Messages in this thread Patch in this message | | | Date | Tue, 21 Feb 2006 11:30:28 +0900 (JST) | Subject | [PATCH 2.6.16-rc3] m32r: enable asm code optimization | From | Hirokazu Takata <> |
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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> ---
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@linux-m32r.org> Linux/M32R Project: http://www.linux-m32r.org/
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