From c6e3d5ea2edc680fe601aa0d03d879ee042f60d3 Mon Sep 17 00:00:00 2001
From: Reid Spencer <rspencer@reidspencer.com>
Date: Sat, 14 May 2005 16:44:43 +0000
Subject: [PATCH] Add a test case for testing ffs libcall conversion to
 constant

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22028 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/SimplifyLibCalls/FFS.ll | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 test/Transforms/SimplifyLibCalls/FFS.ll

diff --git a/test/Transforms/SimplifyLibCalls/FFS.ll b/test/Transforms/SimplifyLibCalls/FFS.ll
new file mode 100644
index 00000000000..35b5d3fb6c7
--- /dev/null
+++ b/test/Transforms/SimplifyLibCalls/FFS.ll
@@ -0,0 +1,23 @@
+; Test that the ToAsciiOptimizer works correctly
+; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | not grep 'call.*%ffs'
+
+declare int %ffs(int)
+declare int %ffsl(int)
+declare int %ffsll(long)
+
+implementation   ; Functions:
+
+int %main () {
+  %val1 = call int %ffs(int 1)
+  %val2 = call int %ffs(int 2048)
+  %val3 = call int %ffsl(int 65536)
+  %val4 = call int %ffsll(long 1024)
+  %val5 = call int %ffsll(long 17179869184)
+  %val6 = call int %ffsll(long 1152921504606846976)
+  %rslt1 = add int %val1, %val2
+  %rslt2 = add int %val3, %val4
+  %rslt3 = add int %val5, %val6
+  %rslt4 = add int %rslt1, %rslt2
+  %rslt5 = add int %rslt4, %rslt3
+  ret int %rslt5
+}