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PR target/30315 * config/i386/i386.h (CANONICALIZE_COMPARISON): New. * config/i386/i386.md (plusminus)(addsub)(SWI): New. (*<addsub><mode>3_cc_overflow): New. (*add<mode>3_cconly_overflow): New. (*sub<mode>3_cconly_overflow): New. (*<addsub>si3_zext_cc_overflow): New. * config/i386/predicates.md (fcmov_comparison_operator): Accept CCCmode for LTU, GTU, LEU and GEU. (ix86_comparison_operator): Likewise. (ix86_carry_flag_operator): Carry flag is set if LTU or GTU in CCCmode. * gcc/config/i386/i386.c (put_condition_code): Support CCCmode. (ix86_cc_mode): Use CCCmode when testing for overflow of PLUS or MINUS expressions. testsuite/ PR target/30315 * gcc.target/i386/pr30315.c: New. From-SVN: r127481
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