Comment and indent code generated by register.c

1 files changed, 14 insertions, 6 deletions

diff --git a/src/register.c b/src/register.c
index 43eb00f..0cf8a18 100644
--- a/src/register.c
+++ b/src/register.c
@@ -51,7 +51,10 @@ CcmmcTmp *ccmmc_register_alloc(CcmmcRegPool *pool, uint64_t *offset)
     }
     else {
         // gen code to alloc space on the stack
-        fprintf(pool->asm_output, "\tsub\tsp, sp, #%d\n", REG_SIZE);
+        fprintf(pool->asm_output,
+            "\t\t/* ccmmc_register_alloc(): */\n"
+            "\t\tsub\tsp, sp, #%d\n",
+            REG_SIZE);
 
         // tmp and offset
         *offset += REG_SIZE;
@@ -88,11 +91,15 @@ const char *ccmmc_register_lock(CcmmcRegPool *pool, CcmmcTmp *tmp)
             assert(i < pool->num); //must found
 
             // gen code to swap the tmp in the register and the tmp on the stack
-            fprintf(pool->asm_output, "\tmov\t%s, %s\n", REG_RESERVED,
+            fprintf(pool->asm_output,
+                "\t\t/* ccmmc_register_lock(): swap %s, [fp, #-%" PRIu64 "] */\n",
+                pool->list[i]->name,
+                tmp->addr);
+            fprintf(pool->asm_output, "\t\tmov\t%s, %s\n", REG_RESERVED,
                 pool->list[i]->name);
-            fprintf(pool->asm_output, "\tldr\t%s, [fp, #-%" PRIu64 "]\n",
+            fprintf(pool->asm_output, "\t\tldr\t%s, [fp, #-%" PRIu64 "]\n",
                 pool->list[i]->name, tmp->addr);
-            fprintf(pool->asm_output, "\tstr\t%s, [fp, #-%" PRIu64 "]\n",
+            fprintf(pool->asm_output, "\t\tstr\t%s, [fp, #-%" PRIu64 "]\n",
                 REG_RESERVED, tmp->addr);
 
             // find the index of tmp in pool->spill
@@ -158,9 +165,10 @@ void ccmmc_register_free(CcmmcRegPool *pool, CcmmcTmp *tmp, uint64_t *offset)
             pool->top--;
 
             // gen code to move the last tmp to this register
-            fprintf(pool->asm_output, "\tldr\t%s, [fp, #-%" PRIu64 "]\n",
+            fprintf(pool->asm_output, "\t\t/* ccmmc_register_free(): */\n");
+            fprintf(pool->asm_output, "\t\tldr\t%s, [fp, #-%" PRIu64 "]\n",
                 tmp->reg->name, pool->spill[pool->top - pool->num]->addr);
-            fprintf(pool->asm_output, "\tadd\tsp, sp, #%d\n", REG_SIZE);
+            fprintf(pool->asm_output, "\t\tadd\tsp, sp, #%d\n", REG_SIZE);
 
             // offset
             *offset -= REG_SIZE;