[Bug target/120011] [15/16 Regression] Impossible asm constraints in 32 bit libgcc when compiling with -march=x86-64-v4

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120011

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |15.2
            Summary|[15 Regression] Impossible  |[15/16 Regression]
                   |asm constraints in 32 bit   |Impossible asm constraints
                   |libgcc when compiling with  |in 32 bit libgcc when
                   |-march=x86-64-v4 -Os        |compiling with
                   |                            |-march=x86-64-v4
      Known to work|14.2.0                      |
      Known to fail|15.1.0                      |

--- Comment #6 from Sam James <sjames at gcc dot gnu.org> ---
I can reproduce with -O{s,z} on releases/gcc-15 with your reduced testcase at
r15-9591-g4b0d25e72624b9 and trunk.