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* [Bug c/114239] New: ice: error: definition in block does not dominate use in block
@ 2024-03-05 13:24 dcb314 at hotmail dot com
2024-03-05 13:31 ` [Bug tree-optimization/114239] " sjames at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: dcb314 at hotmail dot com @ 2024-03-05 13:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114239
Bug ID: 114239
Summary: ice: error: definition in block does not dominate use
in block
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
For this C code:
int ip4_getbit_a, ip4_getbit_pos, ip4_clrbit_pos;
void ip4_clrbit(int *a) { *a &= ip4_clrbit_pos; }
typedef struct {
char pxlen;
int prefix
} net_addr_ip4;
void fib_get_chain();
int trie_match_longest_ip4();
int trie_match_next_longest_ip4(net_addr_ip4 *n) {
int __trans_tmp_1;
while (n->pxlen) {
n->pxlen--;
ip4_clrbit(&n->prefix);
__trans_tmp_1 = ip4_getbit_a >> ip4_getbit_pos;
if (__trans_tmp_1)
return 1;
}
return 0;
}
void net_roa_check_ip4_trie_tab() {
net_addr_ip4 px0;
for (int _n = trie_match_longest_ip4(&px0); _n;
_n = trie_match_next_longest_ip4(&px0))
fib_get_chain();
}
on x86_64, does this:
$ ../results/bin/gcc -c -O3 -march=znver3 -w ~/cvise/bug1021.c
/home/dcb38/cvise/bug1021.c: In function ‘net_roa_check_ip4_trie_tab’:
/home/dcb38/cvise/bug1021.c:20:6: error: definition in block 19 does not
dominate use in block 14
20 | void net_roa_check_ip4_trie_tab() {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
for SSA_NAME: _117 in statement:
px0__lsm.22_47 = PHI <_117(14), _117(19)>
PHI argument
_117
for PHI node
px0__lsm.22_47 = PHI <_117(14), _117(19)>
during GIMPLE pass: vect
/home/dcb38/cvise/bug1021.c:20:6: internal compiler error: verify_ssa failed
The bug first seems to occur sometime between g:1e74ce8983fd4926
and g:71244316cf714725, which is 42 commits.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/114239] ice: error: definition in block does not dominate use in block
2024-03-05 13:24 [Bug c/114239] New: ice: error: definition in block does not dominate use in block dcb314 at hotmail dot com
@ 2024-03-05 13:31 ` sjames at gcc dot gnu.org
2024-03-05 15:23 ` [Bug tree-optimization/114239] [14 regression] " rguenth at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: sjames at gcc dot gnu.org @ 2024-03-05 13:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114239
--- Comment #1 from Sam James <sjames at gcc dot gnu.org> ---
The testcase is the same as in PR113555 - so should've added to test suite I
suppose. Indeed ICEs on trunk.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/114239] [14 regression] ice: error: definition in block does not dominate use in block
2024-03-05 13:24 [Bug c/114239] New: ice: error: definition in block does not dominate use in block dcb314 at hotmail dot com
2024-03-05 13:31 ` [Bug tree-optimization/114239] " sjames at gcc dot gnu.org
@ 2024-03-05 15:23 ` rguenth at gcc dot gnu.org
2024-03-06 12:06 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-03-05 15:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114239
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Priority|P3 |P1
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Target Milestone|--- |14.0
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2024-03-05
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. This is the peeled early exit reduction epilog case. I will have a
look tomorrow.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/114239] [14 regression] ice: error: definition in block does not dominate use in block
2024-03-05 13:24 [Bug c/114239] New: ice: error: definition in block does not dominate use in block dcb314 at hotmail dot com
2024-03-05 13:31 ` [Bug tree-optimization/114239] " sjames at gcc dot gnu.org
2024-03-05 15:23 ` [Bug tree-optimization/114239] [14 regression] " rguenth at gcc dot gnu.org
@ 2024-03-06 12:06 ` cvs-commit at gcc dot gnu.org
2024-03-06 12:06 ` rguenth at gcc dot gnu.org
2024-03-06 12:06 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-03-06 12:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114239
--- Comment #3 from GCC 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:89c443a7e9a0780a52a698fb02d4f5173e025918
commit r14-9335-g89c443a7e9a0780a52a698fb02d4f5173e025918
Author: Richard Biener <rguenther@suse.de>
Date: Wed Mar 6 10:31:02 2024 +0100
tree-optimization/114239 - rework reduction epilogue driving
The following reworks vectorizable_live_operation to pass the
live stmt to vect_create_epilog_for_reduction also for early breaks
and a peeled main exit. This is to be able to figure the scalar
definition to replace. This reverts the PR114192 fix as it is
subsumed by this cleanup.
PR tree-optimization/114239
* tree-vect-loop.cc (vect_get_vect_def): Remove.
(vect_create_epilog_for_reduction): The passed in stmt_info
should now be the live stmt that produces the scalar reduction
result. Revert PR114192 fix. Base reduction info off
info_for_reduction. Remove special handling of
early-break/peeled, restore original vector def gathering.
Make sure to pick the correct exit PHIs.
(vectorizable_live_operation): Pass in the proper stmt_info
for early break exits.
* gcc.dg/vect/vect-early-break_122-pr114239.c: New testcase.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/114239] [14 regression] ice: error: definition in block does not dominate use in block
2024-03-05 13:24 [Bug c/114239] New: ice: error: definition in block does not dominate use in block dcb314 at hotmail dot com
` (2 preceding siblings ...)
2024-03-06 12:06 ` cvs-commit at gcc dot gnu.org
@ 2024-03-06 12:06 ` rguenth at gcc dot gnu.org
2024-03-06 12:06 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-03-06 12:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114239
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/114239] [14 regression] ice: error: definition in block does not dominate use in block
2024-03-05 13:24 [Bug c/114239] New: ice: error: definition in block does not dominate use in block dcb314 at hotmail dot com
` (3 preceding siblings ...)
2024-03-06 12:06 ` rguenth at gcc dot gnu.org
@ 2024-03-06 12:06 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-03-06 12:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114239
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rsandifo at gcc dot gnu.org
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
*** Bug 114234 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2024-03-06 12:06 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2024-03-05 13:24 [Bug c/114239] New: ice: error: definition in block does not dominate use in block dcb314 at hotmail dot com
2024-03-05 13:31 ` [Bug tree-optimization/114239] " sjames at gcc dot gnu.org
2024-03-05 15:23 ` [Bug tree-optimization/114239] [14 regression] " rguenth at gcc dot gnu.org
2024-03-06 12:06 ` cvs-commit at gcc dot gnu.org
2024-03-06 12:06 ` rguenth at gcc dot gnu.org
2024-03-06 12:06 ` rguenth at gcc dot gnu.org
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