https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117561
Bug ID: 117561
Summary: z13/z14 Please add a scalar_test_data_class builtin
Product: gcc
Version: 13.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jens.seifert at de dot ibm.com
Target Milestone: ---
I found no way to efficient check fp data class on z using wftcidb (z13) and
wftcisb(z14) instruction.
For PowerPC scalar_test_data_class exists and provides and easy way to check
for data class.
fpclassify and all related functions gets inlined by gcc, but overall the
implementation is quite inefficient on z13/z14.
