Craig Topper 1cef718e0f [X86] Turn v16i16->v16i8 truncate+store into a any_extend+truncstore if we avx512f, but not avx512bw. ...

Ideally we'd be able to represent this truncate as a any_extend to
v16i32 and a truncate, but SelectionDAG doens't know how to not
fold those together.

We have isel patterns to use a vpmovzxwd+vpdmovdb for the truncate,
but we aren't able to simultaneously fold the load and the store
from the isel pattern. By pulling the truncate into the store we
can successfully hide it from the DAG combiner. Then we can isel
pattern match the truncstore and load+any_extend separately.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364163 91177308-0d34-0410-b5e6-96231b3b80d8

2019-06-23 23:51:21 +00:00

..

AArch64

AArch64: Add support for reading pc using llvm.read_register.

2019-06-22 03:03:25 +00:00

AMDGPU

AMDGPU: Fix not using s33 for scratch wave offset in kernels

2019-06-21 20:04:02 +00:00

ARC

[lit] Delete empty lines at the end of lit.local.cfg NFC

2019-06-17 09:51:07 +00:00

ARM

[ARM GlobalISel] Tests for s64 G_ADD and G_SUB.

2019-06-20 22:00:07 +00:00

AVR

[lit] Delete empty lines at the end of lit.local.cfg NFC

2019-06-17 09:51:07 +00:00

BPF

[BPF] generate R_BPF_NONE relocation for BTF DataSec variables

2019-05-26 21:26:06 +00:00

Generic

Rename ExpandISelPseudo->FinalizeISel, delay register reservation

2019-06-19 00:25:39 +00:00

Hexagon

Rename ExpandISelPseudo->FinalizeISel, delay register reservation

2019-06-19 00:25:39 +00:00

Inputs

…

Lanai

[lit] Delete empty lines at the end of lit.local.cfg NFC

2019-06-17 09:51:07 +00:00

Mips

[MIPS GlobalISel] Select integer to floating point conversions

2019-06-20 09:05:02 +00:00

MIR

AMDGPU: Always use s33 for global scratch wave offset

2019-06-20 21:58:24 +00:00

MSP430

[lit] Delete empty lines at the end of lit.local.cfg NFC

2019-06-17 09:51:07 +00:00

NVPTX

SelectionDAG: accommodate atomic floating stores.

2019-05-10 11:23:04 +00:00

PowerPC

Rename ExpandISelPseudo->FinalizeISel, delay register reservation

2019-06-19 00:25:39 +00:00

RISCV

[RISCV] Add RISCV-specific TargetTransformInfo

2019-06-21 13:36:09 +00:00

SPARC

[lit] Delete empty lines at the end of lit.local.cfg NFC

2019-06-17 09:51:07 +00:00

SystemZ

[SystemZ] Support vector load/store alignment hints

2019-06-19 14:20:00 +00:00

Thumb

[lit] Delete empty lines at the end of lit.local.cfg NFC

2019-06-17 09:51:07 +00:00

Thumb2

[ARM] Comply with rules on ARMv8-A thumb mode partial deprecation of IT.

2019-06-18 20:55:09 +00:00

WebAssembly

[WebAssembly] Optimize ISel for SIMD Boolean reductions

2019-06-19 00:02:13 +00:00

WinCFGuard

[COFF] Emit @feat.00 on 64-bit and set the CFG bit when emitting guardcf tables

2018-09-19 09:58:30 +00:00

WinEH

[lit] Delete empty lines at the end of lit.local.cfg NFC

2019-06-17 09:51:07 +00:00

X86

[X86] Turn v16i16->v16i8 truncate+store into a any_extend+truncstore if we avx512f, but not avx512bw.

2019-06-23 23:51:21 +00:00

XCore

[lit] Delete empty lines at the end of lit.local.cfg NFC

2019-06-17 09:51:07 +00:00