diff options
Diffstat (limited to 'gcc/config/i386/i386.c')
| -rw-r--r-- | gcc/config/i386/i386.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 1f273b404e7..2e13624af1a 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -3288,6 +3288,27 @@ x86_64_movabs_operand (rtx op, enum machine_mode mode) return 0; } +/* Return nonzero if OPNUM's MEM should be matched + in movabs* patterns. */ + +int +ix86_check_movabs (rtx insn, int opnum) +{ + rtx set, mem; + + set = PATTERN (insn); + if (GET_CODE (set) == PARALLEL) + set = XVECEXP (set, 0, 0); + if (GET_CODE (set) != SET) + abort (); + mem = XEXP (set, opnum); + while (GET_CODE (mem) == SUBREG) + mem = SUBREG_REG (mem); + if (GET_CODE (mem) != MEM) + abort (); + return (volatile_ok || !MEM_VOLATILE_P (mem)); +} + /* Return nonzero if OP is nonmemory operand representable on x86_64. */ int |