https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78094
Bug ID: 78094
Summary: limit in mask targets
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: ikozhukhov at gmail dot com
Target Milestone: ---
i have DilOS (illumos based platfork).
try to port 2 additional features from 5.4 (they not included to original gcc):
-msave-args
-mforce-save-regs-using-mov
where we have 2 additional definitions in gcc/config/i386/i386.opt:
+msave-args
+Target Report Mask(SAVE_ARGS)
+Save integer arguments on the stack at function entry
+
+mforce-save-regs-using-mov
+Target Report Mask(FORCE_SAVE_REGS_USING_MOV)
+Save registers using push in function prologues. This is intentionally
+undocumented and used for msave-args testing.
but with bootstrap i can see issue with more target masks with #error.
i have found limitation in gcc/opth-gen.awk
line 374:
else if (masknum[var] > 31) {
if (var == "")
print "#error too many target masks"
else
print "#error too many masks for " var
}
could you please add more mask targets - or we can just update 31 to more?
or need additional others changes?
