add missing dbg hooks for boolean simplifications

[libfirm] / include / libfirm / adt / bitset_ia32.h

diff --git a/include/libfirm/adt/bitset_ia32.h b/include/libfirm/adt/bitset_ia32.h
index 13c767e..529057d 100644 (file)
--- a/include/libfirm/adt/bitset_ia32.h
+++ b/include/libfirm/adt/bitset_ia32.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -51,9 +51,9 @@
 static INLINE int _bitset_ia32_inside_is_set(bitset_unit_t *unit, unsigned bit)
 {
        int res;
-       __asm__("btl   %2, %1\n\t"
-                       "mov   $0, %0\n\t"
-                       "adc   $0, %0"
+       __asm__("bt    %2, %1\n\t"
+                       "rcl   $1, %0\n\t"
+                       "and   $1, %0"
                        : "=r" (res)
                        : "m" (*unit), "Ir" (bit)
                        : "cc");
@@ -62,36 +62,33 @@ static INLINE int _bitset_ia32_inside_is_set(bitset_unit_t *unit, unsigned bit)
 
 static INLINE unsigned _bitset_ia32_inside_nlz(bitset_unit_t *unit)
 {
-       unsigned res, tmp;
-       __asm__("bsrl   %1, %0\n\t"
-                       "mov    $ffffffff, %2\n\t"
+       unsigned res;
+       __asm__("bsr    %1, %0\n\t"
                        "cmovz  %2, %0\n\t"
                        "neg    %0\n\t"
                        "add   $31, %0"
                        : "=&r" (res)
-                       : "m" (*unit), "r" (tmp)
+                       : "m" (*unit), "r" (-1)
                        : "cc");
        return res;
 }
 
 static INLINE unsigned _bitset_ia32_inside_ntz(bitset_unit_t *unit) {
-       unsigned res, tmp;
-       __asm__("bsf l  %1, %0\n\t"
-                       "mov   $32, %2\n\t"
+       unsigned res;
+       __asm__("bsfl   %1, %0\n\t"
                        "cmovz  %2, %0\n\t"
                        : "=&r" (res)
-                       : "m" (*unit), "r" (tmp)
+                       : "m" (*unit), "r" (32)
                        : "cc");
        return res;
 }
 
 static INLINE unsigned _bitset_ia32_inside_ntz_value(bitset_unit_t unit) {
-       unsigned res, tmp;
+       unsigned res;
        __asm__("bsfl   %1, %0\n\t"
-                       "mov   $32, %2\n\t"
                        "cmovz  %2, %0\n\t"
                        : "=&r" (res)
-                       : "r" (unit), "r" (tmp)
+                       : "r" (unit), "r" (32)
                        : "cc");
        return res;
 }