llvm/test/MC/RISCV/tail-call.s

   1 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
   2 # RUN:   | llvm-objdump -d - | FileCheck --check-prefix=INSTR %s
   3 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
   4 # RUN:   | llvm-readobj -r - | FileCheck -check-prefix=RELOC %s
   5 # RUN: llvm-mc -triple riscv32 < %s -show-encoding \
   6 # RUN:   | FileCheck -check-prefix=FIXUP %s
   7
   8 # RUN: llvm-mc -filetype=obj -triple riscv64 < %s \
   9 # RUN:   | llvm-objdump -d - | FileCheck --check-prefix=INSTR %s
  10 # RUN: llvm-mc -filetype=obj -triple riscv64 < %s \
  11 # RUN:   | llvm-readobj -r - | FileCheck -check-prefix=RELOC %s
  12 # RUN: llvm-mc -triple riscv64 < %s -show-encoding \
  13 # RUN:   | FileCheck -check-prefix=FIXUP %s
  14
  15 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+experimental-zicfilp < %s \
  16 # RUN:   | llvm-objdump -d - | FileCheck --check-prefix=INSTR-ZICFILP %s
  17 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+experimental-zicfilp < %s \
  18 # RUN:   | llvm-readobj -r - | FileCheck -check-prefix=RELOC %s
  19 # RUN: llvm-mc -triple riscv32 -mattr=+experimental-zicfilp < %s -show-encoding \
  20 # RUN:   | FileCheck -check-prefix=FIXUP %s
  21
  22 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+experimental-zicfilp < %s \
  23 # RUN:   | llvm-objdump -d - | FileCheck --check-prefix=INSTR-ZICFILP %s
  24 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+experimental-zicfilp < %s \
  25 # RUN:   | llvm-readobj -r - | FileCheck -check-prefix=RELOC %s
  26 # RUN: llvm-mc -triple riscv64 -mattr=+experimental-zicfilp < %s -show-encoding \
  27 # RUN:   | FileCheck -check-prefix=FIXUP %s
  28
  29 .long foo
  30
  31 tail foo
  32 # RELOC: R_RISCV_CALL_PLT foo 0x0
  33 # INSTR: auipc t1, 0
  34 # INSTR: jr  t1
  35 # INSTR-ZICFILP: auipc t2, 0
  36 # INSTR-ZICFILP: jr  t2
  37 # FIXUP: fixup A - offset: 0, value: foo, kind:
  38
  39 tail bar
  40 # RELOC: R_RISCV_CALL_PLT bar 0x0
  41 # INSTR: auipc t1, 0
  42 # INSTR: jr  t1
  43 # INSTR-ZICFILP: auipc t2, 0
  44 # INSTR-ZICFILP: jr  t2
  45 # FIXUP: fixup A - offset: 0, value: bar, kind:
  46
  47 # Ensure that tail calls to functions whose names coincide with register names
  48 # work.
  49
  50 tail zero
  51 # RELOC: R_RISCV_CALL_PLT zero 0x0
  52 # INSTR: auipc t1, 0
  53 # INSTR: jr  t1
  54 # INSTR-ZICFILP: auipc t2, 0
  55 # INSTR-ZICFILP: jr  t2
  56 # FIXUP: fixup A - offset: 0, value: zero, kind:
  57
  58 tail f1
  59 # RELOC: R_RISCV_CALL_PLT f1 0x0
  60 # INSTR: auipc t1, 0
  61 # INSTR: jr  t1
  62 # INSTR-ZICFILP: auipc t2, 0
  63 # INSTR-ZICFILP: jr  t2
  64 # FIXUP: fixup A - offset: 0, value: f1, kind:
  65
  66 tail ra
  67 # RELOC: R_RISCV_CALL_PLT ra 0x0
  68 # INSTR: auipc t1, 0
  69 # INSTR: jr  t1
  70 # INSTR-ZICFILP: auipc t2, 0
  71 # INSTR-ZICFILP: jr  t2
  72 # FIXUP: fixup A - offset: 0, value: ra, kind:
  73
  74 tail foo@plt
  75 # RELOC: R_RISCV_CALL_PLT foo 0x0
  76 # INSTR: auipc t1, 0
  77 # INSTR: jr  t1
  78 # INSTR-ZICFILP: auipc t2, 0
  79 # INSTR-ZICFILP: jr  t2
  80 # FIXUP: fixup A - offset: 0, value: foo, kind: fixup_riscv_call_plt