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builder: add strlen to wasm builtins

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LLVM 22 can replace string-scanning loops with calls to strlen during
optimization. Add the implementation to wasmbuiltins and invalidate
cached archives.

Add an optimized wasm-unknown smoke test that exercises the reflect
name-decoding path which exposed the missing symbol.
This commit is contained in:
Jake Bailey
2026-08-29 23:45:30 -07:00
committed by Ron Evans
parent 61c315cbfb
commit fc0673430d
4 changed files with 24 additions and 7 deletions
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make/smoketest.mk
+4 -3
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@@ -573,9 +573,10 @@ smoketest-riscv: | build/smoke
smoketest-wasm: SMOKE_OUT = build/smoke/wasm
smoketest-wasm: | build/smoke
ifneq ($(WASM), 0)
$(TINYGO) build -size short -o $(SMOKE_OUT).wasm -target=wasm examples/wasm/export
$(TINYGO) build -size short -o $(SMOKE_OUT).wasm -target=wasm examples/wasm/main
$(TINYGO) build -size short -o $(SMOKE_OUT).wasm -target=wasm-unknown examples/hello-wasm-unknown
$(TINYGO) build -size short -o $(SMOKE_OUT).wasm -target=wasm examples/wasm/export
$(TINYGO) build -size short -o $(SMOKE_OUT).wasm -target=wasm examples/wasm/main
$(TINYGO) build -size short -o $(SMOKE_OUT).wasm -target=wasm-unknown examples/hello-wasm-unknown
$(TINYGO) build -size short -o $(SMOKE_OUT).wasm -target=wasm-unknown -opt=2 ./testdata/wasm-unknown-opt
endif
smoketest-flags: SMOKE_OUT = build/smoke/flags