r102300 breaks Obj-C codegen on Darwin x86

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1

After commit 102300, any obj-c software compiled with clang crashes at launch time with the following stack trace.
Reverting this specific commit fix the issue.

2

I managed to build a reduced test case:

================== foo.m ==================

#include <Foundation/Foundation.h>

@interface BaseNode : NSObject <NSCoding, NSCopying> { }

@end

@implementation BaseNode

@end

int main(int argc, char **argv) {
return 0;
}

3

Sending to Chris explicitly since he checked it in :slight_smile:

-eric

4

Thanks for the head's up. It looks like metadata is getting overaligned, making the runtime cranky. I'll revert it and fix the PR another way, thanks again!

-Chris