Remove the unnecessary generic-neon code.
Change-Id: Ib75c33caafd76750ec1aca3a74dec5e4b881e965
diff --git a/libc/arch-arm64/arm64.mk b/libc/arch-arm64/arm64.mk
index 0dd3c27..cdb2777 100644
--- a/libc/arch-arm64/arm64.mk
+++ b/libc/arch-arm64/arm64.mk
@@ -59,7 +59,7 @@
endif
cpu_variant_mk := $(LOCAL_PATH)/arch-arm64/$(TARGET_CPU_VARIANT)/$(TARGET_CPU_VARIANT).mk
ifeq ($(wildcard $(cpu_variant_mk)),)
-$(error "TARGET_CPU_VARIANT not set or set to an unknown value. Possible values are generic, generic-neon, denver64. Use generic for devices that do not have a CPU similar to any of the supported cpu variants.")
+$(error "TARGET_CPU_VARIANT not set or set to an unknown value. Possible values are generic, denver64. Use generic for devices that do not have a CPU similar to any of the supported cpu variants.")
endif
include $(cpu_variant_mk)
libc_common_additional_dependencies += $(cpu_variank_mk)
diff --git a/libc/arch-arm64/generic-neon/bionic/memcpy.S b/libc/arch-arm64/generic-neon/bionic/memcpy.S
deleted file mode 100644
index 320f748..0000000
--- a/libc/arch-arm64/generic-neon/bionic/memcpy.S
+++ /dev/null
@@ -1,179 +0,0 @@
-/* Copyright (c) 2012, Linaro Limited
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- * Neither the name of the Linaro nor the
- names of its contributors may be used to endorse or promote products
- derived from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-/* Assumptions:
- *
- * ARMv8-a, AArch64
- * Unaligned accesses
- *
- */
-
-#include <private/bionic_asm.h>
-
-#define dstin x0
-#define src x1
-#define count x2
-#define tmp1 x3
-#define tmp1w w3
-#define tmp2 x4
-#define tmp2w w4
-#define tmp3 x5
-#define tmp3w w5
-#define dst x6
-
-#define A_l x7
-#define A_h x8
-#define B_l x9
-#define B_h x10
-#define C_l x11
-#define C_h x12
-#define D_l x13
-#define D_h x14
-
-#define QA_l q0
-#define QA_h q1
-#define QB_l q2
-#define QB_h q3
-
-ENTRY(memcpy)
-
- mov dst, dstin
- cmp count, #64
- b.ge .Lcpy_not_short
- cmp count, #15
- b.le .Ltail15tiny
-
- /* Deal with small copies quickly by dropping straight into the
- * exit block. */
-.Ltail63:
- /* Copy up to 48 bytes of data. At this point we only need the
- * bottom 6 bits of count to be accurate. */
- ands tmp1, count, #0x30
- b.eq .Ltail15
- add dst, dst, tmp1
- add src, src, tmp1
- cmp tmp1w, #0x20
- b.eq 1f
- b.lt 2f
- ldp A_l, A_h, [src, #-48]
- stp A_l, A_h, [dst, #-48]
-1:
- ldp A_l, A_h, [src, #-32]
- stp A_l, A_h, [dst, #-32]
-2:
- ldp A_l, A_h, [src, #-16]
- stp A_l, A_h, [dst, #-16]
-
-.Ltail15:
- ands count, count, #15
- beq 1f
- add src, src, count
- ldp A_l, A_h, [src, #-16]
- add dst, dst, count
- stp A_l, A_h, [dst, #-16]
-1:
- ret
-
-.Ltail15tiny:
- /* Copy up to 15 bytes of data. Does not assume additional data
- being copied. */
- tbz count, #3, 1f
- ldr tmp1, [src], #8
- str tmp1, [dst], #8
-1:
- tbz count, #2, 1f
- ldr tmp1w, [src], #4
- str tmp1w, [dst], #4
-1:
- tbz count, #1, 1f
- ldrh tmp1w, [src], #2
- strh tmp1w, [dst], #2
-1:
- tbz count, #0, 1f
- ldrb tmp1w, [src]
- strb tmp1w, [dst]
-1:
- ret
-
-.Lcpy_not_short:
- /* We don't much care about the alignment of DST, but we want SRC
- * to be 128-bit (16 byte) aligned so that we don't cross cache line
- * boundaries on both loads and stores. */
- neg tmp2, src
- ands tmp2, tmp2, #15 /* Bytes to reach alignment. */
- b.eq 2f
- sub count, count, tmp2
- /* Copy more data than needed; it's faster than jumping
- * around copying sub-Quadword quantities. We know that
- * it can't overrun. */
- ldp A_l, A_h, [src]
- add src, src, tmp2
- stp A_l, A_h, [dst]
- add dst, dst, tmp2
- /* There may be less than 63 bytes to go now. */
- cmp count, #63
- b.le .Ltail63
-2:
- subs count, count, #128
- b.ge .Lcpy_body_large
- /* Less than 128 bytes to copy, so handle 64 here and then jump
- * to the tail. */
- ldp QA_l, QA_h, [src]
- ldp QB_l, QB_h, [src, #32]
- stp QA_l, QA_h, [dst]
- stp QB_l, QB_h, [dst, #32]
- tst count, #0x3f
- add src, src, #64
- add dst, dst, #64
- b.ne .Ltail63
- ret
-
- /* Critical loop. Start at a new cache line boundary. Assuming
- * 64 bytes per line this ensures the entire loop is in one line. */
- .p2align 6
-.Lcpy_body_large:
- /* There are at least 128 bytes to copy. */
- ldp QA_l, QA_h, [src, #0]
- sub dst, dst, #32 /* Pre-bias. */
- ldp QB_l, QB_h, [src, #32]! /* src += 64 - Pre-bias. */
-1:
- stp QA_l, QA_h, [dst, #32]
- ldp QA_l, QA_h, [src, #32]
- stp QB_l, QB_h, [dst, #64]!
- ldp QB_l, QB_h, [src, #64]!
-
- subs count, count, #64
- b.ge 1b
-
- stp QA_l, QA_h, [dst, #32]
- stp QB_l, QB_h, [dst, #64]
- add src, src, #32
- add dst, dst, #64 + 32
- tst count, #0x3f
- b.ne .Ltail63
- ret
-END(memcpy)
diff --git a/libc/arch-arm64/generic-neon/generic-neon.mk b/libc/arch-arm64/generic-neon/generic-neon.mk
deleted file mode 100644
index 77e3861..0000000
--- a/libc/arch-arm64/generic-neon/generic-neon.mk
+++ /dev/null
@@ -1,13 +0,0 @@
-libc_bionic_src_files_arm64 += \
- arch-arm64/generic/bionic/memchr.S \
- arch-arm64/generic/bionic/memcmp.S \
- arch-arm64/generic/bionic/memmove.S \
- arch-arm64/generic/bionic/memset.S \
- arch-arm64/generic/bionic/stpcpy.S \
- arch-arm64/generic/bionic/strchr.S \
- arch-arm64/generic/bionic/strcmp.S \
- arch-arm64/generic/bionic/strcpy.S \
- arch-arm64/generic/bionic/strlen.S \
- arch-arm64/generic/bionic/strncmp.S \
- arch-arm64/generic/bionic/strnlen.S \
- arch-arm64/generic-neon/bionic/memcpy.S \
