We are lacking builtins support for `_Float16`. In most cases, we can use other floating-type builtins and truncate them to `_Float16`.
But it's a problem to SNaN, e.g., https://gcc.godbolt.org/z/cqr5nG1jh
This patch adds `__builtin_nansf16` support as well as other 3 ones since they are usually used together.

Reviewed By: LuoYuanke

Differential Revision: https://reviews.llvm.org/D127050

https://alive2.llvm.org/ce/z/o7rQ5q

This shows an extra instruction in some cases, but that is
caused by an existing canonicalization of trunc -> and+icmp.

Codegen should be better for any target where a multiply is
more costly than the most simple ALU op.

This ends up producing the requested x86 asm from issue #55618,
but it's not the same IR. We are missing a canonicalization
from the negate+mask pattern to the trunc+select created here.

issue #55838

Similar to 98067998

Fixes #55853.

Differential Revision: https://reviews.llvm.org/D127054

The directive name is not useful because the next line replicates the error line
which includes the directive. The prevailing style uses "expected newline".

Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D123640

The directive name is not useful because the next line replicates the error line
which includes the directive. The prevailing style uses "expected newline".

Differential Revision: https://reviews.llvm.org/D127068

The `ranges.transform.pass.cpp` often times out on CI for AIX (32-bit and 64-bit)
only. Mark the test as `UNSUPPORTED` for `AIX` for now. It should be looked into in
the future.

Differential Revision: https://reviews.llvm.org/D127051

When building in debug mode, the link time of the standalone sample is excessive, taking upwards of a minute if using BFD. This at least allows lld to be used if the main invocation was configured that way. On my machine, this gets a standalone test that requires a relink to run in ~13s for Debug mode. This is still a lot, but better than it was. I think we may want to do something about this test: it adds a lot of latency to a normal compile/test cycle and requires a bunch of arg fiddling to exclude.

I think we may end up wanting a `check-mlir-heavy` target that can be used just prior to submit, and then make `check-mlir` just run unit/lite tests. More just thoughts for the future (none of that is done here).

Reviewed By: bondhugula, mehdi_amini

Differential Revision: https://reviews.llvm.org/D126585

This patch fixes:

  llvm/lib/Target/Sparc/AsmParser/SparcAsmParser.cpp:910:5: error:
  default label in switch which covers all enumeration values
  [-Werror,-Wcovered-switch-default]

Signed-off-by: Matheus Izvekov <mizvekov@gmail.com>

Differential Revision: https://reviews.llvm.org/D127074

This patch is extraction from the https://reviews.llvm.org/D126883.
It removes DwarfStringPoolEntryRef::isIndexed() and isIndexed bit
since they are not used.

Differential Revision: https://reviews.llvm.org/D126958

This patch introduces support for %hix, %lox, %gdop_hix22, %gdop_lox10 and %gdop.

An extra test is introduced to make sure the fixups are correctly applied.

Reviewed By: dcederman

Differential Revision: https://reviews.llvm.org/D102575

On targets with __float128 available and distinct from long double,
use it to support more kind=16 entry points.  This affects mostly
x86-64 targets.  This means that more runtime entry points are
defined for lowering to call.

Delete Common/long-double.h and its LONG_DOUBLE macro in favor of
testing the standard macro LDBL_MANT_DIG.

Differential Revision: https://reviews.llvm.org/D127025

The last use was removed on Feb 18, 2022 in commit
00ab91b7.

In some instances its advantageous to calculate edit distances without worrying about casing.
Currently to achieve this both strings need to be converted to the same case first, then edit distance can be calculated.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D126159

Recommit: "[MLIR][NVVM] Replace fdiv on fp16 with promoted (fp32) multiplication with reciprocal plus one (conditional) Newton iteration."

This change rolls bcfc0a90 forward (i.e., reverting 369ce54b) with fixed CMakeLists.txt.

Differential Revision: https://reviews.llvm.org/D101694

Instead of setting the successor to the exit using CFG.ExitBB, set it to
nullptr initially. The successor to the exit block is later set either
through createEmptyBasicBlock or after VPlan execution (because at the
moment, no block is created by VPlan for the exit block, the existing
one is reused).

This also enables BranchOnCond to be used as terminator for the exiting
block of the topmost vector region.

Depends on D126618.

Reviewed By: Ayal

Differential Revision: https://reviews.llvm.org/D126679

Avoids "pass state was never initialized" assertion failure.

Diagnose OPEN(FILE=f) when f is already connected by the same name to
a distinct external I/O unit.

Differential Revision: https://reviews.llvm.org/D127035