| // The G++ FE does some constant-folding at -O1 and above; it |
| // recognizes the 1,2,3 test can be converted into a range expression |
| // ((signed char)(op.datatype-1) < 3). Alas, it generated an |
| // ambiguous conversion that was mis-interpreted by the GCC=>LLVM |
| // translation phase. <rdar://problem/9186245> |
| #include <stdio.h> |
| |
| typedef struct _operation { |
| unsigned int datatype : 3; |
| |
| } operation; |
| |
| operation op; |
| |
| void __attribute__ ((__noinline__)) |
| init() { |
| op.datatype = 4; |
| } |
| |
| |
| int main( int argc, char *argv[] ) |
| { |
| init(); |
| if( (1 == op.datatype) || |
| (2 == op.datatype) || |
| (3 == op.datatype) ) |
| { |
| printf( "1, 2 or 3: FAIL\n" ); |
| } |
| else if (4 == op.datatype) |
| { |
| printf( "4: PASS\n" ); |
| return 0; |
| } |
| else |
| printf( "Not 1,2,3 or 4: FAIL\n" ); |
| return -1; |
| } |
| |
