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| author | Alex Coplan <alex.coplan@arm.com> | 2021-05-11 13:11:09 +0100 |
|---|---|---|
| committer | Alex Coplan <alex.coplan@arm.com> | 2021-05-11 13:11:09 +0100 |
| commit | 2ac1f0eb3887335b7a7e845812956fa436e72a91 (patch) | |
| tree | 669c82dc015203eaa09cf5903e8b04b7adf6f3c6 /gcc/ada/gcc-interface/ada-tree.h | |
| parent | 28de75d27685b2735612d264bb96f39001f4d836 (diff) | |
| download | gcc-2ac1f0eb3887335b7a7e845812956fa436e72a91.zip gcc-2ac1f0eb3887335b7a7e845812956fa436e72a91.tar.gz gcc-2ac1f0eb3887335b7a7e845812956fa436e72a91.tar.bz2 | |
arm: Avoid emitting bogus CFA adjusts for CMSE nonsecure calls [PR99725]
The PR shows us attaching REG_CFA_ADJUST_CFA notes to stack pointer
adjustments emitted in cmse_nonsecure_call_inline_register_clear (when
-march=armv8.1-m.main). However, the stack pointer is not guaranteed to
be the CFA reg. If we're at -O0 or we have -fno-omit-frame-pointer, then
the frame pointer will be used as the CFA reg, and these notes on the sp
adjustments will lead to ICEs in dwarf2out_frame_debug_adjust_cfa.
This patch avoids emitting these notes if the current function has a
frame pointer.
gcc/ChangeLog:
PR target/99725
* config/arm/arm.c (cmse_nonsecure_call_inline_register_clear):
Avoid emitting CFA adjusts on the sp if we have the fp.
gcc/testsuite/ChangeLog:
PR target/99725
* gcc.target/arm/cmse/pr99725.c: New test.
Diffstat (limited to 'gcc/ada/gcc-interface/ada-tree.h')
0 files changed, 0 insertions, 0 deletions