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authorMon P Wang <wangmp@apple.com>2009-12-02 04:59:58 +0000
committerMon P Wang <wangmp@apple.com>2009-12-02 04:59:58 +0000
commit69a008075b29fbe0644ccbeecf1418ef8cca5e24 (patch)
treea2224d38112c7449a818b5eb4f9d814e9a651add /test/Transforms/InstCombine
parente3a18de4f66a90040fb67495578652e36a886af5 (diff)
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Fixed an assertion failure for tracking sext of a vector of integers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90290 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine')
-rw-r--r--test/Transforms/InstCombine/sext-2.ll14
1 files changed, 14 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/sext-2.ll b/test/Transforms/InstCombine/sext-2.ll
new file mode 100644
index 0000000..39d4a3c
--- /dev/null
+++ b/test/Transforms/InstCombine/sext-2.ll
@@ -0,0 +1,14 @@
+; Checks to see that instcombine can handle a sign extension of i1
+
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+define void @test(<2 x i16> %srcA, <2 x i16> %srcB, <2 x i16>* %dst) nounwind {
+entry:
+; CHECK-NOT: tmask
+; CHECK: ret
+ %cmp = icmp eq <2 x i16> %srcB, %srcA;
+ %sext = sext <2 x i1> %cmp to <2 x i16>;
+ %tmask = ashr <2 x i16> %sext, <i16 15, i16 15> ;
+ store <2 x i16> %tmask, <2 x i16>* %dst;
+ ret void
+}