Compiling x86 code

Jeff Epler
Fri Nov 20 03:38:00 GMT 2015

These flags are documented as controlling the use of push instructions on x86 and x86_64 targets:

     Use PUSH operations to store outgoing parameters.  This method is
     shorter and usually equally fast as method using SUB/MOV operations
     and is enabled by default.  In some cases disabling it may improve
     performance because of improved scheduling and reduced


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