Re: RFA: make scan-assembler* ignore LTO sections (Was: Re: committed [RISC-V]: Harden test scan patterns)

[Jeff Law <jeffreyalaw@gmail.com>]

On 11/8/23 09:00, Joern Rennecke wrote:
> On Fri, 29 Sept 2023 at 14:54, Jeff Law<jeffreyalaw@gmail.com>  wrote:
>> ...  Joern  can you post a follow-up manual twiddle so
>> that other ports can follow your example and avoid this problem?
>>
>> THanks,
>>
>> jeff
> The attached patch makes the scan-assembler* directives ignore the LTO
> sections.
> 
> Regression tested (using QEMU) for
>      riscv-sim
>      riscv-sim/-march=rv32gcv_zfh/-mabi=ilp32d/-ftree-vectorize/--param=riscv-autovec-preference=scalable
>      riscv-sim/-march=rv32imac/-mabi=ilp32
>      riscv-sim/-march=rv64gcv_zfh_zvfh_zba_zbb_zbc_zicond_zicboz_zawrs/-mabi=lp64d/-ftree-vectorize/--param=riscv-autovec-preference=scalable
>      riscv-sim/-march=rv64imac/-mabi=lp64
> 
> 
> scanasm-diff-5.txt
> 
> 2023-11-08  Joern Rennecke<joern.rennecke@embecosm.com>
> 
> gcc/testsuite/
> 	* lib/scanasm.exp (scan-assembler-times): Disregard LTO sections.
> 	(scan-assembler-dem, scan-assembler-dem-not): Likewise.
> 	(dg-scan): Likewise, if name starts with scan-assembler.
> 	(scan-raw-assembler): New proc.
> 	* gcc.dg/pr61868.c: Use scan-raw-assembler.
> 	* gcc.dg/scantest-lto.c: New test.
> gcc/
> 	* doc/sourcebuild.texi (Scan the assembly output): Document change.
Looks reasonable to me. OK for the trunk.
jeff