[PATCH] m32r: enable asm code optimization
Add -O2 option to AFLAGS to enable asm code optimization for m32r.
On m32r gas, "-m32r2 -O" option enables assembler's parallel code
generation optimization for M32R2 ISA as a default. So, "-no-parallel"
option is required explicitly for a cpu core with single instuction
issuing, for example, VDEC2.
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile
index 983d438..4b3c90b 100644
--- a/arch/m32r/Makefile
+++ b/arch/m32r/Makefile
@@ -12,14 +12,14 @@
ifdef CONFIG_CHIP_VDEC2
cflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -Wa,-bitinst
-aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -Wa,-bitinst
+aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -O2 -Wa,-bitinst -Wa,-no-parallel
else
cflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2
-aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2
+aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2 -O2
endif
cflags-$(CONFIG_ISA_M32R) += -DNO_FPU
-aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -Wa,-no-bitinst
+aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -O2 -Wa,-no-bitinst
CFLAGS += $(cflags-y)
AFLAGS += $(aflags-y)