llvm-project/llvm/test/Transforms/InstCombine/xor-undef.ll

; RUN: opt < %s -instcombine -S | grep zeroinitializer

define <2 x i64> @f() {
	%tmp = xor <2 x i64> undef, undef
        ret <2 x i64> %tmp
}
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. llvm-svn: 81537 2009-09-12 02:01:28 +08:00			`; RUN: opt < %s -instcombine -S \| grep zeroinitializer`
Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it. llvm-svn: 48791 2008-03-26 04:07:13 +08:00
			`define <2 x i64> @f() {`
			`%tmp = xor <2 x i64> undef, undef`
			`ret <2 x i64> %tmp`
			`}`