http://sourceware.org/bugzilla/show_bug.cgi?id=13843
Bug #: 13843
Summary: Negative immediate for vmov fails on 32-bit host
Product: binutils
Version: 2.23 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gas
AssignedTo: unassig...@sourceware.org
ReportedBy: a...@sourceware.org
Classification: Unclassified
Host: i686-pc-linux-gnu armv7l-unknown-linux-gnu
Target: arm
These two inputs are supposed to give the same output:
vmov.i64 d21, #-65536 @ di
vmov.i64 d21, #0xffffffffffff0000 @ di
But the actual disassembly looks like this:
0: efc0 5e3c vmov.i64 d21, #0x00000000ffff0000
4: ffc7 5e3c vmov.i64 d21, #0xffffffffffff0000
The negative decimal constant has been truncated to 32 bits.
This bug appears to only occur on 32-bit hosts. (I've reproduced it on i686 and
armv7a, but not on x86_64.)
This may be related to bug 12715, although that's already been fixed.
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