diff options
Diffstat (limited to 'test/ELF/arm-bl-v6.s')
| -rw-r--r-- | test/ELF/arm-bl-v6.s | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/test/ELF/arm-bl-v6.s b/test/ELF/arm-bl-v6.s index c27a99e6b9e7..13be7694120d 100644 --- a/test/ELF/arm-bl-v6.s +++ b/test/ELF/arm-bl-v6.s @@ -1,22 +1,23 @@ // REQUIRES: arm -// RUN: llvm-mc -filetype=obj -triple=arm-none-linux-gnueabi %s -o %t -// RUN: ld.lld %t -o /dev/null 2>&1 | FileCheck %s +// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv6-none-linux-gnueabi %s -o %t +// RUN: ld.lld %t -o %t2 2>&1 +// RUN: llvm-objdump -d -triple=armv6-none-linux-gnueabi -start-address=69632 -stop-address=69640 %t2 | FileCheck -check-prefix=CHECK-ARM1 %s +// RUN: llvm-objdump -d -triple=thumbv6-none-linux-gnueabi %t2 -start-address=69640 -stop-address=69644 | FileCheck -check-prefix=CHECK-THUMB1 %s +// RUN: llvm-objdump -d -triple=armv6-none-linux-gnueabi -start-address=2166796 -stop-address=2166804 %t2 | FileCheck -check-prefix=CHECK-ARM2 %s +// RUN: llvm-objdump -d -triple=thumbv6-none-linux-gnueabi %t2 -start-address=6365184 -stop-address=6365186 | FileCheck -check-prefix=CHECK-THUMB2 %s // On Arm v6 the range of a Thumb BL instruction is only 4 megabytes as the // extended range encoding is not supported. The following example has a Thumb // BL that is out of range on ARM v6 and requires a range extension thunk. // As v6 does not support MOVT or MOVW instructions the Thunk must not -// use these instructions either. At present we don't support v6 so we give a -// warning for unsupported features. +// use these instructions either. + -// CHECK: warning: lld uses extended branch encoding, no object with architecture supporting feature detected. -// CHECK-NEXT: warning: lld may use movt/movw, no object with architecture supporting feature detected. // ARM v6 supports blx so we shouldn't see the blx not supported warning. // CHECK-NOT: warning: lld uses blx instruction, no object with architecture supporting feature detected. .text .syntax unified .cpu arm1176jzf-s - .eabi_attribute 6, 6 @ Tag_CPU_arch .globl _start .type _start,%function .balign 0x1000 @@ -24,6 +25,10 @@ _start: bl thumbfunc bx lr +// CHECK-ARM1: Disassembly of section .text: +// CHECK-ARM1-NEXT: _start: +// CHECK-ARM1-NEXT: 11000: 00 00 00 fa blx #0 <thumbfunc> +// CHECK-ARM1-NEXT: 11004: 1e ff 2f e1 bx lr .thumb .section .text.2, "ax", %progbits .globl thumbfunc @@ -31,11 +36,17 @@ _start: thumbfunc: bl farthumbfunc -// 6 Megabytes, enough to make farthumbfunc out of range of caller on a v6 -// Arm, but not on a v7 Arm. +// CHECK-THUMB1: thumbfunc: +// CHECK-THUMB1-NEXT: 11008: 00 f2 00 e8 blx #2097152 +// 6 Megabytes, enough to make farthumbfunc out of range of caller +// on a v6 Arm, but not on a v7 Arm. + .section .text.3, "ax", %progbits .space 0x200000 - +// CHECK-ARM2: __ARMv5ABSLongThunk_farthumbfunc: +// CHECK-ARM2-NEXT: 21100c: 04 f0 1f e5 ldr pc, [pc, #-4] +// CHECK-ARM2: $d: +// CHECK-ARM2-NEXT: 211010: 01 20 61 00 .word 0x00612001 .section .text.4, "ax", %progbits .space 0x200000 @@ -49,3 +60,5 @@ thumbfunc: .type farthumbfunc,%function farthumbfunc: bx lr +// CHECK-THUMB2: farthumbfunc: +// CHECK-THUMB2-NEXT: 612000: 70 47 bx lr |