[Scummvm-git-logs] scummvm master -> 63b709be9939bc7430809006d6ec780da5ca347f

[lephilousophe]

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Summary:
63b709be99 AMIGAOS: Use LTO, -O3 and dead code elimination by default (#4238)


Commit: 63b709be9939bc7430809006d6ec780da5ca347f
    https://github.com/scummvm/scummvm/commit/63b709be9939bc7430809006d6ec780da5ca347f
Author: Hubert Maier (raziel- at users.noreply.github.com)
Date: 2022-09-10T18:26:31+02:00

Commit Message:
AMIGAOS: Use LTO, -O3 and dead code elimination by default (#4238)

Changed paths:
    configure


diff --git a/configure b/configure
index 1f0da809ce3..e074761454c 100755
--- a/configure
+++ b/configure
@@ -2579,9 +2579,9 @@ case $_host_os in
 		_port_mk="backends/platform/sdl/amigaos/amigaos.mk"
 		add_line_to_config_mk 'AMIGAOS = 1'
 		append_var CXXFLAGS "-mlongcall"
-		# Enable optimizations for non-debug builds
+		# Enable full optimizations for non-debug builds
 		if test "$_debug_build" = no; then
-			_optimization_level=-O2
+			_optimization_level=-O3
 		else
 			_optimization_level=-O0
 			append_var CXXFLAGS "-fno-omit-frame-pointer"
@@ -6200,6 +6200,15 @@ case $_host_os in
 			append_var LDFLAGS "-Wl,--no-gc-sections"
 		fi
 		;;
+	amigaos*)
+		# In release mode use LTO to improve performance
+		# and dead code elimination to reduce binary size
+		if test "$_release_build" = yes; then
+			append_var CXXFLAGS "-flto"
+			append_var CXXFLAGS "-ffunction-sections -fdata-sections"
+			append_var PLUGIN_LDFLAGS "-flto=jobserver"
+		fi
+		;;
 	android)
 		# Force treating unqualified char variables as signed by default.
 		# NDK compiler for ARM will treat them as unsigned otherwise, which creates bugs in the code.