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TheRock/compiler/amd-llvm/bolt/test/AArch64/long-jmp-hugify-fixup-out-of-range.s
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53 lines
1.5 KiB
ArmAsm

# The longjump pass may consider branch targets in range during tentative
# layout and decide not to insert stubs for them. Later, final section
# allocation may insert alignment padding after the last non-cold text section
# when hugify is enabled. This moves the following cold section farther away,
# resulting in relocation fixups going out of range at JITLink. Check that the
# longjump pass accounts for this padding and inserts stubs when needed.
# REQUIRES: system-linux, asserts, bolt-runtime, target=aarch64{{.*}}
# RUN: %clang %cflags -Wl,-q %s -o %t
# RUN: link_fdata --no-lbr %s %t %t.fdata
# RUN: llvm-strip --strip-unneeded %t
# RUN: llvm-bolt %t -o %t.bolt --data %t.fdata -split-functions --hugify
# RUN: llvm-objdump -d %t.bolt | FileCheck %s
.globl foo
.type foo, %function
foo:
.entry_foo:
# FDATA: 1 foo #.entry_foo# 10
cbz x0, .Lcold_foo
mov x0, #1
.Lcold_foo:
ret
.globl main
.type main, %function
main:
mov w0, wzr
ret
.globl _start
.type _start, %function
_start:
bl main
b .
## Force relocation mode.
.reloc 0, R_AARCH64_NONE
# CHECK: Disassembly of section .text:
# CHECK: <foo>:
# CHECK-NEXT: {{.*}} cbnz x0, 0x[[ADDR0:[0-9a-f]+]] <{{.*}}>
# CHECK-NEXT: {{.*}} b 0x[[ADDR1:[0-9a-f]+]] <{{.*}}>
# CHECK-NEXT: [[ADDR0]]: {{.*}} b 0x[[ADDR2:[0-9a-f]+]] <{{.*}}>
# CHECK: Disassembly of section .text.cold:
# CHECK: <foo.cold.0>:
# CHECK-NEXT: [[ADDR2]]: {{.*}} mov x0, #0x1 // =1
# CHECK-NEXT: [[ADDR1]]: {{.*}} ret