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none X-Spamd-Result: default: False [2.06 / 50.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; MISSING_MID(2.50)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCPT_COUNT_TWO(0.00)[2]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; BAYES_HAM(-0.34)[76.22%] X-Spam-Score: 2.06 X-Spam-Status: No, score=-10.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, MISSING_MID, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Message-Id: <20240111140407.E34013857BB0@sourceware.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1787803046662963381 X-GMAIL-MSGID: 1787803046662963381 The following adds guards avoiding code generation to expand_perm_as_a_vlbr_vstbr_candidate when d.testing_p. Built and tested on the testcase in the PR. OK to push as obvious? Otherwise please pick up, test and push. Thanks, Richard. PR target/112280 * config/s390/s390.cc (expand_perm_as_a_vlbr_vstbr_candidate): Do not generate code when d.testing_p. --- gcc/config/s390/s390.cc | 36 ++++++++++++++++++++++++------------ 1 file changed, 24 insertions(+), 12 deletions(-) diff --git a/gcc/config/s390/s390.cc b/gcc/config/s390/s390.cc index 748ad9cd932..f182c26e78b 100644 --- a/gcc/config/s390/s390.cc +++ b/gcc/config/s390/s390.cc @@ -17867,33 +17867,45 @@ expand_perm_as_a_vlbr_vstbr_candidate (const struct expand_vec_perm_d &d) if (memcmp (d.perm, perm[0], MAX_VECT_LEN) == 0) { - rtx target = gen_rtx_SUBREG (V8HImode, d.target, 0); - rtx op0 = gen_rtx_SUBREG (V8HImode, d.op0, 0); - emit_insn (gen_bswapv8hi (target, op0)); + if (!d.testing_p) + { + rtx target = gen_rtx_SUBREG (V8HImode, d.target, 0); + rtx op0 = gen_rtx_SUBREG (V8HImode, d.op0, 0); + emit_insn (gen_bswapv8hi (target, op0)); + } return true; } if (memcmp (d.perm, perm[1], MAX_VECT_LEN) == 0) { - rtx target = gen_rtx_SUBREG (V4SImode, d.target, 0); - rtx op0 = gen_rtx_SUBREG (V4SImode, d.op0, 0); - emit_insn (gen_bswapv4si (target, op0)); + if (!d.testing_p) + { + rtx target = gen_rtx_SUBREG (V4SImode, d.target, 0); + rtx op0 = gen_rtx_SUBREG (V4SImode, d.op0, 0); + emit_insn (gen_bswapv4si (target, op0)); + } return true; } if (memcmp (d.perm, perm[2], MAX_VECT_LEN) == 0) { - rtx target = gen_rtx_SUBREG (V2DImode, d.target, 0); - rtx op0 = gen_rtx_SUBREG (V2DImode, d.op0, 0); - emit_insn (gen_bswapv2di (target, op0)); + if (!d.testing_p) + { + rtx target = gen_rtx_SUBREG (V2DImode, d.target, 0); + rtx op0 = gen_rtx_SUBREG (V2DImode, d.op0, 0); + emit_insn (gen_bswapv2di (target, op0)); + } return true; } if (memcmp (d.perm, perm[3], MAX_VECT_LEN) == 0) { - rtx target = gen_rtx_SUBREG (V1TImode, d.target, 0); - rtx op0 = gen_rtx_SUBREG (V1TImode, d.op0, 0); - emit_insn (gen_bswapv1ti (target, op0)); + if (!d.testing_p) + { + rtx target = gen_rtx_SUBREG (V1TImode, d.target, 0); + rtx op0 = gen_rtx_SUBREG (V1TImode, d.op0, 0); + emit_insn (gen_bswapv1ti (target, op0)); + } return true; }