Differential Revision: https://reviews.llvm.org/D86992

This can cause an infinite loop if SimplifiedDemandedElts asks
for the node to replace itself.

A similar protection exists in other places in shuffle combining.

Fixes ISPC https://github.com/ispc/ispc/issues/1864

Differential Revision: https://reviews.llvm.org/D86991

TPCDynamicLibrarySearchGenerator was generating errors on missing
symbols, but that doesn't fit the DefinitionGenerator contract: A symbol
that isn't generated by a particular generator should not cause an
error.

This commit fixes the error by using SymbolLookupFlags::WeaklyReferencedSymbol
for all elements of the lookup, and switches llvm-jitlink to use
TPCDynamicLibrarySearchGenerator.

This is a presumed fix for FireFox thinLTO bot fix which hits assertion
failure for invalid index when access StringRef. Techinically, `IRName`
in the symtab should not be empty string for the entries we cared about
but this will help to fix the bot before more information can be
provided. Otherwise, NFCI.

The load builtins in altivec.h do not have const in the signature
for the pointer parameter. This prevents using them for loading
from constant pointers. A notable case for such a use is Eigen.

This patch simply adds the missing const.

Fixes: https://bugs.llvm.org/show_bug.cgi?id=47408

We also have to check all uses between the killing & killed def and
check if any of them is throwing.

rdar://problem/67892794

Speculatively fix `-Werror,-Wmissing-field-initializers` failures
relating to the `ScalePerExecTime` field added by D86092.

I recently came across a MachO with multiple sections of the same name but
different segments. We should emit the segment name alongside the section name
for MachO's.

Differential Revision: https://reviews.llvm.org/D87119

Some tests from multibuild-malloc-free.ll do not actually use malloc or
free and where split out to multiblock-throwing.ll, but not removed from
the original file. This patch cleans that up. It also moves @test22 to
simple.ll, because it does not involve multiple blocks.

Differential Revision: https://reviews.llvm.org/D84248

Add new conversion with clearly specified semantics.

https://reviews.llvm.org/D86990

When checking call sites, give special handling to indirect call, as the
callee may be unknown and can lead to nullptr dereference later. Assume
conservatively that the ICV always changes in such case.

Reviewed By: sstefan1

Differential Revision: https://reviews.llvm.org/D87104

Addresses post-review comments from D85948, which can be found here:
https://reviews.llvm.org/rG7ed8124d46f9.

Currently a test failure always reports a line number inside verifyFormat()
which is not very helpful to see which test failed. With this change we now
emit the line number where the verify function was called. When using an
IDE such as CLion, the output now includes a clickable link that points to
the call site.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D86926

Currently clang-format starts overriding the default values at index 0
(keeping the existing values) instead of appending or replacing all values.
This patch simply checks the current (IMO surprising) behaviour and does
not attempt to change it.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D86941

Before:
x = (foo *__ptr32) * v;
MACRO(A * __ptr32 a);
x = (foo *__ptr64) * v;
MACRO(A * __ptr64 a);

After:
x = (foo *__ptr32)*v;
MACRO(A *__ptr32 a);
x = (foo *__ptr64)*v;
MACRO(A *__ptr64 a);

Depends on D86721 (to apply cleanly)

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D86775

Add the functionality to lower SVE rounding operations for passthru variant.
Created a new test case file for all rounding operations.

Reviewed By: paulwalker-arm

Differential Revision: https://reviews.llvm.org/D86793

Since this is an internal header, we can just assume static_assert
exists.

If this doesn't upset any bots, I'll replace all uses of
COMPILER_CHECK in a follow-up.

This reverts commit 8b8be6f3
and follow-ups 99a93c3a,
a9c0bf04,
48ac5b48.

It breaks building on Windows, see https://reviews.llvm.org/D86917#2255872

This patch enables users to handcraft custom contents for DWARF
sections. If we specify the contents of DWARF sections both in the
'DWARF' entry and the 'content', yaml2obj will emit an error message.
In addition, this patch helps remove the restriction that only the
content of sections whose segname are __DWARF can be specified in the
"DWARF" entry.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D87126

As discussed in D86843, -earlycse-debug-hash should be used in more regression
tests to catch inconsistency between the hashing and the equivalence check.

Differential Revision: https://reviews.llvm.org/D86863

This tests what caused the revert in 7b033238.

These fields will be used to choose/influence patterns for
SPIR-V code generation.

Reviewed By: mravishankar

Differential Revision: https://reviews.llvm.org/D87106

This reverts commit e6393ee8.
It breaks Wunreachable for weak attributes, see
http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20200831/336645.html

This patch moves the tests for the old MemDepAnalysis based DSE
implementation to the MemDepAnalysis subdirectory and updates them to
pass -enable-dse-memoryssa=false.

This is in preparation for the switch to MemorySSA-backed DSE.

This refactors the standalone-translate executable to use mlirTranslateMain() declared in Translation.h and further applies D87129.

Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D87131

Drops the include on InitAllDialects.h, as dialects are now initialized in the translation passes.

Differential Revision: https://reviews.llvm.org/D87129

In that case, the new MemoryDef needs to be inserted *before*
MemInsertPoint.