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Use link-time optimization when compiling Opus code. #35

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Use link-time optimization when compiling Opus code. #35

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13c5852
Use link-time optimization when compiling Opus code.
JonathanLennox Jan 7, 2026
dfe8aab
Fix (parameterize) path to EMSDK in cache.
JonathanLennox Jan 8, 2026
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16 changes: 16 additions & 0 deletions .github/workflows/build.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -87,6 +87,22 @@ jobs:
echo "EM_CONFIG=$EM_CONFIG" >> $GITHUB_ENV
echo "$EMSDK:$EMSDK/upstream/emscripten" >> $GITHUB_PATH

- name: Cache emscripten build products
id: cache-emscripten
uses: actions/cache@v5
env:
cache-name: emscripten-cache
with:
path: ${{ env.EMSDK }}/upstream/emscripten/cache
key: ${{ runner.os }}-${{ env.cache-name }}-${{ inputs.emsdk_version }}

- if: ${{ steps.cache-emscripten.outputs.cache-hit }} == 'true'
name: Run emscripten sanity check after restoring cache
run: |
source "$EMSDK/emsdk_env.sh"
emcc --check
exit $?

- name: Build TS App
run: |
source "$EMSDK/emsdk_env.sh"
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9 changes: 6 additions & 3 deletions Makefile
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Expand Up @@ -47,8 +47,9 @@ opus-wasmlib: $(LIBOPUS_WASM_LIB)

# common EMCC options
define EMCC_OPTS
-O2 \
-O3 \
-msimd128 \
-flto \
--minify 0 \
-gsource-map \
-s WASM=1 \
Expand Down Expand Up @@ -109,9 +110,11 @@ $(LIBOPUS_WASM_LIB): $(LIBOPUS_BUILD)/Makefile

libopus-configure: $(LIBOPUS_BUILD)/Makefile

$(LIBOPUS_BUILD)/Makefile: $(LIBOPUS_SRC)/configure
$(LIBOPUS_BUILD)/Makefile: $(LIBOPUS_SRC)/configure
mkdir -p $(LIBOPUS_BUILD)
cd $(LIBOPUS_BUILD); CFLAGS="-O3 -msimd128" emconfigure $(CURDIR)/$(LIBOPUS_SRC)/configure \
cd $(LIBOPUS_BUILD); \
CFLAGS="-O3 -msimd128 -flto" \
emconfigure $(CURDIR)/$(LIBOPUS_SRC)/configure \
--host=wasm32-unknown-emscripten \
--enable-float-approx \
--disable-rtcd \
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