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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [torture/] [pr19683-1.c] - Rev 149
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/* From PR rtl-optimization/19683. On little-endian MIPS targets, reload would incorrectly inherit the high part of the multiplication result. */ /* { dg-do run { target mips*-*-* } } */ extern void abort (void); extern void exit (int); #ifndef __mips16 #define REPEAT10(X, Y) \ X(Y##0); X(Y##1); X(Y##2); X(Y##3); X(Y##4); \ X(Y##5); X(Y##6); X(Y##7); X(Y##8); X(Y##9) #define REPEAT30(X) REPEAT10 (X, 0); REPEAT10 (X, 1); REPEAT10 (X, 2) #define IN(X) unsigned int x##X = ptr[0] #define OUT(X) ptr[0] = x##X union u { unsigned long long ll; unsigned int i[2]; }; unsigned int foo (volatile unsigned int *ptr) { union u u; int result; u.ll = (unsigned long long) ptr[0] * ptr[0]; REPEAT30 (IN); REPEAT30 (OUT); asm ("#" : "=l" (result) : "l" (u.i[1])); return result; } int main (void) { unsigned int array[] = { 1000 * 1000 * 1000 }; union u u; u.ll = (unsigned long long) array[0] * array[0]; if (foo (array) != u.i[1]) abort (); exit (0); } #else int main (void) { exit (0); } #endif
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