bolt/test/RISCV/reloc-bb-split.s

   1 // RUN: %clang %cflags -o %t %s
   2 // RUN: llvm-bolt --print-cfg --print-only=_start -o /dev/null %t \
   3 // RUN:    | FileCheck %s
   4
   5   .data
   6   .globl d
   7   .p2align 3
   8 d:
   9   .dword 0
  10
  11   .text
  12   .globl _start
  13   .p2align 1
  14 // CHECK-LABEL: Binary Function "_start" after building cfg {
  15 _start:
  16 /// The local label is used for %pcrel_lo as well as a jump target so a new
  17 /// basic block should start there.
  18 // CHECK-LABEL: {{^}}.LBB00
  19 // CHECK: nop
  20 // CHECK-LABEL: {{^}}.Ltmp0
  21 // CHECK: auipc t0, %pcrel_hi(d) # Label: .Ltmp1
  22 // CHECK-NEXT: ld t0, %pcrel_lo(.Ltmp1)(t0)
  23 // CHECK-NEXT: j .Ltmp0
  24   nop
  25 1:
  26   auipc t0, %pcrel_hi(d)
  27   ld t0, %pcrel_lo(1b)(t0)
  28   j 1b
  29
  30 /// The local label is used only for %pcrel_lo so no new basic block should
  31 /// start there.
  32 // CHECK-LABEL: {{^}}.LFT0
  33 // CHECK: nop
  34 // CHECK-NEXT: auipc t0, %pcrel_hi(d) # Label: .Ltmp2
  35 // CHECK-NEXT: ld t0, %pcrel_lo(.Ltmp2)(t0)
  36 // CHECK-NEXT: ret
  37   nop
  38 1:
  39   auipc t0, %pcrel_hi(d)
  40   ld t0, %pcrel_lo(1b)(t0)
  41   ret
  42   .size _start, .-_start