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llvm-project/bolt/test/AArch64/unmarked-data.test

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[BOLT] [AArch64] Handle constant islands spanning multiple functions Fix BOLT's constant island mapping when a constant island marked by $d spans multiple functions. Currently, because BOLT only marks the constant island in the first function where $d is located, if the next function contains data at its start, BOLT will miss the data and try to disassemble it. This patch adds code to explicitly go through all symbols between $d and $x markers and mark their respective offsets as data, which stops BOLT from trying to disassemble data. It also adds MarkerType enum and refactors related functions. Reviewed By: yota9, rafauler Differential Revision: https://reviews.llvm.org/D126177
2022-06-01 02:50:59 +08:00
// This test checks that multiple data objects in text of which only first is marked get disassembled properly
// RUN: yaml2obj %S/Inputs/unmarked-data.yaml -o %t.exe
[BOLT][TEST] Use double dash flags in tests Replace a single dash with a double dash for options that have more than a single letter. llvm-bolt-wrapper.py has special treatment for output options such as "-o" and "-w" causing issues when a single dash is used, e.g. for "-write-dwp". The wrapper can be fixed as well, but using a double dash has other advantages as well. Reviewed By: rafauler Differential Revision: https://reviews.llvm.org/D127538
2022-06-11 05:10:58 +08:00
// RUN: llvm-bolt %t.exe -o %t.bolt --lite=0 --use-old-text=0 2>&1 | FileCheck %s
[BOLT] [AArch64] Handle constant islands spanning multiple functions Fix BOLT's constant island mapping when a constant island marked by $d spans multiple functions. Currently, because BOLT only marks the constant island in the first function where $d is located, if the next function contains data at its start, BOLT will miss the data and try to disassemble it. This patch adds code to explicitly go through all symbols between $d and $x markers and mark their respective offsets as data, which stops BOLT from trying to disassemble data. It also adds MarkerType enum and refactors related functions. Reviewed By: yota9, rafauler Differential Revision: https://reviews.llvm.org/D126177
2022-06-01 02:50:59 +08:00
// CHECK-NOT: BOLT-WARNING
// RUN: llvm-objdump -j .text -d --disassemble-symbols=first,second %t.bolt | FileCheck %s -check-prefix=CHECK-SYMBOL
// CHECK-SYMBOL: <first>:
// CHECK-SYMBOL: <second>:
// YAML is based in the following assembly:
.equ val, 0x070b0f03 // we use constant that is not a valid instruction so that it can't be silently dissassembled
.text
first:
.xword val
.size first, .-first
second:
.xword val
.size second, .-second
.globl dummy
.type dummy, %function
dummy: // dummy function to force relocations
ret
.globl _start
.type _start, %function
_start:
bl dummy
mov x0, #0
mov w8, #93
svc #0