Remove LoopDependenceAnalysis.

It was unmaintained and not much more than a stub. The new DependenceAnalysis
pass is both more general and complete.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166810 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 0 insertions, 392 deletions

diff --git a/test/Analysis/LoopDependenceAnalysis/alias.ll b/test/Analysis/LoopDependenceAnalysis/alias.ll
deleted file mode 100644
index 78d0bf4fee..0000000000
--- a/test/Analysis/LoopDependenceAnalysis/alias.ll
+++ /dev/null
@@ -1,44 +0,0 @@
-; RUN: opt < %s -analyze -basicaa -lda | FileCheck %s
-
-;; x[5] = x[6] // with x being a pointer passed as argument
-
-define void @f1(i32* nocapture %xptr) nounwind {
-entry:
-  %x.ld.addr = getelementptr i32* %xptr, i64 6
-  %x.st.addr = getelementptr i32* %xptr, i64 5
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %x = load i32* %x.ld.addr
-  store i32 %x, i32* %x.st.addr
-; CHECK: 0,1: dep
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; x[5] = x[6] // with x being an array on the stack
-
-define void @foo(...) nounwind {
-entry:
-  %xptr = alloca [256 x i32], align 4
-  %x.ld.addr = getelementptr [256 x i32]* %xptr, i64 0, i64 6
-  %x.st.addr = getelementptr [256 x i32]* %xptr, i64 0, i64 5
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %x = load i32* %x.ld.addr
-  store i32 %x, i32* %x.st.addr
-; CHECK: 0,1: ind
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
diff --git a/test/Analysis/LoopDependenceAnalysis/lit.local.cfg b/test/Analysis/LoopDependenceAnalysis/lit.local.cfg
deleted file mode 100644
index 19eebc0ac7..0000000000
--- a/test/Analysis/LoopDependenceAnalysis/lit.local.cfg
+++ /dev/null
@@ -1 +0,0 @@
-config.suffixes = ['.ll', '.c', '.cpp']
diff --git a/test/Analysis/LoopDependenceAnalysis/siv-strong.ll b/test/Analysis/LoopDependenceAnalysis/siv-strong.ll
deleted file mode 100644
index 401e466d66..0000000000
--- a/test/Analysis/LoopDependenceAnalysis/siv-strong.ll
+++ /dev/null
@@ -1,110 +0,0 @@
-; RUN: opt < %s -analyze -basicaa -lda | FileCheck %s
-
-@x = common global [256 x i32] zeroinitializer, align 4
-@y = common global [256 x i32] zeroinitializer, align 4
-
-;; for (i = 0; i < 256; i++)
-;;   x[i] = x[i] + y[i]
-
-define void @f1(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %y.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i
-  %x.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i
-  %x = load i32* %x.addr      ; 0
-  %y = load i32* %y.addr      ; 1
-  %r = add i32 %y, %x
-  store i32 %r, i32* %x.addr  ; 2
-; CHECK: 0,2: dep
-; CHECK: 1,2: ind
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; for (i = 0; i < 256; i++)
-;;   x[i+1] = x[i] + y[i]
-
-define void @f2(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i
-  %i.next = add i64 %i, 1
-  %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.next
-  %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
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; for (i = 0; i < 10; i++)
-;;   x[i+20] = x[i] + y[i]
-
-define void @f3(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i
-  %i.20 = add i64 %i, 20
-  %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.20
-  %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
-}
-
-;; 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
-}
diff --git a/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll b/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll
deleted file mode 100644
index 9d0128c5fe..0000000000
--- a/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll
+++ /dev/null
@@ -1,118 +0,0 @@
-; RUN: opt < %s -analyze -basicaa -lda | FileCheck %s
-
-@x = common global [256 x i32] zeroinitializer, align 4
-@y = common global [256 x i32] zeroinitializer, align 4
-
-;; for (i = 0; i < 256; i++)
-;;   x[i] = x[255 - i] + y[i]
-
-define void @f1(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %i.255 = sub i64 255, %i
-  %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.255
-  %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i
-  %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, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; for (i = 0; i < 100; i++)
-;;   x[i] = x[255 - i] + y[i]
-
-define void @f2(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %i.255 = sub i64 255, %i
-  %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.255
-  %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i
-  %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, 100
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; // the first iteration (i=0) leads to an out-of-bounds access of x. as the
-;; // result of this access is undefined, _any_ dependence result is safe.
-;; for (i = 0; i < 256; i++)
-;;   x[i] = x[256 - i] + y[i]
-
-define void @f3(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %i.256 = sub i64 0, %i
-  %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 1, i64 %i.256
-  %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i
-  %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:
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; // slightly contrived but valid IR for the following loop, where all
-;; // accesses in all iterations are within bounds. while this example's first
-;; // (ZIV-)subscript is (0, 1), accesses are dependent.
-;; for (i = 1; i < 256; i++)
-;;   x[i] = x[256 - i] + y[i]
-
-define void @f4(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %i.1 = add i64 1, %i
-  %i.256 = sub i64 -1, %i
-  %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i.1
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 1, i64 %i.256
-  %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.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, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
diff --git a/test/Analysis/LoopDependenceAnalysis/siv-weak-zero.ll b/test/Analysis/LoopDependenceAnalysis/siv-weak-zero.ll
deleted file mode 100644
index 1c5ae4c490..0000000000
--- a/test/Analysis/LoopDependenceAnalysis/siv-weak-zero.ll
+++ /dev/null
@@ -1,56 +0,0 @@
-; RUN: opt < %s -analyze -basicaa -lda | FileCheck %s
-
-@x = common global [256 x i32] zeroinitializer, align 4
-@y = common global [256 x i32] zeroinitializer, align 4
-
-;; for (i = 0; i < 256; i++)
-;;   x[i] = x[42] + y[i]
-
-define void @f1(...) nounwind {
-entry:
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 42
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %x.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i
-  %y.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i
-  %x = load i32* %x.ld.addr   ; 0
-  %y = load i32* %y.addr      ; 1
-  %r = add i32 %y, %x
-  store i32 %r, i32* %x.addr  ; 2
-; CHECK: 0,2: dep
-; CHECK: 1,2: ind
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; for (i = 0; i < 250; i++)
-;;   x[i] = x[255] + y[i]
-
-define void @f2(...) nounwind {
-entry:
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 255
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %x.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i
-  %y.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i
-  %x = load i32* %x.ld.addr   ; 0
-  %y = load i32* %y.addr      ; 1
-  %r = add i32 %y, %x
-  store i32 %r, i32* %x.addr  ; 2
-; CHECK: 0,2: dep
-; CHECK: 1,2: ind
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 250
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
diff --git a/test/Analysis/LoopDependenceAnalysis/ziv.ll b/test/Analysis/LoopDependenceAnalysis/ziv.ll
deleted file mode 100644
index 645ae7f152..0000000000
--- a/test/Analysis/LoopDependenceAnalysis/ziv.ll
+++ /dev/null
@@ -1,63 +0,0 @@
-; RUN: opt < %s -analyze -basicaa -lda | FileCheck %s
-
-@x = common global [256 x i32] zeroinitializer, align 4
-
-;; x[5] = x[6]
-
-define void @f1(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %x = load i32* getelementptr ([256 x i32]* @x, i32 0, i64 6)
-  store i32 %x, i32* getelementptr ([256 x i32]* @x, i32 0, i64 5)
-; CHECK: 0,1: ind
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; x[c] = x[c+1] // with c being a loop-invariant constant
-
-define void @f2(i64 %c0) nounwind {
-entry:
-  %c1 = add i64 %c0, 1
-  %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %c0
-  %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %c1
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %x = load i32* %x.ld.addr
-  store i32 %x, i32* %x.st.addr
-; CHECK: 0,1: ind
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
-
-;; x[6] = x[6]
-
-define void @f3(...) nounwind {
-entry:
-  br label %for.body
-
-for.body:
-  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
-  %x = load i32* getelementptr ([256 x i32]* @x, i32 0, i64 6)
-  store i32 %x, i32* getelementptr ([256 x i32]* @x, i32 0, i64 6)
-; CHECK: 0,1: dep
-  %i.next = add i64 %i, 1
-  %exitcond = icmp eq i64 %i.next, 256
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}