From ccd84ec768417a8bc43fba8bbd8798aaaa558ac0 Mon Sep 17 00:00:00 2001
From: AMIR <31338382+amiremohamadi@users.noreply.github.com>
Date: Fri, 8 Nov 2024 15:12:30 +0330
Subject: [PATCH] fix: apply proper offset for pointers in unary operations
 (#45)

---
 examples/inp_pointer.c                     |   3 +
 parser/expr/expr.c                         |  11 +-
 tests/output/inp_pointer.c_asm_output.txt  | 558 +++++++++++----------
 tests/output/inp_pointer.c_lex_output.txt  | Bin 4214 -> 4444 bytes
 tests/output/inp_pointer.c_tree_output.txt |  20 +
 5 files changed, 338 insertions(+), 254 deletions(-)

diff --git a/examples/inp_pointer.c b/examples/inp_pointer.c
index 5a7a9f0..a3a52a5 100644
--- a/examples/inp_pointer.c
+++ b/examples/inp_pointer.c
@@ -14,6 +14,9 @@ int main()
         printf("*a: %d\n", *a++);
     }
 
+    printf("*--a %d\n", *--a);
+    printf("*--a %d\n", *--a);
+
     char *s = (char *)malloc(10 * sizeof(char));
     s[0] = '1';
     s[1] = 'h';
diff --git a/parser/expr/expr.c b/parser/expr/expr.c
index c963872..ffa4ec5 100644
--- a/parser/expr/expr.c
+++ b/parser/expr/expr.c
@@ -110,6 +110,13 @@ apply_result *unary_op_apply(parser_node *node, context *ctx)
 
     int op = unary_op->op;
 
+    int unit = 1;
+    if (operand->type->kind == TYPE_POINTER)
+    {
+        general_type *type = ((node_type *)operand->type->data)->type;
+        unit = type->size(type, ctx);
+    }
+
     if (op == TKN_MIN)
     {
         add_text(ctx, "neg rax");
@@ -122,12 +129,12 @@ apply_result *unary_op_apply(parser_node *node, context *ctx)
     }
     else if (op == TKN_MINMIN)
     {
-        add_text(ctx, "sub rax, 1");
+        add_text(ctx, "sub rax, %d", unit);
         move_reg_to_var(ctx, operand, "rax");
     }
     else if (op == TKN_PLUSPLUS)
     {
-        add_text(ctx, "add rax, 1");
+        add_text(ctx, "add rax, %d", unit);
         move_reg_to_var(ctx, operand, "rax");
     }
 
diff --git a/tests/output/inp_pointer.c_asm_output.txt b/tests/output/inp_pointer.c_asm_output.txt
index 8e65ba9..70ef4d1 100644
--- a/tests/output/inp_pointer.c_asm_output.txt
+++ b/tests/output/inp_pointer.c_asm_output.txt
@@ -3,12 +3,14 @@ __printf_size: equ 16
 __malloc_size: equ 16
 __temp_str_2 db `a[4] %d\n`, 0
 __temp_str_3 db `*a: %d\n`, 0
-__temp_str_4 db `s %c\n`, 0
-__temp_str_5 db `s %s`, 0
-__temp_str_6 db `arr[0][0] %d\n`, 0
-__temp_str_7 db `arr[1][0] %d\n`, 0
-__temp_str_8 db `arr[1][1] %d\n`, 0
-__main_size: equ 1168
+__temp_str_4 db `*--a %d\n`, 0
+__temp_str_5 db `*--a %d\n`, 0
+__temp_str_6 db `s %c\n`, 0
+__temp_str_7 db `s %s`, 0
+__temp_str_8 db `arr[0][0] %d\n`, 0
+__temp_str_9 db `arr[1][0] %d\n`, 0
+__temp_str_10 db `arr[1][1] %d\n`, 0
+__main_size: equ 1280
 section .text
 extern printf
 extern malloc
@@ -177,473 +179,525 @@ mov [rsp+184], rax
 jmp __tmp_label_4
 __tmp_label_5:
 ; exit loop
+mov rax, __temp_str_4
+mov [rsp+128], rax
+; unary op apply
+mov rax, rsp
+add rax, 0
+mov [rsp+136], rax
+; operand code: [rsp+0]
+mov rax, [rsp+0]
+sub rax, 8
+mov rbx, [rsp+136]
+mov [rbx], rax
+mov [rsp+144], rax
+; unary op finish
+mov rax, [rsp+144]
+mov [rsp+152], rax
+mov rax, [rax]
+mov [rsp+160], rax
+mov rax, [rsp+160]
+mov [rsp+168], rax
+mov rdi, [rsp+128]
+mov rsi, [rsp+168]
+mov rax, rsp
+add rax, 0
+mov [rsp+176], rax
+call printf
+mov [rsp+184], rax
+mov rax, __temp_str_5
+mov [rsp+184], rax
+; unary op apply
+mov rax, rsp
+add rax, 0
+mov [rsp+192], rax
+; operand code: [rsp+0]
+mov rax, [rsp+0]
+sub rax, 8
+mov rbx, [rsp+192]
+mov [rbx], rax
+mov [rsp+200], rax
+; unary op finish
+mov rax, [rsp+200]
+mov [rsp+208], rax
+mov rax, [rax]
+mov [rsp+216], rax
+mov rax, [rsp+216]
+mov [rsp+224], rax
+mov rdi, [rsp+184]
+mov rsi, [rsp+224]
+mov rax, rsp
+add rax, 0
+mov [rsp+232], rax
+call printf
+mov [rsp+240], rax
 mov rax, 10
 mov rbx, 1
 mul rbx
-mov [rsp+136], rax
-mov rax, [rsp+136]
-mov [rsp+144], rax
-mov rdi, [rsp+144]
+mov [rsp+248], rax
+mov rax, [rsp+248]
+mov [rsp+256], rax
+mov rdi, [rsp+256]
 mov rax, rsp
 add rax, 0
-mov [rsp+152], rax
+mov [rsp+264], rax
 call malloc
-mov [rsp+160], rax
-mov rax, [rsp+160]
-mov [rsp+128], rax
+mov [rsp+272], rax
+mov rax, [rsp+272]
+mov [rsp+240], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+168], rax
+add rax, 240
+mov [rsp+280], rax
 mov rax, 0
 mov rbx, 1
 mul rbx
-mov rbx, [rsp+128]
+mov rbx, [rsp+240]
 add rbx, rax
-mov [rsp+176], rbx
+mov [rsp+288], rbx
 mov rax, [rbx]
-mov [rsp+184], rax
-mov rax, [rsp+184]
+mov [rsp+296], rax
+mov rax, [rsp+296]
 mov rbx, 49
 mov rax, 49
-mov rbx, [rsp+176]
+mov rbx, [rsp+288]
 mov [rbx], rax
-mov [rsp+185], rax
+mov [rsp+297], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+186], rax
+add rax, 240
+mov [rsp+298], rax
 mov rax, 1
 mov rbx, 1
 mul rbx
-mov rbx, [rsp+128]
+mov rbx, [rsp+240]
 add rbx, rax
-mov [rsp+194], rbx
+mov [rsp+306], rbx
 mov rax, [rbx]
-mov [rsp+202], rax
-mov rax, [rsp+202]
+mov [rsp+314], rax
+mov rax, [rsp+314]
 mov rbx, 104
 mov rax, 104
-mov rbx, [rsp+194]
+mov rbx, [rsp+306]
 mov [rbx], rax
-mov [rsp+203], rax
+mov [rsp+315], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+204], rax
+add rax, 240
+mov [rsp+316], rax
 mov rax, 2
 mov rbx, 1
 mul rbx
-mov rbx, [rsp+128]
+mov rbx, [rsp+240]
 add rbx, rax
-mov [rsp+212], rbx
+mov [rsp+324], rbx
 mov rax, [rbx]
-mov [rsp+220], rax
-mov rax, [rsp+220]
+mov [rsp+332], rax
+mov rax, [rsp+332]
 mov rbx, 101
 mov rax, 101
-mov rbx, [rsp+212]
+mov rbx, [rsp+324]
 mov [rbx], rax
-mov [rsp+221], rax
+mov [rsp+333], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+222], rax
+add rax, 240
+mov [rsp+334], rax
 mov rax, 3
 mov rbx, 1
 mul rbx
-mov rbx, [rsp+128]
+mov rbx, [rsp+240]
 add rbx, rax
-mov [rsp+230], rbx
+mov [rsp+342], rbx
 mov rax, [rbx]
-mov [rsp+238], rax
-mov rax, [rsp+238]
+mov [rsp+350], rax
+mov rax, [rsp+350]
 mov rbx, 108
 mov rax, 108
-mov rbx, [rsp+230]
+mov rbx, [rsp+342]
 mov [rbx], rax
-mov [rsp+239], rax
+mov [rsp+351], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+240], rax
+add rax, 240
+mov [rsp+352], rax
 mov rax, 4
 mov rbx, 1
 mul rbx
-mov rbx, [rsp+128]
+mov rbx, [rsp+240]
 add rbx, rax
-mov [rsp+248], rbx
+mov [rsp+360], rbx
 mov rax, [rbx]
-mov [rsp+256], rax
-mov rax, [rsp+256]
+mov [rsp+368], rax
+mov rax, [rsp+368]
 mov rbx, 108
 mov rax, 108
-mov rbx, [rsp+248]
+mov rbx, [rsp+360]
 mov [rbx], rax
-mov [rsp+257], rax
+mov [rsp+369], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+258], rax
+add rax, 240
+mov [rsp+370], rax
 mov rax, 5
 mov rbx, 1
 mul rbx
-mov rbx, [rsp+128]
+mov rbx, [rsp+240]
 add rbx, rax
-mov [rsp+266], rbx
+mov [rsp+378], rbx
 mov rax, [rbx]
-mov [rsp+274], rax
-mov rax, [rsp+274]
+mov [rsp+386], rax
+mov rax, [rsp+386]
 mov rbx, 111
 mov rax, 111
-mov rbx, [rsp+266]
+mov rbx, [rsp+378]
 mov [rbx], rax
-mov [rsp+275], rax
+mov [rsp+387], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+276], rax
+add rax, 240
+mov [rsp+388], rax
 mov rax, 6
 mov rbx, 1
 mul rbx
-mov rbx, [rsp+128]
+mov rbx, [rsp+240]
 add rbx, rax
-mov [rsp+284], rbx
+mov [rsp+396], rbx
 mov rax, [rbx]
-mov [rsp+292], rax
-mov rax, [rsp+292]
+mov [rsp+404], rax
+mov rax, [rsp+404]
 mov rbx, 10
 mov rax, 10
-mov rbx, [rsp+284]
+mov rbx, [rsp+396]
 mov [rbx], rax
-mov [rsp+293], rax
+mov [rsp+405], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+294], rax
+add rax, 240
+mov [rsp+406], rax
 mov rax, 7
 mov rbx, 1
 mul rbx
-mov rbx, [rsp+128]
+mov rbx, [rsp+240]
 add rbx, rax
-mov [rsp+302], rbx
+mov [rsp+414], rbx
 mov rax, [rbx]
-mov [rsp+310], rax
-mov rax, [rsp+310]
+mov [rsp+422], rax
+mov rax, [rsp+422]
 mov rbx, 0
 mov rax, 0
-mov rbx, [rsp+302]
+mov rbx, [rsp+414]
 mov [rbx], rax
-mov [rsp+311], rax
-mov rax, __temp_str_4
-mov [rsp+312], rax
+mov [rsp+423], rax
+mov rax, __temp_str_6
+mov [rsp+424], rax
 ; unary op apply
 mov rax, rsp
-add rax, 128
-mov [rsp+320], rax
-; operand code: [rsp+128]
-mov rax, [rsp+128]
+add rax, 240
+mov [rsp+432], rax
+; operand code: [rsp+240]
+mov rax, [rsp+240]
 add rax, 1
-mov rbx, [rsp+320]
+mov rbx, [rsp+432]
 mov [rbx], rax
-mov [rsp+328], rax
+mov [rsp+440], rax
 ; unary op finish
-mov rax, [rsp+328]
-mov [rsp+336], rax
+mov rax, [rsp+440]
+mov [rsp+448], rax
 mov rax, [rax]
-mov [rsp+344], rax
-mov rax, [rsp+344]
-mov [rsp+345], rax
-mov rdi, [rsp+312]
-mov rsi, [rsp+345]
+mov [rsp+456], rax
+mov rax, [rsp+456]
+mov [rsp+457], rax
+mov rdi, [rsp+424]
+mov rsi, [rsp+457]
 mov rax, rsp
 add rax, 0
-mov [rsp+346], rax
+mov [rsp+458], rax
 call printf
-mov [rsp+354], rax
-mov rax, __temp_str_5
-mov [rsp+354], rax
+mov [rsp+466], rax
+mov rax, __temp_str_7
+mov [rsp+466], rax
 mov rax, rsp
-add rax, 128
-mov [rsp+362], rax
-mov rax, [rsp+128]
-mov [rsp+370], rax
-mov rdi, [rsp+354]
-mov rsi, [rsp+370]
+add rax, 240
+mov [rsp+474], rax
+mov rax, [rsp+240]
+mov [rsp+482], rax
+mov rdi, [rsp+466]
+mov rsi, [rsp+482]
 mov rax, rsp
 add rax, 0
-mov [rsp+378], rax
+mov [rsp+490], rax
 call printf
-mov [rsp+386], rax
+mov [rsp+498], rax
 mov rax, 10
 mov rbx, 8
 mul rbx
-mov [rsp+394], rax
-mov rax, [rsp+394]
-mov [rsp+402], rax
-mov rdi, [rsp+402]
+mov [rsp+506], rax
+mov rax, [rsp+506]
+mov [rsp+514], rax
+mov rdi, [rsp+514]
 mov rax, rsp
 add rax, 0
-mov [rsp+410], rax
+mov [rsp+522], rax
 call malloc
-mov [rsp+418], rax
-mov rax, [rsp+418]
-mov [rsp+386], rax
+mov [rsp+530], rax
+mov rax, [rsp+530]
+mov [rsp+498], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+426], rax
-mov rax, [rsp+386]
-mov [rsp+434], rax
+add rax, 498
+mov [rsp+538], rax
+mov rax, [rsp+498]
+mov [rsp+546], rax
 mov rax, [rax]
-mov [rsp+442], rax
+mov [rsp+554], rax
 mov rax, 10
 mov rbx, 8
 mul rbx
-mov [rsp+450], rax
-mov rax, [rsp+450]
-mov [rsp+458], rax
-mov rdi, [rsp+458]
+mov [rsp+562], rax
+mov rax, [rsp+562]
+mov [rsp+570], rax
+mov rdi, [rsp+570]
 mov rax, rsp
 add rax, 0
-mov [rsp+466], rax
+mov [rsp+578], rax
 call malloc
-mov [rsp+474], rax
-mov rax, [rsp+442]
-mov rbx, [rsp+474]
-mov rax, [rsp+474]
-mov rbx, [rsp+434]
+mov [rsp+586], rax
+mov rax, [rsp+554]
+mov rbx, [rsp+586]
+mov rax, [rsp+586]
+mov rbx, [rsp+546]
 mov [rbx], rax
-mov [rsp+482], rax
+mov [rsp+594], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+490], rax
+add rax, 498
+mov [rsp+602], rax
 mov rax, 1
 mov rbx, 8
 mul rbx
 mov rbx, rax
-mov rax, [rsp+386]
-add rax, rbx
-mov [rsp+498], rax
 mov rax, [rsp+498]
-mov [rsp+506], rax
+add rax, rbx
+mov [rsp+610], rax
+mov rax, [rsp+610]
+mov [rsp+618], rax
 mov rax, [rax]
-mov [rsp+514], rax
+mov [rsp+626], rax
 mov rax, 10
 mov rbx, 8
 mul rbx
-mov [rsp+522], rax
-mov rax, [rsp+522]
-mov [rsp+530], rax
-mov rdi, [rsp+530]
+mov [rsp+634], rax
+mov rax, [rsp+634]
+mov [rsp+642], rax
+mov rdi, [rsp+642]
 mov rax, rsp
 add rax, 0
-mov [rsp+538], rax
+mov [rsp+650], rax
 call malloc
-mov [rsp+546], rax
-mov rax, [rsp+514]
-mov rbx, [rsp+546]
-mov rax, [rsp+546]
-mov rbx, [rsp+506]
+mov [rsp+658], rax
+mov rax, [rsp+626]
+mov rbx, [rsp+658]
+mov rax, [rsp+658]
+mov rbx, [rsp+618]
 mov [rbx], rax
-mov [rsp+554], rax
+mov [rsp+666], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+562], rax
+add rax, 498
+mov [rsp+674], rax
 mov rax, 2
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+386]
+mov rbx, [rsp+498]
 add rbx, rax
-mov [rsp+570], rbx
+mov [rsp+682], rbx
 mov rax, [rbx]
-mov [rsp+578], rax
+mov [rsp+690], rax
 mov rax, 10
 mov rbx, 8
 mul rbx
-mov [rsp+586], rax
-mov rax, [rsp+586]
-mov [rsp+594], rax
-mov rdi, [rsp+594]
+mov [rsp+698], rax
+mov rax, [rsp+698]
+mov [rsp+706], rax
+mov rdi, [rsp+706]
 mov rax, rsp
 add rax, 0
-mov [rsp+602], rax
+mov [rsp+714], rax
 call malloc
-mov [rsp+610], rax
-mov rax, [rsp+578]
-mov rbx, [rsp+610]
-mov rax, [rsp+610]
-mov rbx, [rsp+570]
+mov [rsp+722], rax
+mov rax, [rsp+690]
+mov rbx, [rsp+722]
+mov rax, [rsp+722]
+mov rbx, [rsp+682]
 mov [rbx], rax
-mov [rsp+618], rax
+mov [rsp+730], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+626], rax
+add rax, 498
+mov [rsp+738], rax
 mov rax, 0
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+386]
+mov rbx, [rsp+498]
 add rbx, rax
-mov [rsp+634], rbx
+mov [rsp+746], rbx
 mov rax, [rbx]
-mov [rsp+642], rax
+mov [rsp+754], rax
 mov rax, 0
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+642]
+mov rbx, [rsp+754]
 add rbx, rax
-mov [rsp+650], rbx
+mov [rsp+762], rbx
 mov rax, [rbx]
-mov [rsp+658], rax
-mov rax, [rsp+658]
+mov [rsp+770], rax
+mov rax, [rsp+770]
 mov rbx, 69
 mov rax, 69
-mov rbx, [rsp+650]
+mov rbx, [rsp+762]
 mov [rbx], rax
-mov [rsp+666], rax
+mov [rsp+778], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+674], rax
+add rax, 498
+mov [rsp+786], rax
 mov rax, 1
 mov rbx, 8
 mul rbx
 mov rbx, rax
-mov rax, [rsp+386]
+mov rax, [rsp+498]
 add rax, rbx
-mov [rsp+682], rax
+mov [rsp+794], rax
 mov rax, 0
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+682]
+mov rbx, [rsp+794]
 add rbx, rax
-mov [rsp+690], rbx
+mov [rsp+802], rbx
 mov rax, [rbx]
-mov [rsp+698], rax
-mov rax, [rsp+698]
-mov [rsp+706], rax
+mov [rsp+810], rax
+mov rax, [rsp+810]
+mov [rsp+818], rax
 mov rax, [rax]
-mov [rsp+714], rax
-mov rax, [rsp+714]
+mov [rsp+826], rax
+mov rax, [rsp+826]
 mov rbx, 99
 mov rax, 99
-mov rbx, [rsp+706]
+mov rbx, [rsp+818]
 mov [rbx], rax
-mov [rsp+722], rax
+mov [rsp+834], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+730], rax
+add rax, 498
+mov [rsp+842], rax
 mov rax, 1
 mov rbx, 8
 mul rbx
 mov rbx, rax
-mov rax, [rsp+386]
+mov rax, [rsp+498]
 add rax, rbx
-mov [rsp+738], rax
-mov rax, [rsp+738]
-mov [rsp+746], rax
+mov [rsp+850], rax
+mov rax, [rsp+850]
+mov [rsp+858], rax
 mov rax, [rax]
-mov [rsp+754], rax
+mov [rsp+866], rax
 mov rax, 1
 mov rbx, 8
 mul rbx
 mov rbx, rax
-mov rax, [rsp+754]
+mov rax, [rsp+866]
 add rax, rbx
-mov [rsp+762], rax
-mov rax, [rsp+762]
-mov [rsp+770], rax
+mov [rsp+874], rax
+mov rax, [rsp+874]
+mov [rsp+882], rax
 mov rax, [rax]
-mov [rsp+778], rax
-mov rax, [rsp+778]
+mov [rsp+890], rax
+mov rax, [rsp+890]
 mov rbx, 109
 mov rax, 109
-mov rbx, [rsp+770]
+mov rbx, [rsp+882]
 mov [rbx], rax
-mov [rsp+786], rax
-mov rax, __temp_str_6
-mov [rsp+794], rax
+mov [rsp+898], rax
+mov rax, __temp_str_8
+mov [rsp+906], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+802], rax
+add rax, 498
+mov [rsp+914], rax
 mov rax, 0
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+386]
+mov rbx, [rsp+498]
 add rbx, rax
-mov [rsp+810], rbx
+mov [rsp+922], rbx
 mov rax, [rbx]
-mov [rsp+818], rax
+mov [rsp+930], rax
 mov rax, 0
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+818]
+mov rbx, [rsp+930]
 add rbx, rax
-mov [rsp+826], rbx
+mov [rsp+938], rbx
 mov rax, [rbx]
-mov [rsp+834], rax
-mov rax, [rsp+834]
-mov [rsp+842], rax
-mov rdi, [rsp+794]
-mov rsi, [rsp+842]
+mov [rsp+946], rax
+mov rax, [rsp+946]
+mov [rsp+954], rax
+mov rdi, [rsp+906]
+mov rsi, [rsp+954]
 mov rax, rsp
 add rax, 0
-mov [rsp+850], rax
+mov [rsp+962], rax
 call printf
-mov [rsp+858], rax
-mov rax, __temp_str_7
-mov [rsp+858], rax
+mov [rsp+970], rax
+mov rax, __temp_str_9
+mov [rsp+970], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+866], rax
+add rax, 498
+mov [rsp+978], rax
 mov rax, 1
 mov rbx, 8
 mul rbx
 mov rbx, rax
-mov rax, [rsp+386]
+mov rax, [rsp+498]
 add rax, rbx
-mov [rsp+874], rax
+mov [rsp+986], rax
 mov rax, 0
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+874]
+mov rbx, [rsp+986]
 add rbx, rax
-mov [rsp+882], rbx
+mov [rsp+994], rbx
 mov rax, [rbx]
-mov [rsp+890], rax
-mov rax, [rsp+890]
-mov [rsp+898], rax
+mov [rsp+1002], rax
+mov rax, [rsp+1002]
+mov [rsp+1010], rax
 mov rax, [rax]
-mov [rsp+906], rax
-mov rax, [rsp+906]
-mov [rsp+914], rax
-mov rdi, [rsp+858]
-mov rsi, [rsp+914]
+mov [rsp+1018], rax
+mov rax, [rsp+1018]
+mov [rsp+1026], rax
+mov rdi, [rsp+970]
+mov rsi, [rsp+1026]
 mov rax, rsp
 add rax, 0
-mov [rsp+922], rax
+mov [rsp+1034], rax
 call printf
-mov [rsp+930], rax
-mov rax, __temp_str_8
-mov [rsp+930], rax
+mov [rsp+1042], rax
+mov rax, __temp_str_10
+mov [rsp+1042], rax
 mov rax, rsp
-add rax, 386
-mov [rsp+938], rax
+add rax, 498
+mov [rsp+1050], rax
 mov rax, 1
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+386]
+mov rbx, [rsp+498]
 add rbx, rax
-mov [rsp+946], rbx
+mov [rsp+1058], rbx
 mov rax, [rbx]
-mov [rsp+954], rax
+mov [rsp+1066], rax
 mov rax, 1
 mov rbx, 8
 mul rbx
-mov rbx, [rsp+954]
+mov rbx, [rsp+1066]
 add rbx, rax
-mov [rsp+962], rbx
+mov [rsp+1074], rbx
 mov rax, [rbx]
-mov [rsp+970], rax
-mov rax, [rsp+970]
-mov [rsp+978], rax
-mov rdi, [rsp+930]
-mov rsi, [rsp+978]
+mov [rsp+1082], rax
+mov rax, [rsp+1082]
+mov [rsp+1090], rax
+mov rdi, [rsp+1042]
+mov rsi, [rsp+1090]
 mov rax, rsp
 add rax, 0
-mov [rsp+986], rax
+mov [rsp+1098], rax
 call printf
-mov [rsp+994], rax
+mov [rsp+1106], rax
 mov rsp, rbp
 pop rbp
 ret
diff --git a/tests/output/inp_pointer.c_lex_output.txt b/tests/output/inp_pointer.c_lex_output.txt
index 81faee850eb3e822aec0a7d277dbbe3ed1da29f4..0c4eeb3e97fca7edbb896796b32233f2f2a82a9c 100644
GIT binary patch
delta 63
zcmeySa7Sswbe75DEGo>px`~qom}S{~J^g@avJbQL<a>OEELvE_`8H2yxz7y%PN))U

delta 12
Tcmcbk^i5&Ibe7GvtoOMACz1t!

diff --git a/tests/output/inp_pointer.c_tree_output.txt b/tests/output/inp_pointer.c_tree_output.txt
index 911636f..e9f23f4 100644
--- a/tests/output/inp_pointer.c_tree_output.txt
+++ b/tests/output/inp_pointer.c_tree_output.txt
@@ -126,6 +126,26 @@ Program(
                   Postfix(Op: 73)
                   expression:
                       Variable(a)
+      FunctionCall:
+        Function:
+          Variable(printf)
+        Args:
+          Literal(Type: 33, Value: *--a %d
+)
+          Deref:
+            unaryOp(Op: 76)
+            expression:
+                Variable(a)
+      FunctionCall:
+        Function:
+          Variable(printf)
+        Args:
+          Literal(Type: 33, Value: *--a %d
+)
+          Deref:
+            unaryOp(Op: 76)
+            expression:
+                Variable(a)
       VarDecl(s):
         Type(Name: s):
           Pointer of: