llvm-project/llvm/test/MC/ARM/multi-section-mapping.s
Weiming Zhao 74a7fa0594 Reland r298901 with modifications (reverted in r298932)
Dont emit Mapping symbols for sections that contain only data.

Summary:
Dont emit mapping symbols for sections that contain only data.

Reviewers: rengolin, weimingz, kparzysz, t.p.northover, peter.smith

Reviewed By: t.p.northover

Patched by Shankar Easwaran <shankare@codeaurora.org>

Subscribers: alekseyshl, t.p.northover, llvm-commits

Differential Revision: https://reviews.llvm.org/D30724

llvm-svn: 299392
2017-04-03 21:50:04 +00:00

35 lines
930 B
ArmAsm

@ RUN: llvm-mc -triple=armv7-linux-gnueabi -filetype=obj < %s | llvm-objdump -t - | FileCheck %s
.text
add r0, r0, r0
@ .wibble should *not* inherit .text's mapping symbol. It's a completely different section.
.section .wibble
add r0, r0, r0
@ A section should be able to start with a $t
.section .starts_thumb
.thumb
adds r0, r0, r0
@ A setion should be able to start with a $d
.section .starts_data
.word 42
@ Changing back to .text should not emit a redundant $a
.text
.arm
add r0, r0, r0
@ With all those constraints, we want:
@ + .text to have $a at 0 and no others
@ + .wibble to have $a at 0
@ + .starts_thumb to have $t at 0
@ + .starts_data to have $d at 0
@ CHECK: 00000000 .text 00000000 $a
@ CHECK-NEXT: 00000000 .wibble 00000000 $a
@ CHECK-NEXT: 00000000 .starts_thumb 00000000 $t
@ CHECK-NOT: ${{[adt]}}