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(expand_expr, COND_EXPR case): Don't use original target as a temp if it's a volatile mem ref.

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(expand_expr, COND_EXPR case): Don't use original target as a temp if
it's a volatile mem ref.  Finish previous patch (don't expand "X ? A &
1 : A" as "A & (X != 0)").

From-SVN: r8369
This commit is contained in:
Richard Kenner 1994-10-31 08:11:19 -05:00
parent eb11192f9f
commit 2d44400163
1 changed files with 4 additions and 3 deletions
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7
gcc/expr.c
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@ -5534,7 +5534,9 @@ expand_expr (exp, target, tmode, modifier)
temp = 0;
else if (original_target
&& safe_from_p (original_target, TREE_OPERAND (exp, 0))
&& GET_MODE (original_target) == mode)
&& GET_MODE (original_target) == mode
&& ! (GET_CODE (original_target) == MEM
&& MEM_VOLATILE_P (original_target)))
temp = original_target;
else if (mode == BLKmode)
{
@ -5590,8 +5592,7 @@ expand_expr (exp, target, tmode, modifier)
optab boptab = (TREE_CODE (binary_op) == PLUS_EXPR ? add_optab
: TREE_CODE (binary_op) == MINUS_EXPR ? sub_optab
: TREE_CODE (binary_op) == BIT_IOR_EXPR ? ior_optab
: TREE_CODE (binary_op) == BIT_XOR_EXPR ? xor_optab
: and_optab);
: xor_optab);
/* If we had X ? A : A + 1, do this as A + (X == 0).