blob: 9c002b4353efcab5d7bffa469c370e6030b78335 [file] [log] [blame]
; RUN: opt %loadPolly -polly-dependences -analyze < %s | FileCheck %s
;
; CHECK: RAW dependences:
; CHECK-NEXT: { Stmt_S2[i0, 0] -> Stmt_S1[1 + i0, 0] : 0 <= i0 <= 97; Stmt_S1[i0, 0] -> Stmt_S2[i0, 0] : 0 <= i0 <= 98 }
; CHECK-NEXT: WAR dependences:
; CHECK-NEXT: { Stmt_S2[i0, 0] -> Stmt_S1[1 + i0, 0] : 0 <= i0 <= 97; Stmt_S1[i0, 0] -> Stmt_S2[i0, 0] : 0 <= i0 <= 98 }
; CHECK-NEXT: WAW dependences:
; CHECK-NEXT: { Stmt_S2[i0, 0] -> Stmt_S1[1 + i0, 0] : 0 <= i0 <= 97; Stmt_S1[i0, 0] -> Stmt_S2[i0, 0] : 0 <= i0 <= 98 }
; CHECK-NEXT: Reduction dependences:
; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S2[1 + i0, i1] : 0 <= i0 <= 97 and 0 < i1 <= 99 }
;
; void f(int *sum) {
; for (int i = 0; i < 99; i++) {
; for (int j = 0; j < 1; j++)
; S1: sum[j] += 42;
; for (int j = 0; j < 100; j++)
; S2: sum[j] += i * j;
; }
; }
;
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.inc12, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc13, %for.inc12 ]
%exitcond2 = icmp ne i32 %i.0, 99
br i1 %exitcond2, label %for.body, label %for.end14
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, 1
br i1 %exitcond, label %for.body3, label %for.end
for.body3: ; preds = %for.cond1
br label %S1
S1: ; preds = %for.body3
%arrayidx = getelementptr inbounds i32, i32* %sum, i32 %j.0
%tmp = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %tmp, 42
store i32 %add, i32* %arrayidx, align 4
br label %for.inc
for.inc: ; preds = %S1
%inc = add nsw i32 %j.0, 1
br label %for.cond1
for.end: ; preds = %for.cond1
br label %for.cond4
for.cond4: ; preds = %for.inc9, %for.end
%j.1 = phi i32 [ 0, %for.end ], [ %inc10, %for.inc9 ]
%exitcond1 = icmp ne i32 %j.1, 100
br i1 %exitcond1, label %for.body6, label %for.end11
for.body6: ; preds = %for.cond4
br label %S2
S2: ; preds = %for.body6
%mul = mul nsw i32 %i.0, %j.1
%arrayidx7 = getelementptr inbounds i32, i32* %sum, i32 %j.1
%tmp3 = load i32, i32* %arrayidx7, align 4
%add8 = add nsw i32 %tmp3, %mul
store i32 %add8, i32* %arrayidx7, align 4
br label %for.inc9
for.inc9: ; preds = %S2
%inc10 = add nsw i32 %j.1, 1
br label %for.cond4
for.end11: ; preds = %for.cond4
br label %for.inc12
for.inc12: ; preds = %for.end11
%inc13 = add nsw i32 %i.0, 1
br label %for.cond
for.end14: ; preds = %for.cond
ret void
}