[comp.compilers] Reverse Compilers?

ram@Sun.COM (10/27/87)

Vectorizing & Optimizing compilers are dime a dozen these days, but
debuggers for these compilers with optimizations turned on are not
available (at least to my knowledge).  It seems that one has to
"reverse-compile" the optimized code for source level debuggers.  Are
there any reverse-compilers?  Such compilers would also be helpful as
a tool to aid programmers in writing optimal code.
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