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Re: Fix powerpc64 g77

David Edelsohn <dje@watson.ibm.com> writes:

| 	The protected code is:
| 
| #if HOST_BITS_PER_WIDE_INT == 32
| 	  ...
| #else
| 	  low |= high << 32;
| 	  low <<= POINTER_SIZE - GET_MODE_BITSIZE (mode);
| 	  high = (HOST_WIDE_INT) low >> 32;
| 	  low &= 0xffffffff;
| #endif
| 
| If the conditional used if() instead of #if (so that GCC always parsed
| both branches) and HOST_BITS_PER_WIDE_INT == 32, one would received the
| following GCC warnings:
| 
| warning: left shift count >= width of type
| warning: right shift count >= width of type

If that does happen, then it is a bug (in the compiler).

-- Gaby
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