https://bugs.llvm.org/show_bug.cgi?id=41261
Bug ID: 41261
Summary: inline jump addresses into a jump table
Product: new-bugs
Version: trunk
Hardware: All
OS: All
Status: NEW
Keywords: code-quality
Severity: enhancement
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
When a jump table label points to a jump its address could be just placed into
the jump table. An example:
int f1();
int f2();
int f3();
int f4();
int f5();
int foo(int i)
{
switch (i) {
case 1: return f1();
case 2: return f2();
case 3: return f3();
case 4: return f4();
case 5: return f5();
}
}
GCC does not do this optimization too, but there is an old ticket on this with
an additional info https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14721
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