On 2024-08-16 16:07, Jeff Law wrote:
On 8/16/24 4:12 AM, Torbjörn SVENSSON wrote:
Ok for trunk and releases/gcc-14?
Verified this on x86_64 and arm-none-eabi.
Don't know if the other "truth type" dg-lines can be removed as well.
--
On Cortex-M55 with MVE, the test case fails due to -INT_MAX being
undefined. Adding -fwrapv solves the issues.
Regtested on x86_64-pc-linux and arm-none-eabi for
Cortex-M0/M3/M4/M7/M33/M55/M85/A7.
gcc/testsuite/ChangeLog:
* gcc.dg/signbit-5.c: Add -fwrapv and remove x86 exception.
Presumably the -x[i] when i == 0 cases? I'm a bit surprised that doing
a -INT_MIN didn't produce -INT_MIN, but it's still a bad thing to do due
to the overflow.
On the Cortex-M55 with MVE, -INT_MIN will result in INT_MIN, i.e. a
large negative value. The negated INT_MIN value cannot be represented
using the two complement form with the same number of bits.
So, OK for the trunk and release branches. If we need to adjust risc-v
we'll know if a few days :-)
Ok.
Pushed as r15-2950 and r14-10592.
Kind regards,
Torbjörn
