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27 #include "B3Effects.h"
31 #include <wtf/CommaPrinter.h>
32 #include <wtf/DataLog.h>
34 namespace JSC { namespace B3 {
38 // These helpers cascade in such a way that after the helper for terminal, we don't have to worry
39 // about terminal again, since the terminal case considers all ways that a terminal may interfere
40 // with something else. And after the exit sideways case, we don't have to worry about either
41 // exitsSideways or terminal. And so on...
43 bool interferesWithTerminal(const Effects& terminal, const Effects& other)
45 if (!terminal.terminal)
47 return other.terminal || other.controlDependent || other.writesLocalState || other.writes;
50 bool interferesWithExitSideways(const Effects& exitsSideways, const Effects& other)
52 if (!exitsSideways.exitsSideways)
54 return other.controlDependent || other.writes;
57 bool interferesWithWritesLocalState(const Effects& writesLocalState, const Effects& other)
59 if (!writesLocalState.writesLocalState)
61 return other.writesLocalState || other.readsLocalState;
64 } // anonymous namespace
66 bool Effects::interferes(const Effects& other) const
68 if (interferesWithTerminal(*this, other) || interferesWithTerminal(other, *this))
70 if (interferesWithExitSideways(*this, other) || interferesWithExitSideways(other, *this))
72 if (interferesWithWritesLocalState(*this, other) || interferesWithWritesLocalState(other, *this))
74 return writes.overlaps(other.writes)
75 || writes.overlaps(other.reads)
76 || reads.overlaps(other.writes);
79 void Effects::dump(PrintStream& out) const
81 CommaPrinter comma("|");
83 out.print(comma, "Terminal");
85 out.print(comma, "ExitsSideways");
87 out.print(comma, "ControlDependent");
89 out.print(comma, "WritesLocalState");
91 out.print(comma, "ReadsLocalState");
93 out.print(comma, "Writes:", writes);
95 out.print(comma, "Reads:", reads);
98 } } // namespace JSC::B3
100 #endif // ENABLE(B3_JIT)