From 26092cc782a0e027601d4764caa15accefdb56d1 Mon Sep 17 00:00:00 2001 From: Thomas Preud'homme Date: Wed, 17 May 2017 09:18:25 +0000 Subject: [PATCH] Fix comment for cmse_nonsecure_call_clear_caller_saved 2017-05-17 Thomas Preud'homme 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 --- gcc/ChangeLog | 6 ++++++ 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 + + * 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 + 2017-05-17 Eric Botcazou * compare-elim.c (equivalent_reg_at_start): Adjust outdated comment.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) -- 2.7.4