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transformation implemented 

llvm-svn: 26754
This commit is contained in:
Chris Lattner 2006-03-14 06:57:34 +00:00
parent d6bde46d85
commit 30402be175
1 changed files with 0 additions and 10 deletions
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10
llvm/lib/Target/README.txt
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@ -88,16 +88,6 @@ Shrink: (setlt (loadi32 P), 0) -> (setlt (loadi8 Phi), 0)
//===---------------------------------------------------------------------===// //===---------------------------------------------------------------------===//
Reassociate is missing this:
int test(int X, int Y) {
return (X+X+Y+Y); // (X+Y) << 1;
}
it needs to turn the shifts into multiplies to get it.
//===---------------------------------------------------------------------===//
Reassociate should turn: X*X*X*X -> t=(X*X) (t*t) to eliminate a multiply. Reassociate should turn: X*X*X*X -> t=(X*X) (t*t) to eliminate a multiply.
//===---------------------------------------------------------------------===// //===---------------------------------------------------------------------===//