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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes=jump-threading -S | FileCheck %s3 4define i1 @func(i1 %arg, i32 %arg1, i1 %arg2) {5; CHECK-LABEL: @func(6; CHECK-NEXT: bb:7; CHECK-NEXT: br i1 [[ARG:%.*]], label [[BB7:%.*]], label [[BB4:%.*]]8; CHECK: bb4:9; CHECK-NEXT: callbr void asm sideeffect "", "!i"()10; CHECK-NEXT: to label [[BB7_THR_COMM:%.*]] [label %bb7.thr_comm]11; CHECK: bb7.thr_comm:12; CHECK-NEXT: [[I91:%.*]] = xor i1 [[ARG2:%.*]], [[ARG]]13; CHECK-NEXT: br i1 [[I91]], label [[BB11:%.*]], label [[BB11]]14; CHECK: bb7:15; CHECK-NEXT: [[I:%.*]] = icmp eq i32 [[ARG1:%.*]], 016; CHECK-NEXT: [[I9:%.*]] = xor i1 [[I]], [[ARG]]17; CHECK-NEXT: br i1 [[I9]], label [[BB11]], label [[BB11]]18; CHECK: bb11:19; CHECK-NEXT: [[I93:%.*]] = phi i1 [ [[I91]], [[BB7_THR_COMM]] ], [ [[I9]], [[BB7]] ], [ [[I91]], [[BB7_THR_COMM]] ], [ [[I9]], [[BB7]] ]20; CHECK-NEXT: ret i1 [[I93]]21;22bb:23 br i1 %arg, label %bb3, label %bb424 25bb3:26 %i = icmp eq i32 %arg1, 027 br label %bb728 29bb4:30 callbr void asm sideeffect "", "!i"()31 to label %bb5 [label %bb6]32 33bb5:34 br label %bb635 36bb6:37 br label %bb738 39bb7:40 %i8 = phi i1 [ %i, %bb3 ], [ %arg2, %bb6 ]41 %i9 = xor i1 %i8, %arg42 br i1 %i9, label %bb11, label %bb1043 44bb10:45 br label %bb1146 47bb11:48 ret i1 %i949}50 51define i32 @callbr_no_block_merge() {52; CHECK-LABEL: @callbr_no_block_merge(53; CHECK-NEXT: [[X:%.*]] = callbr i32 asm sideeffect "", "=r"()54; CHECK-NEXT: to label [[BB:%.*]] []55; CHECK: bb:56; CHECK-NEXT: ret i32 [[X]]57;58 %x = callbr i32 asm sideeffect "", "=r"()59 to label %bb []60 61bb:62 ret i32 %x63}64