diff options
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 6402f43..814e2bb 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -828,6 +828,40 @@ set_decl_rtl (tree t, rtx x) } } +/* Assign the RTX X to parameter declaration T. */ +void +set_decl_incoming_rtl (tree t, rtx x) +{ + DECL_INCOMING_RTL (t) = x; + + if (!x) + return; + /* For register, we maintain the reverse information too. */ + if (GET_CODE (x) == REG) + REG_ATTRS (x) = get_reg_attrs (t, 0); + else if (GET_CODE (x) == SUBREG) + REG_ATTRS (SUBREG_REG (x)) + = get_reg_attrs (t, -SUBREG_BYTE (x)); + if (GET_CODE (x) == CONCAT) + { + if (REG_P (XEXP (x, 0))) + REG_ATTRS (XEXP (x, 0)) = get_reg_attrs (t, 0); + if (REG_P (XEXP (x, 1))) + REG_ATTRS (XEXP (x, 1)) + = get_reg_attrs (t, GET_MODE_UNIT_SIZE (GET_MODE (XEXP (x, 0)))); + } + if (GET_CODE (x) == PARALLEL) + { + int i; + for (i = 0; i < XVECLEN (x, 0); i++) + { + rtx y = XVECEXP (x, 0, i); + if (REG_P (XEXP (y, 0))) + REG_ATTRS (XEXP (y, 0)) = get_reg_attrs (t, INTVAL (XEXP (y, 1))); + } + } +} + /* Identify REG (which may be a CONCAT) as a user register. */ void |