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Mon, 14 Oct 2024 06:14:01 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id XhSHOqm2DGeZSAAAD6G6ig (envelope-from ); Mon, 14 Oct 2024 06:14:01 +0000 Date: Mon, 14 Oct 2024 08:14:01 +0200 (CEST) From: Richard Biener To: gcc-patches@gcc.gnu.org cc: Jakub Jelinek Subject: [PATCH] middle-end/116891 - fix (negate (IFN_FNMS@3 @0 @1 @2)) -> (IFN_FMA @0 @1 @2) MIME-Version: 1.0 Message-Id: <20241014061402.028DE13A51@imap1.dmz-prg2.suse.org> X-Rspamd-Queue-Id: 2DA9621AE0 X-Spam-Level: X-Spamd-Result: default: False [-4.51 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; MIME_TRACE(0.00)[0:+]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; ARC_NA(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; FUZZY_BLOCKED(0.00)[rspamd.com]; TO_DN_SOME(0.00)[]; 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Bootstrap and regtest running on x86_64-unknown-linux-gnu, OK? Richard. PR middle-end/116891 * match.pd ((negate (IFN_FNMS@3 @0 @1 @2)) -> (IFN_FMA @0 @1 @2)): Only enable for !HONOR_SIGN_DEPENDENT_ROUNDING. --- gcc/match.pd | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/match.pd b/gcc/match.pd index eff1ace87f5..b65998f201d 100644 --- a/gcc/match.pd +++ b/gcc/match.pd @@ -9482,7 +9482,7 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT) (IFN_FMA @0 @1 @2)) (simplify (negate (IFN_FNMS@3 @0 @1 @2)) - (if (single_use (@3)) + (if (!HONOR_SIGN_DEPENDENT_ROUNDING (type) && single_use (@3)) (IFN_FMA @0 @1 @2)))) /* CLZ simplifications. */