1 /* { dg-do compile { target { ! logical_op_short_circuit } } } */
2 /* { dg-options "-O2 -fdump-tree-dom2-details -w" } */
3
4 enum optab_methods
5 {
6 OPTAB_DIRECT,
7 OPTAB_LIB,
8 OPTAB_WIDEN,
9 OPTAB_LIB_WIDEN,
10 OPTAB_MUST_WIDEN
11 };
12 struct optab_d { };
13 typedef struct optab_d *optab;
14 void
expand_shift_1(int code,int unsignedp,int rotate,optab lshift_optab,optab rshift_arith_optab)15 expand_shift_1 (int code, int unsignedp, int rotate,
16 optab lshift_optab, optab rshift_arith_optab)
17 {
18 int left = (code == 42 || code == 0xde);
19 int attempt;
20 enum optab_methods methods;
21 if (attempt == 0)
22 methods = OPTAB_DIRECT;
23 else if (attempt == 1)
24 methods = OPTAB_WIDEN;
25 if ((!unsignedp || (!left && methods == OPTAB_WIDEN)))
26 {
27 enum optab_methods methods1 = methods;
28 if (unsignedp)
29 methods1 = OPTAB_MUST_WIDEN;
30 expand_binop (left ? lshift_optab : rshift_arith_optab,
31 unsignedp, methods1);
32 }
33 }
34
35 /* When UNSIGNEDP is true, LEFT is false and METHOD == OPTAB_WIDEN
36 we will enter the TRUE arm of the conditional and we can thread
37 the test to compute the first first argument of the expand_binop
38 call if we look backwards through the boolean logicals. */
39 /* { dg-final { scan-tree-dump-times "Threaded" 1 "dom2"} } */
40
41