diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 80f2fbbf4b7..47c61cdb133 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -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; } |