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-rw-r--r--gcc/stor-layout.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c
index 21a8f4404ae..a4698157cc7 100644
--- a/gcc/stor-layout.c
+++ b/gcc/stor-layout.c
@@ -1190,7 +1190,7 @@ get_best_mode (bitsize, bitpos, align, largest_mode, volatilep)
mode = GET_MODE_WIDER_MODE (mode))
{
unit = GET_MODE_BITSIZE (mode);
- if (bitpos / unit == (bitpos + bitsize - 1) / unit)
+ if ((bitpos % unit) + bitsize <= unit)
break;
}