diff options
Diffstat (limited to 'gcc/postreload.c')
| -rw-r--r-- | gcc/postreload.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/postreload.c b/gcc/postreload.c index f76321d..38948dc 100644 --- a/gcc/postreload.c +++ b/gcc/postreload.c @@ -1699,14 +1699,16 @@ move2add_valid_value_p (int regno, machine_mode mode) if (mode != reg_mode[regno]) { - if (!MODES_OK_FOR_MOVE2ADD (mode, reg_mode[regno])) + scalar_int_mode old_mode; + if (!is_a <scalar_int_mode> (reg_mode[regno], &old_mode) + || !MODES_OK_FOR_MOVE2ADD (mode, old_mode)) return false; /* The value loaded into regno in reg_mode[regno] is also valid in mode after truncation only if (REG:mode regno) is the lowpart of (REG:reg_mode[regno] regno). Now, for big endian, the starting regno of the lowpart might be different. */ - int s_off = subreg_lowpart_offset (mode, reg_mode[regno]); - s_off = subreg_regno_offset (regno, reg_mode[regno], s_off, mode); + int s_off = subreg_lowpart_offset (mode, old_mode); + s_off = subreg_regno_offset (regno, old_mode, s_off, mode); if (s_off != 0) /* We could in principle adjust regno, check reg_mode[regno] to be BLKmode, and return s_off to the caller (vs. -1 for failure), |