llvm-project/lld/test/ELF/arm-thumb-branch.s

68 lines
2.1 KiB
ArmAsm

// REQUIRES: arm
// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %S/Inputs/far-arm-thumb-abs.s -o %tfar
// RUN: echo "SECTIONS { \
// RUN: . = 0xb4; \
// RUN: .callee1 : { *(.callee_low) } \
// RUN: .caller : { *(.text) } \
// RUN: .callee2 : { *(.callee_high) } } " > %t.script
// RUN: ld.lld --script %t.script %t %tfar -o %t2
// RUN: llvm-objdump -d %t2 | FileCheck %s
.syntax unified
.thumb
.section .callee_low, "ax",%progbits
.align 2
.type callee_low,%function
callee_low:
bx lr
.section .text, "ax",%progbits
.globl _start
.balign 0x10000
.type _start,%function
_start:
bl callee_low
b callee_low
beq callee_low
bl callee_high
b callee_high
bne callee_high
bl far_uncond
b far_uncond
bgt far_cond
bx lr
.section .callee_high, "ax",%progbits
.align 2
.type callee_high,%function
callee_high:
bx lr
// CHECK: Disassembly of section .callee1:
// CHECK-EMPTY:
// CHECK-NEXT: <callee_low>:
// CHECK-NEXT: b4: 70 47 bx lr
// CHECK-EMPTY:
// CHECK-NEXT: Disassembly of section .caller:
// CHECK-EMPTY:
// CHECK-NEXT: <_start>:
// CHECK-NEXT: 10000: f0 f7 58 f8 bl 0xb4 <callee_low>
// CHECK-NEXT: 10004: f0 f7 56 b8 b.w 0xb4 <callee_low>
// CHECK-NEXT: 10008: 30 f4 54 a8 beq.w 0xb4 <callee_low>
// CHECK-NEXT: 1000c: 00 f0 0c f8 bl 0x10028 <callee_high>
// CHECK-NEXT: 10010: 00 f0 0a b8 b.w 0x10028 <callee_high>
// CHECK-NEXT: 10014: 40 f0 08 80 bne.w 0x10028 <callee_high>
/// far_uncond = 0x101001b
// CHECK-NEXT: 10018: ff f3 ff d7 bl 0x101001a
// CHECK-NEXT: 1001c: ff f3 fd 97 b.w 0x101001a
/// far_cond = 0x110023
// CHECK-NEXT: 10020: 3f f3 ff af bgt.w 0x110022
// CHECK-NEXT: 10024: 70 47 bx lr
// CHECK-NEXT: 10026:
// CHECK-EMPTY:
// CHECK-NEXT: Disassembly of section .callee2:
// CHECK-EMPTY:
// CHECK-NEXT: <callee_high>:
// CHECK-NEXT: 10028: 70 47 bx lr