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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=iii@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1785760803635158500 Content-Type: text/plain; charset="utf-8" Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich Reviewed-by: Richard Henderson --- v1 -> v2: CC: qemu-devel@nongnu.org. Check that upper bytes are not modified. tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/load-store-reversed.c | 46 +++++++++++++++++++++++++++ 2 files changed, 47 insertions(+) create mode 100644 tests/tcg/s390x/load-store-reversed.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.tar= get index 0ca030ded01..fe1fba3de2f 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -50,6 +50,7 @@ TESTS+=3Dcvb TESTS+=3Dts TESTS+=3Dex-smc TESTS+=3Ddivide-to-integer +TESTS+=3Dload-store-reversed =20 cdsg: CFLAGS+=3D-pthread cdsg: LDFLAGS+=3D-pthread diff --git a/tests/tcg/s390x/load-store-reversed.c b/tests/tcg/s390x/load-s= tore-reversed.c new file mode 100644 index 00000000000..bcc6b98dd3b --- /dev/null +++ b/tests/tcg/s390x/load-store-reversed.c @@ -0,0 +1,46 @@ +/* + * Test the LOAD REVERSED and STORE REVERSED instructions. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include + +int main(void) +{ + long i =3D 0x123456789abcdefULL, o; + + o =3D i; + asm("lrvr %0,%1" : "+r" (o) : "r" (i)); + assert(o =3D=3D 0x1234567efcdab89ULL); + + o =3D i; + asm("lrvgr %0,%1" : "+r" (o) : "r" (i)); + assert(o =3D=3D 0xefcdab8967452301ULL); + + o =3D i; + asm("lrvh %0,%1" : "=3Dr" (o) : "T" (i)); + assert(o =3D=3D 0x123456789ab2301ULL); + + o =3D i; + asm("lrv %0,%1" : "=3Dr" (o) : "T" (i)); + assert(o =3D=3D 0x123456767452301ULL); + + o =3D i; + asm("lrvg %0,%1" : "=3Dr" (o) : "T" (i)); + assert(o =3D=3D 0xefcdab8967452301ULL); + + o =3D i; + asm("strvh %1,%0" : "=3DT" (o) : "r" (i)); + assert(o =3D=3D 0xefcd456789abcdefULL); + + o =3D i; + asm("strv %1,%0" : "=3DT" (o) : "r" (i)); + assert(o =3D=3D 0xefcdab8989abcdefULL); + + o =3D i; + asm("strvg %1,%0" : "=3DT" (o) : "r" (i)); + assert(o =3D=3D 0xefcdab8967452301ULL); + + return EXIT_SUCCESS; +} --=20 2.55.0