https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116080
Christophe Lyon <clyon at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
CC| |clyon at gcc dot gnu.org
--- Comment #13 from Christophe Lyon <clyon at gcc dot gnu.org> ---
As of r15-3812-g4700ad1c78ccd7, musttail7.c still fails on arm-eabi with
default configuration / test flags:
FAIL: c-c++-common/musttail7.c -std=c++11 (test for excess errors)
Excess errors:
/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/snapshots/gcc.git~master/gcc/testsuite/c-c++-common/musttail7.c:8:30:
error: cannot tail-call: target is not able to optimize the call into a sibling
call
Note that it passes on arm-eabi when forcing some configuration flags / test
flags, for instance:
- OK with qemu/-marm/-march=armv7-a/-mfpu=vfpv3-d16/-mfloat-abi=softfp
- OK with
qemu/-mthumb/-march=armv8-m.main+dsp+fp/-mtune=cortex-m33/-mfloat-abi=hard/-mfpu=auto
so maybe the problem is just related to the default (armv4t IIRC) not being
handled correctly.
