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| author | Jonas Paulsson <paulson1@linux.ibm.com> | 2024-08-05 11:50:05 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-08-05 11:50:05 +0200 |
| commit | f231d3dab3da9966621ed4e72847f1292db54ede (patch) | |
| tree | e2c282c66ef9e0dc3d8b4c34942ab98935f215ad /llvm/test/CodeGen/Generic | |
| parent | d808f15828d0685fb65f140c49d6f7e7142d2503 (diff) | |
Fix some X86 tests (#101944)
extractelement-shuffle.ll: Test for bugfix in DAGCombiner, moved to
Generic.
2010-07-06-DbgCrash.ll and 2006-10-02-BoolRetCrash.ll: Bugfixes in X86,
run tests with X86 backend.
Diffstat (limited to 'llvm/test/CodeGen/Generic')
| -rw-r--r-- | llvm/test/CodeGen/Generic/extractelement-shuffle.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Generic/extractelement-shuffle.ll b/llvm/test/CodeGen/Generic/extractelement-shuffle.ll new file mode 100644 index 000000000000..d1ba9a845800 --- /dev/null +++ b/llvm/test/CodeGen/Generic/extractelement-shuffle.ll @@ -0,0 +1,13 @@ +; RUN: llc < %s + +; Examples that exhibits a bug in DAGCombine. The case is triggered by the +; following program. The bug is DAGCombine assumes that the bit convert +; preserves the number of elements so the optimization code tries to read +; through the 3rd mask element, which doesn't exist. +define i32 @update(<2 x i64> %val1, <2 x i64> %val2) nounwind readnone { +entry: + %shuf = shufflevector <2 x i64> %val1, <2 x i64> %val2, <2 x i32> <i32 0, i32 3> + %bit = bitcast <2 x i64> %shuf to <4 x i32> + %res = extractelement <4 x i32> %bit, i32 3 + ret i32 %res +} |