-; RUN: opt < %s -analyze -basicaa -indvars -da | FileCheck %s
+; RUN: opt < %s -analyze -basicaa -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];
+;; for (int i = 0; i < n; i++) {
+;; A[i + 2] = i;
+;; *B++ = 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
+ br i1 %cmp1, label %for.body.preheader, label %for.end
+
+; CHECK: da analyze - none!
; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body.preheader: ; preds = %entry
+ br label %for.body
+
+for.body: ; preds = %for.body.preheader, %for.body
+ %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
+ %0 = add nsw i64 %indvars.iv, 2
+ %arrayidx = getelementptr inbounds i32* %A, i64 %0
+ %1 = trunc i64 %indvars.iv to i32
+ store i32 %1, i32* %arrayidx, align 4
+ %arrayidx3 = getelementptr inbounds i32* %A, i64 %indvars.iv
+ %2 = load i32* %arrayidx3, align 4
%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
+ store i32 %2, i32* %B.addr.02, align 4
+ %indvars.iv.next = add i64 %indvars.iv, 1
+ %exitcond = icmp ne i64 %indvars.iv.next, %n
+ br i1 %exitcond, label %for.body, label %for.end.loopexit
-for.end: ; preds = %for.body, %entry
+for.end.loopexit: ; preds = %for.body
+ br label %for.end
+
+for.end: ; preds = %for.end.loopexit, %entry
ret void
}
-;; for (long int i = 0; i < n; i++)
-;; A[i + 2] = ...
-;; ... = A[i];
+;; for (long int i = 0; i < n; i++) {
+;; A[i + 2] = i;
+;; *B++ = 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
+ br i1 %cmp1, label %for.body.preheader, label %for.end
+
+; CHECK: da analyze - none!
+; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body.preheader: ; preds = %entry
+ %0 = sext i32 %n to i64
+ br 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 ]
+for.body: ; preds = %for.body.preheader, %for.body
+ %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
%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]!
+ %1 = load i32* %arrayidx3, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
- store i32 %0, i32* %B.addr.02, align 4
+ store i32 %1, 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
+ %exitcond = icmp ne i64 %inc, %0
+ br i1 %exitcond, label %for.body, label %for.end.loopexit
-for.end: ; preds = %for.body, %entry
+for.end.loopexit: ; preds = %for.body
+ br label %for.end
+
+for.end: ; preds = %for.end.loopexit, %entry
ret void
}
-;; for (long unsigned i = 0; i < n; i++)
-;; A[i + 2] = ...
-;; ... = A[i];
+;; for (long unsigned i = 0; i < n; i++) {
+;; A[i + 2] = i;
+;; *B++ = 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
+ br i1 %cmp1, label %for.end, label %for.body.preheader
-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 ]
+; CHECK: da analyze - none!
+; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body.preheader: ; preds = %entry
+ br label %for.body
+
+for.body: ; preds = %for.body.preheader, %for.body
+ %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
%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
+ %exitcond = icmp ne i64 %inc, %n
+ br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit: ; preds = %for.body
+ br label %for.end
-for.end: ; preds = %for.body, %entry
+for.end: ; preds = %for.end.loopexit, %entry
ret void
}
-;; for (int i = 0; i < n; i++)
-;; A[i + 2] = ...
-;; ... = A[i];
+;; for (int i = 0; i < n; i++) {
+;; A[i + 2] = i;
+;; *B++ = 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
+ br i1 %cmp1, label %for.body.preheader, label %for.end
+
+; CHECK: da analyze - none!
; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body.preheader: ; preds = %entry
+ br label %for.body
+
+for.body: ; preds = %for.body.preheader, %for.body
+ %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
+ %0 = add nsw i64 %indvars.iv, 2
+ %arrayidx = getelementptr inbounds i32* %A, i64 %0
+ %1 = trunc i64 %indvars.iv to i32
+ store i32 %1, i32* %arrayidx, align 4
+ %arrayidx2 = getelementptr inbounds i32* %A, i64 %indvars.iv
+ %2 = load i32* %arrayidx2, align 4
%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
+ store i32 %2, i32* %B.addr.02, align 4
+ %indvars.iv.next = add i64 %indvars.iv, 1
+ %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+ %exitcond = icmp ne i32 %lftr.wideiv, %n
+ br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit: ; preds = %for.body
+ br label %for.end
-for.end: ; preds = %for.body, %entry
+for.end: ; preds = %for.end.loopexit, %entry
ret void
}
-;; for (long unsigned i = 0; i < 19; i++)
-;; A[i + 19] = ...
-;; ... = A[i];
+;; for (long unsigned i = 0; i < 19; i++) {
+;; A[i + 19] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
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
+ %exitcond = icmp ne i64 %inc, 19
+ br i1 %exitcond, 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];
+;; for (long unsigned i = 0; i < 20; i++) {
+;; A[i + 19] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - consistent flow [19]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
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
+ %exitcond = icmp ne i64 %inc, 20
+ br i1 %exitcond, 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];
+;; for (long unsigned i = 0; i < 20; i++) {
+;; A[2*i + 6] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - consistent flow [3]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
%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
+ %exitcond = icmp ne i64 %inc, 20
+ br i1 %exitcond, 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];
+;; for (long unsigned i = 0; i < 20; i++) {
+;; A[2*i + 7] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
%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
+ %exitcond = icmp ne i64 %inc, 20
+ br i1 %exitcond, 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];
+;; for (long unsigned i = 0; i < 20; i++) {
+;; A[i + n] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - consistent flow [%n|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
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
+ %exitcond = icmp ne i64 %inc, 20
+ br i1 %exitcond, 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];
+;; for (long unsigned i = 0; i < n; i++) {
+;; A[i + n] = i;
+;; *B++ = 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
+ br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - none!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
-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 ]
+for.body.preheader: ; preds = %entry
+ br label %for.body
+
+for.body: ; preds = %for.body.preheader, %for.body
+ %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+ %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
%conv = trunc i64 %i.03 to i32
%add = add i64 %i.03, %n
%arrayidx = getelementptr inbounds i32* %A, i64 %add
%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
+ %exitcond = icmp ne i64 %inc, %n
+ br i1 %exitcond, label %for.body, label %for.end.loopexit
-for.end: ; preds = %for.body, %entry
+for.end.loopexit: ; preds = %for.body
+ br label %for.end
+
+for.end: ; preds = %for.end.loopexit, %entry
ret void
}
-;; for (long unsigned i = 0; i < 1000; i++)
-;; A[n*i + 5] = ...
-;; ... = A[n*i + 5];
+;; for (long unsigned i = 0; i < 1000; i++) {
+;; A[n*i + 5] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - consistent flow [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
%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
+ %exitcond = icmp ne i64 %inc, 1000
+ br i1 %exitcond, label %for.body, label %for.end
for.end: ; preds = %for.body
ret void
projects / oota-llvm.git / blobdiff