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author | Chris Lattner <sabre@nondot.org> | 2006-03-28 18:56:23 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2006-03-28 18:56:23 +0000 |
commit | d732a2915bcfe52b5bcbd364ca45c426f3b214af (patch) | |
tree | e0065859c4f449db4153d012f27632e66527574c /lib/Target/PowerPC/README_ALTIVEC.txt | |
parent | b3e7be25be0b6fafae5b5301df40e09a7cae0ede (diff) | |
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27227 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/README_ALTIVEC.txt')
-rw-r--r-- | lib/Target/PowerPC/README_ALTIVEC.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/README_ALTIVEC.txt b/lib/Target/PowerPC/README_ALTIVEC.txt index 7754f4c..d4c944b 100644 --- a/lib/Target/PowerPC/README_ALTIVEC.txt +++ b/lib/Target/PowerPC/README_ALTIVEC.txt @@ -134,4 +134,14 @@ This would fix two problems: 2. Identical operations in different types are not getting CSE'd (e.g. { 0U, 0U, 0U, 0U } and {0.0, 0.0, 0.0, 0.0}. +//===----------------------------------------------------------------------===// + +Two identical comparisons in predicate and nonpredicate form like this: + +a = vec_cmpb(x, y); +b = vec_any_out(x, y); + +Should turn into one "." compare instruction, not a dot and "nondot" form. + +//===----------------------------------------------------------------------===// |