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-rw-r--r--test/Analysis/DependenceAnalysis/StrongSIV.ll342
1 files changed, 342 insertions, 0 deletions
diff --git a/test/Analysis/DependenceAnalysis/StrongSIV.ll b/test/Analysis/DependenceAnalysis/StrongSIV.ll
new file mode 100644
index 0000000000000..be336c3580ceb
--- /dev/null
+++ b/test/Analysis/DependenceAnalysis/StrongSIV.ll
@@ -0,0 +1,342 @@
+; RUN: opt < %s -analyze -basicaa -indvars -da | FileCheck %s
+
+; ModuleID = 'StrongSIV.bc'
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.6.0"
+
+
+;; for (int i = 0; i < n; i++)
+;; A[i + 2] = ...
+;; ... = A[i];
+
+define void @strong0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ %cmp1 = icmp sgt i64 %n, 0
+ br i1 %cmp1, label %for.body, label %for.end
+
+for.body: ; preds = %for.body, %entry
+ %i.03 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+ %add = add nsw i32 %i.03, 2
+ %idxprom = sext i32 %add to i64
+ %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
+ store i32 %i.03, i32* %arrayidx, align 4
+ %idxprom2 = sext i32 %i.03 to i64
+ %arrayidx3 = getelementptr inbounds i32* %A, i64 %idxprom2
+ %0 = load i32* %arrayidx3, align 4
+; CHECK: da analyze - consistent flow [2]!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
+ store i32 %0, i32* %B.addr.02, align 4
+ %inc = add nsw i32 %i.03, 1
+ %conv = sext i32 %inc to i64
+ %cmp = icmp slt i64 %conv, %n
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body, %entry
+ ret void
+}
+
+
+;; for (long int i = 0; i < n; i++)
+;; A[i + 2] = ...
+;; ... = A[i];
+
+define void @strong1(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
+entry:
+ %conv = sext i32 %n to i64
+ %cmp1 = icmp sgt i32 %n, 0
+ br i1 %cmp1, label %for.body, label %for.end
+
+for.body: ; preds = %for.body, %entry
+ %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+ %conv2 = trunc i64 %i.03 to i32
+ %add = add nsw i64 %i.03, 2
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv2, i32* %arrayidx, align 4
+ %arrayidx3 = getelementptr inbounds i32* %A, i64 %i.03
+ %0 = load i32* %arrayidx3, align 4
+; CHECK: da analyze - consistent flow [2]!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
+ store i32 %0, i32* %B.addr.02, align 4
+ %inc = add nsw i64 %i.03, 1
+ %cmp = icmp slt i64 %inc, %conv
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body, %entry
+ ret void
+}
+
+
+;; for (long unsigned i = 0; i < n; i++)
+;; A[i + 2] = ...
+;; ... = A[i];
+
+define void @strong2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ %cmp1 = icmp eq i64 %n, 0
+ br i1 %cmp1, label %for.end, label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+ %conv = trunc i64 %i.03 to i32
+ %add = add i64 %i.03, 2
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv, i32* %arrayidx, align 4
+ %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.03
+ %0 = load i32* %arrayidx1, align 4
+; CHECK: da analyze - consistent flow [2]!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
+ store i32 %0, i32* %B.addr.02, align 4
+ %inc = add i64 %i.03, 1
+ %cmp = icmp ult i64 %inc, %n
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body, %entry
+ ret void
+}
+
+
+;; for (int i = 0; i < n; i++)
+;; A[i + 2] = ...
+;; ... = A[i];
+
+define void @strong3(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
+entry:
+ %cmp1 = icmp sgt i32 %n, 0
+ br i1 %cmp1, label %for.body, label %for.end
+
+for.body: ; preds = %for.body, %entry
+ %i.03 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+ %add = add nsw i32 %i.03, 2
+ %idxprom = sext i32 %add to i64
+ %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
+ store i32 %i.03, i32* %arrayidx, align 4
+ %idxprom1 = sext i32 %i.03 to i64
+ %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1
+ %0 = load i32* %arrayidx2, align 4
+; CHECK: da analyze - consistent flow [2]!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
+ store i32 %0, i32* %B.addr.02, align 4
+ %inc = add nsw i32 %i.03, 1
+ %cmp = icmp slt i32 %inc, %n
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body, %entry
+ ret void
+}
+
+
+;; for (long unsigned i = 0; i < 19; i++)
+;; A[i + 19] = ...
+;; ... = A[i];
+
+define void @strong4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
+ %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
+ %conv = trunc i64 %i.02 to i32
+ %add = add i64 %i.02, 19
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv, i32* %arrayidx, align 4
+ %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02
+ %0 = load i32* %arrayidx1, align 4
+; CHECK: da analyze - none!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
+ store i32 %0, i32* %B.addr.01, align 4
+ %inc = add i64 %i.02, 1
+ %cmp = icmp ult i64 %inc, 19
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body
+ ret void
+}
+
+
+;; for (long unsigned i = 0; i < 20; i++)
+;; A[i + 19] = ...
+;; ... = A[i];
+
+define void @strong5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
+ %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
+ %conv = trunc i64 %i.02 to i32
+ %add = add i64 %i.02, 19
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv, i32* %arrayidx, align 4
+ %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02
+ %0 = load i32* %arrayidx1, align 4
+; CHECK: da analyze - consistent flow [19]!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
+ store i32 %0, i32* %B.addr.01, align 4
+ %inc = add i64 %i.02, 1
+ %cmp = icmp ult i64 %inc, 20
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body
+ ret void
+}
+
+
+;; for (long unsigned i = 0; i < 20; i++)
+;; A[2*i + 6] = ...
+;; ... = A[2*i];
+
+define void @strong6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
+ %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
+ %conv = trunc i64 %i.02 to i32
+ %mul = shl i64 %i.02, 1
+ %add = add i64 %mul, 6
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv, i32* %arrayidx, align 4
+ %mul1 = shl i64 %i.02, 1
+ %arrayidx2 = getelementptr inbounds i32* %A, i64 %mul1
+ %0 = load i32* %arrayidx2, align 4
+; CHECK: da analyze - consistent flow [3]!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
+ store i32 %0, i32* %B.addr.01, align 4
+ %inc = add i64 %i.02, 1
+ %cmp = icmp ult i64 %inc, 20
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body
+ ret void
+}
+
+
+;; for (long unsigned i = 0; i < 20; i++)
+;; A[2*i + 7] = ...
+;; ... = A[2*i];
+
+define void @strong7(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
+ %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
+ %conv = trunc i64 %i.02 to i32
+ %mul = shl i64 %i.02, 1
+ %add = add i64 %mul, 7
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv, i32* %arrayidx, align 4
+ %mul1 = shl i64 %i.02, 1
+ %arrayidx2 = getelementptr inbounds i32* %A, i64 %mul1
+ %0 = load i32* %arrayidx2, align 4
+; CHECK: da analyze - none!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
+ store i32 %0, i32* %B.addr.01, align 4
+ %inc = add i64 %i.02, 1
+ %cmp = icmp ult i64 %inc, 20
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body
+ ret void
+}
+
+
+;; for (long unsigned i = 0; i < 20; i++)
+;; A[i + n] = ...
+;; ... = A[i];
+
+define void @strong8(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
+ %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
+ %conv = trunc i64 %i.02 to i32
+ %add = add i64 %i.02, %n
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv, i32* %arrayidx, align 4
+ %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02
+ %0 = load i32* %arrayidx1, align 4
+; CHECK: da analyze - consistent flow [%n|<]!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
+ store i32 %0, i32* %B.addr.01, align 4
+ %inc = add i64 %i.02, 1
+ %cmp = icmp ult i64 %inc, 20
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body
+ ret void
+}
+
+
+;; for (long unsigned i = 0; i < n; i++)
+;; A[i + n] = ...
+;; ... = A[i + 2*n];
+
+define void @strong9(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ %cmp1 = icmp eq i64 %n, 0
+ br i1 %cmp1, label %for.end, label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+ %conv = trunc i64 %i.03 to i32
+ %add = add i64 %i.03, %n
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv, i32* %arrayidx, align 4
+ %mul = shl i64 %n, 1
+ %add1 = add i64 %i.03, %mul
+ %arrayidx2 = getelementptr inbounds i32* %A, i64 %add1
+ %0 = load i32* %arrayidx2, align 4
+; CHECK: da analyze - none!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
+ store i32 %0, i32* %B.addr.02, align 4
+ %inc = add i64 %i.03, 1
+ %cmp = icmp ult i64 %inc, %n
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body, %entry
+ ret void
+}
+
+
+;; for (long unsigned i = 0; i < 1000; i++)
+;; A[n*i + 5] = ...
+;; ... = A[n*i + 5];
+
+define void @strong10(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
+ %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
+ %conv = trunc i64 %i.02 to i32
+ %mul = mul i64 %i.02, %n
+ %add = add i64 %mul, 5
+ %arrayidx = getelementptr inbounds i32* %A, i64 %add
+ store i32 %conv, i32* %arrayidx, align 4
+ %mul1 = mul i64 %i.02, %n
+ %add2 = add i64 %mul1, 5
+ %arrayidx3 = getelementptr inbounds i32* %A, i64 %add2
+ %0 = load i32* %arrayidx3, align 4
+; CHECK: da analyze - consistent flow [0|<]!
+ %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
+ store i32 %0, i32* %B.addr.01, align 4
+ %inc = add i64 %i.02, 1
+ %cmp = icmp ult i64 %inc, 1000
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body
+ ret void
+}
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