diff options
Diffstat (limited to 'gcc/regclass.c')
| -rw-r--r-- | gcc/regclass.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c index 4612f71..21cb6ea 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -2520,7 +2520,7 @@ reg_scan_mark_refs (x, insn, note_flag, min_regno) REG_POINTER (SET_DEST (x)) = 1; /* If this is setting a register from a register or from a simple - conversion of a register, propagate REG_DECL. */ + conversion of a register, propagate REG_EXPR. */ if (GET_CODE (dest) == REG) { rtx src = SET_SRC (x); @@ -2531,10 +2531,10 @@ reg_scan_mark_refs (x, insn, note_flag, min_regno) || (GET_CODE (src) == SUBREG && subreg_lowpart_p (src))) src = XEXP (src, 0); - if (GET_CODE (src) == REG && REGNO_DECL (REGNO (src)) == 0) - REGNO_DECL (REGNO (src)) = REGNO_DECL (REGNO (dest)); - else if (GET_CODE (src) == REG && REGNO_DECL (REGNO (dest)) == 0) - REGNO_DECL (REGNO (dest)) = REGNO_DECL (REGNO (src)); + if (!REG_ATTRS (dest) && REG_P (src)) + REG_ATTRS (dest) = REG_ATTRS (src); + if (!REG_ATTRS (dest) && GET_CODE (src) == MEM) + set_reg_attrs_from_mem (dest, src); } /* ... fall through ... */ |