https://sourceware.org/bugzilla/show_bug.cgi?id=28436
Bug ID: 28436
Summary: ARM: too few registers allowed for vpush/vpop with
single precision registers
Product: binutils
Version: 2.36.1
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: markus.klein at sma dot de
Target Milestone: ---
Created attachment 13717
--> https://sourceware.org/bugzilla/attachment.cgi?id=13717&action=edit
vpush and vpop with S registers
vpush and vpop with S registers
vpush and vpop checks that no more than 16 registers are given for these
instructions. Only for D registers this limit is correct, for S registers 32
registers are allowed.
Attached test file.
as -march=armv7-a -mfpu=neon vpushExample.S && objdump a.out
should allow the following instructions
vpush {s0-s31} // -> false error, is a valid command
vpush {s0-s15} // OK
vpop {s0-s15} // OK
vpop {s0-s31} // -> false error, is a valid command
but returns the following error:
register list must contain at least 1 and at most 16 registers -- `vpush
{s0-s31}
register list must contain at least 1 and at most 16 registers -- `vpop
{s0-s31}
This behavior was introduced with Bug 20429
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