Commits · d8509424a404906a39e6ba7ba17eb58e22ff191d · Roger Ferrer / llvm-epi-0.8

Jan 10, 2010
- change the preferred canonical form for a sign extension to be · d8509424
  Chris Lattner authored Jan 10, 2010
```
lshr+ashr instead of trunc+sext.  We want to avoid type 
conversions whenever possible, it is easier to codegen expressions
without truncates and extensions.

llvm-svn: 93107
```
  d8509424
- fix indentation of switch statements, no functionality change. · 2b459fe7
  Chris Lattner authored Jan 10, 2010
```
llvm-svn: 93106
```
  2b459fe7
Jan 08, 2010
- teach instcombine to delete sign extending shift pairs (sra(shl X, C), C) when · a1e223ea
  Chris Lattner authored Jan 08, 2010
```
the input is already sign extended.

llvm-svn: 93019
```
  a1e223ea
Jan 05, 2010
- split instcombine of shifts out to its own file. · dc67e134
  Chris Lattner authored Jan 05, 2010
```
llvm-svn: 92709
```
  dc67e134