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aarch64/strncmp: Unbreak builds with old binutils
Binutils 2.26.* and older do not support moves with shifted registers, so use a separate shift instruction instead.
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@ -1,3 +1,8 @@
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2018-03-14 Siddhesh Poyarekar <siddhesh@sourceware.org>
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* sysdeps/aarch64/strncmp.S (strncmp): Use a separate shift
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instruction to unbreak builds with binutils 2.26 and older.
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2018-03-13 Siddhesh Poyarekar <siddhesh@sourceware.org>
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* sysdeps/aarch64/strncmp.S (count): New macro.
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@ -208,13 +208,15 @@ L(done):
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/* Align the SRC1 to a dword by doing a bytewise compare and then do
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the dword loop. */
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L(try_misaligned_words):
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mov limit_wd, limit, lsr #3
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mov limit_wd, limit
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lsr limit_wd, limit_wd, #3
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cbz count, L(do_misaligned)
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neg count, count
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and count, count, #7
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sub limit, limit, count
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mov limit_wd, limit, lsr #3
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mov limit_wd, limit
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lsr limit_wd, limit_wd, #3
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L(page_end_loop):
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ldrb data1w, [src1], #1
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