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authorNick Lewycky <nicholas@mxc.ca>2008-07-09 07:29:11 +0000
committerNick Lewycky <nicholas@mxc.ca>2008-07-09 07:29:11 +0000
commit9ee863ecc00ff191bfec3f1421d80b41989f4413 (patch)
tree05b966209bbd8d3a72fcf2d780ce14acbe9ea921 /test/Transforms/InstCombine/2008-07-08-AndICmp.ll
parent1afe5c3ff8f37a94e47379ff9535b5e03faca020 (diff)
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Fold (a < 8) && (b < 8) into (a|b) < 8 for unsigned less or greater than.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53282 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/2008-07-08-AndICmp.ll')
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1 files changed, 10 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2008-07-08-AndICmp.ll b/test/Transforms/InstCombine/2008-07-08-AndICmp.ll
new file mode 100644
index 0000000..c600241
--- /dev/null
+++ b/test/Transforms/InstCombine/2008-07-08-AndICmp.ll
@@ -0,0 +1,10 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep icmp | count 1
+; PR2330
+
+define i1 @foo(i32 %a, i32 %b) nounwind {
+entry:
+ icmp ult i32 %a, 8 ; <i1>:0 [#uses=1]
+ icmp ult i32 %b, 8 ; <i1>:1 [#uses=1]
+ and i1 %1, %0 ; <i1>:2 [#uses=1]
+ ret i1 %2
+}