> It was on linkonce sections. The attached script improves on it. > > Unfortunately, those sections are unpredictable, since they depend on the > compiler's mood in inlining or not inlining some things. For example, QList is > mostly unchanged in Qt 5, but this shows up: >
you may want to experiment a bit with `gcc --pram=large-function-growth=X` that can change the mood of gcc quite a bit. This message has no opinion or intention in this topic other than let know this parameters exist and can be used for experimetation. gcc --help=param [...] max-inline-insns-single The maximum number of instructions in a single function eligible for inlining max-inline-insns-auto The maximum number of instructions when automatically inlining max-inline-insns-recursive The maximum number of instructions inline function can grow to via recursive inlining max-inline-insns-recursive-auto The maximum number of instructions non-inline function can grow to via recursive inlining max-inline-recursive-depth The maximum depth of recursive inlining for inline functions max-inline-recursive-depth-auto The maximum depth of recursive inlining for non-inline functions min-inline-recursive-probability Inline recursively only when the probability of call being executed exceeds the parameter max-early-inliner-iterations The maximum number of nested indirect inlining performed by early inliner comdat-sharing-probability Probability that COMDAT function will be shared with different compilatoin unit partial-inlining-entry-probability Maximum probability of the entry BB of split region (in percent relative to entry BB of the function) to make partial inlining happen max-variable-expansions-in-unroller If -fvariable-expansion-in-unroller is used, the maximum number of times that an individual variable will be expanded during loop unrolling [...] inline-unit-growth How much can given compilation unit grow because of the inlining (in percent) ipcp-unit-growth How much can given compilation unit grow because of the interprocedural constant propagation (in percent) early-inlining-insns Maximal estimated growth of function body caused by early inlining of single call large-stack-frame The size of stack frame to be considered large large-stack-frame-growth Maximal stack frame growth due to inlining (in percent) [...] _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development