Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/torture/pr19683-1.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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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); #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 #if __mips_isa_rev <= 5 union u { unsigned long long ll; unsigned int i[2]; }; unsigned int __attribute__ ((nomips16)) 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; } #endif int __attribute__ ((nomips16)) main (void) { #if __mips_isa_rev <= 5 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 (); #endif exit (0); }