This helps debuggers to display values in bit-fields in a more helpful way.

This helps debuggers to display values in bit-fields in a more helpful way.

This adds support for marking arbitrary general purpose registers -
except for those with special purpose (G0, I6-I7, O6-O7) - as reserved,
as needed by some software like the Linux kernel.

All the hoistRedundantVectorTransfers op does is walk the target
operation, which does not have to be restricted to func.func.

- Enable equivalent between `brcond` and `G_BRCOND`.
- Remove the manual selection of `G_BRCOND` in Mips. Revise test cases.

Reviewers: petar-avramovic, bcardosolopes, arsenm

Reviewed By: arsenm

Pull Request: https://github.com/llvm/llvm-project/pull/81306

LLDB_RELOCATABLE_PYTHON was removed in LLVM 11
(https://github.com/llvm/llvm-project/commit/3ec3f62f0a0b1ac13230922c91ffc988c1b1e8d5).

The SOURCE_DATE_EPOCH environment variable can be set in order to get
reproducible build.

When linking PE/COFF modules with LLD, the timestamp field is set to the
current time, unless either the /timestamp: or /Brepro option is set. If
neither of them is set, check the SOURCE_DATE_EPOCH variable, before
resorting to using the actual current date and time.

See https://reproducible-builds.org/docs/source-date-epoch/ for reference
on the use of this variable.

This helps debuggers to display values in bit-fields in a more helpful way.

So that they do not use coroutine keywords.
Fixed buildbot failure https://lab.llvm.org/buildbot/#/builders/86/builds/74100

This helps debuggers to display values in bit-fields in a more helpful way.

This helps debuggers to display values in bit-fields in a more helpful way.

This patch sorts stack objects by their alignment value from the largest
to the smallest. If two objects have the same alignment, then they are
sorted by their size from the largest to the smallest. This minimizes
padding and reduces run time stack size.

This helps debuggers to display values in bit-fields in a more helpful way.

The code is heavily based on the vector data formatter.

close #79708

This can happen when an initializer returns a dummy pointer.

This is currently NFC but required for later changes. A Ret op
might fail and set the result to invalid, causing another setInvalid()
call, which asserts that the result is still empty.

We are replacing a narrow IV increment with a wider one. If the original
(narrow) increment did not wrap, the wider one should not wrap either.
Set the flags to be the union of both wide increment and original
increment; this ensures we preserve flags SCEV could infer for the wider
increment.

Fixes https://github.com/llvm/llvm-project/issues/71517.

Similar to D110763.

We were unnecessarily getting the pointer of the local variable twice.

Having the test in the header requires including unistd.h on POSIX
platforms. This header has other declarations which may conflict with
code that uses named declarations provided by this header. For example
code using "int pipe;" would conflict with the function pipe in this
header.

Moving the code to the dylib means std::print would not be available on
Apple backdeployment targets. On POSIX platforms there is no transcoding
required so a not Standard conforming implementation is still a useful
and the observable differences are minimal. This behaviour has been done
for print before https://github.com/llvm/llvm-project/pull/76293.

Note questions have been raised in LWG4044 "Confusing requirements for
std::print on POSIX platforms", whether or not the isatty check on POSIX
platforms is required. When this LWG issue is resolved the
backdeployment targets could become Standard compliant.

This patch is intended to be backported to the LLVM-18 branch.

Fixes: https://github.com/llvm/llvm-project/issues/79782

[Flang] Support passing a function that returns procedure pointer as actual corresponding to a procedure dummy. (#80891)

Flang crashes with the following case. The problem is we missed the case
when passing a reference to a function that returns a procedure pointer
as actual that corresponds to a procedure dummy. This PR is to fix that.

```
  PROGRAM main
  IMPLICIT NONE
  INTERFACE
    FUNCTION IntF(Arg)
      integer :: Arg, IntF
    END FUNCTION
  END INTERFACE

  INTERFACE
    FUNCTION RetPtr(Arg)
      IMPORT
      PROCEDURE(IntF) :: Arg
      PROCEDURE(IntF), POINTER :: RetPtr
    END FUNCTION
  END INTERFACE

  CALL ModSub(RetPtr(IntF))
  contains
    SUBROUTINE ModSub(Fun1)
    PROCEDURE(IntF) :: Fun1
    END SUBROUTINE
  END
  ```

After applying the review comments of
https://github.com/llvm/llvm-project/pull/80478
I've forgotten to update the generated files. This fixes the issue and
removes trailing whitespace.

-DLIBCXX_ENABLE_UNICODE=OFF or -D_LIBCPP_HAS_NO_UNICODE doesn't build
without this change.

This patch enable hardware shadow stack with `Zicifss` and
`mno-forced-sw-shadow-stack`. New feature forced-sw-shadow-stack
disables hardware shadow stack even when `Zicfiss` enabled.

Applies LWG3050 to the constraints of operator*, operator/, and
operator%. The changes to the constructor were done in
https://reviews.llvm.org/D118902

, but that patch did not identify the
related LWG-issue, and only adjusted the constructor to the wording in
the Standard.

Implements:
- LWG 3050: Conversion specification problem in chrono::duration
constructor

---------

Co-authored-by: h-vetinari <h.vetinari@gmx.com>

ARM64EC import libraries expose two additional symbols: mangled thunk
symbol (like `#func`) and auxiliary import symbol (like`__imp_aux_func`).
The main functional change with this patch is that those symbols are
properly added to static library ECSYMBOLS.

This reverts commit bb5c3899.

That commit caused failed asserts like this:

$ cat repro.c
float a, b;
double sqrt();
void c() { b = a / sqrt(a); }
$ clang -target x86_64-linux-gnu -c -O2 -ffast-math repro.c
clang: ../lib/IR/Instruction.cpp:522: bool llvm::Instruction::hasAllowReassoc() const: Assertion `isa<FPMathOperator>(this) && "getting fast-math flag on invalid op"' failed.

Add a pass to convert jump tables to switches.
The new pass replaces an indirect call with a switch + direct calls if all the functions in the jump table are smaller than the provided threshold.
The pass is currently disabled by default and can be enabled by -enable-jump-table-to-switch.

Test plan: ninja check-all

I was looking through to check whether Nan was being handled correctly,
and couldn't work out why simple cases were behaving differently than
they should. It turns out the initial limit values was backwards for
minloc/maxloc reductions in general. This fixes that, introduced in
#79469.

I don't think the transient alignment needs to be larger than the
ABI alignment.

We apply custom lowering to 64 bit constants where we use the same logic
as in non-global isel: if materializing in registers is too expensive,
we emit a load from constant pool. Later, during instruction selection,
constant pool address is generated using `selectAddr`.

This makes it easier to run the tests in a containerized environment.