https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84239
--- Comment #1 from itsimbal at gcc dot gnu.org --- Author: itsimbal Date: Wed Feb 14 15:06:21 2018 New Revision: 257660 URL: https://gcc.gnu.org/viewcvs?rev=257660&root=gcc&view=rev Log: Reimplement CET intrinsics for rdssp/incssp insn. Introduce a couple of new CET intrinsics for reading and updating a shadow stack pointer (_get_ssp and _inc_ssp). They replace the existing _rdssp[d|q] and _incssp[d|q] instrinsics. PR target/84239 * gcc/config/i386/cetintrin.h: Remove _rdssp[d|q] and add _get_ssp intrinsics. Remove argument from __builtin_ia32_rdssp[d|q]. * gcc/config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID. * gcc/config/i386/i386-builtin.def: Remove argument from __builtin_ia32_rdssp[d|q]. * gcc/config/i386/i386.c: Use UINT_FTYPE_VOID. Use ix86_expand_special_args_builtin for _rdssp[d|q]. * gcc/config/i386/i386.md: Remove argument from rdssp[si|di] insn. Clear register before usage. * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q]. Add documentation for new _get_ssp and _inc_ssp intrinsics. * testsuite/gcc.target/i386/cet-intrin-3.c: Use new _get_ssp and _inc_ssp intrinsics. * testsuite/gcc.target/i386/cet-intrin-4.c: Likewise. * testsuite/gcc.target/i386/cet-rdssp-1.c: Remove argument from __builtin_ia32_rdssp[d|q]. * libgcc/config/i386/shadow-stack-unwind.hi (_Unwind_Frames_Extra): Use new _get_ssp and _inc_ssp intrinsics. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/cetintrin.h trunk/gcc/config/i386/i386-builtin-types.def trunk/gcc/config/i386/i386-builtin.def trunk/gcc/config/i386/i386.c trunk/gcc/config/i386/i386.md trunk/gcc/doc/extend.texi trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.target/i386/cet-intrin-3.c trunk/gcc/testsuite/gcc.target/i386/cet-intrin-4.c trunk/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c trunk/libgcc/ChangeLog trunk/libgcc/config/i386/shadow-stack-unwind.h
