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# REQUIRES: arm
# RUN: rm -rf %t && split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=armv7-a-none-eabi --arm-add-build-attributes %t/a.s -o %t/a.o
# RUN: ld.lld -pie -T %t/lds %t/a.o -o %t/a
# RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t/a | FileCheck %s
## We create a thunk for dest.
# CHECK-LABEL: <mid>:
# CHECK-NEXT: 2010004: b 0x2010008 <__ARMV7PILongThunk_dest>
# CHECK-EMPTY:
# CHECK-NEXT: <__ARMV7PILongThunk_dest>:
# CHECK-NEXT: 2010008: movw r12, #65516
# CHECK-NEXT: movt r12, #65023
# CHECK-NEXT: add r12, r12, pc
# CHECK-NEXT: bx r12
## The first instruction can reuse the thunk but the second can't.
## If we reuse the thunk for b, we will get an "out of range" error.
# CHECK-LABEL: <high>:
# CHECK-NEXT: 4010000: bl 0x2010008 <__ARMV7PILongThunk_dest>
# CHECK-NEXT: b 0x4010008 <__ARMV7PILongThunk_dest>
# CHECK-EMPTY:
# CHECK-NEXT: <__ARMV7PILongThunk_dest>:
# CHECK-NEXT: 4010008: movw r12, #65516
# CHECK-NEXT: movt r12, #64511
# CHECK-NEXT: add r12, r12, pc
# CHECK-NEXT: bx r12
#--- a.s
.section .text_low, "ax", %progbits
.globl _start
_start:
nop
dest:
bx lr
.section .text_mid, "ax", %progbits
mid:
b dest
.section .text_high, "ax", %progbits
high:
bl dest
b dest
#--- lds
SECTIONS {
.text_low 0x10000: { *(.text_low) }
.text_mid 0x2010004 : { *(.text_mid) }
.text_high 0x4010000 : { *(.text_high) }
}
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