diff options
Diffstat (limited to 'llvm/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll')
| -rw-r--r-- | llvm/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/llvm/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll b/llvm/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll new file mode 100644 index 00000000000..a59871602b6 --- /dev/null +++ b/llvm/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll @@ -0,0 +1,212 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'WeakZeroDstSIV.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 < 30; i++) +;; A[2*i + 10] = ... +;; ... = A[10]; + +define void @weakzerodst0(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, 10 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [p<=|<]! + %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, 30 + 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[n*i + 10] = ... +;; ... = A[10]; + +define void @weakzerodst1(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, 10 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [p<=|<]! + %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 < 5; i++) +;; A[2*i] = ... +;; ... = A[10]; + +define void @weakzerodst2(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 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %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, 5 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 6; i++) +;; A[2*i] = ... +;; ... = A[10]; + +define void @weakzerodst3(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 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [=>p|<]! + %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, 6 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 7; i++) +;; A[2*i] = ... +;; ... = A[10]; + +define void @weakzerodst4(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 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [*|<]! + %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, 7 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 7; i++) +;; A[2*i] = ... +;; ... = A[-10]; + +define void @weakzerodst5(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 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 -10 + %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, 7 + 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[10]; + +define void @weakzerodst6(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 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, 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 +} |
