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Add another Strong-SIV testcase. 

llvm-svn: 78446
This commit is contained in:
Andreas Bolka 2009-08-08 00:21:49 +00:00
parent 59b3259284
commit 3becda83ef
1 changed files with 28 additions and 0 deletions
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28
llvm/test/Analysis/LoopDependenceAnalysis/siv-strong.ll
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@ -80,3 +80,31 @@ for.body:
for.end:
ret void
}
;; for (i = 0; i < 10; i++)
;; x[10*i+1] = x[10*i] + y[i]
define void @f4(...) nounwind {
entry:
br label %for.body
for.body:
%i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
%i.10 = mul i64 %i, 10
%y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i.10
%x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.10
%i.10.1 = add i64 %i.10, 1
%x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.10.1
%x = load i32* %x.ld.addr ; 0
%y = load i32* %y.ld.addr ; 1
%r = add i32 %y, %x
store i32 %r, i32* %x.st.addr ; 2
; CHECK: 0,2: dep
; CHECK: 1,2: ind
%i.next = add i64 %i, 1
%exitcond = icmp eq i64 %i.next, 10
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}