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| author | Chris Lattner <sabre@nondot.org> | 2006-12-08 02:01:32 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-12-08 02:01:32 +0000 |
| commit | f9bae438aa5dce85685de670702250bb930dfc49 (patch) | |
| tree | 10b24a99c8597e3d604b919e65e017a69e1c291b | |
| parent | 3b14fbe300b96c353a9abfadf481b64324f17375 (diff) | |
| download | llvm-f9bae438aa5dce85685de670702250bb930dfc49.tar.gz llvm-f9bae438aa5dce85685de670702250bb930dfc49.tar.bz2 llvm-f9bae438aa5dce85685de670702250bb930dfc49.tar.xz | |
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32347 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/README.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/README.txt b/lib/Target/README.txt index 422d021655..c04e06fbfe 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -303,6 +303,16 @@ unsigned int swap_32(unsigned int v) { return v; } +Nor is this (yes, it really is bswap): + +unsigned long reverse(unsigned v) { + unsigned t; + t = v ^ ((v << 16) | (v >> 16)); + t &= ~0xff0000; + v = (v << 24) | (v >> 8); + return v ^ (t >> 8); +} + //===---------------------------------------------------------------------===// These should turn into single 16-bit (unaligned?) loads on little/big endian |