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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -loop-reduce %s -S | FileCheck %s3 4target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"5target triple = "x86_64-apple-macosx10.15.0"6 7; Tests for crashes during SCEV expansion.8 9%struct.hoge = type { i32, i32, i32, i32 }10 11define i64 @blam(ptr %start, ptr %end, ptr %ptr.2) {12; CHECK-LABEL: @blam(13; CHECK-NEXT: entry:14; CHECK-NEXT: [[START1:%.*]] = ptrtoint ptr [[START:%.*]] to i6415; CHECK-NEXT: br label [[LOOP_1_HEADER:%.*]]16; CHECK: loop.1.header:17; CHECK-NEXT: [[LSR_IV4:%.*]] = phi i64 [ [[LSR_IV_NEXT5:%.*]], [[LOOP_1_HEADER]] ], [ [[START1]], [[ENTRY:%.*]] ]18; CHECK-NEXT: [[IV:%.*]] = phi ptr [ [[IV_NEXT:%.*]], [[LOOP_1_HEADER]] ], [ [[START]], [[ENTRY]] ]19; CHECK-NEXT: [[IV_NEXT]] = getelementptr inbounds [[STRUCT_HOGE:%.*]], ptr [[IV]], i64 120; CHECK-NEXT: [[LSR_IV_NEXT5]] = add nuw i64 [[LSR_IV4]], 1621; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[IV_NEXT]], [[END:%.*]]22; CHECK-NEXT: br i1 [[EC]], label [[LOOP_2_PH:%.*]], label [[LOOP_1_HEADER]]23; CHECK: loop.2.ph:24; CHECK-NEXT: [[LSR_IV_NEXT5_LCSSA:%.*]] = phi i64 [ [[LSR_IV_NEXT5]], [[LOOP_1_HEADER]] ]25; CHECK-NEXT: [[IV_NEXT_LCSSA:%.*]] = phi ptr [ [[IV_NEXT]], [[LOOP_1_HEADER]] ]26; CHECK-NEXT: br label [[LOOP_2_HEADER:%.*]]27; CHECK: loop.2.header:28; CHECK-NEXT: [[LSR_IV2:%.*]] = phi i64 [ [[LSR_IV_NEXT3:%.*]], [[LOOP_2_LATCH:%.*]] ], [ [[LSR_IV_NEXT5_LCSSA]], [[LOOP_2_PH]] ]29; CHECK-NEXT: [[IV2:%.*]] = phi ptr [ [[IV2_NEXT:%.*]], [[LOOP_2_LATCH]] ], [ [[IV_NEXT_LCSSA]], [[LOOP_2_PH]] ]30; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[LSR_IV2]], 1231; CHECK-NEXT: call void @use.i64(i64 [[TMP0]])32; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[IV2]], i64 833; CHECK-NEXT: store i32 10, ptr [[SCEVGEP]], align 834; CHECK-NEXT: [[EC_2:%.*]] = icmp ugt ptr [[IV2]], [[PTR_2:%.*]]35; CHECK-NEXT: br i1 [[EC_2]], label [[LOOP_2_EXIT:%.*]], label [[LOOP_2_LATCH]]36; CHECK: loop.2.latch:37; CHECK-NEXT: [[IV2_NEXT]] = getelementptr inbounds [[STRUCT_HOGE]], ptr [[IV2]], i64 138; CHECK-NEXT: [[LSR_IV_NEXT3]] = add i64 [[LSR_IV2]], 1639; CHECK-NEXT: br label [[LOOP_2_HEADER]]40; CHECK: loop.2.exit:41; CHECK-NEXT: ret i64 [[LSR_IV2]]42;43entry:44 br label %loop.1.header45 46loop.1.header:47 %iv = phi ptr [ %iv.next, %loop.1.header ], [ %start, %entry ]48 %iv.next = getelementptr inbounds %struct.hoge, ptr %iv, i64 149 %ec = icmp eq ptr %iv.next, %end50 br i1 %ec, label %loop.2.ph, label %loop.1.header51 52loop.2.ph:53 br label %loop.2.header54 55loop.2.header:56 %iv2 = phi ptr [ %iv2.next, %loop.2.latch ], [ %iv.next, %loop.2.ph ]57 %tmp7 = getelementptr inbounds %struct.hoge, ptr %iv2, i64 0, i32 358 %tmp8 = ptrtoint ptr %tmp7 to i6459 call void @use.i64(i64 %tmp8)60 %tmp9 = getelementptr inbounds %struct.hoge, ptr %iv2, i64 0, i32 261 store i32 10, ptr %tmp9, align 862 %ec.2 = icmp ugt ptr %iv2, %ptr.263 br i1 %ec.2, label %loop.2.exit, label %loop.2.latch64 65loop.2.latch:66 %iv2.next = getelementptr inbounds %struct.hoge, ptr %iv2, i64 167 br label %loop.2.header68 69loop.2.exit: ; preds = %bb670 %iv2.cast = ptrtoint ptr %iv2 to i6471 ret i64 %iv2.cast72}73 74 75declare void @use.i64(i64)76