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| author | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
| commit | cee313d288a4faf0355d76fb6e0e927e211d08a5 (patch) | |
| tree | d386075318d761197779a96e5d8fc0dc7b06342b /llvm/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll | |
| parent | c3d6a929fdd92fd06d4304675ade8d7210ee711a (diff) | |
| download | bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.tar.gz bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.zip | |
Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
Diffstat (limited to 'llvm/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll b/llvm/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll new file mode 100644 index 00000000000..baaafefa81d --- /dev/null +++ b/llvm/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll @@ -0,0 +1,13 @@ +; RUN: opt < %s -instcombine -S | FileCheck %s + +; This cannot be turned into a sign extending cast! + +define i64 @test(i64 %X) { + %Y = shl i64 %X, 16 ; <i64> [#uses=1] +; CHECK: %Y = shl i64 %X, 16 + %Z = ashr i64 %Y, 16 ; <i64> [#uses=1] +; CHECK: %Z = ashr exact i64 %Y, 16 + ret i64 %Z +; CHECK: ret i64 %Z +} + |
