diff options
| -rw-r--r-- | lib/Target/X86/README.txt | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/lib/Target/X86/README.txt b/lib/Target/X86/README.txt index fe63e9e7dc..46ef8b2225 100644 --- a/lib/Target/X86/README.txt +++ b/lib/Target/X86/README.txt @@ -665,20 +665,6 @@ The add\sub pair is really unneeded here. //===---------------------------------------------------------------------===// -We generate really bad code in some cases due to lowering SETCC/SELECT at -legalize time, which prevents the post-legalize dag combine pass from -understanding the code. As a silly example, this prevents us from folding -stuff like this: - -bool %test(ulong %x) { - %tmp = setlt ulong %x, 4294967296 - ret bool %tmp -} - -into x.h == 0 - -//===---------------------------------------------------------------------===// - We currently compile sign_extend_inreg into two shifts: long foo(long X) { |