http://sourceware.org/bugzilla/show_bug.cgi?id=12715
Summary: Large immediate for neon vmov assembled incorrectly
with as built with --enable-targets=x86_64-linux-gnu
Product: binutils
Version: 2.21
Status: NEW
Severity: normal
Priority: P2
Component: gas
AssignedTo: unassig...@sources.redhat.com
ReportedBy: nereu...@gmail.com
ujkim@DO-ujkim04:~/work/toolchain-bug/as-2.21/neon-immediate-moves$ cat
neon-large-immediate-moves.s
.cpu cortex-a9
.fpu neon
.text
vmov.i64 d9,#0xffffffffffffffff
ujkim@DO-ujkim04:~/work/toolchain-bug/as-2.21/neon-immediate-moves$
arm-linux-gnueabi-as neon-large-immediate-moves.s
ujkim@DO-ujkim04:~/work/toolchain-bug/as-2.21/neon-immediate-moves$
arm-linux-gnueabi-objdump -d a.out
a.out: file format elf32-littlearm
Disassembly of section .text:
00000000 <.text>:
0: f2809e3f vmov.i64 d9, #0x00000000ffffffff
The immediate value should be 0xffffffffffffffff but the assembled result are
ox00000000ffffffff
The toolchain is configured with following option.
../configure --host=i486-linux-gnu --build=i486-linux-gnu
--target=arm-linux-gnueabi --prefix=/tmp/cross/usr --enable-shared
--enable-plugins --enable-targets=x86_64-linux-gnu --disable-werror
--enable-ld=default --enable-gold
If I remove '--enable-targets=x86_64-linux-gnu' from the configure args, it
seems no problem.
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