On 2/2/2026 1:13 AM, Andrew Pinski wrote:
In the testcase ifcvt is trying to do a emit_store_flag into a XImode.
That will cause an ICE because XImode does not have any arithmetic optabs
associated with it. This is because it is greater than MAX_FIXED_MODE_SIZE
(along other things).
noce_emit_store_flag already has code to reject non-scalar modes, so
this adds a new check for modes that are greater than MAX_FIXED_MODE_SIZE.
Bootstrapped and tested on aarch64-linux-gnu.
PR rtl-optimization/123294
gcc/ChangeLog:
* ifcvt.cc (noce_emit_store_flag): Reject modes
greater than MAX_FIXED_MODE_SIZE.
gcc/testsuite/ChangeLog:
* gcc.dg/pr123294-1.c: New test.
* gcc.target/aarch64/pr123294-1.c: New test.
OK once Kyrylo' s testsuite comments are addressed.
jeff
