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25 lines
899 B
LLVM
25 lines
899 B
LLVM
; Test that the StrCpyOptimizer works correctly
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; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | not grep 'call.*strcpy'
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declare sbyte* %strcpy(sbyte*,sbyte*)
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declare int %puts(sbyte*)
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%hello = constant [6 x sbyte] c"hello\00"
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%null = constant [1 x sbyte] c"\00"
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%null_hello = constant [7 x sbyte] c"\00hello\00"
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implementation ; Functions:
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int %main () {
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%target = alloca [1024 x sbyte]
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%arg1 = getelementptr [1024 x sbyte]* %target, int 0, int 0
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store sbyte 0, sbyte* %arg1
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%arg2 = getelementptr [6 x sbyte]* %hello, int 0, int 0
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%rslt1 = call sbyte* %strcpy(sbyte* %arg1, sbyte* %arg2)
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%arg3 = getelementptr [1 x sbyte]* %null, int 0, int 0
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%rslt2 = call sbyte* %strcpy(sbyte* %rslt1, sbyte* %arg3)
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%arg4 = getelementptr [7 x sbyte]* %null_hello, int 0, int 0
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%rslt3 = call sbyte* %strcpy(sbyte* %rslt2, sbyte* %arg4)
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call int %puts(sbyte* %rslt3)
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ret int 0
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}
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