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authorChris Lattner <sabre@nondot.org>2007-04-06 23:36:59 +0000
committerChris Lattner <sabre@nondot.org>2007-04-06 23:36:59 +0000
commit3dc477d5e3d19eb99c55522e34b74a485623678a (patch)
treef40cbed81b089959c5d77283f36260cbeb6074ac /llvm/test
parent56b7fc77688c287885143e3dcd352f11cf8d7c18 (diff)
downloadbcm5719-llvm-3dc477d5e3d19eb99c55522e34b74a485623678a.tar.gz
bcm5719-llvm-3dc477d5e3d19eb99c55522e34b74a485623678a.zip
testcase for PR1307
llvm-svn: 35705
Diffstat (limited to 'llvm/test')
-rw-r--r--llvm/test/Transforms/SimplifyLibCalls/2007-04-06-strchr-miscompile.ll28
1 files changed, 28 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SimplifyLibCalls/2007-04-06-strchr-miscompile.ll b/llvm/test/Transforms/SimplifyLibCalls/2007-04-06-strchr-miscompile.ll
new file mode 100644
index 00000000000..7c78355e6d2
--- /dev/null
+++ b/llvm/test/Transforms/SimplifyLibCalls/2007-04-06-strchr-miscompile.ll
@@ -0,0 +1,28 @@
+; RUN: llvm-as < %s | opt -simplify-libcalls -instcombine | llvm-dis > %t &&
+; RUN: grep '@str,.*i64 3' %t &&
+; RUN: grep '@str1,.*i64 7' %t &&
+; RUN: grep 'ret i8.*null' %t
+; PR1307
+
+@str = internal constant [5 x i8] c"foog\00"
+@str1 = internal constant [8 x i8] c"blahhh!\00"
+@str2 = internal constant [5 x i8] c"Ponk\00"
+
+define i8* @test1() {
+ %tmp3 = tail call i8* @strchr( i8* getelementptr ([5 x i8]* @str, i32 0, i32 2), i32 103 ) ; <i8*> [#uses=1]
+ ret i8* %tmp3
+}
+
+declare i8* @strchr(i8*, i32)
+
+define i8* @test2() {
+ %tmp3 = tail call i8* @strchr( i8* getelementptr ([8 x i8]* @str1, i32 0, i32 2), i32 0 ) ; <i8*> [#uses=1]
+ ret i8* %tmp3
+}
+
+define i8* @test3() {
+entry:
+ %tmp3 = tail call i8* @strchr( i8* getelementptr ([5 x i8]* @str2, i32 0, i32 1), i32 80 ) ; <i8*> [#uses=1]
+ ret i8* %tmp3
+}
+
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