llvm/test/CodeGen/X86/basic-block-sections-named-section.ll

   1 ; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=all | FileCheck %s
   2 ; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=all | FileCheck %s
   3 ; RUN: echo "!_Z3fooi" > %t.order.txt
   4 ; RUN: echo "!!2" >> %t.order.txt
   5 ; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=%t.order.txt | FileCheck %s --check-prefix=LIST
   6 ; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t.order.txt | FileCheck %s --check-prefix=LIST
   7
   8 ; CHECK: .section       foo_section,"ax",@progbits,unique,1
   9 ; CHECK-LABEL: _Z3fooi:
  10 ; CHECK: .section       foo_section,"ax",@progbits,unique,2
  11 ; CHECK-NEXT: _Z3fooi.__part.1:
  12 ; CHECK: .section       foo_section,"ax",@progbits,unique,3
  13 ; CHECK-NEXT: _Z3fooi.__part.2:
  14
  15 ; LIST: .section        foo_section,"ax",@progbits,unique,1
  16 ; LIST-LABEL: _Z3fooi:
  17 ; LIST: .section        foo_section,"ax",@progbits,unique,2
  18 ; LIST-NEXT: _Z3fooi.__part.0:
  19 ; LIST-NOT: .section    foo_section,"ax",@progbits,unique,3
  20
  21 ;; Source to generate the IR:
  22 ;; __attribute__((section("foo_section")))
  23 ;; int foo(int n) {
  24 ;;   if (n < 0)
  25 ;;     exit(-1);
  26 ;;   return 0;
  27 ;; }
  28
  29 define dso_local i32 @_Z3fooi(i32 %n) local_unnamed_addr section "foo_section" {
  30 entry:
  31   %cmp = icmp slt i32 %n, 0
  32   br i1 %cmp, label %if.then, label %if.end
  33
  34 if.then:                                          ; preds = %entry
  35   tail call void @exit(i32 -1) #2
  36   unreachable
  37
  38 if.end:                                           ; preds = %entry
  39   ret i32 0
  40 }
  41
  42 declare dso_local void @exit(i32) local_unnamed_addr