diff options
Diffstat (limited to 'gcc/postreload.c')
| -rw-r--r-- | gcc/postreload.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/postreload.c b/gcc/postreload.c index 5f4ae4f5b18..d1e58ab944d 100644 --- a/gcc/postreload.c +++ b/gcc/postreload.c @@ -1429,6 +1429,7 @@ static void move2add_note_store (rtx dst, rtx set, void *data ATTRIBUTE_UNUSED) { unsigned int regno = 0; + unsigned int nregs = 0; unsigned int i; enum machine_mode mode = GET_MODE (dst); @@ -1438,6 +1439,7 @@ move2add_note_store (rtx dst, rtx set, void *data ATTRIBUTE_UNUSED) GET_MODE (SUBREG_REG (dst)), SUBREG_BYTE (dst), GET_MODE (dst)); + nregs = subreg_nregs (dst); dst = SUBREG_REG (dst); } @@ -1455,9 +1457,11 @@ move2add_note_store (rtx dst, rtx set, void *data ATTRIBUTE_UNUSED) return; regno += REGNO (dst); + if (!nregs) + nregs = hard_regno_nregs[regno][mode]; if (SCALAR_INT_MODE_P (GET_MODE (dst)) - && hard_regno_nregs[regno][mode] == 1 && GET_CODE (set) == SET + && nregs == 1 && GET_CODE (set) == SET && GET_CODE (SET_DEST (set)) != ZERO_EXTRACT && GET_CODE (SET_DEST (set)) != STRICT_LOW_PART) { @@ -1557,7 +1561,7 @@ move2add_note_store (rtx dst, rtx set, void *data ATTRIBUTE_UNUSED) } else { - unsigned int endregno = regno + hard_regno_nregs[regno][mode]; + unsigned int endregno = regno + nregs; for (i = regno; i < endregno; i++) /* Reset the information about this register. */ |