From 998b44c3601a971303c9ab71303d81b95ad81b4c Mon Sep 17 00:00:00 2001
From: Camil Staps
Date: Tue, 29 Nov 2016 22:32:53 +0000
Subject: Fix some more negative offsets in frontend/frontend.icl

---
 cgopt.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/cgopt.c b/cgopt.c
index 1cb802a..0d27fe6 100644
--- a/cgopt.c
+++ b/cgopt.c
@@ -921,6 +921,15 @@ void optimize_stack_access (struct basic_block *block,int *a_offset_p,int *b_off
 			{
 #  ifdef THUMB2
 				int offset=instruction->instruction_parameters[1].parameter_offset+=fix_a_offset;
+				if (offset < -255)
+				{
+					insert_decrement_a_stack_pointer (instruction,-offset);
+					instruction->instruction_parameters[1].parameter_offset=0;
+					if (instruction->instruction_next)
+						insert_decrement_a_stack_pointer (instruction->instruction_next,offset);
+					else
+						i_lea_id_r (-offset,A_STACK_POINTER,A_STACK_POINTER);
+				}
 #  endif
 				previous_a_stack_parameter=&instruction->instruction_parameters[1];
 				previous_a_stack_parameter_icode=IMOVE;
@@ -934,7 +943,7 @@ void optimize_stack_access (struct basic_block *block,int *a_offset_p,int *b_off
 					insert_decrement_a_stack_pointer (instruction,-offset);
 					instruction->instruction_parameters[0].parameter_offset=0;
 					if (instruction->instruction_next)
-						insert_decrement_a_stack_pointer (instruction->instruction_next,-offset);
+						insert_decrement_a_stack_pointer (instruction->instruction_next,offset);
 					else
 						i_lea_id_r (-offset,A_STACK_POINTER,A_STACK_POINTER);
 				}
-- 
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