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authorSiddhesh Poyarekar <siddhesh@sourceware.org>2018-02-02 10:15:20 +0530
committerSiddhesh Poyarekar <siddhesh@sourceware.org>2018-02-02 10:15:21 +0530
commit84c94d2fd90d84ae7e67657ee8e22c2d1b796f63 (patch)
tree22a78bfeda9685e888f3e0845b3d228f5bc57c4d /sysdeps
parent96e6a7167e127d5e65000f2724e074f1c026e1f1 (diff)
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aarch64: Use the L() macro for labels in memcmp
The L() macro makes the assembly a bit more readable. * sysdeps/aarch64/memcmp.S: Use L() macro for labels.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/aarch64/memcmp.S32
1 files changed, 16 insertions, 16 deletions
diff --git a/sysdeps/aarch64/memcmp.S b/sysdeps/aarch64/memcmp.S
index ccc795adeb..ecd12061b2 100644
--- a/sysdeps/aarch64/memcmp.S
+++ b/sysdeps/aarch64/memcmp.S
@@ -44,7 +44,7 @@ ENTRY_ALIGN (memcmp, 6)
DELOUSE (2)
subs limit, limit, 8
- b.lo .Lless8
+ b.lo L(less8)
/* Limit >= 8, so check first 8 bytes using unaligned loads. */
ldr data1, [src1], 8
@@ -52,65 +52,65 @@ ENTRY_ALIGN (memcmp, 6)
and tmp1, src1, 7
add limit, limit, tmp1
cmp data1, data2
- bne .Lreturn
+ bne L(return)
/* Align src1 and adjust src2 with bytes not yet done. */
sub src1, src1, tmp1
sub src2, src2, tmp1
subs limit, limit, 8
- b.ls .Llast_bytes
+ b.ls L(last_bytes)
/* Loop performing 8 bytes per iteration using aligned src1.
Limit is pre-decremented by 8 and must be larger than zero.
Exit if <= 8 bytes left to do or if the data is not equal. */
.p2align 4
-.Lloop8:
+L(loop8):
ldr data1, [src1], 8
ldr data2, [src2], 8
subs limit, limit, 8
ccmp data1, data2, 0, hi /* NZCV = 0b0000. */
- b.eq .Lloop8
+ b.eq L(loop8)
cmp data1, data2
- bne .Lreturn
+ bne L(return)
/* Compare last 1-8 bytes using unaligned access. */
-.Llast_bytes:
+L(last_bytes):
ldr data1, [src1, limit]
ldr data2, [src2, limit]
/* Compare data bytes and set return value to 0, -1 or 1. */
-.Lreturn:
+L(return):
#ifndef __AARCH64EB__
rev data1, data1
rev data2, data2
#endif
cmp data1, data2
-.Lret_eq:
+L(ret_eq):
cset result, ne
cneg result, result, lo
ret
.p2align 4
/* Compare up to 8 bytes. Limit is [-8..-1]. */
-.Lless8:
+L(less8):
adds limit, limit, 4
- b.lo .Lless4
+ b.lo L(less4)
ldr data1w, [src1], 4
ldr data2w, [src2], 4
cmp data1w, data2w
- b.ne .Lreturn
+ b.ne L(return)
sub limit, limit, 4
-.Lless4:
+L(less4):
adds limit, limit, 4
- beq .Lret_eq
-.Lbyte_loop:
+ beq L(ret_eq)
+L(byte_loop):
ldrb data1w, [src1], 1
ldrb data2w, [src2], 1
subs limit, limit, 1
ccmp data1w, data2w, 0, ne /* NZCV = 0b0000. */
- b.eq .Lbyte_loop
+ b.eq L(byte_loop)
sub result, data1w, data2w
ret