Compile jsregexp.cpp with -O9 and -fomit-frame-pointer (456201, r=shaver).

js/src/Makefile.in

@@ -60,6 +60,8 @@ else
 MODULE_OPTIMIZE_FLAGS = -Os -fstrict-aliasing $(MOZ_OPTIMIZE_SIZE_TWEAK)
 # Special optimization flags for jsinterp.c
 INTERP_OPTIMIZER = -O3 -fstrict-aliasing
+BUILTINS_OPTIMIZER = -O9 -fstrict-aliasing
+REGEXP_OPTIMIZER = -O9 -fstrict-aliasing -fomit-frame-pointer
 endif
 else
 ifeq ($(OS_ARCH),SunOS)
@@ -449,11 +451,19 @@ endif
 endif
 endif
 
-# Allow building jsinterp.c with special optimization flags
+# Allow building jsinterp.c and a few others with special optimization flags
 ifdef INTERP_OPTIMIZER
 jsinterp.$(OBJ_SUFFIX): MODULE_OPTIMIZE_FLAGS=$(INTERP_OPTIMIZER)
 endif
 
+ifdef BUILTINS_OPTIMIZER
+jsbuiltins.$(OBJ_SUFFIX): MODULE_OPTIMIZE_FLAGS=$(BUILTINS_OPTIMIZER)
+endif
+
+ifdef REGEXP_OPTIMIZER
+jsregexp.$(OBJ_SUFFIX): MODULE_OPTIMIZE_FLAGS=$(REGEXP_OPTIMIZER)
+endif
+
 ifeq ($(OS_ARCH),IRIX)
 ifndef GNU_CC
 _COMPILE_CFLAGS  = $(patsubst -O%,-O1,$(COMPILE_CFLAGS))

js/src/Makefile.ref

@@ -106,6 +106,7 @@ endif
 #CFLAGS += -DDEBUG -DDEBUG_brendan -DJS_ARENAMETER -DJS_HASHMETER -DJS_DUMP_PROPTREE_STATS -DJS_DUMP_SCOPE_METERS -DJS_SCOPE_DEPTH_METER -DJS_BASIC_STATS
 CFLAGS          += $(OPTIMIZER) $(OS_CFLAGS) $(DEFINES) $(INCLUDES) $(XCFLAGS)
 INTERP_CFLAGS   += $(INTERP_OPTIMIZER) $(OS_CFLAGS) $(DEFINES) $(INCLUDES) $(XCFLAGS) $(INTERP_XCFLAGS)
+REGEXP_CFLAGS   += $(REGEXP_OPTIMIZER) $(OS_CFLAGS) $(DEFINES) $(INCLUDES) $(XCFLAGS) $(REGEXP_XCFLAGS)
 BUILTINS_CFLAGS += $(BUILTINS_OPTIMIZER) $(OS_CFLAGS) $(DEFINES) $(INCLUDES) $(XCFLAGS) $(BUILTINS_XCFLAGS)
 
 LDFLAGS		= $(XLDFLAGS)

js/src/config.mk

@@ -124,12 +124,14 @@ ifdef BUILD_OPT
 ifdef USE_MSVC
 OPTIMIZER  = -O2 -GL
 INTERP_OPTIMIZER = -O2 -GL
+REGEXP_OPTIMIZER = -O2 -GL
 BUILTINS_OPTIMIZER = -O2 -GL
 LDFLAGS    += -LTCG
 else
 OPTIMIZER  = -Os -fno-exceptions -fno-rtti -fstrict-aliasing -Wall -Wstrict-aliasing=2
-BUILTINS_OPTIMIZER = -O9 -fstrict-aliasing -fno-exceptions -fno-rtti
 INTERP_OPTIMIZER = -O3 -fstrict-aliasing -fno-exceptions -fno-rtti
+REGEXP_OPTIMIZER = -O9 -fomit-frame-pointer -fstrict-aliasing -fno-exceptions -fno-rtti
+BUILTINS_OPTIMIZER = -O9 -fstrict-aliasing -fno-exceptions -fno-rtti
 endif
 DEFINES    += -UDEBUG -DNDEBUG -UDEBUG_$(USER)
 OBJDIR_TAG = _OPT

js/src/rules.mk

@@ -81,6 +81,10 @@ $(OBJDIR)/jsinterp.o: jsinterp.cpp jsinterp.h
 	@$(MAKE_OBJDIR)
 	$(CXX) -o $@ -c $(INTERP_CFLAGS) jsinterp.cpp
 
+$(OBJDIR)/jsregexp.o: jsregexp.cpp jsregexp.h
+	@$(MAKE_OBJDIR)
+	$(CXX) -o $@ -c $(REGEXP_CFLAGS) jsregexp.cpp
+
 $(OBJDIR)/jsbuiltins.o: jsbuiltins.cpp jsinterp.h
 	@$(MAKE_OBJDIR)
 	$(CXX) -o $@ -c $(BUILTINS_CFLAGS) jsbuiltins.cpp
@@ -102,6 +106,10 @@ $(OBJDIR)/jsinterp.obj: jsinterp.cpp jsinterp.h
 	@$(MAKE_OBJDIR)
 	$(CXX) -Fo$(OBJDIR)/ -c $(INTERP_CFLAGS) $(JSDLL_CFLAGS) jsinterp.cpp
 
+$(OBJDIR)/jsregexp.obj: jsregexp.cpp jsregexp.h
+	@$(MAKE_OBJDIR)
+	$(CXX) -Fo$(OBJDIR)/ -c $(REGEXP_CFLAGS) $(JSDLL_CFLAGS) jsregexp.cpp
+
 $(OBJDIR)/jsbuiltins.obj: jsbuiltins.cpp jsinterp.h
 	@$(MAKE_OBJDIR)
 	$(CXX) -Fo$(OBJDIR)/ -c $(BUILTINS_CFLAGS) $(JSDLL_CFLAGS) jsbuiltins.c