https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82692
--- Comment #21 from uros at gcc dot gnu.org --- Author: uros Date: Fri Oct 27 18:13:14 2017 New Revision: 254167 URL: https://gcc.gnu.org/viewcvs?rev=254167&root=gcc&view=rev Log: PR target/82692 * config/i386/i386-modes.def (CCFPU): Remove definition. * config/i386/i386.c (put_condition_mode): Remove CCFPU mode handling. (ix86_cc_modes_compatible): Ditto. (ix86_expand_carry_flag_compare): Ditto. (ix86_expand_int_movcc): Ditto. (ix86_expand_int_addcc): Ditto. (ix86_reverse_condition): Ditto. (ix86_unordered_fp_compare): Rename from ix86_fp_compare_mode. Return true/false for unordered/ordered fp comparisons. (ix86_cc_mode): Always return CCFPmode for float mode comparisons. (ix86_prepare_fp_compare_args): Update for rename. (ix86_expand_fp_compare): Update for rename. Generate unordered compare RTXes wrapped with UNSPEC_NOTRAP unspec. (ix86_expand_sse_compare_and_jump): Ditto. * config/i386/predicates.md (fcmov_comparison_operator): Remove CCFPU mode handling. (ix86_comparison_operator): Ditto. (ix86_carry_flag_operator): Ditto. * config/i386/i386.md (UNSPEC_NOTRAP): New unspec. (*cmpu<mode>_i387): Wrap compare RTX with UNSPEC_NOTRAP unspec. (*cmpu<mode>_cc_i387): Ditto. (FPCMP): Remove mode iterator. (unord): Remove mode attribute. (unord_subst): New define_subst transformation (unord): New define_subst attribute. (unordered): Ditto. (*cmpi<unord><MODEF:mode>): Rewrite using unord_subst transformation. (*cmpi<unord>xf_i387): Ditto. * config/i386/sse.md (<sse>_<unord>comi<round_saeonly_name>): Merge from <sse>_comi<round_saeonly_name> and <sse>_ucomi<round_saeonly_name> using unord_subst transformation. * config/i386/subst.md (SUBST_A): Remove CCFP and CCFPU modes. (round_saeonly): Also handle CCFP mode. * reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_NOTRAP unspec. Remove UNSPEC_SAHF unspec handling. testsuite/ChangeLog: PR target/82692 * gcc.dg/torture/pr82692.c: New test. Added: trunk/gcc/testsuite/gcc.target/i386/pr82692.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386-modes.def trunk/gcc/config/i386/i386.c trunk/gcc/config/i386/i386.md trunk/gcc/config/i386/predicates.md trunk/gcc/config/i386/sse.md trunk/gcc/config/i386/subst.md trunk/gcc/reg-stack.c trunk/gcc/testsuite/ChangeLog