place, but still have the
atomicity guarantee. To do this we can initialize the contents
of the temp file from the destination file (if it exists), that
way the resulting FileOutputBuffer can have only selective
bytes modified. Committing will then atomically replace the
destination file as desired.
llvm-svn: 335902
This allows overriding the strip and dsymutil tools, and updates
iOS.cmake to do so. I've also added libtool to iOS.cmake, but it was
already respecting CMAKE_LIBTOOL if set.
llvm-svn: 335900
r334477 renamed the cxx-headers target to cxx_headers, but various
pieces sort-of expect the target names to match the component (e.g.,
LLVM_DISTRIBUTION_COMPONENTS in the various bootstrap caches, which, via
some magic foreign to me, seems to expect cxx-headers,
install-cxx-headers, and install-cxx-headers-stripped to exist.)
Revert back to cxx-headers.
Differential Revision: https://reviews.llvm.org/D48701
llvm-svn: 335899
Since r334468, we no longer always copy the libcxx headers by virtue of
their presence when cmake runs.
This makes some of the later stages (compiler-rt, and the bootstrapped
stages) depend on them being copied, via the cxx-headers target.
Differential Revision: https://reviews.llvm.org/D48700
llvm-svn: 335898
The checking logic should not treat artificial locations as being
somehow problematic. Producing these locations can be the desired
behavior of some passes.
See llvm.org/PR37961.
llvm-svn: 335897
This is a follow up to r335753. At the time I forgot about isProfitableToFold which makes this pretty easy.
Differential Revision: https://reviews.llvm.org/D48706
llvm-svn: 335895
Reverting because this is causing failures in the LLDB test suite on
GreenDragon.
LLVM ERROR: unsupported relocation with subtraction expression, symbol
'__GLOBAL_OFFSET_TABLE_' can not be undefined in a subtraction
expression
llvm-svn: 335894
Optional<T> was broken due to a change in the class's internals.
That is fixed, and additionally a visualizer is added for
Expected<T>.
llvm-svn: 335892
Remove _VPMergeHook from Darwin's automatically-exported symbol list for
PGO. As of r328987 this symbol is no longer weak.
An integration test in compiler-rt will follow.
rdar://41470205
llvm-svn: 335890
This is an enhancement to D48401 that was discussed in:
https://bugs.llvm.org/show_bug.cgi?id=37806
We can convert a shift-left-by-constant into a multiply (we canonicalize IR in the other
direction because that's generally better of course). This allows us to remove the shuffle
as we do in the regular opcodes-are-the-same cases.
This requires a small hack to make sure we don't introduce any extra poison:
https://rise4fun.com/Alive/ZGv
Other examples of opcodes where this would work are add+sub and fadd+fsub, but we already
canonicalize those subs into adds, so there's nothing to do for those cases AFAICT. There
are planned enhancements for opcode transforms such or -> add.
Note that there's a different fold needed if we've already managed to simplify away a binop
as seen in the test based on PR37806, but we manage to get that one case here because this
fold is positioned above the demanded elements fold currently.
Differential Revision: https://reviews.llvm.org/D48485
llvm-svn: 335888
Targets should be able to define whether or not they support the outliner
without the outliner being added to the pass pipeline. Before this, the
outliner pass would be added, and ask the target whether or not it supports the
outliner.
After this, it's possible to query the target in TargetPassConfig, before the
outliner pass is created. This ensures that passing -enable-machine-outliner
will not modify the pass pipeline of any target that does not support it.
https://reviews.llvm.org/D48683
llvm-svn: 335887
We could get away with it for constant folded cases, but not for rL335719.
Thanks to Krzysztof Parzyszek for noticing.
Reapply original commit rL335821 which was reverted at rL335871 due to a WebAssembly bug that was fixed at rL335884.
llvm-svn: 335886
This reverts commit 9c7c10e4073a0bc6a759ce5cd33afbac74930091.
It relies on r335872 since that introduces the machine outliner
flags test. I meant to commit D48683 in that commit, but got mixed
up and committed D48682 instead. So, I'm reverting this and
r335872, since D48682 hasn't made it through review yet.
llvm-svn: 335882
We shouldn't add the outliner when compiling at -O0 even if
-enable-machine-outliner is passed in. This makes sure that we
don't add it in this case.
This also updates machine-outliner-flags to reflect the change
and improves the comment describing what that test does.
llvm-svn: 335879
This change effects the behavior of --export-all. Previously
--export-all would only effect symbols that survived GC. Now
--export-all will prevent any non-local symbols from being GCed.
Differential Revision: https://reviews.llvm.org/D48673
llvm-svn: 335878
Add NoTrapAfterNoreturn target option which skips emission of traps
behind noreturn calls even if TrapUnreachable is enabled.
Enable the feature on Mach-O to save code size; Comments suggest it is
not possible to enable it for the other users of TrapUnreachable.
rdar://41530228
DifferentialRevision: https://reviews.llvm.org/D48674
llvm-svn: 335877
Summary:
This stops clang-format from touching raw string contents with unrecognized delimiters inside recognized functions.
Unrecognized delimiters signal that the string might be special.
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D48728
llvm-svn: 335876
Function symbols that come from bitcode have not signatures.
After LTO when the real symbols are read in we need to make
sure that we set the signature on the existing symbol.
the signature-less undefined functions.
Differential Revision: https://reviews.llvm.org/D48693
llvm-svn: 335875
David Carlier