Bill Wendling
0b9c16295a
As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias
...
(movzx/movsx) because they give more information. Revert that part of the patch.
llvm-svn: 129498
2011-04-14 01:46:37 +00:00
Bill Wendling
d49591cf21
Have the X86 back-end emit the alias instead of what's being aliased. In most
...
cases, it's much nicer and more informative reading the alias.
llvm-svn: 129497
2011-04-14 01:11:51 +00:00
Dan Gohman
df2896d609
Eliminate more uses of llvm-as and llvm-dis.
...
llvm-svn: 81290
2009-09-08 23:54:48 +00:00
Dan Gohman
6bd4a58365
Don't use INSERT_SUBREG to model anyext operations on x86-64, as it
...
leads to partial-register definitions. To help avoid redundant
zero-extensions, also teach the h-register matching patterns that
use movzbl to match anyext as well as zext.
llvm-svn: 80099
2009-08-26 14:59:13 +00:00
