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-rw-r--r--gcc/combine.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c
index a9ad710..f64feca 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -8136,18 +8136,26 @@ nonzero_bits (x, mode)
result_low = low0 + low1;
break;
case DIV:
+ if (width1 == 0)
+ break;
if (! op0_maybe_minusp && ! op1_maybe_minusp)
result_width = width0;
break;
case UDIV:
+ if (width1 == 0)
+ break;
result_width = width0;
break;
case MOD:
+ if (width1 == 0)
+ break;
if (! op0_maybe_minusp && ! op1_maybe_minusp)
result_width = MIN (width0, width1);
result_low = MIN (low0, low1);
break;
case UMOD:
+ if (width1 == 0)
+ break;
result_width = MIN (width0, width1);
result_low = MIN (low0, low1);
break;