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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.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: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: 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: 1707166786399100004 Content-Type: text/plain; charset="utf-8" Check the CVD's, CVDY's, and CVDG's corner cases. Reviewed-by: Thomas Huth Signed-off-by: Ilya Leoshkevich --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/cvd.c | 63 +++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+) create mode 100644 tests/tcg/s390x/cvd.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.tar= get index 30994dcf9c2..04e4bddd83d 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -45,6 +45,7 @@ TESTS+=3Dclc TESTS+=3Dlaalg TESTS+=3Dadd-logical-with-carry TESTS+=3Dlae +TESTS+=3Dcvd =20 cdsg: CFLAGS+=3D-pthread cdsg: LDFLAGS+=3D-pthread diff --git a/tests/tcg/s390x/cvd.c b/tests/tcg/s390x/cvd.c new file mode 100644 index 00000000000..d776688985e --- /dev/null +++ b/tests/tcg/s390x/cvd.c @@ -0,0 +1,63 @@ +/* + * Test the CONVERT TO DECIMAL instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include + +static uint64_t cvd(int32_t x) +{ + uint64_t ret; + + asm("cvd %[x],%[ret]" : [ret] "=3DR" (ret) : [x] "r" (x)); + + return ret; +} + +static uint64_t cvdy(int32_t x) +{ + uint64_t ret; + + asm("cvdy %[x],%[ret]" : [ret] "=3DT" (ret) : [x] "r" (x)); + + return ret; +} + +static __uint128_t cvdg(int64_t x) +{ + __uint128_t ret; + + asm("cvdg %[x],%[ret]" : [ret] "=3DT" (ret) : [x] "r" (x)); + + return ret; +} + +int main(void) +{ + __uint128_t m =3D (((__uint128_t)0x9223372036854775) << 16) | 0x8070; + + assert(cvd(0) =3D=3D 0xc); + assert(cvd(1) =3D=3D 0x1c); + assert(cvd(25594) =3D=3D 0x25594c); + assert(cvd(-1) =3D=3D 0x1d); + assert(cvd(0x7fffffff) =3D=3D 0x2147483647c); + assert(cvd(-0x80000000) =3D=3D 0x2147483648d); + + assert(cvdy(0) =3D=3D 0xc); + assert(cvdy(1) =3D=3D 0x1c); + assert(cvdy(25594) =3D=3D 0x25594c); + assert(cvdy(-1) =3D=3D 0x1d); + assert(cvdy(0x7fffffff) =3D=3D 0x2147483647c); + assert(cvdy(-0x80000000) =3D=3D 0x2147483648d); + + assert(cvdg(0) =3D=3D 0xc); + assert(cvdg(1) =3D=3D 0x1c); + assert(cvdg(25594) =3D=3D 0x25594c); + assert(cvdg(-1) =3D=3D 0x1d); + assert(cvdg(0x7fffffffffffffff) =3D=3D (m + 0xc)); + assert(cvdg(-0x8000000000000000) =3D=3D (m + 0x1d)); + + return EXIT_SUCCESS; +} --=20 2.43.0