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* [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 @ 2020-07-21 10:49 zsojka at seznam dot cz 2020-07-21 14:20 ` [Bug target/96263] " rguenth at gcc dot gnu.org ` (6 more replies) 0 siblings, 7 replies; 8+ messages in thread From: zsojka at seznam dot cz @ 2020-07-21 10:49 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96263 Bug ID: 96263 Summary: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 48904 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48904&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 testcase.c testcase.c: In function 'm': testcase.c:12:1: warning: AVX512F vector return without AVX512F enabled changes the ABI [-Wpsabi] 12 | a m(unsigned short n, __int128 o) { | ^ during RTL pass: reload testcase.c:27:1: internal compiler error: in lra_assign, at lra-assigns.c:1648 27 | } | ^ 0xefe25b lra_assign(bool&) /repo/gcc-trunk/gcc/lra-assigns.c:1648 0xef7f3c lra(_IO_FILE*) /repo/gcc-trunk/gcc/lra.c:2465 0xea7949 do_reload /repo/gcc-trunk/gcc/ira.c:5525 0xea7949 execute /repo/gcc-trunk/gcc/ira.c:5711 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. $ x86_64-pc-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest/bin/x86_64-pc-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r11-2246-20200721142816-gc850a642e1d-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++ --enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra --disable-bootstrap --with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld --with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r11-2246-20200721142816-gc850a642e1d-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 11.0.0 20200721 (experimental) (GCC) ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 2020-07-21 10:49 [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 zsojka at seznam dot cz @ 2020-07-21 14:20 ` rguenth at gcc dot gnu.org 2020-07-23 6:51 ` rguenth at gcc dot gnu.org ` (5 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2020-07-21 14:20 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96263 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |ra Target Milestone|--- |10.2 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 2020-07-21 10:49 [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 zsojka at seznam dot cz 2020-07-21 14:20 ` [Bug target/96263] " rguenth at gcc dot gnu.org @ 2020-07-23 6:51 ` rguenth at gcc dot gnu.org 2020-07-23 10:41 ` [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 since r10-4373-gc265dfbf748e9fc3 marxin at gcc dot gnu.org ` (4 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2020-07-23 6:51 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96263 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|10.2 |10.3 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 10.2 is released, adjusting target milestone. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 since r10-4373-gc265dfbf748e9fc3 2020-07-21 10:49 [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 zsojka at seznam dot cz 2020-07-21 14:20 ` [Bug target/96263] " rguenth at gcc dot gnu.org 2020-07-23 6:51 ` rguenth at gcc dot gnu.org @ 2020-07-23 10:41 ` marxin at gcc dot gnu.org 2020-07-23 11:17 ` rguenth at gcc dot gnu.org ` (3 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: marxin at gcc dot gnu.org @ 2020-07-23 10:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96263 Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2020-07-23 CC| |marxin at gcc dot gnu.org, | |rguenth at gcc dot gnu.org Ever confirmed|0 |1 Status|UNCONFIRMED |NEW Summary|[10/11 Regression] ICE: in |[10/11 Regression] ICE: in |lra_assign, at |lra_assign, at |lra-assigns.c:1648 with -O |lra-assigns.c:1648 with -O |-flive-range-shrinkage |-flive-range-shrinkage |-fnon-call-exceptions |-fnon-call-exceptions |-msse4 |-msse4 |--param=max-sched-ready-ins |--param=max-sched-ready-ins |ns=1 |ns=1 since | |r10-4373-gc265dfbf748e9fc3 --- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> --- Started with r10-4373-gc265dfbf748e9fc3. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 since r10-4373-gc265dfbf748e9fc3 2020-07-21 10:49 [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 zsojka at seznam dot cz ` (2 preceding siblings ...) 2020-07-23 10:41 ` [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 since r10-4373-gc265dfbf748e9fc3 marxin at gcc dot gnu.org @ 2020-07-23 11:17 ` rguenth at gcc dot gnu.org 2020-10-12 12:45 ` rguenth at gcc dot gnu.org ` (2 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2020-07-23 11:17 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96263 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- veclower, esp. VEC_COND_EXPR lowering certainly makes a mess out of the testcase (doing component-wise rather than smaller-vector size operations). Also somehow doing odd things like _5 = {e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e .4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_ 6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4 _6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6}; f.68_7 = f; - r_74 = _5 & f.68_7; + _35 = {e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4 _6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e. 4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6 , e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6}; + _38 = BIT_FIELD_REF <_35, 128, 0>; + _40 = BIT_FIELD_REF <f.68_7, 128, 0>; + _43 = _38 & _40; + _45 = {e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6, e.4_6}; + _85 = BIT_FIELD_REF <_45, 128, 128>; + _56 = BIT_FIELD_REF <f.68_7, 128, 128>; + _61 = _56 & _85; ... that _35 is v64qi. Eventually the removed folding made a smaller CTOR from it, but re-emitting the CTOR makes no sense at all. Luckily we clean that up (I have no hopes for -O0 though). We should make veclower behave more sanely. But the change probably just exposed a latent bug. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 since r10-4373-gc265dfbf748e9fc3 2020-07-21 10:49 [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 zsojka at seznam dot cz ` (3 preceding siblings ...) 2020-07-23 11:17 ` rguenth at gcc dot gnu.org @ 2020-10-12 12:45 ` rguenth at gcc dot gnu.org 2020-10-12 12:48 ` marxin at gcc dot gnu.org 2021-01-14 9:05 ` rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2020-10-12 12:45 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96263 --- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> --- Can't reproduce on trunk or the GCC 10 branch anymore. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 since r10-4373-gc265dfbf748e9fc3 2020-07-21 10:49 [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 zsojka at seznam dot cz ` (4 preceding siblings ...) 2020-10-12 12:45 ` rguenth at gcc dot gnu.org @ 2020-10-12 12:48 ` marxin at gcc dot gnu.org 2021-01-14 9:05 ` rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: marxin at gcc dot gnu.org @ 2020-10-12 12:48 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96263 --- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- Fixed on master with r11-2577-g229752afe3156a39. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 since r10-4373-gc265dfbf748e9fc3 2020-07-21 10:49 [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 zsojka at seznam dot cz ` (5 preceding siblings ...) 2020-10-12 12:48 ` marxin at gcc dot gnu.org @ 2021-01-14 9:05 ` rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-01-14 9:05 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96263 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- Fixed. Well, the IL was certainly somewhat bogus and we're doing a better job now. ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2021-01-14 9:05 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-07-21 10:49 [Bug target/96263] New: [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 zsojka at seznam dot cz 2020-07-21 14:20 ` [Bug target/96263] " rguenth at gcc dot gnu.org 2020-07-23 6:51 ` rguenth at gcc dot gnu.org 2020-07-23 10:41 ` [Bug target/96263] [10/11 Regression] ICE: in lra_assign, at lra-assigns.c:1648 with -O -flive-range-shrinkage -fnon-call-exceptions -msse4 --param=max-sched-ready-insns=1 since r10-4373-gc265dfbf748e9fc3 marxin at gcc dot gnu.org 2020-07-23 11:17 ` rguenth at gcc dot gnu.org 2020-10-12 12:45 ` rguenth at gcc dot gnu.org 2020-10-12 12:48 ` marxin at gcc dot gnu.org 2021-01-14 9:05 ` rguenth at gcc dot gnu.org
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