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* [Bug target/99820] New: aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs @ 2021-03-29 20:04 acoplan at gcc dot gnu.org 2021-03-29 20:05 ` [Bug target/99820] " acoplan at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: acoplan at gcc dot gnu.org @ 2021-03-29 20:04 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99820 Bug ID: 99820 Summary: aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: acoplan at gcc dot gnu.org Target Milestone: --- The following fails: $ cat test.c extern short a[]; void f() { for (int i = 0; i < 100; i++) a[i] = 0; } $ aarch64-linux-gnu-gcc -c test.c -march=armv8.2-a+sve -O -ftree-vectorize -moverride=tune=use_new_vector_costs during GIMPLE pass: vect test.c: In function ‘f’: test.c:2:6: internal compiler error: Segmentation fault 2 | void f() { | ^ 0xdf6c93 crash_signal /home/alecop01/toolchain/src/gcc/gcc/toplev.c:327 0x1252b9b aarch64_analyze_loop_vinfo /home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64.c:14463 0x1252b9b aarch64_add_stmt_cost /home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64.c:15292 0x111fdd3 add_stmt_cost /home/alecop01/toolchain/src/gcc/gcc/tree-vectorizer.h:1477 0x111fdd3 vect_compute_single_scalar_iteration_cost /home/alecop01/toolchain/src/gcc/gcc/tree-vect-loop.c:1292 0x111fdd3 vect_analyze_loop_2 /home/alecop01/toolchain/src/gcc/gcc/tree-vect-loop.c:2311 0x1122169 vect_analyze_loop(loop*, vec_info_shared*) /home/alecop01/toolchain/src/gcc/gcc/tree-vect-loop.c:2985 0x115847b try_vectorize_loop_1 /home/alecop01/toolchain/src/gcc/gcc/tree-vectorizer.c:1009 0x11589b3 try_vectorize_loop /home/alecop01/toolchain/src/gcc/gcc/tree-vectorizer.c:1162 0x1158cf9 vectorize_loops() /home/alecop01/toolchain/src/gcc/gcc/tree-vectorizer.c:1243 0xfd74cb execute /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-loop.c:414 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/99820] aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs 2021-03-29 20:04 [Bug target/99820] New: aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs acoplan at gcc dot gnu.org @ 2021-03-29 20:05 ` acoplan at gcc dot gnu.org 2021-03-30 15:43 ` cvs-commit at gcc dot gnu.org 2021-03-30 15:44 ` ktkachov at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: acoplan at gcc dot gnu.org @ 2021-03-29 20:05 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99820 Alex Coplan <acoplan at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to fail| |11.0 Target Milestone|--- |11.0 Keywords| |ice-on-valid-code CC| |rsandifo at gcc dot gnu.org Target| |aarch64 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/99820] aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs 2021-03-29 20:04 [Bug target/99820] New: aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs acoplan at gcc dot gnu.org 2021-03-29 20:05 ` [Bug target/99820] " acoplan at gcc dot gnu.org @ 2021-03-30 15:43 ` cvs-commit at gcc dot gnu.org 2021-03-30 15:44 ` ktkachov at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2021-03-30 15:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99820 --- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Kyrylo Tkachov <ktkachov@gcc.gnu.org>: https://gcc.gnu.org/g:c277abd9cd3d10db59f9965d7d6356868da42a9f commit r11-7913-gc277abd9cd3d10db59f9965d7d6356868da42a9f Author: Kyrylo Tkachov <kyrylo.tkachov@arm.com> Date: Tue Mar 30 16:42:17 2021 +0100 aarch64: PR target/99820: Guard on available SVE issue info before using This fixes a simple segfault ICE when using the use_new_vector_costs tunable with a CPU tuning that it wasn't intended for. I'm not adding a testcase here as we intend to remove the tunable for GCC 12 anyway (the new costing logic will remain and will benefit from this extra check, but the -moverride option will no longer exist). gcc/ChangeLog: PR target/99820 * config/aarch64/aarch64.c (aarch64_analyze_loop_vinfo): Check for available issue_info before using it. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/99820] aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs 2021-03-29 20:04 [Bug target/99820] New: aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs acoplan at gcc dot gnu.org 2021-03-29 20:05 ` [Bug target/99820] " acoplan at gcc dot gnu.org 2021-03-30 15:43 ` cvs-commit at gcc dot gnu.org @ 2021-03-30 15:44 ` ktkachov at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: ktkachov at gcc dot gnu.org @ 2021-03-30 15:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99820 ktkachov at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ktkachov at gcc dot gnu.org Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #2 from ktkachov at gcc dot gnu.org --- Fixed. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-03-30 15:44 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-03-29 20:04 [Bug target/99820] New: aarch64: ICE (segfault) in aarch64_analyze_loop_vinfo with -moverride=tune=use_new_vector_costs acoplan at gcc dot gnu.org 2021-03-29 20:05 ` [Bug target/99820] " acoplan at gcc dot gnu.org 2021-03-30 15:43 ` cvs-commit at gcc dot gnu.org 2021-03-30 15:44 ` ktkachov at gcc dot gnu.org
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