| /* APPLE LOCAL file bswap support */ |
| /* These cases should NOT generate bswap. */ |
| /* { dg-do compile } */ |
| /* { dg-options "-O0 -std=gnu99" } */ |
| |
| typedef unsigned int uint32; |
| typedef unsigned long long uint64; |
| extern void abort(void); |
| uint32 f (uint32) __attribute__((noinline)); |
| uint64 llf (uint64) __attribute__((noinline)); |
| unsigned int Reverse4 (volatile unsigned int) __attribute__((noinline)); |
| uint32 Reverse5 (uint32) __attribute__((noinline)); |
| unsigned int Reverse6 (unsigned int) __attribute__((noinline)); |
| uint64 llReverse4 (volatile uint64) __attribute__((noinline)); |
| unsigned long long llReverse5 (unsigned long long) __attribute__((noinline)); |
| uint64 llReverse6 (uint64) __attribute__((noinline)); |
| |
| static int count = 0; |
| static int llcount = 0; |
| uint32 f(uint32 x) { count++; return x; } |
| uint64 llf(uint64 x) { llcount++; return x; } |
| |
| unsigned int Reverse4 (volatile unsigned int x) { /* does NOT produce Rev */ |
| return ((x & 0x0000ff00) <<8) | ((x & 0x00ff0000) >> 8) | ((x & 0xff000000) >> 24) | ((x & 0x000000ff) << 24); |
| } |
| uint32 Reverse5 (uint32 x) { /* does NOT produce Rev */ |
| return ((f(x) & 0x0000ff00) <<8) | ((f(x) & 0x00ff0000) >> 8) | ((f(x) & 0xff000000) >> 24) | ((f(x) & 0x000000ff) << 24); |
| } |
| unsigned int Reverse6 (unsigned int x) { |
| return ((x & 0x0000ff00) <<8) | ((x & 0x0000ff00) >> 8) | ((x & 0xff000000) >> 24) | ((x & 0x000000ff) << 24); |
| } |
| |
| uint64 llReverse4 (volatile uint64 x) { |
| return ((x&0xFF00000000000000ull)>>56) | ((x&0x00FF000000000000ull)>>40) | ((x&0x0000FF0000000000ull)>>24) | ((x&0x000000FF00000000ull)>> 8) |
| | ((x&0x00000000FF000000ull)<< 8) | ((x&0x0000000000FF0000ull)<<24) | ((x&0x000000000000FF00ull)<<40) | ((x&0x00000000000000FFull)<<56); |
| } |
| unsigned long long llReverse5 (unsigned long long x) { |
| return ((llf(x)&0xFF00000000000000ull)>>56) | ((llf(x)&0x00FF000000000000ull)>>40) | ((llf(x)&0x0000FF0000000000ull)>>24) | ((llf(x)&0x000000FF00000000ull)>> 8) |
| | ((llf(x)&0x00000000FF000000ull)<< 8) | ((llf(x)&0x0000000000FF0000ull)<<24) | ((llf(x)&0x000000000000FF00ull)<<40) | ((llf(x)&0x00000000000000FFull)<<56); |
| } |
| uint64 llReverse6 (uint64 x) { |
| return ((x&0xFF00000000000000ull)>>56) | ((x&0x00FF000000000000ull)>>40) | ((x&0x0000FF0000000000ull)>>24) | ((x&0x000000000000ff00ull)>> 8) |
| | ((x&0x00000000FF000000ull)<< 8) | ((x&0x0000000000FF0000ull)<<24) | ((x&0x000000000000FF00ull)<<40) | ((x&0x00000000000000FFull)<<56); |
| } |
| int main() { |
| unsigned int x = 0x12345678; |
| unsigned long long y = 0x123456789abcdef0ull; |
| if (Reverse4(x) != 0x78563412) |
| abort(); |
| if (Reverse5(x) != 0x78563412) |
| abort(); |
| if (count != 4) |
| abort(); |
| if (Reverse6(x) != 0x78560056) |
| abort(); |
| if (llReverse4(y) != 0xf0debc9a78563412ull) |
| abort(); |
| if (llReverse5(y) != 0xf0debc9a78563412ull) |
| abort(); |
| if (llcount != 8) |
| abort(); |
| if (llReverse6(y) != 0xf0debc9a005634deull) |
| abort(); |
| return 0; |
| } |
| |
| /* { dg-final { if [ istarget arm*-*-darwin* ] { scan-assembler-not "\\\trev" } } } */ |
| /* { dg-final { if [ istarget i?86-*-darwin* ] { scan-assembler-not "\\\tbswap" } } } */ |
| |