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| author | Tanya Lattner <tonic@nondot.org> | 2011-05-18 06:42:21 +0000 |
|---|---|---|
| committer | Tanya Lattner <tonic@nondot.org> | 2011-05-18 06:42:21 +0000 |
| commit | 2a8eb722c7bb0fac2fe09a876f3471dcb25f465e (patch) | |
| tree | d695e339ba60f7e6c04a9c67a01504cc937e8e43 /test/CodeGen/ARM | |
| parent | 0e30f02f44185b43d279b7b3ef8b3356f2b5c7cb (diff) | |
| download | llvm-2a8eb722c7bb0fac2fe09a876f3471dcb25f465e.tar.gz llvm-2a8eb722c7bb0fac2fe09a876f3471dcb25f465e.tar.bz2 llvm-2a8eb722c7bb0fac2fe09a876f3471dcb25f465e.tar.xz | |
In r131488 I misunderstood how VREV works. It splits the vector in half and splits each half. Therefore, the real problem was that we were using a VREV64 for a 4xi16, when we should have been using a VREV32.
Updated test case and reverted change to the PerfectShuffle Table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131529 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM')
| -rw-r--r-- | test/CodeGen/ARM/vrev.ll | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/test/CodeGen/ARM/vrev.ll b/test/CodeGen/ARM/vrev.ll index 89e222714c..0f0ea2b932 100644 --- a/test/CodeGen/ARM/vrev.ll +++ b/test/CodeGen/ARM/vrev.ll @@ -148,12 +148,11 @@ define void @test_with_vcombine(<4 x float>* %v) nounwind { ret void } -; Test the shuffle of a 4xi16 which exposed a problem with the perfect shuffle table -; entry for vrev. +; vrev <4 x i16> should use VREV32 and not VREV64 define void @test_vrev64(<4 x i16>* nocapture %source, <2 x i16>* nocapture %dst) nounwind ssp { ; CHECK: test_vrev64: -; CHECK: vrev64.16 ; CHECK: vext.16 +; CHECK: vrev32.16 entry: %0 = bitcast <4 x i16>* %source to <8 x i16>* %tmp2 = load <8 x i16>* %0, align 4 |