https://llvm.org/bugs/show_bug.cgi?id=25892
Bug ID: 25892
Summary: [LIR] Misses opportunity to convert malloc + memset
zero -> calloc
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
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
float *foo(int size) {
float *fdata;
fdata = (float *) malloc(size);
if (fdata == NULL) {
fprintf(stderr, "Can't allocate data array.\n");
exit(1);
}
memset(fdata, 0, size);
return fdata;
}
We should be able to convert the malloc into a calloc and remove the memset.
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