Craig Topper 970c41dd6c [X86] Allow pack instructions to be used for 512->256 truncates when -mprefer-vector-width=256 is causing 512-bit vectors to be split ...

If we're splitting the 512-bit vector anyway and we have zero/sign bits, then we might as well use pack instructions to concat and truncate at once.

Differential Revision: https://reviews.llvm.org/D65904

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368210 91177308-0d34-0410-b5e6-96231b3b80d8

2019-08-07 21:16:10 +00:00

..

AArch64

[AArch64][WinCFI] Do not pair callee-save instructions in LoadStoreOptimizer

2019-08-07 12:41:38 +00:00

AMDGPU

[StructurizeCFG] Enable -structurizecfg-relaxed-uniform-regions by default

2019-08-06 14:30:19 +00:00

ARC

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

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

ARM

Reland: Fix and test inter-procedural register allocation for ARM

2019-08-05 09:04:10 +00:00

AVR

[AVR] Fix tests after r363757

2019-07-04 06:12:47 +00:00

BPF

[Transforms] Do not drop !preserve.access.index metadata

2019-08-03 23:41:26 +00:00

Generic

Revert "r364412 [ExpandMemCmp][MergeICmps] Move passes out of CodeGen into opt pipeline."

2019-06-26 12:13:13 +00:00

Hexagon

[Hexagon] Custom-lower UADDO(x, 1) and USUBO(x, 1)

2019-07-01 15:50:09 +00:00

Inputs

[CodeGen] Add stack protector tests where the guard gets re-assigned

2019-07-17 20:46:16 +00:00

Lanai

[SDAG] commute setcc operands to match a subtract

2019-07-10 23:23:54 +00:00

Mips

[MIPS GlobalISel] Fold load/store + G_GEP + G_CONSTANT

2019-08-01 09:40:13 +00:00

MIR

[PowerPC][Peephole] Check if extsw's second operand is a virtual register

2019-08-02 03:14:17 +00:00

MSP430

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

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

NVPTX

[NVPTX] Fix PR41651

2019-07-30 19:52:01 +00:00

PowerPC

[Strict FP] Allow custom operation actions

2019-08-06 10:43:13 +00:00

RISCV

[RISCV] Custom legalize i32 operations for RV64 to reduce signed extensions

2019-08-06 00:24:00 +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] Regenerate <8 x i31> store test

2019-07-29 09:49:23 +00:00

Thumb

[Thumb] Fix invalid symbol redefinition due to duplicated jumptable (PR42760)

2019-08-03 06:47:23 +00:00

Thumb2

[ARM] Expand CTPOP intrinsic for MVE

2019-08-07 15:47:45 +00:00

WebAssembly

[WebAssembly] Fix conflict between ret legalization and sjlj

2019-08-05 21:36:09 +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

IR: print value numbers for unnamed function arguments

2019-08-03 14:28:34 +00:00

X86

[X86] Allow pack instructions to be used for 512->256 truncates when -mprefer-vector-width=256 is causing 512-bit vectors to be split

2019-08-07 21:16:10 +00:00

XCore

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

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