It didn't fix the problem.  I linked the compiler with the runtime with the
volatile workaround and then compiled the test case.  It compiled fine,
but printed -Infinity instead of 0 when executed (it is supposed to print 0
because angle: REAL_64 = 0.0.  

I had already modified the C code for {REAL_VALUE_I}.generate to print
out the values of positive and negative infinity and NaN.  With this latest
runtime, the output is

eif_real_64_negative_infinity is inf
eif_real_64_positive is inf
eif_real_64_nan is inf

Previously, all of these values were 0.000000.