testcase for the recent inliner improvement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28643 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/Inline/inline_prune.ll b/test/Transforms/Inline/inline_prune.ll
new file mode 100644 (file)
index 0000000..fdbdf83
--- /dev/null
+++ b/test/Transforms/Inline/inline_prune.ll
@@ -0,0 +1,40 @@
+; RUN: llvm-as < %s | opt -inline -disable-output &&
+; RUN: llvm-as < %s | opt -inline | llvm-dis | not grep 'callee[12](' &&
+; RUN: llvm-as < %s | opt -inline | llvm-dis | not grep mul
+
+implementation
+
+internal int %callee1(int %A, int %B) {
+       %cond = seteq int %A, 123
+       br bool %cond, label %T, label %F
+T:
+       %C = mul int %B, %B
+       ret int %C
+F:
+       ret int 0
+}
+
+internal int %callee2(int %A, int %B) {
+       switch int %A, label %T [
+          int 10, label %F
+          int 1234, label %G
+        ]
+       %cond = seteq int %A, 123
+       br bool %cond, label %T, label %F
+T:
+       %C = mul int %B, %B
+       ret int %C
+F:
+       ret int 0
+G:
+       %D = mul int %B, %B
+       %E = mul int %D, %B
+       ret int %E
+}
+
+int %test(int %A) {
+       %X = call int %callee1(int 10, int %A)
+       %Y = call int %callee2(int 10, int %A)
+       %Z = add int %X, %Y
+       ret int %Z
+}