[ELF][Hexagon][test] Use llvm-readobj to check relocations. NFC

# REQUIRES: hexagon

# RUN: llvm-mc -filetype=obj -triple=hexagon-unknown-elf %s -o %t.o

# RUN: llvm-readobj -r %t.o | FileCheck --check-prefix=RELOC %s

# RUN: ld.lld %t.o -o %t

# RUN: llvm-objdump -d --print-imm-hex %t | FileCheck %s

_start:

r0 = ugp

# R_HEX_TPREL_32_6_X and R_HEX_TPREL_16_X

# RELOC:      0x4 R_HEX_TPREL_32_6_X a 0x0

# RELOC-NEXT: 0x8 R_HEX_TPREL_16_X a 0x0

# CHECK:      { immext(#0xffffffc0)

# CHECK-NEXT:   r1 = add(r0,##-0x10) }

                r1 = add(r0,##a@TPREL)

# R_HEX_TPREL_32_6_X and R_HEX_TPREL_11_X

# RELOC-NEXT: 0xC R_HEX_TPREL_32_6_X a 0x0

# RELOC-NEXT: 0x10 R_HEX_TPREL_11_X a 0x0

# CHECK:      { immext(#0xffffffc0)

# CHECK-NEXT:   r2 = memw(r0+##-0x10) }

                r2 = memw(r0+##a@TPREL)

# RELOC-NEXT: 0x14 R_HEX_TPREL_HI16 a 0x0

# R_HEX_TPREL_HI16

# CHECK: {      r3.h = #0xffff }

                r3.h = #a@TPREL

# RELOC-NEXT: 0x18 R_HEX_TPREL_LO16 a 0x0

# R_HEX_TPREL_LO16

# CHECK: {      r3.l = #0xfff0 }

                r3.l = #a@TPREL

# R_HEX_TPREL_16

# RELOC-NEXT: 0x1C R_HEX_TPREL_16 a 0x0

# CHECK: {      r4 = #-0x10 }

                r4 = #a@TPREL