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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=loop-unroll -S %s | FileCheck %s3 4; Check that the loop body containing callbr is correctly unrolled.5define dso_local void @d() {6; CHECK-LABEL: @d(7; CHECK-NEXT: entry:8; CHECK-NEXT: br label [[FOR_BODY:%.*]]9; CHECK: for.body:10; CHECK-NEXT: br i1 true, label [[FOR_INC:%.*]], label [[IF_THEN:%.*]]11; CHECK: if.then:12; CHECK-NEXT: callbr void asm sideeffect "1: nop\0A\09.quad b, ${0:l}, $$5\0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()13; CHECK-NEXT: to label [[ASM_FALLTHROUGH:%.*]] [label %l_yes]14; CHECK: asm.fallthrough:15; CHECK-NEXT: br label [[L_YES:%.*]]16; CHECK: l_yes:17; CHECK-NEXT: [[CALL:%.*]] = tail call i32 (...) @g()18; CHECK-NEXT: br label [[FOR_INC]]19; CHECK: for.inc:20; CHECK-NEXT: br i1 false, label [[FOR_INC_1:%.*]], label [[IF_THEN_1:%.*]]21; CHECK: if.then.1:22; CHECK-NEXT: callbr void asm sideeffect "1: nop\0A\09.quad b, ${0:l}, $$5\0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()23; CHECK-NEXT: to label [[ASM_FALLTHROUGH_1:%.*]] [label %l_yes.1]24; CHECK: asm.fallthrough.1:25; CHECK-NEXT: br label [[L_YES_1:%.*]]26; CHECK: l_yes.1:27; CHECK-NEXT: [[CALL_1:%.*]] = tail call i32 (...) @g()28; CHECK-NEXT: br label [[FOR_INC_1]]29; CHECK: for.inc.1:30; CHECK-NEXT: br i1 false, label [[FOR_INC_2:%.*]], label [[IF_THEN_2:%.*]]31; CHECK: if.then.2:32; CHECK-NEXT: callbr void asm sideeffect "1: nop\0A\09.quad b, ${0:l}, $$5\0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()33; CHECK-NEXT: to label [[ASM_FALLTHROUGH_2:%.*]] [label %l_yes.2]34; CHECK: asm.fallthrough.2:35; CHECK-NEXT: br label [[L_YES_2:%.*]]36; CHECK: l_yes.2:37; CHECK-NEXT: [[CALL_2:%.*]] = tail call i32 (...) @g()38; CHECK-NEXT: br label [[FOR_INC_2]]39; CHECK: for.inc.2:40; CHECK-NEXT: ret void41;42entry:43 br label %for.body44 45for.cond.cleanup: ; preds = %for.inc46 ret void47 48for.body: ; preds = %for.inc, %entry49 %e.04 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]50 %tobool = icmp eq i32 %e.04, 051 br i1 %tobool, label %for.inc, label %if.then52 53if.then: ; preds = %for.body54 callbr void asm sideeffect "1: nop\0A\09.quad b, ${0:l}, $$5\0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()55 to label %asm.fallthrough [label %l_yes]56 57asm.fallthrough: ; preds = %if.then58 br label %l_yes59 60l_yes: ; preds = %asm.fallthrough, %if.then61 %call = tail call i32 (...) @g()62 br label %for.inc63 64for.inc: ; preds = %for.body, %l_yes65 %inc = add nuw nsw i32 %e.04, 166 %exitcond = icmp eq i32 %inc, 367 br i1 %exitcond, label %for.cond.cleanup, label %for.body68}69 70declare dso_local i32 @g(...) local_unnamed_addr71