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| author | Richard Sandiford <richard@codesourcery.com> | 2007-04-24 06:46:37 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2007-04-24 06:46:37 +0000 |
| commit | aeed4133ae44ea4861779bfa96b22fcd8c951102 (patch) | |
| tree | a629a926e2e9585780381bf17827c92805eac49d | |
| parent | 7f9844caf1ebd513d8720afa3ce857fada9e94c6 (diff) | |
| download | gcc-aeed4133ae44ea4861779bfa96b22fcd8c951102.zip gcc-aeed4133ae44ea4861779bfa96b22fcd8c951102.tar.gz gcc-aeed4133ae44ea4861779bfa96b22fcd8c951102.tar.bz2 | |
optabs.c (set_conv_libfunc): Prefer libgcc2's __ffsMM2 functions over an external ffs function.
gcc/
* optabs.c (set_conv_libfunc): Prefer libgcc2's __ffsMM2 functions
over an external ffs function.
From-SVN: r124096
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/optabs.c | 10 |
2 files changed, 11 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3983b42..b77b42d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2007-04-24 Richard Sandiford <richard@codesourcery.com> + + * optabs.c (set_conv_libfunc): Prefer libgcc2's __ffsMM2 functions + over an external ffs function. + 2007-04-24 Chao-ying Fu <fu@mips.com> Richard Sandiford <richard@nildram.co.uk> diff --git a/gcc/optabs.c b/gcc/optabs.c index 49e0121..b63accc 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -5411,6 +5411,7 @@ void init_optabs (void) { unsigned int i; + enum machine_mode int_mode; /* Start by initializing all tables to contain CODE_FOR_nothing. */ @@ -5620,6 +5621,11 @@ init_optabs (void) /* Fill in the optabs with the insns we support. */ init_all_optabs (); + /* The ffs function operates on `int'. Fall back on it if we do not + have a libgcc2 function for that width. */ + int_mode = mode_for_size (INT_TYPE_SIZE, MODE_INT, 0); + ffs_optab->handlers[(int) int_mode].libfunc = init_one_libfunc ("ffs"); + /* Initialize the optabs with the names of the library functions. */ init_integral_libfuncs (add_optab, "add", '3'); init_floating_libfuncs (add_optab, "add", '3'); @@ -5731,10 +5737,6 @@ init_optabs (void) abs_optab->handlers[TYPE_MODE (complex_double_type_node)].libfunc = init_one_libfunc ("cabs"); - /* The ffs function operates on `int'. */ - ffs_optab->handlers[(int) mode_for_size (INT_TYPE_SIZE, MODE_INT, 0)].libfunc - = init_one_libfunc ("ffs"); - abort_libfunc = init_one_libfunc ("abort"); memcpy_libfunc = init_one_libfunc ("memcpy"); memmove_libfunc = init_one_libfunc ("memmove"); |