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* [Bug c/97897] New: ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638
@ 2020-11-18 16:39 gscfq@t-online.de
2020-11-19 7:36 ` [Bug tree-optimization/97897] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gscfq@t-online.de @ 2020-11-18 16:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97897
Bug ID: 97897
Summary: ICE tree check: expected ssa_name, have integer_cst in
compute_optimized_partition_bases, at
tree-ssa-coalesce.c:1638
Product: gcc
Version: 11.0
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 :
(compiles with "(_Complex a)" instead)
$ cat z1.c
void h ();
void f () __attribute__ ((returns_twice));
void g (_Complex int a)
{
f ();
if (a != 0)
{
a = 0;
h ();
}
}
$ gcc-11-20201115 -c z1.c
during RTL pass: expand
z1.c: In function 'g':
z1.c:3:6: internal compiler error: tree check: expected ssa_name, have
integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638
3 | void g (_Complex int a)
| ^
0x626df8 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/tree.c:9779
0xe4bb1f tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:3314
0xe4bb1f compute_optimized_partition_bases
../../gcc/tree-ssa-coalesce.c:1638
0xe4bb1f coalesce_ssa_name(_var_map*)
../../gcc/tree-ssa-coalesce.c:1718
0xdde89b remove_ssa_form
../../gcc/tree-outof-ssa.c:1065
0xdde89b rewrite_out_of_ssa(ssaexpand*)
../../gcc/tree-outof-ssa.c:1323
0x80fa70 execute
../../gcc/cfgexpand.c:6407
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97897] ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638
2020-11-18 16:39 [Bug c/97897] New: ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638 gscfq@t-online.de
@ 2020-11-19 7:36 ` rguenth at gcc dot gnu.org
2020-11-19 8:57 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-19 7:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97897
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c |tree-optimization
Last reconfirmed| |2020-11-19
Ever confirmed|0 |1
Status|UNCONFIRMED |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine. We may not have constants in abnormal edge PHI arguments.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97897] ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638
2020-11-18 16:39 [Bug c/97897] New: ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638 gscfq@t-online.de
2020-11-19 7:36 ` [Bug tree-optimization/97897] " rguenth at gcc dot gnu.org
@ 2020-11-19 8:57 ` cvs-commit at gcc dot gnu.org
2020-11-19 9:00 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-11-19 8:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97897
--- Comment #2 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:0d8290959ecf2c5f1dd062e57782b5e91be0f8f6
commit r11-5156-g0d8290959ecf2c5f1dd062e57782b5e91be0f8f6
Author: Richard Biener <rguenther@suse.de>
Date: Thu Nov 19 09:06:50 2020 +0100
tree-optimization/97897 - complex lowering on abnormal edges
This fixes complex lowering to not put constants into abnormal
edge PHI values by making sure abnormally used SSA names are
VARYING in its propagation lattice.
2020-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/97897
* tree-complex.c (complex_propagate::visit_stmt): Make sure
abnormally used SSA names are VARYING.
(complex_propagate::visit_phi): Likewise.
* tree-ssa.c (verify_phi_args): Verify PHI arguments on abnormal
edges are SSA names.
* gcc.dg/pr97897.c: New testcase.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97897] ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638
2020-11-18 16:39 [Bug c/97897] New: ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638 gscfq@t-online.de
2020-11-19 7:36 ` [Bug tree-optimization/97897] " rguenth at gcc dot gnu.org
2020-11-19 8:57 ` cvs-commit at gcc dot gnu.org
@ 2020-11-19 9:00 ` rguenth at gcc dot gnu.org
2021-03-03 10:36 ` cvs-commit at gcc dot gnu.org
2021-03-03 10:36 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-19 9:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97897
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |11.0
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk sofar.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97897] ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638
2020-11-18 16:39 [Bug c/97897] New: ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638 gscfq@t-online.de
` (2 preceding siblings ...)
2020-11-19 9:00 ` rguenth at gcc dot gnu.org
@ 2021-03-03 10:36 ` cvs-commit at gcc dot gnu.org
2021-03-03 10:36 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-03-03 10:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97897
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:9272936ac5fac472a3690145572afa6ed19eaa8e
commit r10-9405-g9272936ac5fac472a3690145572afa6ed19eaa8e
Author: Richard Biener <rguenther@suse.de>
Date: Thu Nov 19 09:06:50 2020 +0100
tree-optimization/97897 - complex lowering on abnormal edges
This fixes complex lowering to not put constants into abnormal
edge PHI values by making sure abnormally used SSA names are
VARYING in its propagation lattice.
2020-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/97897
* tree-complex.c (complex_propagate::visit_stmt): Make sure
abnormally used SSA names are VARYING.
(complex_propagate::visit_phi): Likewise.
* gcc.dg/pr97897.c: New testcase.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97897] ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638
2020-11-18 16:39 [Bug c/97897] New: ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638 gscfq@t-online.de
` (3 preceding siblings ...)
2021-03-03 10:36 ` cvs-commit at gcc dot gnu.org
@ 2021-03-03 10:36 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-03-03 10:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97897
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |10.2.1
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed. Not planning to backport further.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2020-11-18 16:39 [Bug c/97897] New: ICE tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638 gscfq@t-online.de
2020-11-19 7:36 ` [Bug tree-optimization/97897] " rguenth at gcc dot gnu.org
2020-11-19 8:57 ` cvs-commit at gcc dot gnu.org
2020-11-19 9:00 ` rguenth at gcc dot gnu.org
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