This reverts commit ea1826ee.

This change is breaking the ability of tests to override the profile
output file. Need to add a mechanism to do that before resubmitting.

NVPTX/dont-introduce-addrspacecast.ll required manually removing a check for
a bitcast.

AArch64/combine-address-mode.ll required rerunning update_test_checks

Mips required some manual updates due to a CHECK-NEXT coming after a
deleted bitcast.

ARM/sink-addrmode.ll needed one small manual fix.

Excludes one X86 function which needs more attention.

All east asian width wide and full-width codepoints
are considered double width, as well as emojis and
symbols commonely rendered as emoji.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D138518

This was as easy as running the script and running
update_test_checks. I did notice the pass produces some GEPs with 0
indexes, such that running the opaquify script a second time produces
a diff.

Once again the script decided to delete an llvm.assume declaration
which I manually restored.

For consistency with the rest of the code base.

basic.ll:test_lifetime_bitcast is a strange case. The comment says
it's trying to keep the lifetime intrinsics for bitcasts. Leave a
dummy bitcast for now to keep it happy.

This was a painless conversion.

The plan is to intersect this list with the checks selected per config.
This is not yet done, but the initial list is checked in as a baseline.

https://github.com/clangd/clangd/issues/1337

Differential Revision: https://reviews.llvm.org/D138491

It doesn't really make sense for the bfloat matmul to derive
from sve_bfloat_dot_base, especially since it's not used
anywhere else.

Differential Revision: https://reviews.llvm.org/D138787

This revision exports `collapseGenericOpIterationDims` to a header so it can be used outside of the pattern.  We have use-case where we want to call this function directly.

Reviewed By: springerm

Differential Revision: https://reviews.llvm.org/D138697

Based on include-cleaner's version, but:

- remove assert that can fail for input `/\<newline>* */`
- assert was also checking the wrong condition: that the prefix *differed* from
  either `//` or from `/*`. Avoid use of strncmp where we can.
- add a comment that the brittleness of the text matching is intentional

Differential Revision: https://reviews.llvm.org/D138780

Follow-up for D133296 / e16d5997

Buildbot example: https://lab.llvm.org/buildbot/#/builders/6/builds/16989

This patch also implements not emit fence in atomic binary operation
when AtomicOrdering is monotonic and fixes the issue of loading from
non ptr parameters.

The processing of other levels of AtomicOrdering will be added later.

Differential Revision: https://reviews.llvm.org/D138481

The Assignment Tracking debug-info feature is outlined in this RFC:

https://discourse.llvm.org/t/
rfc-assignment-tracking-a-better-way-of-specifying-variable-locations-in-ir

Split dbg.assign intrinsics into fragments similarly to what SROA already does
for dbg.declares, except that there's many more intrinsics to split. The
function migrateDebugInfo generates new dbg.assigns intrinsic for each part of
a split store.

Reviewed By: jmorse

Differential Revision: https://reviews.llvm.org/D133296

Differential Revision: https://reviews.llvm.org/D138216

To generate code compatible to streaming mode:
 - enable expanding ISD::SETUEQ to avoid custom-lowering setcc to setcc_merge_zero
   which cause a crash while instruction selection because there is no pattern match for it.

- Testing files:
 - fp-compares.ll

Differential Revision: https://reviews.llvm.org/D138670

Also added FileCheck verification to three old tests that only
verified that we did not crash.

Became unused in https://reviews.llvm.org/D138492 .