https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98537
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>: https://gcc.gnu.org/g:8d0737d8f4b10bffe0411507ad2dc21ba7679883 commit r11-7116-g8d0737d8f4b10bffe0411507ad2dc21ba7679883 Author: liuhongt <hongtao....@intel.com> Date: Thu Jan 7 10:15:33 2021 +0800 Fix ICE: Don't generate integer mask comparision for 128/256-bits vector when op_true/op_false are NULL or constm1_rtx/const0_rtx [PR98537] avx512vl-pr92686-vpcmp-{1,2,intelasm-1}.c are used to guard code generation of integer mask comparison, but for vector comparison to vector dest, integer mask comparison is disliked, so delete these useless tests. gcc/ChangeLog: PR target/98537 * config/i386/i386-expand.c (ix86_expand_sse_cmp): Don't generate integer mask comparison for 128/256-bits vector when op_true/op_false is NULL_RTX or CONSTM1_RTX/CONST0_RTX. Also delete redundant !maskcmp condition. (ix86_expand_int_vec_cmp): Ditto but no redundant deletion here. (ix86_expand_sse_movcc): Delete definition of maskcmp, add the condition directly to if (maskcmp), add extra check for cmpmode, it should be MODE_INT. (ix86_expand_fp_vec_cmp): Pass NULL to ix86_expand_sse_cmp's parameters op_true/op_false. (ix86_use_mask_cmp_p): New. gcc/testsuite/ChangeLog: PR target/98537 * g++.target/i386/avx512bw-pr98537-1.C: New test. * g++.target/i386/avx512vl-pr98537-1.C: New test. * g++.target/i386/avx512vl-pr98537-2.C: New test. * gcc.target/i386/avx512vl-pr88547-1.c: Adjust testcase, integer mask comparison should not be generated. * gcc.target/i386/avx512vl-pr92686-vpcmp-1.c: Remove. * gcc.target/i386/avx512vl-pr92686-vpcmp-2.c: Ditto. * gcc.target/i386/avx512vl-pr92686-vpcmp-intelasm-1.c: Ditto.
