[Bug testsuite/108723] New: [13 Regression] Recent changes broke risc-v testsuite

[law at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108723

            Bug ID: 108723
           Summary: [13 Regression] Recent changes broke risc-v testsuite
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: law at gcc dot gnu.org
  Target Milestone: ---

This change:

commit 3cd08f7168c196d7a481b9ed9f4289fd1f14eea8 (refs/bisect/bad)
Author: Andreas Schwab <sch...@suse.de>
Date:   Wed Jan 25 12:00:09 2023 +0100

    riscv: Enable -fasynchronous-unwind-tables by default on Linux

Broke several tests in the risc-v testsuite for riscv64-unknown-linux-gnu:

FAIL: gcc.target/riscv/shorten-memrefs-2.c   -Os   scan-assembler
store1a:\n\taddi
FAIL: gcc.target/riscv/shorten-memrefs-2.c   -Os   scan-assembler
load1r:\n\taddi
FAIL: gcc.target/riscv/shorten-memrefs-2.c   -Os   scan-assembler
load2r:\n\taddi
XPASS: gcc.target/riscv/shorten-memrefs-3.c   -Os   scan-assembler-not
load1a:\n\taddi
FAIL: gcc.target/riscv/shorten-memrefs-5.c   -Os   scan-assembler
store1a:\n\taddi
FAIL: gcc.target/riscv/shorten-memrefs-5.c   -Os   scan-assembler
load1r:\n\taddi
XPASS: gcc.target/riscv/shorten-memrefs-6.c   -Os   scan-assembler-not
load1a:\n\taddi
FAIL: gcc.target/riscv/shorten-memrefs-8.c   -Os   scan-assembler
store:\n\taddi\ta[0-7],a[0-7],1
FAIL: gcc.target/riscv/shorten-memrefs-8.c   -Os   scan-assembler
load:\n\taddi\ta[0-7],a[0-7],1


I'm pretty sure the change causes new labels to be inserted in places where the
scan-assembler strings are not expecting to find them.