From 8fe86dde1cab3c6fe0e0c8b9d3539d1054001368 Mon Sep 17 00:00:00 2001
From: Reid Spencer <rspencer@reidspencer.com>
Date: Tue, 26 Apr 2005 05:22:38 +0000
Subject: [PATCH] * Add a test case for StrLenOptimization * Rename ExitInMain
 and StrCat tests so they don't have the date the   regression was entered
 since they are feature tests, not regressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21558 91177308-0d34-0410-b5e6-96231b3b80d8
---
 ...2005-04-24-ExitInMain.ll => ExitInMain.ll} |  0
 .../{2005-04-24-strcat.ll => StrCat.ll}       |  0
 test/Transforms/SimplifyLibCalls/StrLen.ll    | 21 +++++++++++++++++++
 3 files changed, 21 insertions(+)
 rename test/Transforms/SimplifyLibCalls/{2005-04-24-ExitInMain.ll => ExitInMain.ll} (100%)
 rename test/Transforms/SimplifyLibCalls/{2005-04-24-strcat.ll => StrCat.ll} (100%)
 create mode 100644 test/Transforms/SimplifyLibCalls/StrLen.ll

diff --git a/test/Transforms/SimplifyLibCalls/2005-04-24-ExitInMain.ll b/test/Transforms/SimplifyLibCalls/ExitInMain.ll
similarity index 100%
rename from test/Transforms/SimplifyLibCalls/2005-04-24-ExitInMain.ll
rename to test/Transforms/SimplifyLibCalls/ExitInMain.ll
diff --git a/test/Transforms/SimplifyLibCalls/2005-04-24-strcat.ll b/test/Transforms/SimplifyLibCalls/StrCat.ll
similarity index 100%
rename from test/Transforms/SimplifyLibCalls/2005-04-24-strcat.ll
rename to test/Transforms/SimplifyLibCalls/StrCat.ll
diff --git a/test/Transforms/SimplifyLibCalls/StrLen.ll b/test/Transforms/SimplifyLibCalls/StrLen.ll
new file mode 100644
index 00000000000..0e1750162f9
--- /dev/null
+++ b/test/Transforms/SimplifyLibCalls/StrLen.ll
@@ -0,0 +1,21 @@
+; Test that the StrCatOptimizer works correctly
+; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | not grep 'call.*strlen'
+
+declare int %strlen(sbyte*)
+%hello = constant [6 x sbyte] c"hello\00"
+%null = constant [1 x sbyte] c"\00"
+%null_hello = constant [7 x sbyte] c"\00hello\00"
+
+implementation   ; Functions:
+
+int %main () {
+  %hello_p = getelementptr [6 x sbyte]* %hello, int 0, int 0
+  %hello_l = call int %strlen(sbyte* %hello_p)
+  %null_p = getelementptr [1 x sbyte]* %null, int 0, int 0
+  %null_l = call int %strlen(sbyte* %null_p)
+  %null_hello_p = getelementptr [7 x sbyte]* %null_hello, int 0, int 0
+  %null_hello_l = call int %strlen(sbyte* %null_hello_p)
+  %sum1 = add int %hello_l, %null_l
+  %sum2 = add int %sum1, %null_hello_l
+  ret int %sum2
+}
-- 
2.34.1