http://llvm.org/bugs/show_bug.cgi?id=10103
Summary: enum type translation functions generate a lot of code
Product: libraries
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
The following code compiles to a jump table instead of a simpler version that
uses the fact that the enum values are the same:
enum bar {
MROUND, MSQUARE, MBUTT, MTRI, MERROR
};
enum foo { FROUND, FSQUARE, FBUTT, FTRI, FERROR} ;
enum foo t(enum bar m) {
switch (m) {
case MROUND:
return FROUND;
case MSQUARE:
return FSQUARE;
case MBUTT:
return FBUTT;
case MTRI:
return FTRI;
default:
case MERROR:
return FERROR;
}
}
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