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Alpha: Adjust MEM alignment for block clear [PR115459]

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By inference it appears to me that the same fix for PR target/115459
needs to be applied to the block clear operation that has been done for
block move, as implemented by commit ccfe715180 ("[alpha] adjust MEM
alignment for block move [PR115459]").

	gcc/
	PR target/115459
	* config/alpha/alpha.cc (alpha_expand_block_clear): Adjust MEM
	to match inferred alignment.
This commit is contained in:
Maciej W. Rozycki 2024-12-25 22:23:40 +00:00
parent 6036a1a479
commit 2984a3fac3
1 changed files with 6 additions and 0 deletions
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6
gcc/config/alpha/alpha.cc
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@ -4076,6 +4076,12 @@ alpha_expand_block_clear (rtx operands[])
else if (a >= 16)
align = a, alignofs = 2 - c % 2;
}
if (MEM_P (orig_dst) && MEM_ALIGN (orig_dst) < align)
{
orig_dst = shallow_copy_rtx (orig_dst);
set_mem_align (orig_dst, align);
}
}
/* Handle an unaligned prefix first. */