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authorEli Friedman <eli.friedman@gmail.com>2011-02-19 22:42:40 +0000
committerEli Friedman <eli.friedman@gmail.com>2011-02-19 22:42:40 +0000
commit1347623aaf25b7fe6486479353fc87bd7541a5f7 (patch)
treeb582246cc63d446a70dbc262e6c14b34d96805b2 /test
parent86b115c78b6c50c7fedbeab80128b2dcbc3cfc57 (diff)
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PR9218: SimplifyDemandedVectorElts can return a non-null value that is not
the instruction passed in. Make sure to account for this correctly, instead of looping infinitely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126058 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r--test/Transforms/InstCombine/2011-02-16-InsertelementHang.ll11
1 files changed, 11 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2011-02-16-InsertelementHang.ll b/test/Transforms/InstCombine/2011-02-16-InsertelementHang.ll
new file mode 100644
index 0000000000..2f6034e158
--- /dev/null
+++ b/test/Transforms/InstCombine/2011-02-16-InsertelementHang.ll
@@ -0,0 +1,11 @@
+; RUN: opt < %s -instcombine -S | FileCheck %s
+; PR9218
+
+%vec2x2 = type { <2 x double>, <2 x double> }
+
+define %vec2x2 @split(double) nounwind alwaysinline {
+; CHECK: @split
+; CHECK: ret %vec2x2 undef
+ %vba = insertelement <2 x double> undef, double %0, i32 2
+ ret <2 x double> %vba, <2 x double> %vba
+}