[llvm-commits] CVS: llvm/test/Regression/Transforms/SimplifyLibCalls/StrCpy.ll

[Reid Spencer]

Changes in directory llvm/test/Regression/Transforms/SimplifyLibCalls:

StrCpy.ll added (r1.1)
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Log message:

Add a testcase for optimizing the strcpy libcall.


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Diffs of the changes:  (+24 -0)

 StrCpy.ll |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+)


Index: llvm/test/Regression/Transforms/SimplifyLibCalls/StrCpy.ll
diff -c /dev/null llvm/test/Regression/Transforms/SimplifyLibCalls/StrCpy.ll:1.1
*** /dev/null	Fri Apr 29 01:01:38 2005
--- llvm/test/Regression/Transforms/SimplifyLibCalls/StrCpy.ll	Fri Apr 29 01:01:28 2005
***************
*** 0 ****
--- 1,24 ----
+ ; Test that the StrCatOptimizer works correctly
+ ; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | not grep 'call.*strcat'
+ 
+ declare sbyte* %strcpy(sbyte*,sbyte*)
+ declare int %puts(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 () {
+   %target = alloca [1024 x sbyte]
+   %arg1 = getelementptr [1024 x sbyte]* %target, int 0, int 0
+   store sbyte 0, sbyte* %arg1
+   %arg2 = getelementptr [6 x sbyte]* %hello, int 0, int 0
+   %rslt1 = call sbyte* %strcpy(sbyte* %arg1, sbyte* %arg2)
+   %arg3 = getelementptr [1 x sbyte]* %null, int 0, int 0
+   %rslt2 = call sbyte* %strcpy(sbyte* %rslt1, sbyte* %arg3)
+   %arg4 = getelementptr [7 x sbyte]* %null_hello, int 0, int 0
+   %rslt3 = call sbyte* %strcpy(sbyte* %rslt2, sbyte* %arg4)
+   call int %puts(sbyte* %rslt3)
+   ret int 0
+ }