aboutsummaryrefslogtreecommitdiff
path: root/test/Transforms/Reassociate/basictest2.ll
diff options
context:
space:
mode:
Diffstat (limited to 'test/Transforms/Reassociate/basictest2.ll')
-rw-r--r--test/Transforms/Reassociate/basictest2.ll11
1 files changed, 11 insertions, 0 deletions
diff --git a/test/Transforms/Reassociate/basictest2.ll b/test/Transforms/Reassociate/basictest2.ll
new file mode 100644
index 000000000000..dbde3af35e1b
--- /dev/null
+++ b/test/Transforms/Reassociate/basictest2.ll
@@ -0,0 +1,11 @@
+; With reassociation, constant folding can eliminate the +/- 30 constants.
+;
+; RUN: llvm-as < %s | opt -reassociate -constprop -instcombine -die | llvm-dis | not grep 30
+
+define i32 @test(i32 %reg109, i32 %reg1111) {
+ %reg115 = add i32 %reg109, -30 ; <i32> [#uses=1]
+ %reg116 = add i32 %reg115, %reg1111 ; <i32> [#uses=1]
+ %reg117 = add i32 %reg116, 30 ; <i32> [#uses=1]
+ ret i32 %reg117
+}
+