Enable dead code elimination on Linux

calamity-inc · Nov 26, 2024 · ce0b2a8 · ce0b2a8
1 parent 2ec55d9
commit ce0b2a8
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/build_common.php b/build_common.php
@@ -14,7 +14,7 @@
 $clanglink = $clang;
 if (!defined("PHP_WINDOWS_VERSION_MAJOR"))
 {
-	$clanglink .= " -lstdc++ -pthread -lm -ldl";
+	$clanglink .= " -Wl,--gc-sections,--icf=safe -lstdc++ -pthread -lm -ldl";
 	if (!getenv("ANDROID_ROOT"))
 	{
 		$clanglink .= " -lresolv";

diff --git a/soup/Compiler.cpp b/soup/Compiler.cpp
@@ -35,7 +35,7 @@ NAMESPACE_SOUP
 #if SOUP_WINDOWS
 			"-D_CRT_SECURE_NO_WARNINGS",
 #endif
-			"-ffunction-sections", "-fdata-sections", // needed for dead code elimination
+			"-ffunction-sections", "-fdata-sections", // dead code elimination
 			"-std="
 		};
 		args.back().append(lang);
@@ -69,6 +69,7 @@ NAMESPACE_SOUP
 #else
 #if !SOUP_MACOS
 		args.emplace_back("-fuse-ld=lld");
+		args.emplace_back("-Wl,--gc-sections,--icf=safe"); // dead code elimination
 #endif
 		args.emplace_back("-lstdc++");
 		if (!isEmscripten())