[PATCH 2.6.16-rc3] m32r: enable asm code optimization

[Hirokazu Takata]

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@xxxxxxxxxxxxxx>
---

 arch/m32r/kernel/sys_m32r.c |   61 ++++++++++++++++++++++++--------------------
 1 file changed, 34 insertions(+), 27 deletions(-)

 arch/m32r/Makefile |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Index: b/arch/m32r/Makefile
===================================================================
--- b.orig/arch/m32r/Makefile	2005-11-03 17:16:58.483118728 +0900
+++ b/arch/m32r/Makefile	2005-11-03 18:17:20.683460576 +0900
@@ -12,14 +12,14 @@ CFLAGS_MODULE += -mmodel=large
 
 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)

--
Hirokazu Takata <takata@xxxxxxxxxxxxxx>
Linux/M32R Project:  http://www.linux-m32r.org/

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