llvm-mirror/test/MC/Mips/expansion-j-sym-pic.s
Simon Atanasyan 1d31d89061 [mips] For PIC code convert unconditional jump to unconditional branch
Unconditional branch uses relative addressing which is the right choice
in case of position independent code.

This is a fix for the bug:
https://dmz-portal.mips.com/bugz/show_bug.cgi?id=2445

Differential revision: https://reviews.llvm.org/D27483

llvm-svn: 289448
2016-12-12 17:40:26 +00:00

140 lines
4.7 KiB
ArmAsm

# RUN: llvm-mc %s -arch=mips -mcpu=mips32 -show-encoding |\
# RUN: FileCheck %s -check-prefix=NORMAL
# RUN: llvm-mc %s -arch=mips -mcpu=mips64 -target-abi n32 -show-encoding |\
# RUN: FileCheck %s -check-prefix=NORMAL
# RUN: llvm-mc %s -arch=mips64 -mcpu=mips64 -target-abi n64 -show-encoding |\
# RUN: FileCheck %s -check-prefix=NORMAL
# RUN: llvm-mc %s -arch=mips -mcpu=mips32 -mattr=micromips -show-encoding |\
# RUN: FileCheck %s -check-prefix=MICRO
# RUN: llvm-mc %s -arch=mips64 -mcpu=mips64 -target-abi n32 -mattr=micromips -show-encoding |\
# RUN: FileCheck %s -check-prefix=MICRO
# RUN: llvm-mc %s -arch=mips64 -mcpu=mips64 -target-abi n64 -mattr=micromips -show-encoding |\
# RUN: FileCheck %s -check-prefix=MICRO
# Repeat the tests using ELF output.
# RUN: llvm-mc %s -arch=mips -mcpu=mips32 -filetype=obj | \
# RUN: llvm-objdump -d -r - | FileCheck %s -check-prefixes=ELF-O32
# RUN: llvm-mc %s -arch=mips64 -mcpu=mips64 -target-abi n32 -filetype=obj | \
# RUN: llvm-objdump -d -r - | FileCheck %s -check-prefixes=ELF-NXX
# RUN: llvm-mc %s -arch=mips64 -mcpu=mips64 -target-abi n64 -filetype=obj | \
# RUN: llvm-objdump -d -r - | FileCheck %s -check-prefixes=ELF-NXX
.weak weak_label
.text
.option pic2
.ent local_label
local_label:
.frame $sp, 0, $ra
.set noreorder
j local_label
nop
# NORMAL: b local_label # encoding: [0x10,0x00,A,A]
# NORMAL: # fixup A - offset: 0, value: local_label-4, kind: fixup_Mips_PC16
# MICRO: b local_label # encoding: [0x94,0x00,A,A]
# MICRO: # fixup A - offset: 0, value: local_label, kind: fixup_MICROMIPS_PC16_S1
# ELF-O32: 10 00 ff ff b 0
# ELF-NXX: 10 00 ff ff b 0
j weak_label
nop
# NORMAL: b weak_label # encoding: [0x10,0x00,A,A]
# NORMAL: # fixup A - offset: 0, value: weak_label-4, kind: fixup_Mips_PC16
# MICRO: b weak_label # encoding: [0x94,0x00,A,A]
# MICRO: # fixup A - offset: 0, value: weak_label, kind: fixup_MICROMIPS_PC16_S1
# ELF-O32: 10 00 ff ff b 0
# ELF-O32-NEXT: R_MIPS_PC16 weak_label
# ELF-NXX: 10 00 00 00 b 4
# ELF-NXX-NEXT: R_MIPS_PC16/R_MIPS_NONE/R_MIPS_NONE weak_label
j global_label
nop
# NORMAL: b global_label # encoding: [0x10,0x00,A,A]
# NORMAL: # fixup A - offset: 0, value: global_label-4, kind: fixup_Mips_PC16
# MICRO: b global_label # encoding: [0x94,0x00,A,A]
# MICRO: # fixup A - offset: 0, value: global_label, kind: fixup_MICROMIPS_PC16_S1
# ELF-O32: 10 00 ff ff b 0
# ELF-O32-NEXT: 00000010: R_MIPS_PC16 global_label
# ELF-NXX: 10 00 00 00 b 4
# ELF-NXX-NEXT: R_MIPS_PC16/R_MIPS_NONE/R_MIPS_NONE global_label
j .text
nop
# NORMAL: b .text # encoding: [0x10,0x00,A,A]
# NORMAL: # fixup A - offset: 0, value: .text-4, kind: fixup_Mips_PC16
# MICRO: b .text # encoding: [0x94,0x00,A,A]
# MICRO: # fixup A - offset: 0, value: .text, kind: fixup_MICROMIPS_PC16_S1
# ELF-O32: 10 00 ff ff b 0
# ELF-O32-NEXT: 00000018: R_MIPS_PC16 .text
# ELF-NXX: 10 00 00 00 b 4
# ELF-NXX-NEXT: R_MIPS_PC16/R_MIPS_NONE/R_MIPS_NONE .text
j 1f
nop
# NORMAL: b {{.*}}tmp0{{.*}} # encoding: [0x10,0x00,A,A]
# NORMAL: # fixup A - offset: 0, value: {{.*}}tmp0{{.*}}-4, kind: fixup_Mips_PC16
# MICRO: b {{.*}}tmp0{{.*}} # encoding: [0x94,0x00,A,A]
# MICRO: # fixup A - offset: 0, value: {{.*}}tmp0{{.*}}, kind: fixup_MICROMIPS_PC16_S1
# ELF-O32: 10 00 00 04 b 20 <local_label+0x34>
# ELF-NXX: 10 00 00 04 b 20 <local_label+0x34>
.local forward_local
j forward_local
nop
# NORMAL: b forward_local # encoding: [0x10,0x00,A,A]
# NORMAL: # fixup A - offset: 0, value: forward_local-4, kind: fixup_Mips_PC16
# MICRO: b forward_local # encoding: [0x94,0x00,A,A]
# MICRO: # fixup A - offset: 0, value: forward_local, kind: fixup_MICROMIPS_PC16_S1
# ELF-O32: 10 00 00 04 b 20 <forward_local>
# ELF-NXX: 10 00 00 04 b 20 <forward_local>
j 0x4
# NORMAL: b 4 # encoding: [0x10,0x00,0x00,0x01]
# MICRO: b 4 # encoding: [0x94,0x00,0x00,0x02]
# ELF-O32: 10 00 00 01 b 8
# ELF-NXX: 10 00 00 01 b 8
.end local_label
1:
nop
nop
forward_local: