-C opt-level=3 makes a huge difference here.

Spotted by @sw17ch, thank you.
katef · Aug 24, 2024 · e7a21b4 · e7a21b4
1 parent 60baaab
commit e7a21b4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/retest/runner.c b/src/retest/runner.c
@@ -158,7 +158,7 @@ compile(enum implementation impl,
 		break;
 
 	case IMPL_RUST:
-		if (0 != systemf("%s %s --crate-type dylib %s -o %s",
+		if (0 != systemf("%s %s -C opt-level=3 --crate-type dylib %s -o %s",
 				"rustc", "--edition 2021",
 				tmp_src, tmp_so))
 		{