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* [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed @ 2021-06-21 14:40 zhendong.su at inf dot ethz.ch 2021-06-22 6:28 ` [Bug tree-optimization/101151] [11/12 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 marxin at gcc dot gnu.org ` (6 more replies) 0 siblings, 7 replies; 8+ messages in thread From: zhendong.su at inf dot ethz.ch @ 2021-06-21 14:40 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101151 Bug ID: 101151 Summary: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zhendong.su at inf dot ethz.ch Target Milestone: --- It appears to be a recent regression. [511] % gcctk -v Using built-in specs. COLLECT_GCC=gcctk COLLECT_LTO_WRAPPER=/local/suz-local/software/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc-trunk/configure --disable-bootstrap --prefix=/local/suz-local/software/local/gcc-trunk --enable-languages=c,c++ --disable-werror --enable-multilib --with-system-zlib Thread model: posix Supported LTO compression algorithms: zlib gcc version 12.0.0 20210621 (experimental) [master revision edf0c3ffb59:30584177106:12bdd39755a25d237b7776153cbe03e171396fc5] (GCC) [512] % [512] % gcctk -O0 small.c; ./a.out [513] % [513] % gcctk -O1 small.c small.c: In function ‘main’: small.c:2:5: error: stmt with wrong VUSE 2 | int main() { | ^~~~ # VUSE <.MEM_8(D)> b.0_1 = b; expected .MEM_6 during GIMPLE pass: sink small.c:2:5: internal compiler error: verify_ssa failed 0x1038aeb verify_ssa(bool, bool) ../../gcc-trunk/gcc/tree-ssa.c:1214 0xcb0437 execute_function_todo ../../gcc-trunk/gcc/passes.c:2049 0xcb11e2 execute_todo ../../gcc-trunk/gcc/passes.c:2096 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. [514] % [514] % cat small.c int a, *b = &a, c, d; int main() { *b; if (a) { L1: a = 0; L2: if (d) { while (b) ; goto L1; } } if (c) goto L2; return 0; } ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/101151] [11/12 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 2021-06-21 14:40 [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch @ 2021-06-22 6:28 ` marxin at gcc dot gnu.org 2021-06-22 6:50 ` rguenth at gcc dot gnu.org ` (5 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: marxin at gcc dot gnu.org @ 2021-06-22 6:28 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101151 Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |11.2 Ever confirmed|0 |1 CC| |marxin at gcc dot gnu.org, | |rguenth at gcc dot gnu.org Status|UNCONFIRMED |NEW Last reconfirmed| |2021-06-22 Summary|ICE at -O1 and above on |[11/12 Regression] ICE at |x86_64-linux-gnu: |-O1 and above on |verify_ssa failed |x86_64-linux-gnu: | |verify_ssa failed since | |r11-3705-gdae673abd37d4004 --- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> --- Started with r11-3705-gdae673abd37d4004. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/101151] [11/12 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 2021-06-21 14:40 [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch 2021-06-22 6:28 ` [Bug tree-optimization/101151] [11/12 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 marxin at gcc dot gnu.org @ 2021-06-22 6:50 ` rguenth at gcc dot gnu.org 2021-06-22 8:13 ` rguenth at gcc dot gnu.org ` (4 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-06-22 6:50 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101151 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |ice-on-valid-code Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Version|unknown |11.1.1 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Meh. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/101151] [11/12 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 2021-06-21 14:40 [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch 2021-06-22 6:28 ` [Bug tree-optimization/101151] [11/12 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 marxin at gcc dot gnu.org 2021-06-22 6:50 ` rguenth at gcc dot gnu.org @ 2021-06-22 8:13 ` rguenth at gcc dot gnu.org 2021-06-22 10:10 ` cvs-commit at gcc dot gnu.org ` (3 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-06-22 8:13 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101151 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- The /* If the blocks are possibly within the same irreducible cycle the above check breaks down. */ check is incomplete. Testing fix. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/101151] [11/12 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 2021-06-21 14:40 [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch ` (2 preceding siblings ...) 2021-06-22 8:13 ` rguenth at gcc dot gnu.org @ 2021-06-22 10:10 ` cvs-commit at gcc dot gnu.org 2021-06-22 10:10 ` [Bug tree-optimization/101151] [11 " rguenth at gcc dot gnu.org ` (2 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2021-06-22 10:10 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101151 --- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>: https://gcc.gnu.org/g:a2ef8395fa970498985764514044e5fd00f7d5c0 commit r12-1718-ga2ef8395fa970498985764514044e5fd00f7d5c0 Author: Richard Biener <rguenther@suse.de> Date: Tue Jun 22 10:14:02 2021 +0200 tree-optimization/101151 - fix irreducible region check for sinking The check whether two blocks are in the same irreducible region and thus post-dominance checks being unreliable was incomplete since an irreducible region can contain reducible sub-regions but if one block is in the irreducible part and one not the check still doesn't work as expected. 2021-06-22 Richard Biener <rguenther@suse.de> PR tree-optimization/101151 * tree-ssa-sink.c (statement_sink_location): Expand irreducible region check. * gcc.dg/torture/pr101151.c: New testcase. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/101151] [11 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 2021-06-21 14:40 [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch ` (3 preceding siblings ...) 2021-06-22 10:10 ` cvs-commit at gcc dot gnu.org @ 2021-06-22 10:10 ` rguenth at gcc dot gnu.org 2021-06-25 9:06 ` cvs-commit at gcc dot gnu.org 2021-06-25 9:07 ` rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-06-22 10:10 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101151 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|[11/12 Regression] ICE at |[11 Regression] ICE at -O1 |-O1 and above on |and above on |x86_64-linux-gnu: |x86_64-linux-gnu: |verify_ssa failed since |verify_ssa failed since |r11-3705-gdae673abd37d4004 |r11-3705-gdae673abd37d4004 Known to work| |12.0 --- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Fixed on trunk sofar. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/101151] [11 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 2021-06-21 14:40 [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch ` (4 preceding siblings ...) 2021-06-22 10:10 ` [Bug tree-optimization/101151] [11 " rguenth at gcc dot gnu.org @ 2021-06-25 9:06 ` cvs-commit at gcc dot gnu.org 2021-06-25 9:07 ` rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2021-06-25 9:06 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101151 --- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Richard Biener <rguenth@gcc.gnu.org>: https://gcc.gnu.org/g:8dc3768ffb4debc559e428fd508a4e8c59586c00 commit r11-8654-g8dc3768ffb4debc559e428fd508a4e8c59586c00 Author: Richard Biener <rguenther@suse.de> Date: Tue Jun 22 10:14:02 2021 +0200 tree-optimization/101151 - fix irreducible region check for sinking The check whether two blocks are in the same irreducible region and thus post-dominance checks being unreliable was incomplete since an irreducible region can contain reducible sub-regions but if one block is in the irreducible part and one not the check still doesn't work as expected. 2021-06-22 Richard Biener <rguenther@suse.de> PR tree-optimization/101151 * tree-ssa-sink.c (statement_sink_location): Expand irreducible region check. * gcc.dg/torture/pr101151.c: New testcase. (cherry picked from commit a2ef8395fa970498985764514044e5fd00f7d5c0) ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/101151] [11 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 2021-06-21 14:40 [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch ` (5 preceding siblings ...) 2021-06-25 9:06 ` cvs-commit at gcc dot gnu.org @ 2021-06-25 9:07 ` rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-06-25 9:07 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101151 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED --- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Fixed. ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2021-06-25 9:07 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-06-21 14:40 [Bug tree-optimization/101151] New: ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch 2021-06-22 6:28 ` [Bug tree-optimization/101151] [11/12 Regression] ICE at -O1 and above on x86_64-linux-gnu: verify_ssa failed since r11-3705-gdae673abd37d4004 marxin at gcc dot gnu.org 2021-06-22 6:50 ` rguenth at gcc dot gnu.org 2021-06-22 8:13 ` rguenth at gcc dot gnu.org 2021-06-22 10:10 ` cvs-commit at gcc dot gnu.org 2021-06-22 10:10 ` [Bug tree-optimization/101151] [11 " rguenth at gcc dot gnu.org 2021-06-25 9:06 ` cvs-commit at gcc dot gnu.org 2021-06-25 9:07 ` rguenth at gcc dot gnu.org
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