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cse.c (simplify_ternary_operation): Handle more IF_THEN_ELSE simplifications.

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* cse.c (simplify_ternary_operation): Handle more IF_THEN_ELSE
        simplifications.

From-SVN: r17465
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Jeffrey A Law 1998-01-23 23:06:03 +00:00 • committed by Jeff Law
parent b4b04bf97f
commit ed1ecb1930
2 changed files with 14 additions and 0 deletions
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gcc/ChangeLog
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@ -1,5 +1,8 @@
Fri Jan 23 22:48:24 1998 Jeffrey A Law (law@cygnus.com)
* cse.c (simplify_ternary_operation): Handle more IF_THEN_ELSE
simplifications.
* crtstuff.c (init_dummy): Keep the epilogue in the init
section for non-ELF systems.

11
gcc/cse.c
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@ -4713,6 +4713,17 @@ simplify_ternary_operation (code, mode, op0_mode, op0, op1, op2)
&& rtx_equal_p (XEXP (op0, 1), op1)
&& rtx_equal_p (XEXP (op0, 0), op2))
return op2;
else if (! side_effects_p (op0))
{
rtx temp;
temp = simplify_relational_operation (GET_CODE (op0), op0_mode,
XEXP (op0, 0), XEXP (op0, 1));
/* See if any simplifications were possible. */
if (temp == const0_rtx)
return op2;
else if (temp == const1_rtx)
return op1;
}
break;
default: