diff options
| author | Thomas Preud'homme <thomas.preudhomme@arm.com> | 2017-05-17 09:18:25 +0000 |
|---|---|---|
| committer | Thomas Preud'homme <thopre01@gcc.gnu.org> | 2017-05-17 09:18:25 +0000 |
| commit | 26092cc782a0e027601d4764caa15accefdb56d1 (patch) | |
| tree | 6a2558d6f1ae297476ac2e73a35d3ebdf8595a66 /gcc | |
| parent | d2d61a746904c8e530c1177232d8b49b92b25131 (diff) | |
| download | gcc-26092cc782a0e027601d4764caa15accefdb56d1.zip gcc-26092cc782a0e027601d4764caa15accefdb56d1.tar.gz gcc-26092cc782a0e027601d4764caa15accefdb56d1.tar.bz2 | |
Fix comment for cmse_nonsecure_call_clear_caller_saved
2017-05-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
* config/arm/arm.c (cmse_nonsecure_call_clear_caller_saved): Refer
readers to __gnu_cmse_nonsecure_call libcall for saving, clearing and
restoring of callee-saved registers.
From-SVN: r248142
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 7 |
2 files changed, 10 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 219836c..4668e35 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2017-05-17 Thomas Preud'homme <thomas.preudhomme@arm.com> + + * config/arm/arm.c (cmse_nonsecure_call_clear_caller_saved): Refer + readers to __gnu_cmse_nonsecure_call libcall for saving, clearing and + restoring of callee-saved registers. + 2017-05-17 Eric Botcazou <ebotcazou@adacore.com> * compare-elim.c (equivalent_reg_at_start): Adjust outdated comment. diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 3ae999c..a888e70 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -16909,9 +16909,10 @@ compute_not_to_clear_mask (tree arg_type, rtx arg_rtx, int regno, return not_to_clear_mask; } -/* Saves callee saved registers, clears callee saved registers and caller saved - registers not used to pass arguments before a cmse_nonsecure_call. And - restores the callee saved registers after. */ +/* Clears caller saved registers not used to pass arguments before a + cmse_nonsecure_call. Saving, clearing and restoring of callee saved + registers is done in __gnu_cmse_nonsecure_call libcall. + See libgcc/config/arm/cmse_nonsecure_call.S. */ static void cmse_nonsecure_call_clear_caller_saved (void) |