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[Bug target/68471] ICE: in df_refs_verify, at df-scan.c:4022 with -mmitigate-rop and long double
- From: "bernds at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 03 Dec 2015 14:18:07 +0000
- Subject: [Bug target/68471] ICE: in df_refs_verify, at df-scan.c:4022 with -mmitigate-rop and long double
- Auto-submitted: auto-generated
- References: <bug-68471-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68471
--- Comment #2 from Bernd Schmidt <bernds at gcc dot gnu.org> ---
Author: bernds
Date: Thu Dec 3 14:17:35 2015
New Revision: 231228
URL: https://gcc.gnu.org/viewcvs?rev=231228&root=gcc&view=rev
Log:
Fix some issues with the ROP patch (PR 68471, 68472)
PR target/68471
PR target/68472
* config/i386/i386.c (ix86_mitigate_rop): Don't call
compute_bb_for_insn again. Call df_insn_rescan_all.
* config/i386/i386.md (set_got_rex64): Override modrm_class.
* regrename.c (build_def_use): Ignore stack regs if regstack_completed.
testsuite/
* gcc.target/i386/rop1.c: New test.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/config/i386/i386.md
trunk/gcc/regrename.c
trunk/gcc/testsuite/ChangeLog