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| author | Juergen Ributzka <juergen@apple.com> | 2014-04-12 02:53:51 +0000 |
|---|---|---|
| committer | Juergen Ributzka <juergen@apple.com> | 2014-04-12 02:53:51 +0000 |
| commit | 2aa7106dd6cf0ee59a114d7ddcc50d1ba4ee687d (patch) | |
| tree | 9a589200ae334df2010077a1301500855538ce84 /test/Transforms | |
| parent | 940b67465dbd12240dfc3d88288b2da9563ccdd7 (diff) | |
| download | llvm-2aa7106dd6cf0ee59a114d7ddcc50d1ba4ee687d.tar.gz llvm-2aa7106dd6cf0ee59a114d7ddcc50d1ba4ee687d.tar.bz2 llvm-2aa7106dd6cf0ee59a114d7ddcc50d1ba4ee687d.tar.xz | |
[ARM64] Never hoist the shift value of a shift instruction.
There is no need to check if we want to hoist the immediate value of an
shift instruction. Simply return TCC_Free right away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206101 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/ConstantHoisting/ARM64/large-immediate.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/Transforms/ConstantHoisting/ARM64/large-immediate.ll b/test/Transforms/ConstantHoisting/ARM64/large-immediate.ll index 92ad6ee70d..575be791d9 100644 --- a/test/Transforms/ConstantHoisting/ARM64/large-immediate.ll +++ b/test/Transforms/ConstantHoisting/ARM64/large-immediate.ll @@ -16,3 +16,12 @@ define i512 @test2(i512 %a) nounwind { %2 = or i512 %1, 7 ret i512 %2 } + +; Check that we don't hoist the shift value of a shift instruction. +define i512 @test3(i512 %a) nounwind { +; CHECK-LABEL: test3 +; CHECK-NOT: %const = bitcast i512 504 to i512 + %1 = shl i512 %a, 504 + %2 = ashr i512 %1, 504 + ret i512 %2 +} |