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Commit 2cd77d67 authored by Yi Kong's avatar Yi Kong
Browse files

Enable MLGO inliner optimization for optimize_for_size cases 

This helps reduce binary size for these projects by ~3%.

Test: presubmit
Bug: 342090838
Change-Id: Ie1e0586ddf5f40aa1e81fc2628a6499093de9699
parent 5786f5cf

cc/compiler.go

+1 −0
Original line number Diff line number Diff line
@@ -695,6 +695,7 @@ func (compiler *baseCompiler) compilerFlags(ctx ModuleContext, flags Flags, deps 


	if ctx.optimizeForSize() {

		flags.Local.CFlags = append(flags.Local.CFlags, "-Oz")

		flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,-mllvm,-enable-ml-inliner=release")

	}



	// Exclude directories from manual binder interface allowed list.

cc/lto.go

+1 −1
Original line number Diff line number Diff line
@@ -144,7 +144,7 @@ func (lto *lto) flags(ctx ModuleContext, flags Flags) Flags { 


		if !ctx.Config().IsEnvFalse("THINLTO_USE_MLGO") {

			// Register allocation MLGO flags for ARM64.

			if ctx.Arch().ArchType == android.Arm64 {

			if ctx.Arch().ArchType == android.Arm64 && !ctx.optimizeForSize() {

				ltoLdFlags = append(ltoLdFlags, "-Wl,-mllvm,-regalloc-enable-advisor=release")

			}

			// Flags for training MLGO model.