diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 13 |
1 files changed, 9 insertions, 4 deletions
@@ -3232,11 +3232,16 @@ emit_move_complex (enum machine_mode mode, rtx x, rtx y) if (push_operand (x, mode)) return emit_move_complex_push (mode, x, y); - /* See if we can coerce the target into moving both values at once. */ - - /* Move floating point as parts. */ + /* See if we can coerce the target into moving both values at once, except + for floating point where we favor moving as parts if this is easy. */ if (GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT - && optab_handler (mov_optab, GET_MODE_INNER (mode)) != CODE_FOR_nothing) + && optab_handler (mov_optab, GET_MODE_INNER (mode)) != CODE_FOR_nothing + && !(REG_P (x) + && HARD_REGISTER_P (x) + && hard_regno_nregs[REGNO(x)][mode] == 1) + && !(REG_P (y) + && HARD_REGISTER_P (y) + && hard_regno_nregs[REGNO(y)][mode] == 1)) try_int = false; /* Not possible if the values are inherently not adjacent. */ else if (GET_CODE (x) == CONCAT || GET_CODE (y) == CONCAT) |