testcase for PR1201

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35980 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/malloc-free-delete.ll b/test/Transforms/InstCombine/malloc-free-delete.ll
new file mode 100644 (file)
index 0000000..e75b1f3
--- /dev/null
+++ b/test/Transforms/InstCombine/malloc-free-delete.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'ret i32 0' &&
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep malloc
+; PR1201
+define i32 @main(i32 %argc, i8** %argv) {
+        %c_19 = alloca i8*              ; <i8**> [#uses=2]
+        %malloc_206 = malloc i8, i32 10         ; <i8*> [#uses=1]
+        store i8* %malloc_206, i8** %c_19
+        %tmp_207 = load i8** %c_19              ; <i8*> [#uses=1]
+        free i8* %tmp_207
+        ret i32 0
+}
+