swift-mirror/stdlib/public/SDK/simd/CMakeLists.txt at c712ce3b5e68e01b3cf62f35a44b932b07259b12 - swift-mirror - Gitea: Git with a cup of tea

averello/swift-mirror

mirror of https://github.com/apple/swift.git synced 2025-12-21 12:14:44 +01:00

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Joe Groff 0b54e21629 simd overlay: Use LLVM vector types.

This brings the David Owens benchmark from http://owensd.io/2015/06/27/performance-xcode7-beta-2.html from parity with simd.h-based C to 3x faster.

Before:

RenderGradient ([UInt32].withUnsafeMutablePointer (SIMD))                 │ 7.035851 │ 6.304739 │ 9.815832 │  1.212 │

After:

RenderGradient ([UInt32].withUnsafeMutablePointer (SIMD))                 │ 2.318357 │ 2.223325 │ 2.697981 │ 0.1490 │

This also addresses rdar://problem/21574425, since Builtin.add_VecNxIntM isn't overflow-checked, and overflow checks really aren't wanted when working with vector types directly.

Reapplying now that Nadav's fixed the ARM64 SelectionDAG issue this exposed before, and Arnold's fixed
yet another SelectionDAG issue exposed after that.

Swift SVN r30006

2015-07-09 01:20:01 +00:00

6 lines

169 B

CMake

Raw Blame History

 add_swift_library(swiftsimd IS_SDK_OVERLAY
   simd.swift.gyb
   SWIFT_COMPILE_FLAGS -Xfrontend -sil-serialize-all -Xfrontend -parse-stdlib
   SWIFT_MODULE_DEPENDS Darwin)