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Check for NULL return from gen_lowpart_if_possible().

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From-SVN: r23049
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Nick Clifton 1998-10-13 11:39:26 +00:00 • committed by Nick Clifton
parent 38ada91eef
commit 2ce5e1b422
2 changed files with 6 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
* cse.c (equiv_constant): Check for NULL return from
gen_lowpart_if_possible().
Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
* collect2.c (main): Pass -EL/-EB through to the compiler.

2
gcc/cse.c
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@ -5860,7 +5860,7 @@ equiv_constant (x)
&& qty_const[reg_qty[REGNO (x)]])
x = gen_lowpart_if_possible (GET_MODE (x), qty_const[reg_qty[REGNO (x)]]);
if (x != 0 && CONSTANT_P (x))
if (x == 0 || CONSTANT_P (x))
return x;
/* If X is a MEM, try to fold it outside the context of any insn to see if