https://llvm.org/bugs/show_bug.cgi?id=28661
Bug ID: 28661
Summary: [AVX512] incorrect code for boolean expression at -O0.
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: babo...@gmail.com
CC: elena.demikhov...@intel.com, igor.bre...@intel.com,
llvm-bugs@lists.llvm.org, vsevolod.livins...@frtk.ru
Classification: Unclassified
Created attachment 16791
--> https://llvm.org/bugs/attachment.cgi?id=16791&action=edit
reproducer
Simple test case triggers incorrect code generation on AVX512 at -O0.
#include <stdio.h>
int main() {
bool b = true;
bool res = ((bool) (!(! b))) && true;
printf("%d (expected 1)\n", res);
return 0;
}
> clang++ -O0 knl_bool_bug.cpp -march=knl
> sde -knl -- ./a.out
0 (expected 1)
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