[clang] [lld] [llvm] [WebAssembly] Cooperative threading for WASIP3 (PR #200855)

[Derek Schuff via cfe-commits]

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@@ -303,3 +303,10 @@
 // RUN:   | FileCheck -check-prefix=LINK_WALI_BASIC %s
 // LINK_WALI_BASIC: "-cc1" {{.*}} "-o" "[[temp:[^"]*]]"
 // LINK_WALI_BASIC: wasm-ld{{.*}}" "-L/foo/lib/wasm32-linux-muslwali" "crt1.o" "[[temp]]" "-lc" "{{.*[/\\]}}libclang_rt.builtins.a" "-o" "a.out"
+
+// Test that `wasm32-wasip3` passes `--cooperative-multithreading` to the linker.
+
+// RUN: %clang -### --target=wasm32-wasip3 -fuse-ld=lld %s --sysroot /foo 2>&1 \
+// RUN:   | FileCheck -check-prefix=LINK_WASIP3_COOP %s
+// LINK_WASIP3_COOP: wasm-ld{{.*}}" {{.*}} "--cooperative-multithreading"
+// LINK_WASIP3_COOP-NOT: "--libcall-thread-context"
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dschuff wrote:

I think this assertion isn't necessary if we are removing the flag from the linker; it should just result in an error, right?

https://github.com/llvm/llvm-project/pull/200855