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Subject[PATCH 2/2] lib/raid6: refactor unroll rules with pattern rules
Date
This Makefile repeats very similar rules.

Let's use pattern rules. $(UNROLL) can be replaced with $*.

No intended change in behavior.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

lib/raid6/Makefile | 97 ++++++----------------------------------------
1 file changed, 11 insertions(+), 86 deletions(-)

diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index 74004037033f..42695bc8d451 100644
--- a/lib/raid6/Makefile
+++ b/lib/raid6/Makefile
@@ -12,9 +12,6 @@ raid6_pq-$(CONFIG_S390) += s390vx8.o recov_s390xc.o

hostprogs-y += mktables

-quiet_cmd_unroll = UNROLL $@
- cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$(UNROLL) < $< > $@
-
ifeq ($(CONFIG_ALTIVEC),y)
altivec_flags := -maltivec $(call cc-option,-mabi=altivec)

@@ -50,111 +47,39 @@ CFLAGS_REMOVE_neon8.o += -mgeneral-regs-only
endif
endif

-targets += int1.c
-$(obj)/int1.c: UNROLL := 1
-$(obj)/int1.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
-targets += int2.c
-$(obj)/int2.c: UNROLL := 2
-$(obj)/int2.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
-targets += int4.c
-$(obj)/int4.c: UNROLL := 4
-$(obj)/int4.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
-targets += int8.c
-$(obj)/int8.c: UNROLL := 8
-$(obj)/int8.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
-targets += int16.c
-$(obj)/int16.c: UNROLL := 16
-$(obj)/int16.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
+quiet_cmd_unroll = UNROLL $@
+ cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$* < $< > $@

-targets += int32.c
-$(obj)/int32.c: UNROLL := 32
-$(obj)/int32.c: $(src)/int.uc $(src)/unroll.awk FORCE
+targets += int1.c int2.c int4.c int8.c int16.c int32.c
+$(obj)/int%.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)

CFLAGS_altivec1.o += $(altivec_flags)
-targets += altivec1.c
-$(obj)/altivec1.c: UNROLL := 1
-$(obj)/altivec1.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_altivec2.o += $(altivec_flags)
-targets += altivec2.c
-$(obj)/altivec2.c: UNROLL := 2
-$(obj)/altivec2.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_altivec4.o += $(altivec_flags)
-targets += altivec4.c
-$(obj)/altivec4.c: UNROLL := 4
-$(obj)/altivec4.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_altivec8.o += $(altivec_flags)
-targets += altivec8.c
-$(obj)/altivec8.c: UNROLL := 8
-$(obj)/altivec8.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
+targets += altivec1.c altivec2.c altivec4.c altivec8.c
+$(obj)/altivec%.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)

CFLAGS_vpermxor1.o += $(altivec_flags)
-targets += vpermxor1.c
-$(obj)/vpermxor1.c: UNROLL := 1
-$(obj)/vpermxor1.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_vpermxor2.o += $(altivec_flags)
-targets += vpermxor2.c
-$(obj)/vpermxor2.c: UNROLL := 2
-$(obj)/vpermxor2.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_vpermxor4.o += $(altivec_flags)
-targets += vpermxor4.c
-$(obj)/vpermxor4.c: UNROLL := 4
-$(obj)/vpermxor4.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_vpermxor8.o += $(altivec_flags)
-targets += vpermxor8.c
-$(obj)/vpermxor8.c: UNROLL := 8
-$(obj)/vpermxor8.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
+targets += vpermxor1.o vpermxor2.o vpermxor4.o vpermxor8.o
+$(obj)/vpermxor%.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)

CFLAGS_neon1.o += $(NEON_FLAGS)
-targets += neon1.c
-$(obj)/neon1.c: UNROLL := 1
-$(obj)/neon1.c: $(src)/neon.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_neon2.o += $(NEON_FLAGS)
-targets += neon2.c
-$(obj)/neon2.c: UNROLL := 2
-$(obj)/neon2.c: $(src)/neon.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_neon4.o += $(NEON_FLAGS)
-targets += neon4.c
-$(obj)/neon4.c: UNROLL := 4
-$(obj)/neon4.c: $(src)/neon.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_neon8.o += $(NEON_FLAGS)
-targets += neon8.c
-$(obj)/neon8.c: UNROLL := 8
-$(obj)/neon8.c: $(src)/neon.uc $(src)/unroll.awk FORCE
+targets += neon1.c neon2.c neon4.c neon8.c
+$(obj)/neon%.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)

targets += s390vx8.c
-$(obj)/s390vx8.c: UNROLL := 8
-$(obj)/s390vx8.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE
+$(obj)/s390vx%.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)

quiet_cmd_mktable = TABLE $@
--
2.17.1
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