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* [Bug c/101346] New: ICE: maximum number of generated reload insns per insn achieved (90) @ 2021-07-06 17:27 gscfq@t-online.de 2021-07-06 17:57 ` [Bug c/101346] " ubizjak at gmail dot com ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: gscfq@t-online.de @ 2021-07-06 17:27 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101346 Bug ID: 101346 Summary: ICE: maximum number of generated reload insns per insn achieved (90) Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: gscfq@t-online.de Target Milestone: --- Affects versions down to at least r5 : $ cat z1.c _Decimal128 foo (_Decimal128 x) { return - __builtin_fabsd128 (x); } $ gcc-12-20210704 -c z1.c -O0 -m32 -fprofile-generate during RTL pass: reload z1.c: In function 'foo': z1.c:5:1: internal compiler error: maximum number of generated reload insns per insn achieved (90) 5 | } | ^ 0xa84c98 lra_constraints(bool) ../../gcc/lra-constraints.c:5091 0xa72932 lra(_IO_FILE*) ../../gcc/lra.c:2336 0xa2d499 do_reload ../../gcc/ira.c:5822 0xa2d499 execute ../../gcc/ira.c:6008 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/101346] ICE: maximum number of generated reload insns per insn achieved (90) 2021-07-06 17:27 [Bug c/101346] New: ICE: maximum number of generated reload insns per insn achieved (90) gscfq@t-online.de @ 2021-07-06 17:57 ` ubizjak at gmail dot com 2021-07-15 9:47 ` [Bug target/101346] " ubizjak at gmail dot com 2021-07-15 20:41 ` cvs-commit at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: ubizjak at gmail dot com @ 2021-07-06 17:57 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101346 --- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to G. Steinmetz from comment #0) > $ gcc-12-20210704 -c z1.c -O0 -m32 -fprofile-generate Also needs -msse. It looks that: (insn 38 37 39 6 (set (subreg:SI (reg:TD 83 [ _2 ]) 0) (subreg:SI (reg:TD 82 [ _1 ]) 0)) "pr101346.c":4:10 75 {*movsi_internal} (nil)) causes reload loop. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/101346] ICE: maximum number of generated reload insns per insn achieved (90) 2021-07-06 17:27 [Bug c/101346] New: ICE: maximum number of generated reload insns per insn achieved (90) gscfq@t-online.de 2021-07-06 17:57 ` [Bug c/101346] " ubizjak at gmail dot com @ 2021-07-15 9:47 ` ubizjak at gmail dot com 2021-07-15 20:41 ` cvs-commit at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: ubizjak at gmail dot com @ 2021-07-15 9:47 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101346 Uroš Bizjak <ubizjak at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com Ever confirmed|0 |1 Last reconfirmed| |2021-07-15 Status|UNCONFIRMED |ASSIGNED --- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> --- Created attachment 51155 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51155&action=edit Proposed patch ix86_hard_regno_mode_ok allows TDmode values in general registers, but 32bit targets do not support 128bit values in general registers natively. Also allow TDmode values in SSE registers. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/101346] ICE: maximum number of generated reload insns per insn achieved (90) 2021-07-06 17:27 [Bug c/101346] New: ICE: maximum number of generated reload insns per insn achieved (90) gscfq@t-online.de 2021-07-06 17:57 ` [Bug c/101346] " ubizjak at gmail dot com 2021-07-15 9:47 ` [Bug target/101346] " ubizjak at gmail dot com @ 2021-07-15 20:41 ` cvs-commit at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2021-07-15 20:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101346 --- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Uros Bizjak <uros@gcc.gnu.org>: https://gcc.gnu.org/g:f364cdffa47af574f90f671b2dcf5afa91442741 commit r12-2340-gf364cdffa47af574f90f671b2dcf5afa91442741 Author: Uros Bizjak <ubizjak@gmail.com> Date: Thu Jul 15 22:34:25 2021 +0200 i386: Fix ix86_hard_regno_mode_ok for TDmode on 32bit targets [PR101346] General regs on 32bit targets do not support 128bit modes, including TDmode. gcc/ 2021-07-15 Uroš Bizjak <ubizjak@gmail.com> PR target/101346 * config/i386/i386.h (VALID_SSE_REG_MODE): Add TDmode. (VALID_INT_MODE_P): Add SDmode and DDmode. Add TDmode for TARGET_64BIT. (VALID_DFP_MODE_P): Remove. * config/i386/i386.c (ix86_hard_regno_mode_ok): Do not use VALID_DFP_MODE_P. gcc/testsuite/ 2021-07-15 Uroš Bizjak <ubizjak@gmail.com> PR target/101346 * gcc.target/i386/pr101346.c: New test. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-07-15 20:41 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-07-06 17:27 [Bug c/101346] New: ICE: maximum number of generated reload insns per insn achieved (90) gscfq@t-online.de 2021-07-06 17:57 ` [Bug c/101346] " ubizjak at gmail dot com 2021-07-15 9:47 ` [Bug target/101346] " ubizjak at gmail dot com 2021-07-15 20:41 ` cvs-commit at gcc dot gnu.org
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