https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115827
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|uninit-17.c no longer emits |[13/14/15 Regression]
|expected warning on |uninit-17.c no longer emits
|arm-none-eabi |expected warning on arm
| |soft-float
Blocks| |24639
Depends on| |18501
Keywords| |testsuite-fail
Target Milestone|--- |13.4
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The difference between GCC 12 and 13 is:
GCC 13:
REALPART_EXPR <<retval>> = 1.0e+0;
IMAGPART_EXPR <<retval>> = 0.0;
GCC 12:
<retval> = __complex__ (1.0e+0, 0.0);
In complex lowering which was done by r13-1762-gf9d4c3b45c5ed5 .
Hard float vs soft float difference is how the return is handled.
I am 100% sure this is basically a dup of bug 18501 (ccp in the end removes the
uninitialized usage) but only happens with soft-float due to the way complex
returns are handled.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18501
[Bug 18501] [11/12/13/14/15 Regression] Missing 'used uninitialized' warning
(CCP)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24639
[Bug 24639] [meta-bug] bug to track all Wuninitialized issues
