Cmake compiler flags12/19/2023 ![]() ![]() -check all,noarg_temp_created Enables all runtime checks except arg_temp_created, that checks validity of function arguments when they are copied into temporary storage.-debug all Generate full debugging information.Without this option, local arrays will all go on the stack, which has been known to cause a stack overflow for large databases in PATHSAMPLE. -heap-arrays 10 Arrays known at compile time to be smaller than 10KB will be put on the stack rather than the heap.-assume byterecl Assume that the record length unformatted output is 1 byte.-132 Allow lines of up to 132 characters in fixed form source.Debug_slow: -debug all -check all,noarg_temp_created -warn unused -fp-stack-check -ftrapuv -implicitnone.Debug: -traceback -debug all -check all,noarg_temp_created -diag-disable 8290,8291 -implicitnone.All: -132 -assume byterecl -heap-arrays 10 -mcmodel=medium (only for NEWREAXFFOPTIM).-traceback Generate debugging information necessary for a runtime traceback.-Mchkstk Enables runtime checks for the available space in the stack when declaring local variables.-Mchkptr Enables runtime checks for dereferencing the NULL pointer.-Mchkfpstk Enables runtime checks of the floating point unit (FPU) stack.-gopt Same as -g, but doesn't affect optimisation level.Sets -O0 unless another -O is explicitly specified. Leave debugging symbols in machine code so a debugger can identify functions, variables and line numbers. -Mnoframe The compiler is allowed to not set up a stack frame for functions, allowing for more efficient optimisation in some cases.-Munroll The compiler will unroll loops.Note There is a level 4 too, but the performance difference is marginal. Debug_slow: -g -gopt -Mbounds -Mchkfpstk -Mchkptr -Mchkstk -traceback.Debug: -g -gopt -Mbounds -Mchkfpstk -Mchkptr -Mchkstk -traceback.All: -Mextend -mcmodel=medium (only for NEWREAXFFOPTIM).This is equivalent to putting IMPLICIT NONE everywhere there isn't already an IMPLICIT statement. -fimplicit-none No implicit typing is allowed, unless there is an explicit IMPLICIT statement.-ftrapv The compiler creates a runtime trap when a variable overflow occurs.NOTE The GCC docs recommend -Og for debugging use. There are limitations, so check the GCC docs. -Wunitialized The compiler will issue warnings if it detects that a variable is uninitialised before its value is used.NOTE The GCC documentation describes this as a deprecated alias for '-fcheck=bounds', so it may cease to work sometime. -fbounds-check Turns on runtime checking of the bounds of an array when accessing elements.-O3 Use optimisation level 3, the highest available.The flag must be used to compile/link a program whose data and. ![]()
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