Carl Ritson aff40a3f52 [AMDGPU] gfx1010 Avoid SMEM WAR hazard for some s_waitcnt values ...

Summary:
Avoid introducing hazard mitigation when lgkmcnt is reduced to 0.
Clarify code comments to explain assumptions made for this hazard
mitigation.  Expand and correct test cases to cover variants of
s_waitcnt.

Reviewers: nhaehnle, rampitec

Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62058

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@361124 91177308-0d34-0410-b5e6-96231b3b80d8

2019-05-20 07:20:12 +00:00

..

AArch64

[NFC][AArch64] Autogenerate fcopysign.ll test

2019-05-18 20:24:40 +00:00

AMDGPU

[AMDGPU] gfx1010 Avoid SMEM WAR hazard for some s_waitcnt values

2019-05-20 07:20:12 +00:00

ARC

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

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

ARM

[CodeGen] Add lround/llround builtins

2019-05-16 13:15:27 +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] emit BTF sections only if debuginfo available

2019-05-13 05:00:23 +00:00

Generic

Fix nondeterminism introduced in r353954

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

Hexagon

[llvm-readobj] Change -long-option to --long-option in tests. NFC

2019-05-01 05:27:20 +00:00

Inputs

…

Lanai

[AsmPrinter] refactor to support %c w/ GlobalAddress'

2019-04-26 18:45:04 +00:00

Mips

[CodeGen] Add lround/llround builtins

2019-05-16 13:15:27 +00:00

MIR

[AMDGPU] gfx1010 tests. NFC.

2019-05-13 19:30:06 +00:00

MSP430

[AsmPrinter] refactor to support %c w/ GlobalAddress'

2019-04-26 18:45:04 +00:00

NVPTX

SelectionDAG: accommodate atomic floating stores.

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

PowerPC

Re-land r360859: "[MergeICmps] Simplify the code."

2019-05-17 09:43:45 +00:00

RISCV

[RISCV][NFC] Add nounwind attribute to functions missing it in test/CodeGen/RISCV

2019-05-16 13:56:23 +00:00

SPARC

[IR] Disallow llvm.global_ctors and llvm.global_dtors of the 2-field form in textual format

2019-05-15 02:35:32 +00:00

SystemZ

[SystemZ] Bugfix in SystemZTargetLowering::combineIntDIVREM()

2019-05-17 00:50:35 +00:00

Thumb

[ARM] Add an extra constant hoisting test. NFC

2019-04-10 18:05:57 +00:00

Thumb2

[ARM] Don't use the Machine Scheduler for cortex-m at minsize

2019-05-15 12:58:02 +00:00

WebAssembly

[WebAssembly] Don't assume that zext/sext result is i32/i64 in fast isel (PR41841)

2019-05-13 19:40:18 +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

Fix invalid target triples in tests. (NFC)

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

X86

[X86][SSE] Fold movmsk(not(x)) -> not(movmsk)

2019-05-17 17:56:25 +00:00

XCore

[AsmPrinter] refactor to support %c w/ GlobalAddress'

2019-04-26 18:45:04 +00:00