https://llvm.org/bugs/show_bug.cgi?id=25166
Bug ID: 25166
Summary: [Loop Idiom Recognizer] Missing basic memset support
for loops with negative stride
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: Loop Optimizer
Assignee: unassignedb...@nondot.org
Reporter: mcros...@codeaurora.org
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
GCC generates a memset for the below loop, while LLVM does not.
void test(int *arr) {
for (int i = 1023; i >= 0; --i)
arr[i] = 0;
}
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