Followup for https://github.com/llvm/llvm-project/pull/75373

1. Make this feature not just available for android, but everyone.
2. Correct some target triples.
3. Add opencl to the environment type list.

If we have a shifted mask, we may be able to reduce the load width
to the width of the non-zero part of the mask and use an offset
to the base address to remove the srl. The offset is given by
C+trailingzeros(ShiftedMask).
    
Then we add a final shl to restore the trailing zero bits.
    
I've use the ARM test because that's where the existing (and (srl
(load))) tests were.
    
The X86 test was modified to keep the H register.

Replace calls to getShiftAmountTy+getConstant with
getShiftAmountContant.

* Revise instructions for regeneration, not to create executables.
* Add instructions to regenerate both object files and test vectors
(except for `mcdc-general-none.proftext`)
* Reformat

The RTBS_None option in Clang-format avoids breaking after a short
return type.
However, there was an issue with the behaviour in that it wouldn't take
the leading indentation of the line into account.
This meant that the behaviour wasn't applying when intended.

In order to address this situation without breaking the existing
formatting, RTBS_None has been deprecated.
In its place are two new options for AlwaysBreakAfterReturnType.
The option RTBS_Automatic will break after the return type based on
PenaltyReturnTypeOnItsOwnLine.
The option RTBS_ExceptShortType will take the leading indentation into
account and prevent breaking after short return types.

This allows the inconsistent behaviour of RTBS_None to be avoided and
users to decide whether they want to allow breaking after short return
types or not.

Resolves #78010

The implementation of `FormatCache::Entry
&FormatCache::GetEntry(ConstString)` is effectively a duplication of
`std::map::operator[]`. This change deletes `GetEntry` and replaces its
use with `operator[]`.

To register the conversion the autogenerated function
`registerSCFToEmitC()` calls `createSCFToEmitC()`, which itself is also
autogenerated. The removed function, however, isn't used in the upstream
codebase.

This patch will also expand supports for attribute/target, while
the priority of newly supported ISAs will be set to zero.

This patch replaces min/max intrinsic with one of its operands if
possible.
Alive2: https://alive2.llvm.org/ce/z/LoHfYf
Fixes #75155.

Previously we stored MachineInstr which restricted the implementation
to only handle operand 0.

The TH_LWD instruction has two sign extended destinations.

table.grow is valid with type `[t i32] -> [i32]`.
Fixes: #79966.

Modifying a cherry-picked patch to fix code formatting issues can be
risky, so we don't typically do this. Therefore, it's not necessary to
run this job on the release branches.

This action is really just a wrapper around cmake and ninja. It doesn't
add any value to the builds, and I don't think we need it now that there
are reusable workflows.

Implement handling of get/set floating point environment for ARM in
Global Instruction Selector. Lowering of these intrinsics to operations
on FPSCR was previously inplemented in DAG selector, in GlobalISel it is
reused.

This adds GCC-compatible names for code model selection on 64-bit SPARC
with absolute code.
Testing with a 2-stage build then running codegen tests works okay under
all of the supported code models.

(32-bit target does not have selectable code models)

Reviewed By: @brad0, @MaskRay 

According to the C++ standard, `dynamic_cast` of pointers either returns
a pointer (7.6.1.7) or results in undefined behavior (11.9.5). This
patch marks `__dynamic_cast` as `willreturn` to remove unused calls.

Fixes #77606.

We had the isel patterns, but no tests that used them. We only had
sextload and zextload tests.

Also reduce the alignment on some of the test cases that were
unnecessarily over aligned.

For the current version of the PR43024 test, we should be able to
optimize away the operations but fail to do so. This commit adds a
strictfp version of the test where we should not be able to optimize
away the operations, as a verification that changes to improve the other
effect have no adverse effect.

This reapplies #76657. Non-trivial elements didn't get destroyed
previously. This fixes the bug and adds tests for all the vector
insertion functions.

This patch folds:
```
(icmp eq (and (bitcast X to int), ExponentMask), ExponentMask) --> llvm.is.fpclass(X, fcInf|fcNan)
(icmp ne (and (bitcast X to int), ExponentMask), ExponentMask) --> llvm.is.fpclass(X, ~(fcInf|fcNan))
```
Alive2: https://alive2.llvm.org/ce/z/_hXAAF