Unable to build kvm-unit-test on i386 system

When trying to build the kvm-unit-test on i386 node, it will fail with:

  gcc -m32 -O1 -g -MMD -MF lib/x86/.usermode.d -Wall -Wwrite-strings -Wclobbered -Wempty-body -Wuninitialized -Wignored-qualifiers -Wunused-but-set-parameter -Werror -fno-omit-frame-pointer -Wno-frame-address -fno-pic -no-pie -Wmissing-parameter-type -Wold-style-declaration -Woverride-init -ffreestanding -I /home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/lib -I lib -c -o lib/x86/usermode.o lib/x86/usermode.c
  <builtin>: recipe for target 'lib/x86/usermode.o' failed
  stderr:
  lib/x86/usermode.c: In function ‘run_in_user’:
  lib/x86/usermode.c:49:2: error: inconsistent operand constraints in an ‘asm’
    asm volatile (
    ^~~
  make: *** [lib/x86/usermode.o] Error 1

Steps:
  1. git clone --depth=1 https://git.kernel.org/pub/scm/virt/kvm/kvm-unit-tests.git
  2. ./configure
  3. make

This is a test suite issue, not a regression, as it can be reproduced on 4.13.0-38

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-38-generic 4.13.0-38.43
ProcVersionSignature: User Name 4.13.0-38.43-generic 4.13.16
Uname: Linux 4.13.0-38-generic i686
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Apr 19 09:39 seq
 crw-rw---- 1 root audio 116, 33 Apr 19 09:39 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.7-0ubuntu3.8
Architecture: i386
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDmesg:

Date: Thu Apr 19 10:12:48 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb:
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. PowerEdge R310
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcFB: 0 mgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-38-generic root=UUID=7b91a2b8-2e02-407e-a51d-766f6d969020 ro
RelatedPackageVersions:
 linux-restricted-modules-4.13.0-38-generic N/A
 linux-backports-modules-4.13.0-38-generic N/A
 linux-firmware 1.169.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/17/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.8.2
dmi.board.name: 05XKKK
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.8.2:bd08/17/2011:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R310
dmi.sys.vendor: Dell Inc.