forked from OSchip/llvm-project
109 lines
4.1 KiB
LLVM
109 lines
4.1 KiB
LLVM
; RUN: opt %loadPolly -polly-dependences -analyze < %s | FileCheck %s
|
|
;
|
|
; CHECK: RAW dependences:
|
|
; CHECK-NEXT: { Stmt_S1[i0, i1] -> Stmt_S2[-1 + i0 + i1] : 0 <= i0 <= 1023 and i1 >= 0 and -i0 < i1 <= 1024 - i0 and i1 <= 1023; Stmt_S0[i0] -> Stmt_S1[o0, i0 - o0] : i0 <= 1023 and 0 <= o0 <= i0 }
|
|
; CHECK-NEXT: WAR dependences:
|
|
; CHECK-NEXT: { Stmt_S1[i0, i1] -> Stmt_S2[i0 + i1] : i0 >= 0 and 0 <= i1 <= 1023 - i0; Stmt_S2[i0] -> Stmt_S2[1 + i0] : 0 <= i0 <= 1022 }
|
|
; CHECK-NEXT: WAW dependences:
|
|
; CHECK-NEXT: { Stmt_S1[i0, i1] -> Stmt_S2[i0 + i1] : i0 >= 0 and 0 <= i1 <= 1023 - i0; Stmt_S0[i0] -> Stmt_S1[o0, i0 - o0] : i0 <= 1023 and 0 <= o0 <= i0 }
|
|
; CHECK-NEXT: Reduction dependences:
|
|
; CHECK-NEXT: { Stmt_S1[i0, i1] -> Stmt_S1[1 + i0, -1 + i1] : 0 <= i0 <= 1022 and 0 < i1 <= 1023 }
|
|
;
|
|
; void f(int *sum) {
|
|
; for (int i = 0; i < 1024; i++)
|
|
; S0: sum[i] = 0;
|
|
; for (int i = 0; i < 1024; i++)
|
|
; for (int j = 0; j < 1024; j++)
|
|
; S1: sum[i + j] += i;
|
|
; for (int i = 0; i < 1024; i++)
|
|
; S2: sum[i] = sum[i + 1] * 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.inc, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
|
|
%exitcond3 = icmp ne i32 %i.0, 1024
|
|
br i1 %exitcond3, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
br label %S0
|
|
|
|
S0: ; preds = %for.body
|
|
%arrayidx = getelementptr inbounds i32, i32* %sum, i32 %i.0
|
|
store i32 0, i32* %arrayidx, align 4
|
|
br label %for.inc
|
|
|
|
for.inc: ; preds = %S0
|
|
%inc = add nsw i32 %i.0, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
br label %for.cond2
|
|
|
|
for.cond2: ; preds = %for.inc13, %for.end
|
|
%i1.0 = phi i32 [ 0, %for.end ], [ %inc14, %for.inc13 ]
|
|
%exitcond2 = icmp ne i32 %i1.0, 1024
|
|
br i1 %exitcond2, label %for.body4, label %for.end15
|
|
|
|
for.body4: ; preds = %for.cond2
|
|
br label %for.cond5
|
|
|
|
for.cond5: ; preds = %for.inc10, %for.body4
|
|
%j.0 = phi i32 [ 0, %for.body4 ], [ %inc11, %for.inc10 ]
|
|
%exitcond1 = icmp ne i32 %j.0, 1024
|
|
br i1 %exitcond1, label %for.body7, label %for.end12
|
|
|
|
for.body7: ; preds = %for.cond5
|
|
br label %S1
|
|
|
|
S1: ; preds = %for.body7
|
|
%add = add nsw i32 %i1.0, %j.0
|
|
%arrayidx8 = getelementptr inbounds i32, i32* %sum, i32 %add
|
|
%tmp = load i32, i32* %arrayidx8, align 4
|
|
%add9 = add nsw i32 %tmp, %i1.0
|
|
store i32 %add9, i32* %arrayidx8, align 4
|
|
br label %for.inc10
|
|
|
|
for.inc10: ; preds = %S1
|
|
%inc11 = add nsw i32 %j.0, 1
|
|
br label %for.cond5
|
|
|
|
for.end12: ; preds = %for.cond5
|
|
br label %for.inc13
|
|
|
|
for.inc13: ; preds = %for.end12
|
|
%inc14 = add nsw i32 %i1.0, 1
|
|
br label %for.cond2
|
|
|
|
for.end15: ; preds = %for.cond2
|
|
br label %for.cond17
|
|
|
|
for.cond17: ; preds = %for.inc23, %for.end15
|
|
%i16.0 = phi i32 [ 0, %for.end15 ], [ %inc24, %for.inc23 ]
|
|
%exitcond = icmp ne i32 %i16.0, 1024
|
|
br i1 %exitcond, label %for.body19, label %for.end25
|
|
|
|
for.body19: ; preds = %for.cond17
|
|
br label %S2
|
|
|
|
S2: ; preds = %for.body19
|
|
%add20 = add nsw i32 %i16.0, 1
|
|
%arrayidx21 = getelementptr inbounds i32, i32* %sum, i32 %add20
|
|
%tmp4 = load i32, i32* %arrayidx21, align 4
|
|
%mul = mul nsw i32 %tmp4, 3
|
|
%arrayidx22 = getelementptr inbounds i32, i32* %sum, i32 %i16.0
|
|
store i32 %mul, i32* %arrayidx22, align 4
|
|
br label %for.inc23
|
|
|
|
for.inc23: ; preds = %S2
|
|
%inc24 = add nsw i32 %i16.0, 1
|
|
br label %for.cond17
|
|
|
|
for.end25: ; preds = %for.cond17
|
|
ret void
|
|
}
|