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