Commit Graph

4 Commits

Author SHA1 Message Date
Evan Cheng f73d7553cc Add test case for r160387
llvm-svn: 160389
2012-07-17 19:40:05 +00:00
Benjamin Kramer 5b3aa60b44 X86: Generalize the x << (y & const) optimization to also catch masks with more set bits set than 31 or 63.
llvm-svn: 148024
2012-01-12 12:41:34 +00:00
Dan Gohman 40503396da Eliminate more uses of llvm-as and llvm-dis.
llvm-svn: 81290
2009-09-08 23:54:48 +00:00
Evan Cheng cfb7f3abdf Transform (x << (y&31)) -> (x << y). This takes advantage of the fact x86 shift instructions 2nd operand (shift count) is limited to 0 to 31 (or 63 in the x86-64 case).
llvm-svn: 55558
2008-08-30 02:03:58 +00:00