llvm-mirror/test/CodeGen/X86/2004-04-09-SameValueCoalescing.llx
2007-04-15 22:20:47 +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-upgrade < %s | llvm-as | llc -march=x86 -regalloc=linearscan | \
; RUN: not grep {mov %\[A-Z\]\\\{2,3\\\}, %\[A-Z\]\\\{2,3\\\}}
long %test(long %x) {
entry:
%tmp.1 = mul long %x, 4294967297 ; <long> [#uses=1]
ret long %tmp.1
}