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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/115982] ICE: unrecognizable insn in ira_remove_insn_scratches with -mavx512vl Date: Thu, 18 Jul 2024 17:39:10 +0000 [thread overview] Message-ID: <bug-115982-4-C1xxTyNoy4@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-115982-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115982 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|ra | Component|rtl-optimization |target --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- IRA is the first pass after split1 that runs recog on the instructions. So that is why ira is mentioned. split1 splits: ``` (insn 17 13 18 2 (set (reg/i:V4SI 20 xmm0) (vec_merge:V4SI (const_vector:V4SI [ (const_int -1 [0xffffffffffffffff]) repeated x4 ]) (const_vector:V4SI [ (const_int 0 [0]) repeated x4 ]) (unspec:QI [ (reg:V4SF 106) (reg:V4SF 102) (const_int 0 [0]) ] UNSPEC_PCMP))) "/app/example.cpp":20:1 2929 {*avx_cmpv4sf3_1} (expr_list:REG_DEAD (reg:V4SF 102) (expr_list:REG_DEAD (reg:V4SF 106) (nil)))) ``` into: ``` (insn 23 13 24 2 (set (reg:V4SF 107) (unspec:V4SF [ (reg:V4SF 106) (reg:V4SF 102) (const_int 0 [0]) ] UNSPEC_PCMP)) "/app/example.cpp":20:1 -1 (nil)) (insn 24 23 18 2 (set (reg/i:V4SI 20 xmm0) (subreg:V4SI (reg:V4SF 107) 0)) "/app/example.cpp":20:1 -1 (nil)) ```
next prev parent reply other threads:[~2024-07-18 17:39 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-07-18 10:08 [Bug rtl-optimization/115982] New: " pheeck at gcc dot gnu.org 2024-07-18 11:32 ` [Bug rtl-optimization/115982] " pheeck at gcc dot gnu.org 2024-07-18 17:39 ` pinskia at gcc dot gnu.org [this message] 2024-07-18 17:47 ` [Bug target/115982] " pinskia at gcc dot gnu.org 2024-07-19 14:52 ` [Bug target/115982] [15 Regression] ICE: unrecognizable insn in ira_remove_insn_scratches with -mavx512vl since r15-1742 jakub at gcc dot gnu.org 2024-07-22 2:20 ` liuhongt at gcc dot gnu.org 2024-07-23 5:54 ` liuhongt at gcc dot gnu.org 2024-08-19 5:34 ` liuhongt at gcc dot gnu.org
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