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authorJames Zern <jzern@google.com>2017-11-02 11:20:09 -0700
committerJames Zern <jzern@google.com>2017-11-02 11:20:09 -0700
commit0d7614fddf8c72962764b3bf590006fa6b6506d1 (patch)
tree1b8de869ae5760a62ce9977a92698057e874dc44
parent88692490a5fbdf3ee4978db8112798d4a94226e6 (diff)
downloadlibwebp-portable-intrinsics.tar.gz
README.wasm: add instructions for enabling mulhiportable-intrinsics
Change-Id: I1e9dd737f06ad76f73824352291a6e129ca5ded1
-rw-r--r--README.wasm7
1 files changed, 7 insertions, 0 deletions
diff --git a/README.wasm b/README.wasm
index ca822f30..48636f49 100644
--- a/README.wasm
+++ b/README.wasm
@@ -26,6 +26,13 @@ Building:
- Note this currently generates native executables only and is incompatible
with -DWEBP_BUILD_WEBP_JS.
+Build options:
+==============
+
+- platform specific multiply high (mulhi) implementation, disabled by default.
+ arm: -DCMAKE_C_FLAGS='-DENABLE_NEON_BUILTIN_MULHI_INT16X8 ...'
+ x86: -DCMAKE_C_FLAGS='-DENABLE_X86_BUILTIN_MULHI_INT16X8 ...'
+
Cross compilation:
==================