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llvm-mirror/test/Regression/Transforms/InstCombine/call-intrinsics.ll
Chris Lattner 0cb585f878 new testcase for intrinsic folding
llvm-svn: 11943
2004-02-28 05:28:42 +00:00

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541 B
LLVM

; RUN: llvm-as < %s | opt -instcombine | llvm-dis
declare void %llvm.memmove(sbyte*, sbyte*, uint, uint)
declare void %llvm.memcpy(sbyte*, sbyte*, uint, uint)
declare void %llvm.memset(sbyte*, ubyte, uint, uint)
%X = global sbyte 0
%Y = global sbyte 12
void %zero_byte_test() {
; These process zero bytes, so they are a noop.
call void %llvm.memmove(sbyte* %X, sbyte* %Y, uint 0, uint 100)
call void %llvm.memcpy(sbyte* %X, sbyte* %Y, uint 0, uint 100)
call void %llvm.memset(sbyte* %X, ubyte 123, uint 0, uint 100)
ret void
}