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re PR bootstrap/18058 (Bootstrap fails with non-GCC compilers)

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PR bootstrap/18058
	* genconditions.c (write_header, write_conditions): Elide file if
	not GCC >= 3.0.1.

From-SVN: r94155
This commit is contained in:
Joseph Myers 2005-01-24 12:08:06 +00:00 committed by Joseph Myers
parent deeec1d8a8
commit 2429f3d4c0
2 changed files with 15 additions and 10 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-01-24 Joseph S. Myers <joseph@codesourcery.com>
PR bootstrap/18058
* genconditions.c (write_header, write_conditions): Elide file if
not GCC >= 3.0.1.
2005-01-24 Kazu Hirata <kazu@cs.umass.edu>
* c-opts.c, expmed.c, gengtype.c, tree-complex.c,

19
gcc/genconditions.c
View File

@ -1,5 +1,5 @@
/* Process machine description and calculate constant conditions.
Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GCC.
@ -86,6 +86,9 @@ write_header (void)
puts ("\
#include \"system.h\"\n\
#if GCC_VERSION < 3001\n\
#include \"dummy-conditions.c\"\n\
#else\n\
#include \"coretypes.h\"\n\
#include \"tm.h\"\n\
#include \"rtl.h\"\n\
@ -122,14 +125,10 @@ extern rtx operands[];\n");
puts ("\
/* If we don't have __builtin_constant_p, or it's not acceptable in\n\
array initializers, fall back to assuming that all conditions\n\
potentially vary at run time. It works in 3.0.1 and later; 3.0\n\
only when not optimizing. */\n\
#if (GCC_VERSION >= 3001) || ((GCC_VERSION == 3000) && !__OPTIMIZE__)\n\
# define MAYBE_EVAL(expr) (__builtin_constant_p(expr) ? (int) (expr) : -1)\n\
#else\n\
# define MAYBE_EVAL(expr) -1\n\
#endif\n");
array initializers, fall back (by using dummy-conditions.c above)\n\
to assuming that all conditions potentially vary at run time. It\n\
works in 3.0.1 and later; 3.0 only when not optimizing. */\n\
#define MAYBE_EVAL(expr) (__builtin_constant_p(expr) ? (int) (expr) : -1)\n");
}
/* Write out one entry in the conditions table, using the data pointed
@ -176,7 +175,7 @@ const struct c_test insn_conditions[] = {");
printf ("const size_t n_insn_conditions = %lu;\n",
(unsigned long) htab_elements (condition_table));
puts ("const int insn_elision_unavailable = 0;");
puts ("const int insn_elision_unavailable = 0;\n#endif");
}
int