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llvm-mirror/test/CodeGen/X86/2004-04-09-SameValueCoalescing.llx
Tanya Lattner b6a27ed83f Byebye llvm-upgrade!
llvm-svn: 48762
2008-03-25 04:26:08 +00:00

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; Linear scan does not currently coalesce any two variables that have
; overlapping live intervals. When two overlapping intervals have the same
; value, they can be joined though.
;
; RUN: llvm-as < %s | llc -march=x86 -regalloc=linearscan | \
; RUN: not grep {mov %\[A-Z\]\\\{2,3\\\}, %\[A-Z\]\\\{2,3\\\}}
define i64 @test(i64 %x) {
entry:
%tmp.1 = mul i64 %x, 4294967297 ; <i64> [#uses=1]
ret i64 %tmp.1
}