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From: "jwzeng at nuaa dot edu.cn" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/110410] [14 Regression] Different results
 between -O0 and -O2
Date: Mon, 26 Jun 2023 12:32:50 +0000
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X-Bugzilla-Component: tree-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110410

--- Comment #3 from Jw Zeng <jwzeng at nuaa dot edu.cn> ---
(In reply to Richard Biener from comment #2)
> phi-opt again?

Link to the Compiler Explorer:https://godbolt.org/z/EeEqMGnWo

I reduced the code again, I hope it helps. The reduced code is as follows:

#include <stdio.h>

int var_1 =3D 1;
int var_2 =3D 0;
unsigned short var_3 =3D 7472;
int var_4 =3D 518868156U;
unsigned var_5;
#define min(a, b) ((a) < (b) ? (a) : (b))

int main() {
    var_5 =3D min(var_1 ? var_3 >> (var_4 - 518868145U) : var_2, 1);
    printf("%d\n", var_5);
    return 0;
}=