[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Bug binutils/26259] Can't generate ORR instruction
From: |
nickc at redhat dot com |
Subject: |
[Bug binutils/26259] Can't generate ORR instruction |
Date: |
Tue, 22 Sep 2020 12:49:07 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=26259
Nick Clifton <nickc at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nickc at redhat dot com
--- Comment #2 from Nick Clifton <nickc at redhat dot com> ---
Hi Alexei,
The problem is that "0x00800080" can be encoded as an immediate value for
32-bit vector operations, but it cannot be encoded for 64-bit vectors.
(Because the top 32-bits are all zero, and the encoded constant must be a
single pattern). See section C3.3.2 of the ARM ARM.
So 0x0080008000800080 works (single repeating pattern of 0x0080)
But 0x0000000000800080 does not (two patterns)
Cheers
Nick
--
You are receiving this mail because:
You are on the CC list for the bug.
- [Bug binutils/26259] Can't generate ORR instruction,
nickc at redhat dot com <=