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Diffstat (limited to 'test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll')
-rw-r--r-- | test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll b/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll new file mode 100644 index 00000000000..343e8f49bf9 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll @@ -0,0 +1,220 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'WeakCrossingSIV.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 (long unsigned i = 0; i < n; i++) +;; A[1 + n*i] = ... +;; ... = A[1 - n*i]; + +define void @weakcrossing0(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 + %mul = mul i64 %i.03, %n + %add = add i64 %mul, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul1 = mul i64 %i.03, %n + %sub = sub i64 1, %mul1 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [0|<]! + %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 < n; i++) +;; A[n + i] = ... +;; ... = A[1 + n - i]; + +define void @weakcrossing1(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 + %add1 = add i64 %n, 1 + %sub = sub i64 %add1, %i.03 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [<>] splitable! +; CHECK: da analyze - split level = 1, iteration = 0! + %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 < 3; i++) +;; A[i] = ... +;; ... = A[6 - i]; + +define void @weakcrossing2(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 + %arrayidx = getelementptr inbounds i32* %A, i64 %i.02 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 6, %i.02 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub + %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, 3 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 4; i++) +;; A[i] = ... +;; ... = A[6 - i]; + +define void @weakcrossing3(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 + %arrayidx = getelementptr inbounds i32* %A, i64 %i.02 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 6, %i.02 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - 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, 4 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 10; i++) +;; A[i] = ... +;; ... = A[-6 - i]; + +define void @weakcrossing4(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 + %arrayidx = getelementptr inbounds i32* %A, i64 %i.02 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 -6, %i.02 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub + %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, 10 + 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[3*i] = ... +;; ... = A[5 - 3*i]; + +define void @weakcrossing5(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 + %mul = mul i64 %i.03, 3 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %0 = mul i64 %i.03, -3 + %sub = add i64 %0, 5 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub + %1 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %1, 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 < 4; i++) +;; A[i] = ... +;; ... = A[5 - i]; + +define void @weakcrossing6(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 + %arrayidx = getelementptr inbounds i32* %A, i64 %i.02 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 5, %i.02 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [<>] splitable! +; CHECK: da analyze - split level = 1, iteration = 2! + %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, 4 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} |