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| -rw-r--r-- | lib/Target/README.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/README.txt b/lib/Target/README.txt index 4affd7c084..1ab1f16c71 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -79,3 +79,10 @@ int f(unsigned x) { http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25600 http://gcc.gnu.org/ml/gcc-patches/2006-02/msg01492.html +//===---------------------------------------------------------------------===// + +We should reassociate: +int f(int a, int b){ return a * a + 2 * a * b + b * b; } +into: +int f(int a, int b) { return a * (a + 2 * b) + b * b; } +to eliminate a multiply. |