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| author | Mike Stump <mikestump@comcast.net> | 2011-02-07 20:41:50 +0000 |
|---|---|---|
| committer | Mike Stump <mrs@gcc.gnu.org> | 2011-02-07 20:41:50 +0000 |
| commit | 41cf94fbbaaa245b707a0242b61daf18843aa860 (patch) | |
| tree | 64b9e1e54766da31a2f1890d359a6c3a67297b5c /gcc/config/darwin.c | |
| parent | ee09a3dd0fc25264794888516d41434a281f7daa (diff) | |
| download | gcc-41cf94fbbaaa245b707a0242b61daf18843aa860.zip gcc-41cf94fbbaaa245b707a0242b61daf18843aa860.tar.gz gcc-41cf94fbbaaa245b707a0242b61daf18843aa860.tar.bz2 | |
re PR target/47558 (163267 breaks exception traceback in xplor-nih)
PR target/47558
Add __ieee_divdc3 entry point.
* config/i386/darwin.h (DECLARE_LIBRARY_RENAMES): Retain ___divdc3
entry point.
(SUBTARGET_INIT_BUILTINS): Call darwin_rename_builtins.
* config/i386/i386.c (TARGET_INIT_LIBFUNCS): Likewise.
* config/darwin.c (darwin_rename_builtins): Add.
* config/darwin-protos.h (darwin_rename_builtins): Add.
From-SVN: r169902
Diffstat (limited to 'gcc/config/darwin.c')
| -rw-r--r-- | gcc/config/darwin.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/config/darwin.c b/gcc/config/darwin.c index cd6a815..8ccf18c 100644 --- a/gcc/config/darwin.c +++ b/gcc/config/darwin.c @@ -2823,6 +2823,34 @@ darwin_fold_builtin (tree fndecl, int n_args, tree *argp, return NULL_TREE; } +void +darwin_rename_builtins (void) +{ + /* The system ___divdc3 routine in libSystem on darwin10 is not + accurate to 1ulp, ours is, so we avoid ever using the system name + for this routine and instead install a non-conflicting name that + is accurate. + + When -ffast-math or -funsafe-math-optimizations is given, we can + use the faster version. */ + if (!flag_unsafe_math_optimizations) + { + int dcode = (BUILT_IN_COMPLEX_DIV_MIN + + DCmode - MIN_MODE_COMPLEX_FLOAT); + tree fn = built_in_decls[dcode]; + /* Fortran and c call TARGET_INIT_BUILTINS and + TARGET_INIT_LIBFUNCS at different times, so we have to put a + call into each to ensure that at least one of them is called + after build_common_builtin_nodes. A better fix is to add a + new hook to run after build_common_builtin_nodes runs. */ + if (fn) + set_user_assembler_name (fn, "___ieee_divdc3"); + fn = implicit_built_in_decls[dcode]; + if (fn) + set_user_assembler_name (fn, "___ieee_divdc3"); + } +} + static hashval_t cfstring_hash (const void *ptr) { |