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authorChris Lattner <sabre@nondot.org>2005-05-08 20:56:02 +0000
committerChris Lattner <sabre@nondot.org>2005-05-08 20:56:02 +0000
commitf4946dff7109f139593586627ad131afa545387f (patch)
tree1595408a4028f4fbd5c0b041f982c40cacfbc527 /test/Transforms/Reassociate/basictest4.ll
parentc9fd097a01383323f166c14c17d3984620cad766 (diff)
new testcases for PR557
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21782 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/Reassociate/basictest4.ll')
-rw-r--r--test/Transforms/Reassociate/basictest4.ll20
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/Reassociate/basictest4.ll b/test/Transforms/Reassociate/basictest4.ll
new file mode 100644
index 0000000000..4f75e167c6
--- /dev/null
+++ b/test/Transforms/Reassociate/basictest4.ll
@@ -0,0 +1,20 @@
+; RUN: llvm-as < %s | opt -reassociate -gcse -instcombine | llvm-dis | not grep add
+
+%a = weak global int 0
+%b = weak global int 0
+%c = weak global int 0
+%d = weak global int 0
+
+implementation
+
+int %foo() {
+ %tmp.0 = load int* %a
+ %tmp.1 = load int* %b
+ %tmp.2 = add int %tmp.0, %tmp.1 ; (a+b)
+ %tmp.4 = load int* %c
+ %tmp.5 = add int %tmp.2, %tmp.4 ; (a+b)+c
+ %tmp.8 = add int %tmp.0, %tmp.4 ; (a+c)
+ %tmp.11 = add int %tmp.8, %tmp.1 ; (a+c)+b
+ %RV = xor int %tmp.5, %tmp.11 ; X ^ X = 0
+ ret int %RV
+}