1*e7f4ad13SNikita Popov; RUN: opt -passes=loop-versioning -S < %s | FileCheck %s 2cee313d2SEric Christophertarget triple = "x86_64-unknown-linux-gnu" 3cee313d2SEric Christopher 4*e7f4ad13SNikita Popovdefine void @fill(ptr %ls1.20, ptr %ls2.21, ptr %cse3.22) { 54a42ce25SFlorian Hahn; CHECK-LABEL: @fill( 64a42ce25SFlorian Hahn; CHECK-NEXT: bb1.lver.check: 7*e7f4ad13SNikita Popov; CHECK-NEXT: [[LS1_20_PROMOTED:%.*]] = load ptr, ptr [[LS1_20:%.*]], align 8 8*e7f4ad13SNikita Popov; CHECK-NEXT: [[LS2_21_PROMOTED:%.*]] = load ptr, ptr [[LS2_21:%.*]], align 8 9*e7f4ad13SNikita Popov; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[LS1_20_PROMOTED]], i64 -1 10*e7f4ad13SNikita Popov; CHECK-NEXT: [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[LS1_20_PROMOTED]], i64 1 11*e7f4ad13SNikita Popov; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[LS2_21_PROMOTED]], i64 1 12*e7f4ad13SNikita Popov; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[SCEVGEP]], [[SCEVGEP2]] 13*e7f4ad13SNikita Popov; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[LS2_21_PROMOTED]], [[SCEVGEP1]] 144a42ce25SFlorian Hahn; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 154a42ce25SFlorian Hahn; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label %bb1.ph.lver.orig, label %bb1.ph 164a42ce25SFlorian Hahn; CHECK: bb1.ph.lver.orig: 174a42ce25SFlorian Hahn; 18cee313d2SEric Christopherbb1.ph: 19*e7f4ad13SNikita Popov %ls1.20.promoted = load ptr, ptr %ls1.20 20*e7f4ad13SNikita Popov %ls2.21.promoted = load ptr, ptr %ls2.21 21cee313d2SEric Christopher br label %bb1 22cee313d2SEric Christopher 23cee313d2SEric Christopherbb1: 24*e7f4ad13SNikita Popov %_tmp302 = phi ptr [ %ls2.21.promoted, %bb1.ph ], [ %_tmp30, %bb1 ] 25*e7f4ad13SNikita Popov %_tmp281 = phi ptr [ %ls1.20.promoted, %bb1.ph ], [ %_tmp28, %bb1 ] 26*e7f4ad13SNikita Popov %_tmp14 = getelementptr i8, ptr %_tmp281, i16 -1 27*e7f4ad13SNikita Popov %_tmp15 = load i8, ptr %_tmp14 28cee313d2SEric Christopher %add = add i8 %_tmp15, 1 29*e7f4ad13SNikita Popov store i8 %add, ptr %_tmp281 30*e7f4ad13SNikita Popov store i8 %add, ptr %_tmp302 31*e7f4ad13SNikita Popov %_tmp28 = getelementptr i8, ptr %_tmp281, i16 1 32*e7f4ad13SNikita Popov %_tmp30 = getelementptr i8, ptr %_tmp302, i16 1 33cee313d2SEric Christopher br i1 false, label %bb1, label %bb3.loopexit 34cee313d2SEric Christopher 35cee313d2SEric Christopherbb3.loopexit: 36*e7f4ad13SNikita Popov %_tmp30.lcssa = phi ptr [ %_tmp30, %bb1 ] 37cee313d2SEric Christopher %_tmp15.lcssa = phi i8 [ %_tmp15, %bb1 ] 38*e7f4ad13SNikita Popov %_tmp28.lcssa = phi ptr [ %_tmp28, %bb1 ] 39*e7f4ad13SNikita Popov store ptr %_tmp28.lcssa, ptr %ls1.20 40*e7f4ad13SNikita Popov store i8 %_tmp15.lcssa, ptr %cse3.22 41*e7f4ad13SNikita Popov store ptr %_tmp30.lcssa, ptr %ls2.21 42cee313d2SEric Christopher br label %bb3 43cee313d2SEric Christopher 44cee313d2SEric Christopherbb3: 45cee313d2SEric Christopher ret void 46cee313d2SEric Christopher} 47cee313d2SEric Christopher 48*e7f4ad13SNikita Popovdefine void @fill_no_null_opt(ptr %ls1.20, ptr %ls2.21, ptr %cse3.22) #0 { 494a42ce25SFlorian Hahn; CHECK-LABEL: @fill_no_null_opt( 504a42ce25SFlorian Hahn; CHECK-NEXT: bb1.lver.check: 51*e7f4ad13SNikita Popov; CHECK-NEXT: [[LS1_20_PROMOTED:%.*]] = load ptr, ptr [[LS1_20:%.*]], align 8 52*e7f4ad13SNikita Popov; CHECK-NEXT: [[LS2_21_PROMOTED:%.*]] = load ptr, ptr [[LS2_21:%.*]], align 8 53*e7f4ad13SNikita Popov; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[LS1_20_PROMOTED]], i64 -1 54*e7f4ad13SNikita Popov; CHECK-NEXT: [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[LS1_20_PROMOTED]], i64 1 55*e7f4ad13SNikita Popov; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[LS2_21_PROMOTED]], i64 1 56*e7f4ad13SNikita Popov; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[SCEVGEP]], [[SCEVGEP2]] 57*e7f4ad13SNikita Popov; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[LS2_21_PROMOTED]], [[SCEVGEP1]] 584a42ce25SFlorian Hahn; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 59138fcc5fSFlorian Hahn; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label %bb1.ph.lver.orig, label %bb1.ph 604a42ce25SFlorian Hahn; CHECK: bb1.ph.lver.orig: 614a42ce25SFlorian Hahn; 62cee313d2SEric Christopherbb1.ph: 63*e7f4ad13SNikita Popov %ls1.20.promoted = load ptr, ptr %ls1.20 64*e7f4ad13SNikita Popov %ls2.21.promoted = load ptr, ptr %ls2.21 65cee313d2SEric Christopher br label %bb1 66cee313d2SEric Christopher 67cee313d2SEric Christopherbb1: 68*e7f4ad13SNikita Popov %_tmp302 = phi ptr [ %ls2.21.promoted, %bb1.ph ], [ %_tmp30, %bb1 ] 69*e7f4ad13SNikita Popov %_tmp281 = phi ptr [ %ls1.20.promoted, %bb1.ph ], [ %_tmp28, %bb1 ] 70*e7f4ad13SNikita Popov %_tmp14 = getelementptr i8, ptr %_tmp281, i16 -1 71*e7f4ad13SNikita Popov %_tmp15 = load i8, ptr %_tmp14 72cee313d2SEric Christopher %add = add i8 %_tmp15, 1 73*e7f4ad13SNikita Popov store i8 %add, ptr %_tmp281 74*e7f4ad13SNikita Popov store i8 %add, ptr %_tmp302 75*e7f4ad13SNikita Popov %_tmp28 = getelementptr i8, ptr %_tmp281, i16 1 76*e7f4ad13SNikita Popov %_tmp30 = getelementptr i8, ptr %_tmp302, i16 1 77cee313d2SEric Christopher br i1 false, label %bb1, label %bb3.loopexit 78cee313d2SEric Christopher 79cee313d2SEric Christopherbb3.loopexit: 80*e7f4ad13SNikita Popov %_tmp30.lcssa = phi ptr [ %_tmp30, %bb1 ] 81cee313d2SEric Christopher %_tmp15.lcssa = phi i8 [ %_tmp15, %bb1 ] 82*e7f4ad13SNikita Popov %_tmp28.lcssa = phi ptr [ %_tmp28, %bb1 ] 83*e7f4ad13SNikita Popov store ptr %_tmp28.lcssa, ptr %ls1.20 84*e7f4ad13SNikita Popov store i8 %_tmp15.lcssa, ptr %cse3.22 85*e7f4ad13SNikita Popov store ptr %_tmp30.lcssa, ptr %ls2.21 86cee313d2SEric Christopher br label %bb3 87cee313d2SEric Christopher 88cee313d2SEric Christopherbb3: 89cee313d2SEric Christopher ret void 90cee313d2SEric Christopher} 91cee313d2SEric Christopher 92f89f7da9SNikita Popovattributes #0 = { null_pointer_is_valid } 93