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| author | Jeff Law <law@gcc.gnu.org> | 2018-01-03 14:25:10 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2018-01-03 14:25:10 -0700 |
| commit | 4bfb8e1143f4626e12df348a1bde34030c0fb2e7 (patch) | |
| tree | b9a574fdad7d1e20dfd6905d89379d0a719e9370 /gcc/cse.c | |
| parent | e3bd17639b20e009238b15b2354bb0e87e29703e (diff) | |
| download | gcc-4bfb8e1143f4626e12df348a1bde34030c0fb2e7.zip gcc-4bfb8e1143f4626e12df348a1bde34030c0fb2e7.tar.gz gcc-4bfb8e1143f4626e12df348a1bde34030c0fb2e7.tar.bz2 | |
re PR target/83641 (-fstack-clash-protection generates incorrect CFI on i386)
PR target/83641
* config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
and add REG_CFA_ADJUST_CFA notes in that case to both insns.
PR target/83641
* config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
explicitly probe *sp in a noreturn function if there were any callee
register saves or frame pointer is needed.
PR target/83641
* gcc.target/i386/stack-check-17.c: New test.
* gcc.target/i386/stack-check-12.c: Drop unnecessary asm.
From-SVN: r256191
Diffstat (limited to 'gcc/cse.c')
0 files changed, 0 insertions, 0 deletions