llvm-project/bolt/test/AArch64/tailcall_traps.s

38 lines
817 B
ArmAsm

## Tests the peephole that adds trap instructions following indirect tail calls.
# RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown \
# RUN: %s -o %t.o
# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
# RUN: llvm-bolt %t.exe -o %t.bolt --peepholes=tailcall-traps \
# RUN: --print-peepholes --funcs=foo,bar 2>&1 | FileCheck %s
# CHECK: Binary Function "foo"
# CHECK: br x0 # TAILCALL
# CHECK-NEXT: brk #0x1
# CHECK: End of Function "foo"
# CHECK: Binary Function "bar"
# CHECK: b foo # TAILCALL
# CHECK: End of Function "bar"
.text
.align 4
.global _start
.type _start, %function
_start:
nop
ret
.size _start, .-_start
.global foo
.type foo, %function
foo:
br x0
.size foo, .-foo
.global bar
.type bar, %function
bar:
b foo
.size bar, .-bar