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From: "belagod at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/114108] [14 regression] ICE when building opencv-4.8.1 (error: type mismatch in binary expression) since r14-1833 Date: Tue, 05 Mar 2024 08:58:12 +0000 [thread overview] Message-ID: <bug-114108-4-a2FiExEmIJ@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-114108-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114108 --- Comment #8 from Tejas Belagod <belagod at gcc dot gnu.org> --- I find this transformation a bit odd: ... pr114108.c:11:21: note: add new stmt: vect_patt_32.15_181 = .ABD (vect__3.11_177, vect__7.14_180); pr114108.c:11:21: note: ------>vectorizing statement: patt_31 = (unsigned char) patt_32; pr114108.c:11:21: note: transform statement. pr114108.c:11:21: note: vect_is_simple_use: operand .ABD (_3, _7), type of def: internal pr114108.c:11:21: note: vect_is_simple_use: vectype vector([16,16]) unsigned char pr114108.c:11:21: note: transform assignment. pr114108.c:11:21: note: vect_get_vec_defs_for_operand: patt_32 pr114108.c:11:21: note: vect_is_simple_use: operand .ABD (_3, _7), type of def: internal pr114108.c:11:21: note: def_stmt = patt_32 = .ABD (_3, _7); pr114108.c:11:21: note: add new stmt: vect_patt_31.16_182 = VIEW_CONVERT_EXPR<vector([16,16]) signed char>(vect_patt_32.15_181); ... This seems to have a cascading effect on the MIN_EXPR vectorization: pr114108.c:11:21: note: ------>vectorizing statement: patt_30 = (int) patt_31; pr114108.c:11:21: note: ------>vectorizing statement: _11 = dst_18(D) + _1; pr114108.c:11:21: note: ------>vectorizing statement: patt_29 = MIN_EXPR <patt_31, 127>; pr114108.c:11:21: note: transform statement. pr114108.c:11:21: note: vect_is_simple_use: operand (unsigned char) patt_32, type of def: internal pr114108.c:11:21: note: vect_is_simple_use: vectype vector([16,16]) signed char pr114108.c:11:21: note: vect_is_simple_use: operand 127, type of def: constant pr114108.c:11:21: note: transform binary/unary operation. pr114108.c:11:21: note: vect_get_vec_defs_for_operand: patt_31 pr114108.c:11:21: note: vect_is_simple_use: operand (unsigned char) patt_32, type of def: internal pr114108.c:11:21: note: def_stmt = patt_31 = (unsigned char) patt_32; pr114108.c:11:21: note: vect_get_vec_defs_for_operand: 127 pr114108.c:11:21: note: vect_is_simple_use: operand 127, type of def: constant pr114108.c:11:21: note: created new init_stmt: vect_cst__183 = { 127, ... }; pr114108.c:11:21: note: add new stmt: vect_patt_29.17_184 = MIN_EXPR <vect_patt_31.16_182, vect_cst__183>; I suspect that when narrowing analysis drops patt_30 = (int) patt_31; and replaces patt_30 in MIN_EXPR directly with patt_31, the pre-computed vector type_out for patt_30 = (int) patt_31; might be getting reused without getting recomputed. Still digging to see if this theory holds water...
next prev parent reply other threads:[~2024-03-05 8:58 UTC|newest] Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-02-26 0:54 [Bug middle-end/114108] New: [14 regression] ICE when building opencv-4.8.1 (error: type mismatch in binary expression) sjames at gcc dot gnu.org 2024-02-26 0:55 ` [Bug middle-end/114108] " sjames at gcc dot gnu.org 2024-02-26 0:59 ` [Bug tree-optimization/114108] " pinskia at gcc dot gnu.org 2024-02-26 1:01 ` pinskia at gcc dot gnu.org 2024-02-26 5:34 ` pinskia at gcc dot gnu.org 2024-02-26 5:41 ` pinskia at gcc dot gnu.org 2024-02-28 13:00 ` [Bug tree-optimization/114108] [14 regression] ICE when building opencv-4.8.1 (error: type mismatch in binary expression) since r14-1833 jakub at gcc dot gnu.org 2024-02-28 18:27 ` pinskia at gcc dot gnu.org 2024-02-28 18:28 ` jakub at gcc dot gnu.org 2024-03-04 13:18 ` rguenth at gcc dot gnu.org 2024-03-05 8:58 ` belagod at gcc dot gnu.org [this message] 2024-03-06 8:25 ` belagod at gcc dot gnu.org 2024-03-15 6:18 ` cvs-commit at gcc dot gnu.org 2024-03-15 6:31 ` belagod at gcc dot gnu.org 2024-03-15 6:31 ` sjames at gcc dot gnu.org
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