New test case for testing pow(3) math library optimizations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21613 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 insertions, 0 deletions

diff --git a/test/Transforms/SimplifyLibCalls/Pow.ll b/test/Transforms/SimplifyLibCalls/Pow.ll
new file mode 100644
index 0000000000..c6d4b0f594
--- /dev/null
+++ b/test/Transforms/SimplifyLibCalls/Pow.ll
@@ -0,0 +1,18 @@
+; Test that the StrCatOptimizer works correctly
+; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | not grep 'pow'
+
+declare double %pow(double,double)
+%fpstorage = global double 5.0
+
+implementation   ; Functions:
+
+int %main () {
+  %fpnum = load double* %fpstorage;
+  %one = call double %pow(double 1.0, double %fpnum)
+  %two = call double %pow(double %one, double 0.5)
+  %three = call double %pow(double %two, double 1.0)
+  %four = call double %pow(double %three, double -1.0)
+  %five = call double %pow(double %four, double 0.0)
+  %result = cast double %five to int
+  ret int %result
+}