ref: a4fa945f60bc687372451bf44e75d4d11f9486b2
parent: 48fa7fb8560c55dda4fdb5446568a359aad6b892
author: Roberto E. Vargas Caballero <[email protected]>
date: Thu Apr 14 04:01:55 EDT 2016
Revert "[cc2] Remove sigil function from qbe" This reverts commit 669131252b1f35c13e32a47e22e84026ac69d1a8.
--- a/cc2/arch/qbe/code.c
+++ b/cc2/arch/qbe/code.c
@@ -6,11 +6,35 @@
#include "../../cc2.h"
#include "../../../inc/sizes.h"
+/*
+ * : is for user-defined Aggregate Types
+ * $ is for globals (represented by a pointer)
+ * % is for function-scope temporaries
+ * @ is for block labels
+ */
+static char
+sigil(Symbol *sym)
+{+ switch (sym->kind) {+ case EXTRN:
+ case GLOB:
+ case PRIVAT:
+ case LOCAL:
+ return '$';
+ case AUTO:
+ case REG:
+ return '%';
+ default:
+ abort();
+ }
+}
+
static char *
symname(Symbol *sym)
{- static char name[IDENTSIZ+1];
+ static char name[IDENTSIZ+2];
static unsigned short id;
+ char c = sigil(sym);
if (sym->name) { switch (sym->kind) {@@ -17,6 +41,7 @@
case EXTRN:
case GLOB:
case PRIVAT:
+ sprintf(name, "%c%s", c, sym->name);
return sym->name;
}
}
@@ -23,7 +48,7 @@
if (sym->numid == 0 && (sym->numid = ++id) == 0)
error(EIDOVER);
- sprintf(name, ".L%d", sym->numid);
+ sprintf(name, "%c.%d", c, sym->numid);
return name;
}
@@ -115,7 +140,7 @@
return;
if (sym->kind == GLOB)
fputs("export ", stdout);- printf("data $%s = {\n", symname(sym));+ printf("data %s = {\n", symname(sym));if (sym->type.flags & INITF)
return;
printf("\tz\t%llu\n}\n", (unsigned long long) sym->type.size);@@ -146,7 +171,7 @@
{if (curfun->kind == GLOB)
fputs("export ", stdout);- printf("function $%s(", symname(curfun));+ printf("function %s(", symname(curfun)); puts("){"); puts("}");}