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convert.c (convert_to_integer): Fix nearbyint/rint -> *lrint conversion. 

* convert.c (convert_to_integer): Fix nearbyint/rint -> *lrint
	conversion.

testsuite:
	* gcc.dg/torture/builtin-convert-4.c: New test.

From-SVN: r122581
This commit is contained in:
Kaveh R. Ghazi 2007-03-05 23:30:04 +00:00 committed by Kaveh Ghazi
parent 6f36e61dda
commit 65bda21f7f
4 changed files with 49 additions and 3 deletions
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5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2007-03-05 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* convert.c (convert_to_integer): Fix nearbyint/rint -> *lrint
conversion.
2007-03-05 Ian Lance Taylor <iant@google.com>
* c.opt (fgnu89-inline): New option.

6
gcc/convert.c
View File

@ -413,12 +413,12 @@ convert_to_integer (tree type, tree expr)
fn = mathfn_built_in (s_intype, BUILT_IN_LLROUND);
break;
CASE_FLT_FN (BUILT_IN_RINT):
/* Only convert rint* if we can ignore math exceptions. */
CASE_FLT_FN (BUILT_IN_NEARBYINT):
/* Only convert nearbyint* if we can ignore math exceptions. */
if (flag_trapping_math)
break;
/* ... Fall through ... */
CASE_FLT_FN (BUILT_IN_NEARBYINT):
CASE_FLT_FN (BUILT_IN_RINT):
if (outprec < TYPE_PRECISION (long_integer_type_node)
|| (outprec == TYPE_PRECISION (long_integer_type_node)
&& !TYPE_UNSIGNED (type)))

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2007-03-05 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.dg/torture/builtin-convert-4.c: New test.
2007-03-05 Ian Lance Taylor <iant@google.com>
* gcc.c-torture/compile/pr31034.c: New test.

37
gcc/testsuite/gcc.dg/torture/builtin-convert-4.c Normal file
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@ -0,0 +1,37 @@
/* Copyright (C) 2007 Free Software Foundation.
Verify that nearbyint isn't transformed into e.g. rint or lrint
when -ftrapping-math is set.
Written by Kaveh ghazi, 2007-03-04. */
/* { dg-do compile } */
/* { dg-options "-ftrapping-math -fdump-tree-original" } */
/* { dg-options "-ftrapping-math -fdump-tree-original -mmacosx-version-min=10.3" { target powerpc-*-darwin* } } */
/* { dg-options "-ftrapping-math -fdump-tree-original -std=c99" { target *-*-solaris2* } } */
#include "../builtins-config.h"
extern void bar (long);
#define TESTIT(FUNC) do { \
bar (__builtin_##FUNC(d)); \
bar (__builtin_##FUNC##f(f)); \
bar (__builtin_##FUNC##l(ld)); \
} while (0)
void __attribute__ ((__noinline__)) foo (double d, float f, long double ld)
{
TESTIT(nearbyint);
}
int main()
{
foo (1.0, 2.0, 3.0);
return 0;
}
/* { dg-final { scan-tree-dump-times "nearbyint " 1 "original" } } */
/* { dg-final { scan-tree-dump-times "nearbyintf" 1 "original" } } */
/* { dg-final { scan-tree-dump-times "nearbyintl" 1 "original" } } */
/* { dg-final { cleanup-tree-dump "original" } } */