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* optabs.c (expand_twoval_binop): Avoid undefined behaviour.

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From-SVN: r43403
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Jan Hubicka 2001-06-15 19:44:56 +02:00 committed by Jan Hubicka
parent f254110619
commit 76791f3d95
2 changed files with 7 additions and 5 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
Fri Jun 15 19:35:38 CEST 2001 Jan Hubicka <jh@suse.cz>
* optabs.c (expand_twoval_binop): Avoid undefined behaviour.
2001-06-15 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific, alpha*-*-*): Fixed Tru64 UNIX

8
gcc/optabs.c
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@ -1992,12 +1992,10 @@ expand_twoval_binop (binoptab, op0, op1, targ0, targ1, unsignedp)
{
register rtx t0 = gen_reg_rtx (wider_mode);
register rtx t1 = gen_reg_rtx (wider_mode);
rtx cop0 = convert_modes (wider_mode, mode, op0, unsignedp);
rtx cop1 = convert_modes (wider_mode, mode, op1, unsignedp);
if (expand_twoval_binop (binoptab,
convert_modes (wider_mode, mode, op0,
unsignedp),
convert_modes (wider_mode, mode, op1,
unsignedp),
if (expand_twoval_binop (binoptab, cop0, cop1,
t0, t1, unsignedp))
{
convert_move (targ0, t0, unsignedp);