[Bug target/113275] New: tests pr110268-1.c pr110268-2.c csinc-1.c csinv-1.c fail after gcc-14-5396-ged52bc2e30c

[Bug target/113275] New: tests pr110268-1.c pr110268-2.c csinc-1.c csinv-1.c fail after gcc-14-5396-ged52bc2e30c

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113275

            Bug ID: 113275
           Summary: tests pr110268-1.c pr110268-2.c csinc-1.c csinv-1.c
                    fail after gcc-14-5396-ged52bc2e30c
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: clyon at gcc dot gnu.org
  Target Milestone: ---

After commit g:ed52bc2e30c (arm: testsuite: avoid hard-float ABI
incompatibility with -march) a few testcases started to fail on arm-eabi:

* when targeting cortex-m33
(-mthumb/-march=armv8-m.main+dsp+fp/-mtune=cortex-m33/-mfloat-abi=hard/-mfpu=auto)
FAIL: gcc.target/arm/pr110268-1.c (test for excess errors)
FAIL: gcc.target/arm/pr110268-2.c (test for excess errors)

* when targeting cortex-m7
(-mthumb/-march=armv7e-m+fp.dp/-mtune=cortex-m7/-mfloat-abi=hard/-mfpu=auto)
FAIL: gcc.target/arm/csinc-1.c scan-assembler csinc\tr[0-9]*.*ne
FAIL: gcc.target/arm/csinv-1.c scan-assembler csinv\tr[0-9]*.*ne
FAIL: gcc.target/arm/pr110268-1.c (test for excess errors)
FAIL: gcc.target/arm/pr110268-2.c (test for excess errors)

GCC is configured with
--disable-multilib --with-mode=thumb --with-cpu=cortex-m7 --with-float=hard
(or with --with-cpu=cortex-m33)

For gcc.target/arm/pr110268-[12].c, gcc.log says:
Executing on host:
/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/destdir/x86_64-pc-linux-gnu/bin/arm-eabi-gcc
 
/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/snapshots/gcc.git~master/gcc/testsuite/gcc.target/arm/pr110268-1.c
 -mthumb -march=armv7e-m+fp.dp -mtune=cortex-m7 -mfloat-abi=hard -mfpu=auto  
-fdiagnostics-plain-output   -ansi -pedantic-errors -mfloat-abi=softfp
-mfpu=auto -march=armv8.1-m.main+mve -mthumb --save-temps -O2 -flto  
-specs=rdimon.specs  -lm  -o pr110268-1.exe    (timeout = 600)
/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/destdir/x86_64-pc-linux-gnu/lib/gcc/arm-eabi/14.0.0/../../../../arm-eabi/bin/ld:
error: pr110268-1.exe uses VFP register arguments,
./pr110268-1.ltrans0.ltrans.o does not
/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/destdir/x86_64-pc-linux-gnu/lib/gcc/arm-eabi/14.0.0/../../../../arm-eabi/bin/ld:
failed to merge target specific data of file ./pr110268-1.ltrans0.ltrans.o