===================================================================
@@ -10908,8 +10908,9 @@
[(set (match_dup 0)
(rotatert:SWI48 (match_dup 1) (match_dup 2)))]
{
- operands[2]
- = GEN_INT (GET_MODE_BITSIZE (<MODE>mode) - INTVAL (operands[2]));
+ int bitsize = GET_MODE_BITSIZE (<MODE>mode);
+
+ operands[2] = GEN_INT ((bitsize - INTVAL (operands[2])) % bitsize);
})
(define_split
@@ -10975,8 +10976,9 @@
[(set (match_dup 0)
(zero_extend:DI (rotatert:SI (match_dup 1) (match_dup 2))))]
{
- operands[2]
- = GEN_INT (GET_MODE_BITSIZE (SImode) - INTVAL (operands[2]));
+ int bitsize = GET_MODE_BITSIZE (SImode);
+
+ operands[2] = GEN_INT ((bitsize - INTVAL (operands[2])) % bitsize);
})
(define_split
===================================================================
@@ -0,0 +1,15 @@
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O -mbmi2" } */
+
+unsigned long long a;
+int b;
+
+int
+fn1(int p1)
+{
+ p1 &= 1;
+ p1 &= (short)~p1;
+ b = a;
+ a = a << p1 | a >> (64 - p1);
+ return p1 + 1 + a;
+}