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(fold): Don't assume a nonexplicit constant cannot equal an explicit one.

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From-SVN: r13650
This commit is contained in:
Richard Kenner 1997-02-15 18:49:22 -05:00
parent 6ac62473ac
commit e80c9ccb75
1 changed files with 2 additions and 1 deletions
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3
gcc/fold-const.c
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@ -5335,6 +5335,7 @@ fold (expr)
0); 0);
} }
#if 0 /* This is no longer useful, but breaks some real code. */
/* Assume a nonexplicit constant cannot equal an explicit one, /* Assume a nonexplicit constant cannot equal an explicit one,
since such code would be undefined anyway. since such code would be undefined anyway.
Exception: on sysvr4, using #pragma weak, Exception: on sysvr4, using #pragma weak,
@ -5345,7 +5346,7 @@ fold (expr)
&& TREE_CODE (arg0) == ADDR_EXPR && TREE_CODE (arg0) == ADDR_EXPR
&& code == EQ_EXPR) && code == EQ_EXPR)
t1 = build_int_2 (0, 0); t1 = build_int_2 (0, 0);
#endif
/* Two real constants can be compared explicitly. */ /* Two real constants can be compared explicitly. */
else if (TREE_CODE (arg0) == REAL_CST && TREE_CODE (arg1) == REAL_CST) else if (TREE_CODE (arg0) == REAL_CST && TREE_CODE (arg1) == REAL_CST)
{ {