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b32df1b223
llvm-mirror/include/llvm
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Thomas Lively b32df1b223 [WebAssembly] Add avgr_u intrinsics and require nuw in patterns 
Summary:
The vector pattern `(a + b + 1) / 2` was previously selected to an
avgr_u instruction regardless of nuw flags, but this is incorrect in
the case where either addition may have an unsigned wrap. This CL
changes the existing pattern to require both adds to have nuw flags
and adds builtin functions and intrinsics for the avgr_u instructions
because the corrected pattern is not representable in C.

Reviewers: aheejin

Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D71648
2019-12-18 15:31:38 -08:00
..
ADT Revert "Temporarily Revert "[gicombiner] Add the MatchDag structure and parse instruction DAG's from the input"" 2019-12-18 11:37:12 +00:00
Analysis [NFC][TTI] Add Alignment for isLegalMasked[Gather/Scatter] 2019-12-18 09:14:39 +00:00
AsmParser
BinaryFormat [ObjC][DWARF] Emit DW_AT_APPLE_objc_direct for methods marked as __attribute__((objc_direct)) 2019-12-17 09:40:36 +01:00
Bitcode [LTO] Support for embedding bitcode section during LTO 2019-12-12 12:34:19 -08:00
Bitstream Remarks - fix static analyzer warnings. NFCI. 2019-11-09 13:01:05 +00:00
CodeGen [FPEnv] Strict versions of llvm.minimum/llvm.maximum 2019-12-18 21:35:28 +01:00
Config
DebugInfo Add lookup functions for efficient lookups of addresses when using GsymReader classes. 2019-12-05 16:49:53 -08:00
Demangle PODSmallVector - fix MSVC uninitialized variable warnings. NFCI. 2019-11-10 11:18:15 +00:00
ExecutionEngine Revert "[Orc][LLJIT] Use JITLink even if a custom JITTargetMachineBuilder is supplied." 2019-12-18 15:13:35 -08:00
Frontend/OpenMP [OpenMP] Introduce the OpenMP-IR-Builder 2019-12-11 14:38:49 -06:00
FuzzMutate
IR [WebAssembly] Add avgr_u intrinsics and require nuw in patterns 2019-12-18 15:31:38 -08:00
IRReader
LineEditor
Linker
LTO Fix modules build by adding missing includes to LTO/Config.h 2019-12-18 17:43:19 +01:00
MC [ MC ] Match labels to existing fragments even when switching sections. 2019-12-18 09:55:54 -08:00
MCA [MCA][LSUnit] Track loads and stores until retirement. 2019-10-08 10:46:01 +00:00
Object [WebAssembly] Add new export_name clang attribute for controlling wasm export names 2019-12-11 11:54:57 -08:00
ObjectYAML [yaml2obj] - Add a way to override sh_flags section field. 2019-12-13 11:54:37 +03:00
Option Let unaliased Args track which Alias they were created from, and use that in Arg::getAsString() for diagnostics 2019-07-09 00:34:08 +00:00
Passes Revert "Revert "As a follow-up to my initial mail to llvm-dev here's a first pass at the O1 described there."" 2019-11-26 20:28:52 -08:00
ProfileData [AutoFDO] Properly merge context-sensitive profile of inlinee back to outlined function 2019-12-05 15:57:55 -08:00
Remarks Remarks - fix static analyzer warnings. NFCI. 2019-11-09 13:01:05 +00:00
Support Fix more VFS tests on Windows 2019-12-18 11:38:04 -08:00
TableGen [TableGen] Add bang-operators !getop and !setop. 2019-12-11 12:05:22 +00:00
Target [FPEnv] Strict versions of llvm.minimum/llvm.maximum 2019-12-18 21:35:28 +01:00
Testing/Support
TextAPI Reland "[TextAPI] Introduce TBDv4" 2019-10-10 04:24:44 +00:00
ToolDrivers Share /machine: handling code with llvm-cvtres too 2019-06-12 11:32:43 +00:00
Transforms [InstCombine] Insert instructions before adding them to worklist 2019-12-18 14:55:41 -05:00
WindowsManifest
WindowsResource
XRay FDRRecords - fix uninitialized variable warnings. NFCI. 2019-11-07 18:42:02 +00:00
CMakeLists.txt
InitializePasses.h [BasicBlockUtils] Add utility to remove redundant dbg.value instrs 2019-12-16 11:41:21 +01:00
LinkAllIR.h
LinkAllPasses.h [BasicBlockUtils] Add utility to remove redundant dbg.value instrs 2019-12-16 11:41:21 +01:00
module.extern.modulemap
module.install.modulemap
module.modulemap Fix -Wincomplete-umbrella warning in the modules build 2019-12-10 11:19:17 -08:00
module.modulemap.build
Pass.h Sink all InitializePasses.h includes 2019-11-13 16:34:37 -08:00
PassAnalysisSupport.h
PassInfo.h
PassRegistry.h
PassSupport.h