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authorShih-wei Liao <sliao@google.com>2010-02-10 11:10:31 -0800
committerShih-wei Liao <sliao@google.com>2010-02-10 11:10:31 -0800
commite264f62ca09a8f65c87a46d562a4d0f9ec5d457e (patch)
tree59e3d57ef656cef79afa708ae0a3daf25cd91fcf /test/Transforms/InstCombine/apint-and-xor-merge.ll
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Check in LLVM r95781.
Diffstat (limited to 'test/Transforms/InstCombine/apint-and-xor-merge.ll')
-rw-r--r--test/Transforms/InstCombine/apint-and-xor-merge.ll22
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diff --git a/test/Transforms/InstCombine/apint-and-xor-merge.ll b/test/Transforms/InstCombine/apint-and-xor-merge.ll
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index 0000000000..8adffde362
--- /dev/null
+++ b/test/Transforms/InstCombine/apint-and-xor-merge.ll
@@ -0,0 +1,22 @@
+; This test case checks that the merge of and/xor can work on arbitrary
+; precision integers.
+
+; RUN: opt < %s -instcombine -S | grep and | count 1
+; RUN: opt < %s -instcombine -S | grep xor | count 2
+
+; (x &z ) ^ (y & z) -> (x ^ y) & z
+define i57 @test1(i57 %x, i57 %y, i57 %z) {
+ %tmp3 = and i57 %z, %x
+ %tmp6 = and i57 %z, %y
+ %tmp7 = xor i57 %tmp3, %tmp6
+ ret i57 %tmp7
+}
+
+; (x & y) ^ (x | y) -> x ^ y
+define i23 @test2(i23 %x, i23 %y, i23 %z) {
+ %tmp3 = and i23 %y, %x
+ %tmp6 = or i23 %y, %x
+ %tmp7 = xor i23 %tmp3, %tmp6
+ ret i23 %tmp7
+}
+