Test case mis-categorized as UNSUPPORTED?

["Bin.Cheng" <amker dot cheng at gmail dot com>]

Hi,
Below test is supposed to be compiled and run, but we failed to link
the binary with tiny memory model.

spawn /data/work/build-aarch64_be-none-elf/obj/gcc2/gcc/testsuite/g++14/../../xg++
-B/data/work/build-aarch64_be-none-elf/obj/gcc2/gcc/testsuite/g++14/../../
/data/work/src/gcc/gcc/testsuite/g++.dg/torture/pr67600.C
-fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++
-I/data/work/build-aarch64_be-none-elf/obj/gcc2/aarch64_be-none-elf/libstdc++-v3/include/aarch64_be-none-elf
-I/data/work/build-aarch64_be-none-elf/obj/gcc2/aarch64_be-none-elf/libstdc++-v3/include
-I/data/work/src/gcc/libstdc++-v3/libsupc++
-I/data/work/src/gcc/libstdc++-v3/include/backward
-I/data/work/src/gcc/libstdc++-v3/testsuite/util -fmessage-length=0
-O2 -flto -fuse-linker-plugin -fno-fat-lto-objects
-specs=aem-validation.specs
-L/data/work/build-aarch64_be-none-elf/obj/gcc2/aarch64_be-none-elf/./libstdc++-v3/src/.libs
-B/data/work/build-aarch64_be-none-elf/obj/gcc2/aarch64_be-none-elf/./libstdc++-v3/src/.libs
-lm -mcmodel=tiny -o ./pr67600.exe
/tmp/ccd32hub.ltrans0.ltrans.o: In function `main':
<artificial>:(.text.startup+0x68): relocation truncated to fit:
R_AARCH64_ADR_PREL_LO21 against symbol `std::cout' defined in
.bss._ZSt4cout section in
/data/work/build-aarch64_be-none-elf/obj/gcc2/aarch64_be-none-elf/./libstdc++-v3/src/.libs/libstdc++.a(globals_io.o)
collect2: error: ld returned 1 exit status
compiler exited with status 1
output is:
/tmp/ccd32hub.ltrans0.ltrans.o: In function `main':
<artificial>:(.text.startup+0x68): relocation truncated to fit:
R_AARCH64_ADR_PREL_LO21 against symbol `std::cout' defined in
.bss._ZSt4cout section in
/data/work/build-aarch64_be-none-elf/obj/gcc2/aarch64_be-none-elf/./libstdc++-v3/src/.libs/libstdc++.a(globals_io.o)
collect2: error: ld returned 1 exit status

UNSUPPORTED: g++.dg/torture/pr67600.C   -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects : memory full

In my understanding, dg-do run test case should be marked as
FAIL&UNRESOLVED if binary file can't be generated.  But here it's
categorized as an UNSUPPORTED test.  This could be mis-leading
sometimes since unsupported test could be ignored.

Any idea why it acts in this way?

Thanks,
bin