File: aarch64-thunk-reuse2.s

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (36 lines) | stat: -rw-r--r-- 1,296 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
# REQUIRES: aarch64
# RUN: llvm-mc -filetype=obj -triple=aarch64 %s -o %t.o
# RUN: ld.lld -pie -Ttext=0x10300 %t.o -o %t
# RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn --disassemble-symbols=dest,__AArch64ADRPThunk_,high %t | FileCheck %s

## We create initial ThunkSection before the gap. Because the ThunkSection
## selection code isn't so precise, we may create an unused thunk there (0x10704).
## In the next pass we will create a ThunkSection after the gap. There used to be
## a bug reusing the first ThunkSection (unreachable) due to the large r_addend.
# CHECK:       <dest>:
# CHECK-NEXT:     10700:       ret
# CHECK:       <__AArch64ADRPThunk_>:
# CHECK-NEXT:     10704:       b       0x10700 <dest>
# CHECK-EMPTY:
# CHECK:       <__AArch64ADRPThunk_>:
# CHECK-NEXT:   8010708:       adrp    x16, 0x10000
# CHECK-NEXT:                  add     x16, x16, #1792
# CHECk-NEXT:                  br      x16
# CHECK-LABEL: <high>:
# CHECK-NEXT:   8010714:       bl      0x8010708 <__AArch64ADRPThunk_>
# CHECK-NEXT:                  b       0x8010708 <__AArch64ADRPThunk_>

.section .text._start, "ax", %progbits
.globl _start
_start:
.space 0x400
dest:
  ret

.section .text.gap, "ax", %progbits
.space 0x8000000

.section .text.high, "ax", %progbits
high:
  bl dest
  b dest