reduction_multiple_loops_array_sum.ll
2.28 KB
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; RUN: opt -basicaa %loadPolly -polly-scops -analyze < %s | FileCheck %s
;
; CHECK: Stmt_for_body
; CHECK: Reduction Type: *
; CHECK: MemRef_sum
; CHECK: Reduction Type: *
; CHECK: MemRef_sum
; CHECK: Stmt_for_body3
; CHECK: Reduction Type: NONE
; CHECK: MemRef_A
; CHECK: Reduction Type: +
; CHECK: MemRef_sum
; CHECK: Reduction Type: +
; CHECK: MemRef_sum
; CHECK: Stmt_for_end
; CHECK: Reduction Type: *
; CHECK: MemRef_sum
; CHECK: Reduction Type: *
; CHECK: MemRef_sum
;
; void f(int *restrict A, int *restrict sum) {
; int i, j;
; for (i = 0; i < 100; i++) {
; *sum *= 7;
; for (j = 0; j < 100; j++) {
; *sum += A[i + j];
; }
; *sum *= 5;
; }
; }
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
define void @f(i32* noalias %A, i32* noalias %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, 100
br i1 %exitcond1, label %for.body, label %for.end8
for.body: ; preds = %for.cond
%tmp = load i32, i32* %sum, align 4
%mul = mul nsw i32 %tmp, 7
store i32 %mul, i32* %sum, align 4
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, 100
br i1 %exitcond, label %for.body3, label %for.end
for.body3: ; preds = %for.cond1
%add = add nsw i32 %i.0, %j.0
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add
%tmp2 = load i32, i32* %arrayidx, align 4
%tmp3 = load i32, i32* %sum, align 4
%add4 = add nsw i32 %tmp3, %tmp2
store i32 %add4, i32* %sum, 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
%tmp4 = load i32, i32* %sum, align 4
%mul5 = mul nsw i32 %tmp4, 5
store i32 %mul5, i32* %sum, align 4
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
}