MSVC 2013 crasher

crash.c

// Build with "cl -O2 /fp:fast crash.c"

#include <stdio.h>
#include <stdlib.h>

#define IMIN(a,b) (float)(a>b?a:b)

struct TonalityAnalysis {
	int count;
	float std[4];
};

int main() {
	int i;

	struct TonalityAnalysis *tonal = malloc(sizeof(struct TonalityAnalysis));
	tonal->count = 6;
	for (i=0;i<4;i++)
		tonal->std[i]=(float)i;

	printf("tonal = %p\n", tonal);
	printf("tonal->std = %p\n", &tonal->std[0]);

	float alpha = 1.f/IMIN(20, 1+tonal->count);

	float features[4];
	for (i=0;i<4;i++)
		features[i]=(float)i;

	if (tonal->count > 6) {
		for (i=0;i<4;i++)
			tonal->std[i] = (1-alpha)*tonal->std[i] + alpha*features[i]*features[i];
	}
	for (i=0;i<4;i++)
		features[i] = (float)sqrt(tonal->std[i]);

	for (i=0;i<4;i++)
		printf("%.2f\n", features[i]);
	
	return 0;
}