summaryrefslogtreecommitdiffstats
path: root/llvm/test/Analysis/LoadVN/undefined_load.ll
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/test/Analysis/LoadVN/undefined_load.ll')
-rw-r--r--llvm/test/Analysis/LoadVN/undefined_load.ll14
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/test/Analysis/LoadVN/undefined_load.ll b/llvm/test/Analysis/LoadVN/undefined_load.ll
new file mode 100644
index 00000000000..8e4660c045d
--- /dev/null
+++ b/llvm/test/Analysis/LoadVN/undefined_load.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-upgrade < %s | llvm-as | opt -load-vn -gcse | llvm-dis | not grep load
+; Test that loads of undefined memory are eliminated.
+
+int %test1() {
+ %X = malloc int
+ %Y = load int* %X
+ ret int %Y
+}
+int %test2() {
+ %X = alloca int
+ %Y = load int* %X
+ ret int %Y
+}
+
OpenPOWER on IntegriCloud