diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 2693810..e8ab4d574 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -1789,6 +1789,10 @@ expand_builtin_mathfn (tree exp, rtx target, rtx subtarget) /* Make a suitable register to place result in. */ mode = TYPE_MODE (TREE_TYPE (exp)); + + /* Before working hard, check whether the instruction is available. */ + if (builtin_optab->handlers[(int) mode].insn_code == CODE_FOR_nothing) + return 0; target = gen_reg_rtx (mode); if (! flag_errno_math || ! HONOR_NANS (mode)) @@ -1874,6 +1878,11 @@ expand_builtin_mathfn_2 (tree exp, rtx target, rtx subtarget) /* Make a suitable register to place result in. */ mode = TYPE_MODE (TREE_TYPE (exp)); + + /* Before working hard, check whether the instruction is available. */ + if (builtin_optab->handlers[(int) mode].insn_code == CODE_FOR_nothing) + return 0; + target = gen_reg_rtx (mode); if (! flag_errno_math || ! HONOR_NANS (mode)) |