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Enable MLGO inliner optimization for optimize_for_size cases

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

Test: presubmit
Bug: 342090838
Change-Id: Ie1e0586ddf5f40aa1e81fc2628a6499093de9699
This commit is contained in:
Yi Kong 2024-06-06 03:05:04 +09:00
parent 5786f5cf1d
commit 2cd77d671c
2 changed files with 2 additions and 1 deletions
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1
cc/compiler.go
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@ -695,6 +695,7 @@ func (compiler *baseCompiler) compilerFlags(ctx ModuleContext, flags Flags, deps
if ctx.optimizeForSize() { if ctx.optimizeForSize() {
flags.Local.CFlags = append(flags.Local.CFlags, "-Oz") 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. // Exclude directories from manual binder interface allowed list.

2
cc/lto.go
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@ -144,7 +144,7 @@ func (lto *lto) flags(ctx ModuleContext, flags Flags) Flags {
if !ctx.Config().IsEnvFalse("THINLTO_USE_MLGO") { if !ctx.Config().IsEnvFalse("THINLTO_USE_MLGO") {
// Register allocation MLGO flags for ARM64. // 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") ltoLdFlags = append(ltoLdFlags, "-Wl,-mllvm,-regalloc-enable-advisor=release")
} }
// Flags for training MLGO model. // Flags for training MLGO model.