[Bug bootstrap/80779] MPX bootstrap does not work on real hardware supporting that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80779 --- Comment #2 from Alexander Ivchenko --- I made some progress a while back with that, mostly by adding __attribute__((bnd_legacy)) just as in Martin's patches. I don't like that approach though, as it does not look natural. The two thinks that I found are: 1) There are cases where we have union at the end of the struct, where one field of the union is a flexible array. I marked those fields of the struct with corresponding attribute, but, probably, more natural would be to add that by default when "-fchkp-flexible-struct-trailing-arrays" option is used. We have a lot of false positives because of that 2) I found a real bounds violation :) In ipa-chkp.c in chkp_map_attr_arg_indexes there is a "idx = indexes[idx - 1] + 1;" in the loop. Here, "idx" may be zero
[Bug middle-end/77383] -fcheck-pointer-bounds -mmpx ICE with VLA struct return type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77383 aivchenk at gcc dot gnu.org changed: What|Removed |Added CC||gerhard.steinmetz.fortran@t ||-online.de --- Comment #5 from aivchenk at gcc dot gnu.org --- *** Bug 79630 has been marked as a duplicate of this bug. ***
[Bug target/79630] ICE in make_decl_rtl, at varasm.c:1311
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79630
aivchenk at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
CC||aivchenk at gcc dot gnu.org
Resolution|--- |DUPLICATE
--- Comment #1 from aivchenk at gcc dot gnu.org ---
All of the mentioned testcases are reduced to this:
> cat nested-func-9.c
foo_n;
fn1() {
struct {
int a[foo_n]
} fn2() {
}
fn2();
}
> cat pr8081.c
a;
main() {
typedef struct { char val[a] } block;
block retframe_block() {}
retframe_block();
}
> cat pr66817.c
a;
main() {
typedef struct { char val[a] } block;
block retframe_block() {}
retframe_block();
}
which is essentially pr77383
*** This bug has been marked as a duplicate of bug 77383 ***
[Bug other/65530] [meta-bug] -mmpx -fcheck-pointer-bounds failures
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65530 Bug 65530 depends on bug 79630, which changed state. Bug 79630 Summary: ICE in make_decl_rtl, at varasm.c:1311 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79630 What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE
[Bug tree-optimization/80880] New: internal compiler error: in ix86_expand_builtin
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80880
Bug ID: 80880
Summary: internal compiler error: in ix86_expand_builtin
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: aivchenk at gcc dot gnu.org
Target Milestone: ---
While fixing bootstrap for MPX I faced this new ICE:
> cat gensupport.c
int *fn1() {
int *r = fn1();
if (r == __null)
return r;
}
> g++ gensupport.c -O1 -mmpx -fcheck-pointer-bounds
And the guilty revision is:
commit 380ca246b31875b432a536e54102959888d546fa
Author: rguenth
Date: Tue Apr 25 09:26:37 2017 +
2017-04-25 Richard Biener
PR tree-optimization/79201
* tree-ssa-sink.c (statement_sink_location): Handle calls.
* gcc.dg/tree-ssa/ssa-sink-16.c: New testcase.
* gcc.target/i386/pr22152.c: Disable sinking.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@247159
138bc75d-0d04-0410-961f-82ee72b054a4
[Bug middle-end/79990] [CHKP] ICE in expand_expr_addr_expr_1, at expr.c:7790
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79990 Alexander Ivchenko changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC||aivchenk at gcc dot gnu.org Resolution|--- |FIXED --- Comment #3 from Alexander Ivchenko --- Fixed with r249015: Author: aivchenk Date: Thu Jun 8 14:07:21 2017 + gcc/ChangeLog: 2017-05-09 Alexander Ivchenko * tree-chkp.c (chkp_get_hard_register_var_fake_base_address): New function. (chkp_get_hard_register_fake_addr_expr): Ditto. (chkp_build_addr_expr): Add check for hard reg case. (chkp_parse_array_and_component_ref): Ditto. (chkp_find_bounds_1): Ditto. (chkp_process_stmt): Don't generate bounds store for hard reg case.
[Bug other/65530] [meta-bug] -mmpx -fcheck-pointer-bounds failures
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65530 Bug 65530 depends on bug 79990, which changed state. Bug 79990 Summary: [CHKP] ICE in expand_expr_addr_expr_1, at expr.c:7790 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79990 What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED
[Bug middle-end/79988] [7/8 Regression][CHKP] ICE in tree check: accessed operand 5 of call_expr with 4 operands in ix86_expand_builtin, at config/i386/i386.c:36851
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79988 --- Comment #4 from Alexander Ivchenko --- Author: aivchenk Date: Thu Jun 8 16:05:59 2017 New Revision: 249023 URL: https://gcc.gnu.org/viewcvs?rev=249023&root=gcc&view=rev Log: 2017-06-08 Alexander Ivchenko PR middle-end/79988 * tree-chkp.c (chkp_gimple_call_builtin_p): Remove gimple_call_builtin_p call. 017-06-08 Alexander Ivchenko PR middle-end/79988 * gcc.target/i386/mpx/pr79988.c: New test. Added: trunk/gcc/testsuite/gcc.target/i386/mpx/pr79988.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-chkp.c
[Bug middle-end/79988] [7/8 Regression][CHKP] ICE in tree check: accessed operand 5 of call_expr with 4 operands in ix86_expand_builtin, at config/i386/i386.c:36851
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79988 Alexander Ivchenko changed: What|Removed |Added Status|NEW |RESOLVED CC||aivchenk at gcc dot gnu.org Resolution|--- |FIXED --- Comment #5 from Alexander Ivchenko --- Fixed on trunk
[Bug other/65530] [meta-bug] -mmpx -fcheck-pointer-bounds failures
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65530 Bug 65530 depends on bug 79988, which changed state. Bug 79988 Summary: [7/8 Regression][CHKP] ICE in tree check: accessed operand 5 of call_expr with 4 operands in ix86_expand_builtin, at config/i386/i386.c:36851 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79988 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED
