third_party/zlib/README.chromium - Issue 671163003: Revert of Integrate SIMD optimisations for zlib

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Unified Diff: third_party/zlib/README.chromium

Issue 671163003: Revert of Integrate SIMD optimisations for zlib (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 6 years, 2 months ago

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Index: third_party/zlib/README.chromium

diff --git a/third_party/zlib/README.chromium b/third_party/zlib/README.chromium

index b90bcff42fb7d37bb8bad52239901523a7e1775a..c9e06bae394c4334af5ac0874a6f2ebd467271e4 100644

--- a/third_party/zlib/README.chromium

+++ b/third_party/zlib/README.chromium

@@ -19,19 +19,3 @@

A more significant change to support mixed-source data compression. See

crbug.com/139744 and mixed-source.patch.

-Integrated Intel SIMD optimisations from: https://github.com/jtkukunas/zlib/

-and modified to accomodate the older version and existing changes in tree.

-This introduces new files: simd_stub.c, crc_folding.c, fill_window_sse.c and

-x86.[ch]. All but the latter are built into a static library to allow the

-compiler to use the desired instructions only when valid. The latter version is

-only built on x86 (32-bit and 64-bit) systems with it's functionality stubbed

-on the others.

-Other changes to accomodate:

-- fill_window() implementation calls into _sse() variant when supported and the

- original implementation renamed to _c()

-- read_buf was moved from local to ZLIB_INTERNAL for fill_window_sse.c to use

-- INSERT_STRING macro was made a function, insert_string() and an implementation using CRC instruction added

-- some crc funcionality moved into crc32.c

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