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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes=ipsccp -S | FileCheck %s3 4; Test for PR397725 6%struct.Node = type { ptr, ptr, i32 }7 8define i32 @check(ptr %node) {9; CHECK-LABEL: @check(10; CHECK-NEXT: entry:11; CHECK-NEXT: [[CMP:%.*]] = icmp eq ptr [[NODE:%.*]], null12; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]13; CHECK: if.then:14; CHECK-NEXT: br label [[CLEANUP:%.*]]15; CHECK: if.end:16; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr [[NODE]], align 817; CHECK-NEXT: [[CALL:%.*]] = call i32 @check(ptr [[TMP0]])18; CHECK-NEXT: [[RIGHT:%.*]] = getelementptr inbounds nuw [[STRUCT_NODE:%.*]], ptr [[NODE]], i32 0, i32 119; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr [[RIGHT]], align 820; CHECK-NEXT: [[CALL1:%.*]] = call i32 @check(ptr [[TMP1]])21; CHECK-NEXT: [[TMP2:%.*]] = load ptr, ptr [[RIGHT]], align 822; CHECK-NEXT: [[HEIGHT:%.*]] = getelementptr inbounds nuw [[STRUCT_NODE]], ptr [[TMP2]], i32 0, i32 223; CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[HEIGHT]], align 424; CHECK-NEXT: [[CMP3:%.*]] = icmp ne i32 [[TMP3]], [[CALL1]]25; CHECK-NEXT: br i1 [[CMP3]], label [[IF_THEN4:%.*]], label [[IF_END5:%.*]]26; CHECK: if.then4:27; CHECK-NEXT: unreachable28; CHECK: if.end5:29; CHECK-NEXT: [[CMP6:%.*]] = icmp sgt i32 [[CALL]], [[CALL1]]30; CHECK-NEXT: br i1 [[CMP6]], label [[IF_THEN7:%.*]], label [[IF_ELSE:%.*]]31; CHECK: if.then7:32; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[CALL]], 133; CHECK-NEXT: br label [[CLEANUP]]34; CHECK: if.else:35; CHECK-NEXT: [[ADD8:%.*]] = add nsw i32 [[CALL1]], 136; CHECK-NEXT: br label [[CLEANUP]]37; CHECK: cleanup:38; CHECK-NEXT: [[RETVAL_0:%.*]] = phi i32 [ 0, [[IF_THEN]] ], [ [[ADD]], [[IF_THEN7]] ], [ [[ADD8]], [[IF_ELSE]] ]39; CHECK-NEXT: ret i32 [[RETVAL_0]]40;41entry:42 %cmp = icmp eq ptr %node, null43 br i1 %cmp, label %if.then, label %if.end44 45if.then: ; preds = %entry46 br label %cleanup47 48if.end: ; preds = %entry49 %0 = load ptr, ptr %node50 %call = call i32 @check(ptr %0)51 %right = getelementptr inbounds %struct.Node, ptr %node, i32 0, i32 152 %1 = load ptr, ptr %right53 %call1 = call i32 @check(ptr %1)54 %2 = load ptr, ptr %right55 %height = getelementptr inbounds %struct.Node, ptr %2, i32 0, i32 256 %3 = load i32, ptr %height57 %cmp3 = icmp ne i32 %3, %call158 br i1 %cmp3, label %if.then4, label %if.end559 60if.then4: ; preds = %if.end61 unreachable62 63if.end5: ; preds = %if.end64 %cmp6 = icmp sgt i32 %call, %call165 br i1 %cmp6, label %if.then7, label %if.else66 67if.then7: ; preds = %if.end568 %add = add nsw i32 %call, 169 br label %cleanup70 71if.else: ; preds = %if.end572 %add8 = add nsw i32 %call1, 173 br label %cleanup74 75cleanup: ; preds = %if.else, %if.then7, %if.then76 %retval.0 = phi i32 [ 0, %if.then ], [ %add, %if.then7 ], [ %add8, %if.else ]77 ret i32 %retval.078}79 80declare ptr @test2_callee(i32, i32)81 82define void @test2() {83; CHECK-LABEL: @test2(84; CHECK-NEXT: entry:85; CHECK-NEXT: br label [[FOR_COND:%.*]]86; CHECK: for.cond:87; CHECK-NEXT: br label [[FOR_BODY:%.*]]88; CHECK: for.body:89; CHECK-NEXT: br label [[IF_ELSE33:%.*]]90; CHECK: if.else33:91; CHECK-NEXT: br label [[IF_THEN38:%.*]]92; CHECK: if.then38:93; CHECK-NEXT: [[CALL42:%.*]] = call ptr @test2_callee(i32 0, i32 0)94; CHECK-NEXT: unreachable95;96entry:97 br label %for.cond98 99for.cond: ; preds = %for.inc46, %entry100 %op.0 = phi i32 [ 0, %entry ], [ 0, %for.inc46 ]101 br label %for.body102 103for.body: ; preds = %for.cond104 %cmp24 = icmp eq i32 %op.0, 38105 br i1 %cmp24, label %if.then26, label %if.else33106 107if.then26: ; preds = %for.body108 unreachable109 110if.else33: ; preds = %for.body111 %cmp34 = icmp ne i32 %op.0, 80112 %cmp36 = icmp ne i32 %op.0, 81113 %or.cond = and i1 %cmp34, %cmp36114 br i1 %or.cond, label %if.then38, label %for.inc46115 116if.then38: ; preds = %if.else33117 %call42 = call ptr @test2_callee(i32 %op.0, i32 0)118 unreachable119 120for.inc46: ; preds = %if.else33121 br label %for.cond122}123