1; Check that basic block section is emitted when a non-entry block has no predecessors. 2; RUN: llc < %s -mtriple=x86_64 -O0 -basic-block-sections=all | FileCheck %s --check-prefix=CHECK-SECTIONS 3; RUN: llc < %s -mtriple=x86_64 -O0 | FileCheck %s --check-prefix=CHECK-NOSECTIONS 4define void @foo(i32* %bar) { 5 %v = load i32, i32* %bar 6 switch i32 %v, label %default [ 7 i32 0, label %target 8 ] 9target: 10 ret void 11;; This is the block which will not have any predecessors. If the block is not garbage collected, it must 12;; be placed in a basic block section with a corresponding symbol. 13default: 14 unreachable 15; CHECK-NOSECTIONS: # %bb.2: # %default 16; CHECK-SECTIONS: .section .text.foo,"ax",@progbits,unique,2 17; CHECK-SECTIONS-NEXT: foo.__part.2: # %default 18} 19