BugFix:

[libfirm] / ir / tv / strcalc.c

diff --git a/ir/tv/strcalc.c b/ir/tv/strcalc.c
index d682979..dd2e6a3 100644 (file)
--- a/ir/tv/strcalc.c
+++ b/ir/tv/strcalc.c
@@ -32,6 +32,7 @@
 #include <limits.h>   /* definition of LONG_MIN, used in sc_get_val_from_long */
 
 #include "strcalc.h"
+#include "xmalloc.h"
 
 /*
  * local definitions and macros
@@ -76,7 +77,7 @@ static int carry_flag;              /**< some computation set the carry_flag:
                                          However, the meaning of carry is machine dependent
                                          and often defined in other ways! */
 
-static const char sex_digit[4] = { SC_F, SC_E, SC_C, SC_8 };
+static const char sex_digit[4] = { SC_E, SC_C, SC_8, SC_0 };
 static const char max_digit[4] = { SC_0, SC_1, SC_3, SC_7 };
 static const char min_digit[4] = { SC_F, SC_E, SC_C, SC_8 };
 
@@ -962,7 +963,7 @@ int sc_get_buffer_length(void)
  * Do sign extension if the mode is signed, expects all upper bits
  * cleared.
  */
-static void sign_extend(char *calc_buffer, ir_mode *mode) {
+void sign_extend(char *calc_buffer, ir_mode *mode) {
   if (mode_is_signed(mode)) {
     int bits    = get_mode_size_bits(mode) - 1;
     int ofs     = bits >> 2;
@@ -974,7 +975,7 @@ static void sign_extend(char *calc_buffer, ir_mode *mode) {
 
       for (i = ofs + 1; i < calc_buffer_size; ++i)
         calc_buffer[i] = SC_F;
-      calc_buffer[ofs] = sex_digit[bits & 3];
+      calc_buffer[ofs] = or_table[calc_buffer[ofs]][sex_digit[bits & 3]];
     }
   }
 }
@@ -1600,13 +1601,8 @@ void init_strcalc(int precision)
     calc_buffer_size = (precision / 2);
     max_value_size   = (precision / 4);
 
-    calc_buffer   = malloc(calc_buffer_size+1 * sizeof(char));
-    output_buffer = malloc(bit_pattern_size+1 * sizeof(char));
-
-    if (calc_buffer == NULL || output_buffer == NULL) {
-      assert(0 && "malloc failed");
-      exit(-1);
-    }
+    calc_buffer   = xmalloc(calc_buffer_size+1 * sizeof(char));
+    output_buffer = xmalloc(bit_pattern_size+1 * sizeof(char));
 
     DEBUGPRINTF(("init strcalc: \n\tPRECISION: %d\n\tCALC_BUFFER_SIZE = %d\n\tMAX_VALUE_SIZE = %d\n\tbuffer pointer: %p\n", precision, calc_buffer_size, max_value_size, calc_buffer));
   }