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rtlhooks.c (gen_lowpart_if_possible): Check for invalid subreg before calling gen_lowpart_SUBREG.

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2007-07-02  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * rtlhooks.c (gen_lowpart_if_possible): Check for
        invalid subreg before calling gen_lowpart_SUBREG.

From-SVN: r126230
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Andrew Pinski 2007-07-02 19:40:30 +00:00 • committed by Andrew Pinski
parent 22f70bffdd
commit e4950e42af
2 changed files with 8 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2007-07-02 Andrew Pinski <andrew_pinski@playstation.sony.com>
* rtlhooks.c (gen_lowpart_if_possible): Check for
invalid subreg before calling gen_lowpart_SUBREG.
2007-07-02 Geoffrey Keating <geoffk@apple.com>
* config/darwin9.h: Add copyright notice.

4
gcc/rtlhooks.c
View file

@ -161,7 +161,9 @@ gen_lowpart_if_possible (enum machine_mode mode, rtx x)
return new;
}
else if (mode != GET_MODE (x) && GET_MODE (x) != VOIDmode)
else if (mode != GET_MODE (x) && GET_MODE (x) != VOIDmode
&& validate_subreg (mode, GET_MODE (x), x,
subreg_lowpart_offset (mode, GET_MODE (x))))
return gen_lowpart_SUBREG (mode, x);
else
return 0;