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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [powerpc/] [optimize-bswapsi-2.c] - Rev 325
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/* { dg-require-effective-target stdint_types } */ /* { dg-options "-O2 -mcpu=power5" } */ #include <stdint.h> /* This is a clone of gcc-dg/optimize-bswapsi-1.c, redone to use load and stores to test whether lwbrx/stwbrx is generated for normal power systems. */ #define __const_swab32(x) ((uint32_t)( \ (((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) | \ (((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) | \ (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | \ (((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24))) /* This byte swap implementation is used by the Linux kernel and the GNU C library. */ uint32_t swap32_a_load (uint32_t *in) { return __const_swab32 (*in); } /* The OpenSSH byte swap implementation. */ uint32_t swap32_b_load (uint32_t *in) { uint32_t a; a = (*in << 16) | (*in >> 16); a = ((a & 0x00ff00ff) << 8) | ((a & 0xff00ff00) >> 8); return a; } void swap32_a_store (uint32_t *out, uint32_t in) { *out = __const_swab32 (in); } /* The OpenSSH byte swap implementation. */ void swap32_b_store (uint32_t *out, uint32_t in) { uint32_t a; a = (in << 16) | (in >> 16); a = ((a & 0x00ff00ff) << 8) | ((a & 0xff00ff00) >> 8); *out = a; } /* { dg-final { scan-assembler-times "lwbrx" 2 } } */ /* { dg-final { scan-assembler-times "stwbrx" 2 } } */
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