Craig Topper e74f5c63dc [X86] When lowering v32i8 MULHS/MULHU, shuffle after the PACKUS rather than before. ...

We're using a 256-bit PACKUS to do the truncation, but that instruction operates on 128-bit lanes. So previously we shuffled first to rearrange the lanes. But that requires 2 shuffles. Instead we can shuffle after the PACKUS using a single VPERMQ. This matches what our normal LowerTRUNCATE code does when it uses PACKUS.

Differential Revision: https://reviews.llvm.org/D51284

llvm-svn: 340757

2018-08-27 17:20:41 +00:00

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Analysis

[X86] Correct the cost of (v4i32 (fptoui (v4f64))) under AVX512F.

2018-08-26 18:47:44 +00:00

Assembler

[MC, RISCV] Fixed StringRef Assertion `Index < Length && "Invalid index!"'

2018-08-25 01:34:32 +00:00

Bindings

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Bitcode

Allow creating llvm::Function in non-zero address spaces

2018-08-23 09:25:17 +00:00

BugPoint

[lit, python] Always add quotes around the python path in lit

2018-08-06 22:37:44 +00:00

CodeGen

[X86] When lowering v32i8 MULHS/MULHU, shuffle after the PACKUS rather than before.

2018-08-27 17:20:41 +00:00

DebugInfo

DebugInfo: Fix skipping CUs in DWARFv5 debug_names table

2018-08-24 20:31:05 +00:00

Demangle

[MS Demangler] Re-write the Microsoft demangler.

2018-08-27 03:48:03 +00:00

Examples

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ExecutionEngine

[CMake] Use normalized Windows target triples

2018-08-09 02:16:18 +00:00

Feature

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FileCheck

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Instrumentation

Fix global_metadata_external_comdat.ll test

2018-08-21 00:03:21 +00:00

Integer

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JitListener

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Linker

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LTO

Enrich inline messages

2018-08-05 14:53:08 +00:00

MC

[WebAssembly] Added default stack-only instruction mode for MC.

2018-08-27 15:45:51 +00:00

Object

[WASM] Fix overflow when reading custom section

2018-08-08 16:34:03 +00:00

ObjectYAML

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Other

Recommit r333268: [IPSCCP] Use PredicateInfo to propagate facts from cmp instructions.

2018-08-23 11:04:00 +00:00

SafepointIRVerifier

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SymbolRewriter

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TableGen

[lit, python] Always add quotes around the python path in lit

2018-08-06 22:37:44 +00:00

ThinLTO/X86

[lit, python] Remove quotes around %python in cache.ll

2018-08-27 16:33:13 +00:00

tools

[llvm-mca] Improved report generated by the SchedulerStatistics view.

2018-08-27 14:52:52 +00:00

Transforms

[AMDGPU] Add support for multi-dword s.buffer.load intrinsic

2018-08-25 14:53:17 +00:00

Unit

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Verifier

Verifier: verify that a DILocation's scope is a DILocalScope.

2018-08-24 21:01:58 +00:00

YAMLParser

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.clang-format

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CMakeLists.txt

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lit.cfg.py

[CMake] Use normalized Windows target triples

2018-08-09 02:16:18 +00:00

lit.site.cfg.py.in

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TestRunner.sh

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