110ab29ecSDmitry Makogon; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2*0ec421d0SRoman Lebedev; RUN: opt -S -passes=irce -irce-print-changed-loops=true < %s | FileCheck %s 3b1e9c433SDmitry Makogon 4b1e9c433SDmitry Makogontarget datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2" 5b1e9c433SDmitry Makogontarget triple = "x86_64-unknown-linux-gnu" 6b1e9c433SDmitry Makogon 7b1e9c433SDmitry Makogon; REQUIRES: asserts 8b1e9c433SDmitry Makogon 9b1e9c433SDmitry Makogondefine void @test() { 1010ab29ecSDmitry Makogon; CHECK-LABEL: @test( 1110ab29ecSDmitry Makogon; CHECK-NEXT: bb: 1210ab29ecSDmitry Makogon; CHECK-NEXT: br label [[OUTER_HEADER:%.*]] 1310ab29ecSDmitry Makogon; CHECK: outer_latch: 1410ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP:%.*]] = or i32 [[TMP5:%.*]], 1 1510ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP5]], 1 1610ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP8:%.*]], 0 1710ab29ecSDmitry Makogon; CHECK-NEXT: br i1 [[TMP3]], label [[RET2:%.*]], label [[OUTER_HEADER]] 1810ab29ecSDmitry Makogon; CHECK: outer_header: 1910ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP5]] = phi i32 [ 0, [[BB:%.*]] ], [ [[TMP2]], [[OUTER_LATCH:%.*]] ] 2010ab29ecSDmitry Makogon; CHECK-NEXT: br label [[INNER_HEADER:%.*]] 2110ab29ecSDmitry Makogon; CHECK: inner_exit: 2210ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP12_LCSSA:%.*]] = phi i32 [ [[TMP12:%.*]], [[INNER_HEADER]] ] 2310ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP7:%.*]] = or i32 [[TMP12_LCSSA]], [[TMP5]] 2410ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP8]] = add nuw i32 [[TMP12_LCSSA]], [[TMP5]] 2510ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP9:%.*]] = icmp ult i32 [[TMP5]], 0 2610ab29ecSDmitry Makogon; CHECK-NEXT: br i1 [[TMP9]], label [[OUTER_LATCH]], label [[RET1:%.*]] 2710ab29ecSDmitry Makogon; CHECK: ret1: 2810ab29ecSDmitry Makogon; CHECK-NEXT: ret void 2910ab29ecSDmitry Makogon; CHECK: inner_header: 3010ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP12]] = phi i32 [ [[TMP14:%.*]], [[INNER_HEADER]] ], [ 0, [[OUTER_HEADER]] ] 3110ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP13:%.*]] = or i32 [[TMP12]], 1 3210ab29ecSDmitry Makogon; CHECK-NEXT: [[TMP14]] = add nuw nsw i32 [[TMP12]], 1 3310ab29ecSDmitry Makogon; CHECK-NEXT: br i1 true, label [[INNER_EXIT:%.*]], label [[INNER_HEADER]] 3410ab29ecSDmitry Makogon; CHECK: ret2: 3510ab29ecSDmitry Makogon; CHECK-NEXT: ret void 3610ab29ecSDmitry Makogon; 37b1e9c433SDmitry Makogonbb: 38b1e9c433SDmitry Makogon br label %outer_header 39b1e9c433SDmitry Makogon 40b1e9c433SDmitry Makogonouter_latch: ; preds = %inner_exit 41b1e9c433SDmitry Makogon %tmp = or i32 %tmp5, 1 42b1e9c433SDmitry Makogon %tmp2 = add nuw nsw i32 %tmp5, 1 43b1e9c433SDmitry Makogon %tmp3 = icmp eq i32 %tmp8, 0 44b1e9c433SDmitry Makogon br i1 %tmp3, label %ret2, label %outer_header 45b1e9c433SDmitry Makogon 46b1e9c433SDmitry Makogonouter_header: ; preds = %outer_latch, %bb 47b1e9c433SDmitry Makogon %tmp5 = phi i32 [ 0, %bb ], [ %tmp2, %outer_latch ] 48b1e9c433SDmitry Makogon br label %inner_header 49b1e9c433SDmitry Makogon 50b1e9c433SDmitry Makogoninner_exit: ; preds = %inner_header 51b1e9c433SDmitry Makogon %tmp12.lcssa = phi i32 [ %tmp12, %inner_header ] 52b1e9c433SDmitry Makogon %tmp7 = or i32 %tmp12.lcssa, %tmp5 53b1e9c433SDmitry Makogon %tmp8 = add nuw i32 %tmp12.lcssa, %tmp5 54b1e9c433SDmitry Makogon %tmp9 = icmp ult i32 %tmp5, 0 55b1e9c433SDmitry Makogon br i1 %tmp9, label %outer_latch, label %ret1 56b1e9c433SDmitry Makogon 57b1e9c433SDmitry Makogonret1: ; preds = %inner_exit 58b1e9c433SDmitry Makogon ret void 59b1e9c433SDmitry Makogon 60b1e9c433SDmitry Makogoninner_header: ; preds = %inner_header, %outer_header 61b1e9c433SDmitry Makogon %tmp12 = phi i32 [ %tmp14, %inner_header ], [ 0, %outer_header ] 62b1e9c433SDmitry Makogon %tmp13 = or i32 %tmp12, 1 63b1e9c433SDmitry Makogon %tmp14 = add nuw nsw i32 %tmp12, 1 64b1e9c433SDmitry Makogon br i1 true, label %inner_exit, label %inner_header 65b1e9c433SDmitry Makogon 66b1e9c433SDmitry Makogonret2: ; preds = %outer_latch 67b1e9c433SDmitry Makogon ret void 68b1e9c433SDmitry Makogon} 69