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| author | Bernd Schmidt <bernds@redhat.com> | 2015-12-03 14:17:35 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2015-12-03 14:17:35 +0000 |
| commit | 47e16c6a6aed01dde2774a5490a3e5c7f97e9f92 (patch) | |
| tree | 1a704a39609e4dd7faea72ad422cfe306701f3fa /gcc/regrename.c | |
| parent | 9a863523b43ee0ddbfbbb4ce82edc577b6f372de (diff) | |
| download | gcc-47e16c6a6aed01dde2774a5490a3e5c7f97e9f92.zip gcc-47e16c6a6aed01dde2774a5490a3e5c7f97e9f92.tar.gz gcc-47e16c6a6aed01dde2774a5490a3e5c7f97e9f92.tar.bz2 | |
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.
From-SVN: r231228
Diffstat (limited to 'gcc/regrename.c')
| -rw-r--r-- | gcc/regrename.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/regrename.c b/gcc/regrename.c index e2a1e83..701e078 100644 --- a/gcc/regrename.c +++ b/gcc/regrename.c @@ -1677,6 +1677,12 @@ build_def_use (basic_block bb) untracked_operands |= 1 << matches; } } +#ifdef STACK_REGS + if (regstack_completed + && REG_P (op) + && IN_RANGE (REGNO (op), FIRST_STACK_REG, LAST_STACK_REG)) + untracked_operands |= 1 << i; +#endif /* If there's an in-out operand with a register that is not being tracked at all yet, open a chain. */ if (recog_data.operand_type[i] == OP_INOUT |