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| -rw-r--r-- | lib/Target/README.txt | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/lib/Target/README.txt b/lib/Target/README.txt index cf240062fe..86c231bf31 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -162,24 +162,6 @@ target! //===---------------------------------------------------------------------===// -Consider this: - -unsigned short swap_16(unsigned short v) { return (v>>8) | (v<<8); } - -Compiled with the ppc backend: - -_swap_16: - slwi r2, r3, 8 - srwi r3, r3, 8 - or r2, r3, r2 - rlwinm r3, r2, 0, 16, 31 - blr - -The rlwinm (an and by 65535) is dead. The dag combiner should propagate bits -better than that to see this. - -//===---------------------------------------------------------------------===// - Add support for conditional increments, and other related patterns. Instead of: |