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43c4361178
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11943 91177308-0d34-0410-b5e6-96231b3b80d8
18 lines
541 B
LLVM
18 lines
541 B
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis
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declare void %llvm.memmove(sbyte*, sbyte*, uint, uint)
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declare void %llvm.memcpy(sbyte*, sbyte*, uint, uint)
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declare void %llvm.memset(sbyte*, ubyte, uint, uint)
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%X = global sbyte 0
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%Y = global sbyte 12
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void %zero_byte_test() {
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; These process zero bytes, so they are a noop.
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call void %llvm.memmove(sbyte* %X, sbyte* %Y, uint 0, uint 100)
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call void %llvm.memcpy(sbyte* %X, sbyte* %Y, uint 0, uint 100)
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call void %llvm.memset(sbyte* %X, ubyte 123, uint 0, uint 100)
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ret void
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}
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