max-loop-depth.ll
2.43 KB
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; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
;
; void bar();
; void foo(int *A, int *B, long int N, long int M) {
; for (long int j = 0; j < M; ++j) {
; bar();
; for (long int i = 0; i < N; ++i)
; A[i] += 1;
; for (long int i = 0; i < N; ++i)
; A[i] += 1;
; }
; }
;
; Test to check that the scop only counts loop depth for loops fully contained
; in the scop.
; CHECK: Max Loop Depth: 1
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(i32* %A, i32* %B, i64 %N, i64 %M) {
entry:
%cmp1 = icmp slt i64 0, %M
br i1 %cmp1, label %for.body1, label %for.end1
for.body1: ; preds = %entry, %for.inc1
%j.0 = phi i64 [ 0, %entry ], [ %j.next, %for.inc1 ]
call void (...) @bar() #0
%cmp2 = icmp slt i64 0, %N
br i1 %cmp2, label %for.body2, label %for.end2
for.body2: ; preds = %for.body1, %for.inc2
%i.1 = phi i64 [ 0, %for.body1 ], [ %i.next.1, %for.inc2 ]
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.1
%tmp = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %tmp, 1
store i32 %add, i32* %arrayidx, align 4
br label %for.inc2
for.inc2: ; preds = %for.body2
%i.next.1 = add nuw nsw i64 %i.1, 1
%cmp3 = icmp slt i64 %i.next.1, %N
br i1 %cmp3, label %for.body2, label %for.end2
for.end2: ; preds = %for.inc2, %for.body1
%cmp4 = icmp slt i64 0, %N
br i1 %cmp4, label %for.body3, label %for.end3
for.body3: ; preds = %for.end2
%i.2 = phi i64 [ 0, %for.end2 ], [ %i.next.2, %for.inc3 ]
%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %i.2
%tmp1 = load i32, i32* %arrayidx1, align 4
%add1 = add nsw i32 %tmp1, 1
store i32 %add1, i32* %arrayidx1, align 4
br label %for.inc3
for.inc3: ; preds = %for.body3
%i.next.2 = add nuw nsw i64 %i.2, 1
%cmp5 = icmp slt i64 %i.next.2, %N
br i1 %cmp5, label %for.body3, label %for.end3
for.end3: ; preds = %for.inc3, %for.end2
br label %for.inc1
for.inc1: ; preds = %for.end3
%j.next = add nuw nsw i64 %j.0, 1
%cmp6 = icmp slt i64 %j.next, %M
br i1 %cmp6, label %for.body1, label %for.end1
for.end1: ; preds = %entry, %for.inc1
ret void
}
declare void @bar(...) #0