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* [Bug target/89355] Unnecessary ENDBR
[not found] <bug-89355-4@http.gcc.gnu.org/bugzilla/>
@ 2020-03-12 11:58 ` jakub at gcc dot gnu.org
2020-04-17 22:24 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2020-03-12 11:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89355
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|9.3 |9.4
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 9.3.0 has been released, adjusting target milestone.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/89355] Unnecessary ENDBR
[not found] <bug-89355-4@http.gcc.gnu.org/bugzilla/>
2020-03-12 11:58 ` [Bug target/89355] Unnecessary ENDBR jakub at gcc dot gnu.org
@ 2020-04-17 22:24 ` cvs-commit at gcc dot gnu.org
2020-04-17 22:33 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-04-17 22:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89355
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:
https://gcc.gnu.org/g:4a745938b56da04ed01055d5bcb520dc1c760414
commit r9-8508-g4a745938b56da04ed01055d5bcb520dc1c760414
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Apr 17 15:23:27 2020 -0700
x86: Insert ENDBR if function will be called indirectly
Since constant_call_address_operand has
;; Test for a pc-relative call operand
(define_predicate "constant_call_address_operand"
(match_code "symbol_ref")
{
if (ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC
|| flag_force_indirect_call)
return false;
if (TARGET_DLLIMPORT_DECL_ATTRIBUTES && SYMBOL_REF_DLLIMPORT_P (op))
return false;
return true;
})
even if cgraph_node::get (cfun->decl)->only_called_directly_p () returns
false, the fuction may still be called indirectly. Copy the logic from
constant_call_address_operand to rest_of_insert_endbranch to insert ENDBR
at function entry if function will be called indirectly.
NB: gcc.target/i386/pr94417-2.c is updated to expect 4 ENDBRs, instead
of 2, since only GCC 10 has the fix for PR target/89355 not to insert
ENDBR after NOTE_INSN_DELETED_LABEL.
gcc/
Backport from master
PR target/94417
* config/i386/i386.c (rest_of_insert_endbranch): Insert ENDBR at
function entry if function will be called indirectly.
gcc/testsuite/
Backport from master
PR target/94417
* gcc.target/i386/pr94417-1.c: New test.
* gcc.target/i386/pr94417-2.c: Likewise.
* gcc.target/i386/pr94417-3.c: Likewise.
(cherry picked from commit c5f379653964a1d2c7037b2de3e947a48370a198)
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/89355] Unnecessary ENDBR
[not found] <bug-89355-4@http.gcc.gnu.org/bugzilla/>
2020-03-12 11:58 ` [Bug target/89355] Unnecessary ENDBR jakub at gcc dot gnu.org
2020-04-17 22:24 ` cvs-commit at gcc dot gnu.org
@ 2020-04-17 22:33 ` cvs-commit at gcc dot gnu.org
2021-06-01 8:13 ` rguenth at gcc dot gnu.org
2022-05-27 8:26 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-04-17 22:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89355
--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-8 branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:
https://gcc.gnu.org/g:99ddb11c0840f68466a14fd583dd4d3a558d4961
commit r8-10186-g99ddb11c0840f68466a14fd583dd4d3a558d4961
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Apr 17 15:23:27 2020 -0700
x86: Insert ENDBR if function will be called indirectly
Since constant_call_address_operand has
;; Test for a pc-relative call operand
(define_predicate "constant_call_address_operand"
(match_code "symbol_ref")
{
if (ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC
|| flag_force_indirect_call)
return false;
if (TARGET_DLLIMPORT_DECL_ATTRIBUTES && SYMBOL_REF_DLLIMPORT_P (op))
return false;
return true;
})
even if cgraph_node::get (cfun->decl)->only_called_directly_p () returns
false, the fuction may still be called indirectly. Copy the logic from
constant_call_address_operand to rest_of_insert_endbranch to insert ENDBR
at function entry if function will be called indirectly.
NB: gcc.target/i386/pr94417-2.c is updated to expect 4 ENDBRs, instead
of 2, since only GCC 10 has the fix for PR target/89355 not to insert
ENDBR after NOTE_INSN_DELETED_LABEL.
gcc/
Backport from master
PR target/94417
* config/i386/i386.c (rest_of_insert_endbranch): Insert ENDBR at
function entry if function will be called indirectly.
gcc/testsuite/
Backport from master
PR target/94417
* gcc.target/i386/pr94417-1.c: New test.
* gcc.target/i386/pr94417-2.c: Likewise.
* gcc.target/i386/pr94417-3.c: Likewise.
(cherry picked from commit c5f379653964a1d2c7037b2de3e947a48370a198)
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/89355] Unnecessary ENDBR
[not found] <bug-89355-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2020-04-17 22:33 ` cvs-commit at gcc dot gnu.org
@ 2021-06-01 8:13 ` rguenth at gcc dot gnu.org
2022-05-27 8:26 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-06-01 8:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89355
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|9.4 |9.5
--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 9.4 is being released, retargeting bugs to GCC 9.5.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/89355] Unnecessary ENDBR
[not found] <bug-89355-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2021-06-01 8:13 ` rguenth at gcc dot gnu.org
@ 2022-05-27 8:26 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-05-27 8:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89355
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|9.5 |8.4
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed in GCC 8.4.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-05-27 8:26 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-89355-4@http.gcc.gnu.org/bugzilla/>
2020-03-12 11:58 ` [Bug target/89355] Unnecessary ENDBR jakub at gcc dot gnu.org
2020-04-17 22:24 ` cvs-commit at gcc dot gnu.org
2020-04-17 22:33 ` cvs-commit at gcc dot gnu.org
2021-06-01 8:13 ` rguenth at gcc dot gnu.org
2022-05-27 8:26 ` rguenth at gcc dot gnu.org
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