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builtins.c (fold_fixed_mathfn): When long and long long are the same size...

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* builtins.c (fold_fixed_mathfn): When long and long long are the
	same size, canonicalize llceil*, llfloor*, llround* and llrint*
	functions to their lceil*, lfloor*, lround* and lrint* forms.

	* gcc.dg/builtins-55.c: New test case.

From-SVN: r115775
This commit is contained in:
Roger Sayle 2006-07-27 14:02:27 +00:00 committed by Roger Sayle
parent 721cedf251
commit 482c6ce885
4 changed files with 121 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2006-07-27 Roger Sayle <roger@eyesopen.com>
* builtins.c (fold_fixed_mathfn): When long and long long are the
same size, canonicalize llceil*, llfloor*, llround* and llrint*
functions to their lceil*, lfloor*, lround* and lrint* forms.
2006-07-27 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
PR gcc/28508

36
gcc/builtins.c
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@ -6772,6 +6772,42 @@ fold_fixed_mathfn (tree fndecl, tree arglist)
return build_function_call_expr (decl, arglist);
}
}
/* Canonicalize llround (x) to lround (x) on LP64 targets where
sizeof (long long) == sizeof (long). */
if (TYPE_PRECISION (long_long_integer_type_node)
== TYPE_PRECISION (long_integer_type_node))
{
tree newfn = NULL_TREE;
switch (fcode)
{
CASE_FLT_FN (BUILT_IN_LLCEIL):
newfn = mathfn_built_in (TREE_TYPE (arg), BUILT_IN_LCEIL);
break;
CASE_FLT_FN (BUILT_IN_LLFLOOR):
newfn = mathfn_built_in (TREE_TYPE (arg), BUILT_IN_LFLOOR);
break;
CASE_FLT_FN (BUILT_IN_LLROUND):
newfn = mathfn_built_in (TREE_TYPE (arg), BUILT_IN_LROUND);
break;
CASE_FLT_FN (BUILT_IN_LLRINT):
newfn = mathfn_built_in (TREE_TYPE (arg), BUILT_IN_LRINT);
break;
default:
break;
}
if (newfn)
{
tree newcall = build_function_call_expr (newfn, arglist);
return fold_convert (TREE_TYPE (TREE_TYPE (fndecl)), newcall);
}
}
return 0;
}

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2006-07-27 Roger Sayle <roger@eyesopen.com>
* gcc.dg/builtins-55.c: New test case.
2006-07-26 Zdenek Dvorak <dvorakz@suse.cz>
PR rtl-optimization/27907

75
gcc/testsuite/gcc.dg/builtins-55.c Normal file
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@ -0,0 +1,75 @@
/* { dg-do link } */
/* { dg-options "-O2 -ffast-math" } */
/* { dg-options "-ffast-math -mmacosx-version-min=10.3" { target powerpc-*-darwin* } } */
/* { dg-options "-O2 -ffast-math -std=c99" { target *-*-solaris2* } } */
#include "builtins-config.h"
void link_error (void);
extern long lround(double);
extern long lrint(double);
extern long long llround(double);
extern long long llrint(double);
extern long lroundf(float);
extern long lrintf(float);
extern long long llroundf(float);
extern long long llrintf(float);
extern long lroundl(long double);
extern long lrintl(long double);
extern long long llroundl(long double);
extern long long llrintl(long double);
void test(double x)
{
#ifdef HAVE_C99_RUNTIME
if (sizeof(long) != sizeof(long long))
return;
if (lround(x) != llround(x))
link_error();
if (lrint(x) != llrint(x))
link_error();
#endif
}
void testf(float x)
{
#ifdef HAVE_C99_RUNTIME
if (sizeof(long) != sizeof(long long))
return;
if (lroundf(x) != llroundf(x))
link_error();
if (lrintf(x) != llrintf(x))
link_error();
#endif
}
void testl(long double x)
{
#ifdef HAVE_C99_RUNTIME
if (sizeof(long) != sizeof(long long))
return;
if (lroundl(x) != llroundl(x))
link_error();
if (lrintl(x) != llrintl(x))
link_error();
#endif
}
int main()
{
test(0.0);
testf(0.0);
testl(0.0);
return 0;
}