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; RUN: opt < %s -loop-rotate -S | FileCheck %s
; RUN: opt < %s -loop-rotate -enable-mssa-loop-dependency=true -verify-memoryssa -S | FileCheck %s
; Test alloca in -loop-rotate.
; We expect a different value for %ptr each iteration (according to the
; definition of alloca). I.e. each @use must be paired with an alloca.
; CHECK: call void @use(i8* %
; CHECK: %ptr = alloca i8
@e = global i16 10
declare void @use(i8*)
define void @test() {
entry:
%end = load i16, i16* @e
br label %loop
loop:
%n.phi = phi i16 [ %n, %loop.fin ], [ 0, %entry ]
%ptr = alloca i8
%cond = icmp eq i16 %n.phi, %end
br i1 %cond, label %exit, label %loop.fin
loop.fin:
%n = add i16 %n.phi, 1
call void @use(i8* %ptr)
br label %loop
exit:
ret void
}
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