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1; REQUIRES: asserts2; RUN: opt < %s -passes=loop-interchange -pass-remarks-missed='loop-interchange' -pass-remarks-output=%t -S \3; RUN: -verify-dom-info -verify-loop-info 2>&14; RUN: FileCheck --input-file=%t %s5 6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"7 8@A = common global [100 x [100 x i32]] zeroinitializer9 10declare void @foo(i64 %a)11declare void @bar(i64 %a) readnone12 13;;--------------------------------------Test case 01------------------------------------14;; Not safe to interchange, because the called function `foo` is not marked as15;; readnone, so it could introduce dependences.16;;17;; for(int i=0;i<100;i++) {18;; for(int j=1;j<100;j++) {19;; foo(i);20;; A[j][i] = A[j][i]+k;21;; }22;; }23 24; CHECK: --- !Missed25; CHECK-NEXT: Pass: loop-interchange26; CHECK-NEXT: Name: CallInst27; CHECK-NEXT: Function: interchange_0128; CHECK-NEXT: Args:29; CHECK-NEXT: - String: Cannot interchange loops due to call instruction.30 31define void @interchange_01(i32 %k) {32entry:33 br label %for1.header34 35for1.header:36 %indvars.iv23 = phi i64 [ 0, %entry ], [ %indvars.iv.next24, %for1.inc10 ]37 br label %for238 39for2:40 %indvars.iv = phi i64 [ %indvars.iv.next, %for2 ], [ 1, %for1.header ]41 call void @foo(i64 %indvars.iv23)42 %arrayidx5 = getelementptr inbounds [100 x [100 x i32]], ptr @A, i64 0, i64 %indvars.iv, i64 %indvars.iv2343 %lv = load i32, ptr %arrayidx544 %add = add nsw i32 %lv, %k45 store i32 %add, ptr %arrayidx546 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 147 %exitcond = icmp eq i64 %indvars.iv, 9948 br i1 %exitcond, label %for2.loopexit , label %for249 50for2.loopexit:51 br label %for1.inc1052 53for1.inc10:54 %indvars.iv.next24 = add nuw nsw i64 %indvars.iv23, 155 %exitcond26 = icmp eq i64 %indvars.iv23, 9956 br i1 %exitcond26, label %for1.loopexit, label %for1.header57 58for1.loopexit:59 br label %exit60 61exit:62 ret void63}64