OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

builtins.c (fold_builtin_isdigit): New.

Browse Source 
* builtins.c (fold_builtin_isdigit): New.
	(fold_builtin): Handle BUILT_IN_ISDIGIT.
	* defaults.h: Add TARGET_DIGIT0 and sort.
	* doc/tm.texi: Add TARGET_BS and TARGET_DIGIT0.

testsuite:
	* gcc.dg/torture/builtin-ctype-2.c: Test builtin isdigit.

From-SVN: r80681
This commit is contained in:
Kaveh R. Ghazi 2004-04-14 14:32:55 +00:00 committed by Kaveh Ghazi
parent a69934e07e
commit 61218d193a
6 changed files with 73 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2004-04-14 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* builtins.c (fold_builtin_isdigit): New.
(fold_builtin): Handle BUILT_IN_ISDIGIT.
* defaults.h: Add TARGET_DIGIT0 and sort.
* doc/tm.texi: Add TARGET_BS and TARGET_DIGIT0.
2004-04-14 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* builtins.c (fold_builtin_cabs, fold_builtin): Use

25
gcc/builtins.c
View File

@ -6767,6 +6767,28 @@ fold_builtin_toascii (tree arglist)
}
}
/* Fold a call to builtin isdigit. */
static tree
fold_builtin_isdigit (tree arglist)
{
if (! validate_arglist (arglist, INTEGER_TYPE, VOID_TYPE))
return 0;
else
{
/* Transform isdigit(c) -> (unsigned)(c) - '0' <= 9. */
/* According to the C standard, isdigit is unaffected by locale. */
tree arg = TREE_VALUE (arglist);
arg = build1 (NOP_EXPR, unsigned_type_node, arg);
arg = build (MINUS_EXPR, unsigned_type_node, arg,
fold (build1 (NOP_EXPR, unsigned_type_node,
build_int_2 (TARGET_DIGIT0, 0))));
arg = build (LE_EXPR, integer_type_node, arg,
fold (build1 (NOP_EXPR, unsigned_type_node,
build_int_2 (9, 0))));
return fold (arg);
}
}
/* Used by constant folding to eliminate some builtin calls early. EXP is
the CALL_EXPR of a call to a builtin function. */
@ -7257,6 +7279,9 @@ fold_builtin (tree exp)
case BUILT_IN_TOASCII:
return fold_builtin_toascii (arglist);
case BUILT_IN_ISDIGIT:
return fold_builtin_isdigit (arglist);
default:
break;
}

9
gcc/defaults.h
View File

@ -39,12 +39,13 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#ifndef TARGET_BELL
# define TARGET_BELL 007
# define TARGET_BS 010
# define TARGET_TAB 011
# define TARGET_NEWLINE 012
# define TARGET_VT 013
# define TARGET_FF 014
# define TARGET_CR 015
# define TARGET_DIGIT0 060
# define TARGET_ESC 033
# define TARGET_FF 014
# define TARGET_NEWLINE 012
# define TARGET_TAB 011
# define TARGET_VT 013
#endif
/* Store in OUTPUT a string (made with alloca) containing an

13
gcc/doc/tm.texi
View File

@ -1787,13 +1787,16 @@ of words in each data entry.
@section Target Character Escape Sequences
@cindex escape sequences
By default, GCC assumes that the C character escape sequences take on
their ASCII values for the target. If this is not correct, you must
explicitly define all of the macros below. All of them must evaluate
to constants; they are used in @code{case} statements.
By default, GCC assumes that the C character escape sequences and other
characters take on their ASCII values for the target. If this is not
correct, you must explicitly define all of the macros below. All of
them must evaluate to constants; they are used in @code{case}
statements.
@findex TARGET_BELL
@findex TARGET_BS
@findex TARGET_CR
@findex TARGET_DIGIT0
@findex TARGET_ESC
@findex TARGET_FF
@findex TARGET_NEWLINE
@ -1802,7 +1805,9 @@ to constants; they are used in @code{case} statements.
@multitable {@code{TARGET_NEWLINE}} {Escape} {ASCII character}
@item Macro @tab Escape @tab ASCII character
@item @code{TARGET_BELL} @tab @kbd{\a} @tab @code{07}, @code{BEL}
@item @code{TARGET_BS} @tab @kbd{\b} @tab @code{08}, @code{BS}
@item @code{TARGET_CR} @tab @kbd{\r} @tab @code{0D}, @code{CR}
@item @code{TARGET_DIGIT0} @tab @kbd{0} @tab @code{30}, @code{ZERO}
@item @code{TARGET_ESC} @tab @kbd{\e}, @kbd{\E} @tab @code{1B}, @code{ESC}
@item @code{TARGET_FF} @tab @kbd{\f} @tab @code{0C}, @code{FF}
@item @code{TARGET_NEWLINE} @tab @kbd{\n} @tab @code{0A}, @code{LF}

4
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,7 @@
2004-04-14 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.dg/torture/builtin-ctype-2.c: Test builtin isdigit.
2004-04-13 Uros Bizjak <uros@kss-loka.si>:
* gcc.dg/i386-387-1.c: Add new test for __builtin_tan.

23
gcc/testsuite/gcc.dg/torture/builtin-ctype-2.c
View File

@ -75,6 +75,29 @@ void test(int i)
if (toascii(i) != (i & 0x7f))
link_failure_var();
TEST_CTYPE_CST_TRUE (isdigit, '0');
TEST_CTYPE_CST_TRUE (isdigit, '1');
TEST_CTYPE_CST_TRUE (isdigit, '2');
TEST_CTYPE_CST_TRUE (isdigit, '3');
TEST_CTYPE_CST_TRUE (isdigit, '4');
TEST_CTYPE_CST_TRUE (isdigit, '5');
TEST_CTYPE_CST_TRUE (isdigit, '6');
TEST_CTYPE_CST_TRUE (isdigit, '7');
TEST_CTYPE_CST_TRUE (isdigit, '8');
TEST_CTYPE_CST_TRUE (isdigit, '9');
TEST_CTYPE_CST_FALSE (isdigit, '0'-1);
TEST_CTYPE_CST_FALSE (isdigit, '9'+1);
TEST_CTYPE_CST_FALSE (isdigit, -1);
TEST_CTYPE_CST_FALSE (isdigit, 0);
TEST_CTYPE_CST_FALSE (isdigit, 255);
TEST_CTYPE_CST_FALSE (isdigit, 256);
TEST_CTYPE_CST_FALSE (isdigit, 10000);
TEST_CTYPE_CST_FALSE (isdigit, __INT_MAX__);
/* This ctype call should transform into another expression. */
if (isdigit(i) != ((unsigned)i - '0' <= 9))
link_failure_var();
#endif /* __OPTIMIZE__ */
}