[DebugInfo] Don't match wrong NULL in CHECK lines of dwarf5-debug-info-static-member.ll (#184694)
Fixes failure on clang-ppc64le-rhel buildbot
(https://lab.llvm.org/buildbot/#/builders/145/builds/13080) after
#184219.
On ppc64le, children are not produced for DW_TAG_subprogram "main" in
this test. Therefore, dwarfdump doesn't print NULL after this tag. On
other platforms (AArch64/X86), DW_TAG_subprogram has DW_TAG_variable
"instance_C", which should not be matched by the check lines.
Loosened the check lines (turned CHECK-NEXT into CHECK) to make them
work for all mentioned platforms.
[Clang] Only define `wchar_size` module flag if non-standard (#184668)
Summary:
This PR simply changes the behavior of the `wchar_size` flag. Currently,
we emit this in all cases for all targets. This causes problems during
LLVM-IR linking, specifically because this would vary between Linux and
Windows in unintuitive ways. Now we have an llvm::Triple helper to
determine the size from the known values. The module flag will only be
emitted if these do not match (indicating a non-standard environment).
In addition to fixing AMDGCN bitcode linking, this also means we don't
need to bloat *every* IR module compiled by clang with this flag. The
changed tests reflects this, one less unnecessary piece of metadata.
[SLP]Do not consider split vectorize nodes as vector phi nodes
Split vectorize nodes should not be considered as vector PHI nodes, when
trying to find the insertion point for the postpotned nodes.
Fixes #184585
[clang-doc] Sort index and avoid non-determinism (#184675)
Consolidate logic to get sorted children from StringMap.
Using the new API makes it more natural to not miss cases
where we missed sorting the children directly.
This also allows us to remove -DAG checks from tests and have
deterministic ordering.
[CIR] Upstream global variable replacement (#184686)
This change upstreams the CIR implementation of global variable
replacement. When we get a call to get or create a global variable using
a type that does not match the previous type for a variable of the same
name, we need to replace the old definition with the new one. In classic
codegen that was as simple as replaceAllUses+eraseFromParent, but in CIR
because we have typed pointers, we need to visit the uses and update
them with bitcasts to reflect the new type.
