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Imported Upstream version 6.10.0.49

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Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b
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Xamarin Public Jenkins (auto-signing)
2020-01-16 16:38:04 +00:00
parent d94e79959b
commit 468663ddbb
48518 changed files with 2789335 additions and 61176 deletions
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14
external/llvm-project/llvm/test/CodeGen/X86/extractelement-shuffle.ll vendored Normal file
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@@ -0,0 +1,14 @@
; RUN: llc < %s
; REQUIRES: default_triple
; 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
}