Simon Pilgrim fc9fa6d514 Revert rL356864 : [X86][SSE41] Start shuffle combining from ZERO_EXTEND_VECTOR_INREG (PR40685) ...

Enable SSE41 ZERO_EXTEND_VECTOR_INREG shuffle combines - for the PMOVZX(PSHUFD(V)) -> UNPCKH(V,0) pattern we reduce the shuffles (port5-bottleneck on Intel) at the expense of creating a zero (pxor v,v) and an extra register move - which is a good trade off as these are pretty cheap and in most cases it doesn't increase register pressure.

This also exposed a missed opportunity to use combine to ZERO_EXTEND_VECTOR_INREG with folded loads - even if we're in the float domain.
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Causes PR41249

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357057 91177308-0d34-0410-b5e6-96231b3b80d8

2019-03-27 10:25:02 +00:00

..

AArch64

[DAG] Avoid smart constructor-based dangling nodes.

2019-03-26 15:08:14 +00:00

AMDGPU

AMDGPU: Make collapse-endcf test more useful

2019-03-25 21:28:51 +00:00

ARC

[ARC] Add ARCOptAddrMode pass to generate postincrement loads/stores.

2019-03-20 20:06:21 +00:00

ARM

[DAG] Avoid smart constructor-based dangling nodes.

2019-03-26 15:08:14 +00:00

AVR

[DAGCombiner] If a TokenFactor would be merged into its user, consider the user later.

2019-03-13 17:07:09 +00:00

BPF

[BPF] fix flaky btf unit test static-var-derived-type.ll

2019-03-22 02:54:47 +00:00

Generic

Fix nondeterminism introduced in r353954

2019-03-26 12:18:08 +00:00

Hexagon

Add more rotate tests, including ORs of rotates

2019-03-21 17:14:22 +00:00

Inputs

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Lanai

…

Mips

[DAG] Avoid smart constructor-based dangling nodes.

2019-03-26 15:08:14 +00:00

MIR

MIR: Allow targets to serialize MachineFunctionInfo

2019-03-14 22:54:43 +00:00

MSP430

[DAGCombiner] If a TokenFactor would be merged into its user, consider the user later.

2019-03-13 17:07:09 +00:00

NVPTX

[Codegen] fix typos in test case

2019-03-02 08:03:59 +00:00

PowerPC

[PowerPC] Remove UseVSXReg

2019-03-26 20:28:21 +00:00

RISCV

[RISCV] Update setcc-logic.ll codegen test

2019-03-26 15:41:45 +00:00

SPARC

[SelectionDAG] Add icmp UNDEF handling to SelectionDAG::FoldSetCC

2019-03-25 18:51:57 +00:00

SystemZ

[DAGCombiner] Don't allow addcarry if the carry producer is illegal.

2019-03-27 08:41:46 +00:00

Thumb

[Thumb] Fix infinite loop in ABS expansion (PR41160)

2019-03-21 12:41:18 +00:00

Thumb2

[ARM] Add missing memory operands to a bunch of instructions.

2019-03-25 22:42:30 +00:00

WebAssembly

[WebAssembly] Initial implementation of PIC code generation

2019-03-26 19:46:15 +00:00

WinCFGuard

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WinEH

Fix invalid target triples in tests. (NFC)

2019-03-04 23:37:41 +00:00

X86

Revert rL356864 : [X86][SSE41] Start shuffle combining from ZERO_EXTEND_VECTOR_INREG (PR40685)

2019-03-27 10:25:02 +00:00

XCore

[DAGCombiner] If a TokenFactor would be merged into its user, consider the user later.

2019-03-13 17:07:09 +00:00