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| author | Nate Begeman <natebegeman@mac.com> | 2006-01-14 03:14:10 +0000 |
|---|---|---|
| committer | Nate Begeman <natebegeman@mac.com> | 2006-01-14 03:14:10 +0000 |
| commit | d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1 (patch) | |
| tree | b2f310c94eb32a8be570abd8242cbbd5a128253d /test/CodeGen/X86/bswap.ll | |
| parent | b69c190c26da6d83391a4956ed2dfc0fe45b5bfa (diff) | |
| download | llvm-d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1.tar.gz llvm-d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1.tar.bz2 llvm-d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1.tar.xz | |
bswap implementation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25312 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/bswap.ll')
| -rw-r--r-- | test/CodeGen/X86/bswap.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/X86/bswap.ll b/test/CodeGen/X86/bswap.ll new file mode 100644 index 0000000000..d48d26568c --- /dev/null +++ b/test/CodeGen/X86/bswap.ll @@ -0,0 +1,23 @@ +; bswap should be constant folded when it is passed a constant argument + +; RUN: llvm-as < %s | llc -march=x86 -enable-x86-dag-isel | grep bswapl | wc -l | grep 3 && +; RUN: llvm-as < %s | llc -march=x86 -enable-x86-dag-isel | grep rolw | wc -l | grep 1 + +declare ushort %llvm.bswap.i16(ushort) +declare uint %llvm.bswap.i32(uint) +declare ulong %llvm.bswap.i64(ulong) + +ushort %W(ushort %A) { + %Z = call ushort %llvm.bswap.i16(ushort %A) + ret ushort %Z +} + +uint %X(uint %A) { + %Z = call uint %llvm.bswap.i32(uint %A) + ret uint %Z +} + +ulong %Y(ulong %A) { + %Z = call ulong %llvm.bswap.i64(ulong %A) + ret ulong %Z +} |