[llvm] ffd3e16 - [IR] add unit test for Constant::isElementWiseEqual() for undef corner case; NFC

[Sanjay Patel via llvm-commits]

Author: Sanjay Patel
Date: 2020-01-17T08:26:00-05:00
New Revision: ffd3e1607db232c362fa5ad40e5cf2afa400b304

URL: https://github.com/llvm/llvm-project/commit/ffd3e1607db232c362fa5ad40e5cf2afa400b304
DIFF: https://github.com/llvm/llvm-project/commit/ffd3e1607db232c362fa5ad40e5cf2afa400b304.diff

LOG: [IR] add unit test for Constant::isElementWiseEqual() for undef corner case; NFC

Added: 
    

Modified: 
    llvm/unittests/IR/ConstantsTest.cpp

Removed: 
    


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diff  --git a/llvm/unittests/IR/ConstantsTest.cpp b/llvm/unittests/IR/ConstantsTest.cpp
index 305555fb741f..7154f35ccbd4 100644
--- a/llvm/unittests/IR/ConstantsTest.cpp
+++ b/llvm/unittests/IR/ConstantsTest.cpp
@@ -616,9 +616,11 @@ TEST(ConstantsTest, isElementWiseEqual) {
   Constant *CF1211 = ConstantVector::get({CF1, CF2, CF1, CF1});
   Constant *CF12U1 = ConstantVector::get({CF1, CF2, CFU, CF1});
   Constant *CF12U2 = ConstantVector::get({CF1, CF2, CFU, CF2});
+  Constant *CFUU1U = ConstantVector::get({CFU, CFU, CF1, CFU});
 
   EXPECT_TRUE(CF1211->isElementWiseEqual(CF12U1));
   EXPECT_TRUE(CF12U1->isElementWiseEqual(CF1211));
+  EXPECT_FALSE(CFUU1U->isElementWiseEqual(CF12U1)); // FIXME - all lanes compare as undef
   EXPECT_FALSE(CF12U2->isElementWiseEqual(CF12U1));
   EXPECT_FALSE(CF12U1->isElementWiseEqual(CF12U2));