WeakCrossingSIV.ll
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; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
; RUN: | FileCheck %s
; 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] = i;
;; *B++ = 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.preheader
for.body.preheader: ; preds = %entry
br label %for.body
; CHECK: da analyze - none!
; CHECK: da analyze - flow [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
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
%mul = mul i64 %i.03, %n
%add = add i64 %mul, 1
%arrayidx = getelementptr inbounds i32, 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, i32* %A, i64 %sub
%0 = load i32, i32* %arrayidx2, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc = add i64 %i.03, 1
%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.end.loopexit, %entry
ret void
}
;; for (long unsigned i = 0; i < n; i++) {
;; A[n + i] = i;
;; *B++ = 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.preheader
; CHECK: da analyze - none!
; CHECK: da analyze - flow [<>] splitable!
; CHECK: da analyze - split level = 1, iteration = 0!
; 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, %n
%arrayidx = getelementptr inbounds i32, 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, i32* %A, i64 %sub
%0 = load i32, i32* %arrayidx2, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc = add i64 %i.03, 1
%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.end.loopexit, %entry
ret void
}
;; for (long unsigned i = 0; i < 3; i++) {
;; A[i] = i;
;; *B++ = A[6 - i];
define void @weakcrossing2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
entry:
br label %for.body
; 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
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.02
store i32 %conv, i32* %arrayidx, align 4
%sub = sub i64 6, %i.02
%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %sub
%0 = load i32, i32* %arrayidx1, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc = add i64 %i.02, 1
%exitcond = icmp ne i64 %inc, 3
br i1 %exitcond, label %for.body, label %for.end
for.end: ; preds = %for.body
ret void
}
;; for (long unsigned i = 0; i < 4; i++) {
;; A[i] = i;
;; *B++ = A[6 - i];
define void @weakcrossing3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - none!
; CHECK: da analyze - 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
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.02
store i32 %conv, i32* %arrayidx, align 4
%sub = sub i64 6, %i.02
%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %sub
%0 = load i32, i32* %arrayidx1, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc = add i64 %i.02, 1
%exitcond = icmp ne i64 %inc, 4
br i1 %exitcond, label %for.body, label %for.end
for.end: ; preds = %for.body
ret void
}
;; for (long unsigned i = 0; i < 10; i++) {
;; A[i] = i;
;; *B++ = A[-6 - i];
define void @weakcrossing4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
entry:
br label %for.body
; 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
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.02
store i32 %conv, i32* %arrayidx, align 4
%sub = sub i64 -6, %i.02
%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %sub
%0 = load i32, i32* %arrayidx1, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc = add i64 %i.02, 1
%exitcond = icmp ne i64 %inc, 10
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[3*i] = i;
;; *B++ = 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.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.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
%mul = mul i64 %i.03, 3
%arrayidx = getelementptr inbounds i32, 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, i32* %A, i64 %sub
%1 = load i32, i32* %arrayidx2, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1
store i32 %1, i32* %B.addr.02, align 4
%inc = add i64 %i.03, 1
%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.end.loopexit, %entry
ret void
}
;; for (long unsigned i = 0; i < 4; i++) {
;; A[i] = i;
;; *B++ = A[5 - i];
define void @weakcrossing6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - none!
; CHECK: da analyze - flow [<>] splitable!
; CHECK: da analyze - split level = 1, iteration = 2!
; 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
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.02
store i32 %conv, i32* %arrayidx, align 4
%sub = sub i64 5, %i.02
%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %sub
%0 = load i32, i32* %arrayidx1, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc = add i64 %i.02, 1
%exitcond = icmp ne i64 %inc, 4
br i1 %exitcond, label %for.body, label %for.end
for.end: ; preds = %for.body
ret void
}