[Bug target/115042] New: valgrind test fails to compile on armv7

[raj.khem at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115042

            Bug ID: 115042
           Summary: valgrind test fails to compile on armv7
           Product: gcc
           Version: 14.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: raj.khem at gmail dot com
  Target Milestone: ---

Created attachment 58180
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58180&action=edit
testcase

Attached test comes from valgrind, it worked fine with gcc-13 but can not be
built with gcc-14 or trunk with -O0, if any other -O<n> is used then it
compiles ok but valgrind uses -O0 for this given testcase.

arm-yoe-linux-gnueabi/arm-yoe-linux-gnueabi-gcc -mthumb -mfpu=neon
-mfloat-abi=hard -mcpu=cortex-a15 -no-pie -fno-PIE -O0 v6media.i -c

v6media.c:5905:40: error: 'asm' operand has impossible constraints or there are
not enough registers
 5905 | TESTINST4("smlaltt  r0, r1, r2, r3",
      |                                        ^
...