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authorAndrew Pinski <andrew_pinski@playstation.sony.com>2007-07-02 19:40:30 +0000
committerAndrew Pinski <pinskia@gcc.gnu.org>2007-07-02 12:40:30 -0700
commite4950e42af5b71476c43f30056a1e3aaac7aa36a (patch)
tree56f116be67ba56c1e25f3fe21e0199e7d7b3078d /gcc
parent22f70bffdd485129dfdba38a880b22781449269e (diff)
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rtlhooks.c (gen_lowpart_if_possible): Check for invalid subreg before calling gen_lowpart_SUBREG.
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
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/rtlhooks.c4
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d0fc5be..2ef7b32 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -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.
diff --git a/gcc/rtlhooks.c b/gcc/rtlhooks.c
index ece7198..79fcb44 100644
--- a/gcc/rtlhooks.c
+++ b/gcc/rtlhooks.c
@@ -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;