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* [Bug tree-optimization/100857] New: Simple common code sinking is not performed
@ 2021-06-01 15:14 nok.raven at gmail dot com
2021-06-02 7:58 ` [Bug tree-optimization/100857] " rguenth at gcc dot gnu.org
2021-06-03 5:42 ` pinskia at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: nok.raven at gmail dot com @ 2021-06-01 15:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100857
Bug ID: 100857
Summary: Simple common code sinking is not performed
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: nok.raven at gmail dot com
Target Milestone: ---
void bar(int);
void foo(bool f)
{
if (f) {
bar(1);
}
else {
bar(2);
}
}
; GCC
foo(bool):
test dil, dil
je .L2
mov edi, 1
jmp bar(int)
.L2:
mov edi, 2
jmp bar(int)
; Clang
foo(bool):
mov eax, 2
sub eax, edi
mov edi, eax
jmp bar(int)
https://godbolt.org/z/4oEPY4ncb
^ permalink raw reply [flat|nested] 3+ messages in thread* [Bug tree-optimization/100857] Simple common code sinking is not performed 2021-06-01 15:14 [Bug tree-optimization/100857] New: Simple common code sinking is not performed nok.raven at gmail dot com @ 2021-06-02 7:58 ` rguenth at gcc dot gnu.org 2021-06-03 5:42 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 3+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-06-02 7:58 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100857 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2021-06-02 Ever confirmed|0 |1 Status|UNCONFIRMED |NEW --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- There's a duplicate of this PR. sink_common_stores_to_bb could be quite easily enhanced to perform the desired transform on such simple testcases. ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/100857] Simple common code sinking is not performed 2021-06-01 15:14 [Bug tree-optimization/100857] New: Simple common code sinking is not performed nok.raven at gmail dot com 2021-06-02 7:58 ` [Bug tree-optimization/100857] " rguenth at gcc dot gnu.org @ 2021-06-03 5:42 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 3+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-06-03 5:42 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100857 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |DUPLICATE --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Richard Biener from comment #1) > There's a duplicate of this PR. sink_common_stores_to_bb could be quite > easily enhanced to perform the desired transform on such simple testcases. PR 13563. *** This bug has been marked as a duplicate of bug 13563 *** ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-06-03 5:42 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-06-01 15:14 [Bug tree-optimization/100857] New: Simple common code sinking is not performed nok.raven at gmail dot com 2021-06-02 7:58 ` [Bug tree-optimization/100857] " rguenth at gcc dot gnu.org 2021-06-03 5:42 ` pinskia at gcc dot gnu.org
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