1; RUN: opt < %s -passes=loop-interchange -cache-line-size=64 -pass-remarks-missed='loop-interchange' -pass-remarks-output=%t -S \ 2; RUN: -verify-dom-info -verify-loop-info -verify-loop-lcssa 2>&1 | FileCheck -check-prefix=IR %s 3; RUN: FileCheck --input-file=%t %s 4 5; Outer loop only reductions are not supported currently. 6 7@A = common global [500 x [500 x i32]] zeroinitializer 8 9;; global X 10 11;; for( int i=1;i<N;i++) { 12;; for( int j=1;j<N;j++) 13;; ; 14;; X+=A[j][i]; 15;; } 16 17; CHECK: --- !Missed 18; CHECK-NEXT: Pass: loop-interchange 19; CHECK-NEXT: Name: UnsupportedPHI 20; CHECK-NEXT: Function: reduction_01 21 22; IR-LABEL: @reduction_01( 23; IR-NOT: split 24 25define i32 @reduction_01(i32 %N) { 26entry: 27 br label %outer.header 28 29outer.header: ; preds = %for.cond1.for.inc6_crit_edge, %entry 30 %indvars.iv18 = phi i64 [ %indvars.iv.next19, %outer.inc ], [ 1, %entry ] 31 %add15 = phi i32 [ 0, %entry ], [ %add, %outer.inc ] 32 br label %for.body3 33 34for.body3: ; preds = %for.body3, %for.body3.lr.ph 35 %indvars.iv = phi i64 [ 1, %outer.header ], [ %indvars.iv.next, %for.body3 ] 36 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 37 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 38 %exitcond = icmp eq i32 %lftr.wideiv, %N 39 br i1 %exitcond, label %outer.inc, label %for.body3 40 41outer.inc: ; preds = %for.body3 42 %arrayidx5 = getelementptr inbounds [500 x [500 x i32]], ptr @A, i64 0, i64 %indvars.iv, i64 %indvars.iv18 43 %0 = load i32, ptr %arrayidx5 44 %add = add nsw i32 %add15, %0 45 %indvars.iv.next19 = add nuw nsw i64 %indvars.iv18, 1 46 %lftr.wideiv20 = trunc i64 %indvars.iv.next19 to i32 47 %exitcond21 = icmp eq i32 %lftr.wideiv20, %N 48 br i1 %exitcond21, label %for.end8, label %outer.header 49 50for.end8: ; preds = %for.cond1.for.inc6_crit_edge, %entry 51 ret i32 %add 52} 53