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| author | Duncan Sands <baldrick@free.fr> | 2011-02-17 08:16:56 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2011-02-17 08:16:56 +0000 |
| commit | fe167c5a145d00a35b980993a514f9056eeefed8 (patch) | |
| tree | f6fc68efd59aa46586ac72ed0d13d786a84c15ef /lib/Target/README.txt | |
| parent | a77243300ba1a40c80c0f8417ba74bb76e7de279 (diff) | |
| download | llvm-fe167c5a145d00a35b980993a514f9056eeefed8.tar.gz llvm-fe167c5a145d00a35b980993a514f9056eeefed8.tar.bz2 llvm-fe167c5a145d00a35b980993a514f9056eeefed8.tar.xz | |
This has been implemented.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125738 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/README.txt')
| -rw-r--r-- | lib/Target/README.txt | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/lib/Target/README.txt b/lib/Target/README.txt index 1a33aa8ed8..4e14fbbb09 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -2225,16 +2225,6 @@ avoids partial register stalls in some important cases. //===---------------------------------------------------------------------===// -We should fold compares like this: - - %1266 = add nsw i32 %.84.i.i.i, 1 - %560 = add nsw i32 %556, 1 - %1267 = icmp slt i32 %1266, %560 - -to a single 'icmp slt' when the add's have a single use, since they are NSW. - -//===---------------------------------------------------------------------===// - We don't fold (icmp (add) (add)) unless the two adds only have a single use. There are a lot of cases that we're refusing to fold in (e.g.) 256.bzip2, for example: |