Add a test case for testing the FPrintFOptimization.

llvm-svn: 21656

1 files changed, 28 insertions, 0 deletions

diff --git a/llvm/test/Regression/Transforms/SimplifyLibCalls/FPrintF.ll b/llvm/test/Regression/Transforms/SimplifyLibCalls/FPrintF.ll
new file mode 100644
index 00000000000..760eb7f5ff6
--- /dev/null
+++ b/llvm/test/Regression/Transforms/SimplifyLibCalls/FPrintF.ll
@@ -0,0 +1,28 @@
+; Test that the FPrintFOptimizer works correctly
+; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | not grep 'call.*fprintf'
+;
+
+%struct._IO_FILE = type { int, sbyte*, sbyte*, sbyte*, sbyte*, sbyte*, sbyte*, sbyte*, sbyte*, sbyte*, sbyte*, sbyte*, %struct._IO_marker*, %struct._IO_FILE*, int, int, int, ushort, sbyte, [1 x sbyte], sbyte*, long, sbyte*, sbyte*, int, [52 x sbyte] }
+%struct._IO_marker = type { %struct._IO_marker*, %struct._IO_FILE*, int }
+
+%str = constant [3 x sbyte] c"%s\00"		
+%chr = constant [3 x sbyte] c"%c\00"		
+%hello = constant [13 x sbyte] c"hello world\0A\00"
+%stdout = external global %struct._IO_FILE*		
+
+declare int %fprintf(%struct._IO_FILE*, sbyte*, ...)
+
+implementation  
+
+int %foo() 
+{
+entry:
+	%tmp.1 = load %struct._IO_FILE** %stdout
+	%tmp.0 = call int (%struct._IO_FILE*, sbyte*, ...)* %fprintf( %struct._IO_FILE* %tmp.1, sbyte* getelementptr ([13 x sbyte]* %hello, int 0, int 0) )
+	%tmp.4 = load %struct._IO_FILE** %stdout
+	%tmp.3 = call int (%struct._IO_FILE*, sbyte*, ...)* %fprintf( %struct._IO_FILE* %tmp.4, sbyte* getelementptr ([3 x sbyte]* %str, int 0, int 0), sbyte* getelementptr ([13 x sbyte]* %hello, int 0, int 0) )
+	%tmp.8 = load %struct._IO_FILE** %stdout
+	%tmp.7 = call int (%struct._IO_FILE*, sbyte*, ...)* %fprintf( %struct._IO_FILE* %tmp.8, sbyte* getelementptr ([3 x sbyte]* %chr, int 0, int 0), int 33 )
+	ret int 0
+}
+