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* [Bug rtl-optimization/88403] [Mips,AArch64] The gcse and division/mod by 1000 prevents if-conversion
[not found] <bug-88403-4@http.gcc.gnu.org/bugzilla/>
@ 2023-06-02 4:42 ` pinskia at gcc dot gnu.org
2023-06-02 4:44 ` [Bug rtl-optimization/88403] " pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-06-02 4:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88403
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2023-06-02
Severity|normal |enhancement
Ever confirmed|0 |1
Summary|[Mips,AArch64] The gcse |[Mips,AArch64] The gcse and
|prevents if-conversion |division/mod by 1000
| |prevents if-conversion
Status|UNCONFIRMED |NEW
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
GCSE is doing the right thing, just ifcvt can't handle this currently.
Here is a reduced testcase:
```
int f(int a, int b)
{
if (a % 10000 > 10000/2)
a+= 10000/2;
return a / 10000;
}
```
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug rtl-optimization/88403] The gcse and division/mod by 1000 prevents if-conversion
[not found] <bug-88403-4@http.gcc.gnu.org/bugzilla/>
2023-06-02 4:42 ` [Bug rtl-optimization/88403] [Mips,AArch64] The gcse and division/mod by 1000 prevents if-conversion pinskia at gcc dot gnu.org
@ 2023-06-02 4:44 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-06-02 4:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88403
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|mips, aarch64 |mips, aarch64 x86_64
Summary|[Mips,AArch64] The gcse and |The gcse and division/mod
|division/mod by 1000 |by 1000 prevents
|prevents if-conversion |if-conversion
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
With my reduced testcase, x86_64 has the same issue too.
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-88403-4@http.gcc.gnu.org/bugzilla/>
2023-06-02 4:42 ` [Bug rtl-optimization/88403] [Mips,AArch64] The gcse and division/mod by 1000 prevents if-conversion pinskia at gcc dot gnu.org
2023-06-02 4:44 ` [Bug rtl-optimization/88403] " pinskia at gcc dot gnu.org
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