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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=iii@linux.ibm.com; helo=mx0a-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: 1707166786377100003 Content-Type: text/plain; charset="utf-8" Check the CVB's, CVBY's, and CVBG's corner cases. Co-developed-by: Pavel Zbitskiy Reviewed-by: Thomas Huth Tested-by: Thomas Huth Signed-off-by: Ilya Leoshkevich --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/cvb.c | 102 ++++++++++++++++++++++++++++++++ 2 files changed, 103 insertions(+) create mode 100644 tests/tcg/s390x/cvb.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.tar= get index 04e4bddd83d..e2aba2ec274 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -46,6 +46,7 @@ TESTS+=3Dlaalg TESTS+=3Dadd-logical-with-carry TESTS+=3Dlae TESTS+=3Dcvd +TESTS+=3Dcvb =20 cdsg: CFLAGS+=3D-pthread cdsg: LDFLAGS+=3D-pthread diff --git a/tests/tcg/s390x/cvb.c b/tests/tcg/s390x/cvb.c new file mode 100644 index 00000000000..e1735f6b81c --- /dev/null +++ b/tests/tcg/s390x/cvb.c @@ -0,0 +1,102 @@ +/* + * Test the CONVERT TO BINARY instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include +#include +#include + +static int signum; + +static void signal_handler(int n) +{ + signum =3D n; +} + +#define FAIL 0x1234567887654321 +#define OK32(x) (0x1234567800000000 | (uint32_t)(x)) + +static int64_t cvb(uint64_t x) +{ + int64_t ret =3D FAIL; + + signum =3D -1; + asm("cvb %[ret],%[x]" : [ret] "+r" (ret) : [x] "R" (x)); + + return ret; +} + +static int64_t cvby(uint64_t x) +{ + int64_t ret =3D FAIL; + + signum =3D -1; + asm("cvby %[ret],%[x]" : [ret] "+r" (ret) : [x] "T" (x)); + + return ret; +} + +static int64_t cvbg(__uint128_t x) +{ + int64_t ret =3D FAIL; + + signum =3D -1; + asm("cvbg %[ret],%[x]" : [ret] "+r" (ret) : [x] "T" (x)); + + return ret; +} + +int main(void) +{ + __uint128_t m =3D (((__uint128_t)0x9223372036854775) << 16) | 0x8070; + struct sigaction act; + int err; + + memset(&act, 0, sizeof(act)); + act.sa_handler =3D signal_handler; + err =3D sigaction(SIGFPE, &act, NULL); + assert(err =3D=3D 0); + err =3D sigaction(SIGILL, &act, NULL); + assert(err =3D=3D 0); + + assert(cvb(0xc) =3D=3D OK32(0) && signum =3D=3D -1); + assert(cvb(0x1c) =3D=3D OK32(1) && signum =3D=3D -1); + assert(cvb(0x25594c) =3D=3D OK32(25594) && signum =3D=3D -1); + assert(cvb(0x1d) =3D=3D OK32(-1) && signum =3D=3D -1); + assert(cvb(0x2147483647c) =3D=3D OK32(0x7fffffff) && signum =3D=3D -1); + assert(cvb(0x2147483648d) =3D=3D OK32(-0x80000000) && signum =3D=3D -1= ); + assert(cvb(0x7) =3D=3D FAIL && signum =3D=3D SIGILL); + assert(cvb(0x2147483648c) =3D=3D OK32(0x80000000) && signum =3D=3D SIG= FPE); + assert(cvb(0x3000000000c) =3D=3D OK32(0xb2d05e00) && signum =3D=3D SIG= FPE); + assert(cvb(0x2147483649d) =3D=3D OK32(0x7fffffff) && signum =3D=3D SIG= FPE); + assert(cvb(0x3000000000d) =3D=3D OK32(0x4d2fa200) && signum =3D=3D SIG= FPE); + + assert(cvby(0xc) =3D=3D OK32(0)); + assert(cvby(0x1c) =3D=3D OK32(1)); + assert(cvby(0x25594c) =3D=3D OK32(25594)); + assert(cvby(0x1d) =3D=3D OK32(-1)); + assert(cvby(0x2147483647c) =3D=3D OK32(0x7fffffff)); + assert(cvby(0x2147483648d) =3D=3D OK32(-0x80000000)); + assert(cvby(0x7) =3D=3D FAIL && signum =3D=3D SIGILL); + assert(cvby(0x2147483648c) =3D=3D OK32(0x80000000) && signum =3D=3D SI= GFPE); + assert(cvby(0x3000000000c) =3D=3D OK32(0xb2d05e00) && signum =3D=3D SI= GFPE); + assert(cvby(0x2147483649d) =3D=3D OK32(0x7fffffff) && signum =3D=3D SI= GFPE); + assert(cvby(0x3000000000d) =3D=3D OK32(0x4d2fa200) && signum =3D=3D SI= GFPE); + + assert(cvbg(0xc) =3D=3D 0); + assert(cvbg(0x1c) =3D=3D 1); + assert(cvbg(0x25594c) =3D=3D 25594); + assert(cvbg(0x1d) =3D=3D -1); + assert(cvbg(m + 0xc) =3D=3D 0x7fffffffffffffff); + assert(cvbg(m + 0x1d) =3D=3D -0x8000000000000000); + assert(cvbg(0x7) =3D=3D FAIL && signum =3D=3D SIGILL); + assert(cvbg(m + 0x1c) =3D=3D FAIL && signum =3D=3D SIGFPE); + assert(cvbg(m + 0x2d) =3D=3D FAIL && signum =3D=3D SIGFPE); + assert(cvbg(((__uint128_t)1 << 80) + 0xc) =3D=3D FAIL && signum =3D=3D= SIGFPE); + assert(cvbg(((__uint128_t)1 << 80) + 0xd) =3D=3D FAIL && signum =3D=3D= SIGFPE); + + return EXIT_SUCCESS; +} --=20 2.43.0