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| ; RUN: opt %loadPolly -polly-dependences -analyze < %s | FileCheck %s
;
; CHECK: RAW dependences:
; CHECK-NEXT: { Stmt_for_body3[i0, i1] -> Stmt_for_body3[i0 + i1, o1] : i0 >= 0 and 0 <= i1 <= 1023 - i0 and i1 <= 1 and 0 < o1 <= 511 }
; CHECK-NEXT: WAR dependences:
; CHECK-NEXT: { }
; CHECK-NEXT: WAW dependences:
; CHECK-NEXT: { Stmt_for_body3[i0, i1] -> Stmt_for_body3[1 + i0, -1 + i1] : 0 <= i0 <= 1022 and 2 <= i1 <= 511; Stmt_for_body3[i0, 2] -> Stmt_for_body3[2 + i0, 0] : 0 <= i0 <= 1021 }
; CHECK-NEXT: Reduction dependences:
; CHECK-NEXT: { Stmt_for_body3[i0, 1] -> Stmt_for_body3[1 + i0, 0] : 0 <= i0 <= 1022 }
;
; void f(int *sum) {
; for (int i = 0; i < 1024; i++)
; for (int j = 0; j < 512; j++)
; sum[i + j] = sum[i] + 3;
; }
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
define void @f(i32* %sum) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc6, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc7, %for.inc6 ]
%exitcond1 = icmp ne i32 %i.0, 1024
br i1 %exitcond1, label %for.body, label %for.end8
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.inc, %for.body
%j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
%exitcond = icmp ne i32 %j.0, 512
br i1 %exitcond, label %for.body3, label %for.end
for.body3: ; preds = %for.cond1
%arrayidx = getelementptr inbounds i32, i32* %sum, i32 %i.0
%tmp = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %tmp, 3
%add4 = add nsw i32 %i.0, %j.0
%arrayidx5 = getelementptr inbounds i32, i32* %sum, i32 %add4
store i32 %add, i32* %arrayidx5, align 4
br label %for.inc
for.inc: ; preds = %for.body3
%inc = add nsw i32 %j.0, 1
br label %for.cond1
for.end: ; preds = %for.cond1
br label %for.inc6
for.inc6: ; preds = %for.end
%inc7 = add nsw i32 %i.0, 1
br label %for.cond
for.end8: ; preds = %for.cond
ret void
}
|