diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 78076db2bf2..dada41ef848 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -4436,6 +4436,29 @@ expand_builtin_fabs (tree arglist, rtx target, rtx subtarget) return expand_abs (mode, op0, target, 0, safe_from_p (target, arg, 1)); } +/* Expand a call to copysign, copysignf, or copysignl with arguments ARGLIST. + Return NULL is a normal call should be emitted rather than expanding the + function inline. If convenient, the result should be placed in TARGET. + SUBTARGET may be used as the target for computing the operand. */ + +static rtx +expand_builtin_copysign (tree arglist, rtx target, rtx subtarget) +{ + rtx op0, op1; + tree arg; + + if (!validate_arglist (arglist, REAL_TYPE, REAL_TYPE, VOID_TYPE)) + return 0; + + arg = TREE_VALUE (arglist); + op0 = expand_expr (arg, subtarget, VOIDmode, 0); + + arg = TREE_VALUE (TREE_CHAIN (arglist)); + op1 = expand_expr (arg, NULL, VOIDmode, 0); + + return expand_copysign (op0, op1, target); +} + /* Create a new constant string literal and return a char* pointer to it. The STRING_CST value is the LEN characters at STR. */ static tree @@ -5065,6 +5088,14 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode, return target; break; + case BUILT_IN_COPYSIGN: + case BUILT_IN_COPYSIGNF: + case BUILT_IN_COPYSIGNL: + target = expand_builtin_copysign (arglist, target, subtarget); + if (target) + return target; + break; + /* Just do a normal library call if we were unable to fold the values. */ case BUILT_IN_CABS: |