llvm-project/bolt/test/X86/unclaimed-jt-entries.s
Connie 887f7002b6
[NFC][bolt][test] Change '|&' to '2>&1 |' for lit internal shell support (#102402)
This patches changes all references to '|&' in bolt tests to instead use
the '2>&1 |' syntax for better consistency across testing and so that
lit's internal shell can be used to run these tests. This addresses a
suggestion made in the comments of this RFC:
https://discourse.llvm.org/t/rfc-enabling-the-lit-internal-shell-by-default/80179.

Fixes https://github.com/llvm/llvm-project/issues/102388
2024-08-12 17:18:17 -07:00

67 lines
1.7 KiB
ArmAsm

## This test ensures that "unclaimed" jump table entries are accounted later
## in postProcessIndirectBranches and the function is marked as non-simple.
# The test is compiled from the following source using GCC 12.2 -O3:
# https://godbolt.org/z/YcPG131s6
# int func(long long Input) {
# switch(Input) {
# case 3: return 1;
# case 4: return 2;
# case 6: return 3;
# case 8: return 4;
# case 13: return 5;
# default: __builtin_unreachable();
# }
# }
# REQUIRES: system-linux
# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o
# RUN: %clang %cflags -no-pie %t.o -o %t.exe -Wl,-q
# RUN: llvm-bolt %t.exe -v=1 -o %t.out 2>&1 | FileCheck %s
# CHECK: BOLT-WARNING: unclaimed data to code reference (possibly an unrecognized jump table entry) to .Ltmp[[#]] in main
# CHECK: BOLT-WARNING: unclaimed data to code reference (possibly an unrecognized jump table entry) to .Ltmp[[#]] in main
# CHECK: BOLT-WARNING: unclaimed data to code reference (possibly an unrecognized jump table entry) to .Ltmp[[#]] in main
# CHECK: BOLT-WARNING: unclaimed data to code reference (possibly an unrecognized jump table entry) to .Ltmp[[#]] in main
# CHECK: BOLT-WARNING: unclaimed data to code reference (possibly an unrecognized jump table entry) to .Ltmp[[#]] in main
# CHECK: BOLT-WARNING: failed to post-process indirect branches for main
.text
.globl main
.type main, %function
.size main, .Lend-main
main:
jmp *L4-24(,%rdi,8)
.L5:
movl $4, %eax
ret
.L9:
movl $2, %eax
ret
.L8:
movl $1, %eax
ret
.L3:
movl $5, %eax
ret
.L6:
movl $3, %eax
ret
.Lend:
.section .rodata
.globl L4
L4:
.quad .L8
.quad .L9
.quad .L3
.quad .L6
.quad .L3
.quad .L5
.quad .L3
.quad .L3
.quad .L3
.quad .L3
.quad .L3