Removed Expected Compilation Error

[ps-19]

Summary

As given here , https://github.com/llvm/llvm-project/blob/main/llvm/lib/Transforms/Scalar/AlignmentFromAssumptions.cpp#L114

abs() function is defined under cstdlib header file which is missing.

Name: Priyansh Singh
Email: [e-mail]

[aaron.ballman]

I believe this header is already pulled in transitively; I'm not aware of any builds that are currently broken. Do you have more details on why this is needed?

[ps-19]

I too have a doubt that cstdlib may have been added through some another header file, but i was not sure about it.

[aaron.ballman]

In D123384#3440730, @ps-19 wrote:

I too have a doubt that cstdlib may have been added through some another header file, but i was not sure about it.

Then I would recommend abandoning this patch. This sort of change is great if it's solving an issue, but otherwise doesn't add much value because it's not really fixing anything.

llvm/lib/Transforms/Scalar/AlignmentFromAssumptions.cpp

 #include "llvm/IR/Dominators.h"
 #include "llvm/IR/Instruction.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Transforms/Scalar.h"
+#include <cstdlib>
 
 #define AA_NAME "alignment-from-assumptions"
 #define DEBUG_TYPE AA_NAME
 using namespace llvm;
 
 STATISTIC(NumLoadAlignChanged,
   "Number of loads changed by alignment assumptions");
 STATISTIC(NumStoreAlignChanged,