mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-05 05:00:26 +08:00
Code Issues Packages Projects Releases Wiki Activity

tree-ssa-sccvn.c (vn_reference_lookup_3): Bail out instead of aborting if the sizes of the two references don't match.

Browse Source 
* tree-ssa-sccvn.c (vn_reference_lookup_3): Bail out instead of
	aborting if the sizes of the two references don't match.

From-SVN: r153777
This commit is contained in:
Eric Botcazou 2009-10-31 15:42:14 +00:00 committed by Eric Botcazou
parent 2e57e8534f
commit 03472fddff
4 changed files with 54 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2009-10-31 Eric Botcazou <ebotcazou@adacore.com>
* tree-ssa-sccvn.c (vn_reference_lookup_3): Bail out instead of
aborting if the sizes of the two references don't match.
2009-10-31 Toon Moene <toon@moene.org>
* ipa-inline.c (cgraph_decide_inlining):

5
gcc/testsuite/ChangeLog
View File

@ -1,9 +1,12 @@
2009-10-31 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/specs/rep_clause4.ads: New test.
2009-10-30 Andy Hutchinson <hutchinsonandy@gcc.gnu.org>
PR target/41885
* gcc.target/avr/torture/pr41885.c: New test.
2009-10-30 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/specs/pack5.ads: New test.

42
gcc/testsuite/gnat.dg/specs/rep_clause4.ads Normal file
View File

@ -0,0 +1,42 @@
-- { dg-do compile }
-- { dg-options "-O" }
package Rep_Clause4 is
type Uns16 is mod 2**16;
type Rec32 is
record
W1 : Uns16 := 1;
W2 : Uns16 := 2;
end record;
for Rec32 use
record
W1 at 0 range 0..15;
W2 at 2 range 0..15;
end record;
for Rec32'size use 32;
type Rec48 is
record
W1andW2 : Rec32;
W3 : Uns16;
end record;
for Rec48 use
record
W1andW2 at 0 range 0..31;
W3 at 4 range 0..15;
end record;
for Rec48'size use 48;
type Rec_Type is
record
Field1 : Rec48;
end record;
for Rec_Type use
record
Field1 at 0 range 0 .. 47;
end record;
for Rec_Type'size use 48;
end Rep_Clause4;

4
gcc/tree-ssa-sccvn.c
View File

@ -1157,7 +1157,9 @@ vn_reference_lookup_3 (ao_ref *ref, tree vuse, void *vr_)
/* Adjust *ref from the new operands. */
if (!ao_ref_init_from_vn_reference (&r, vr->set, vr->type, vr->operands))
return (void *)-1;
gcc_assert (ref->size == r.size);
/* This can happen with bitfields. */
if (ref->size != r.size)
return (void *)-1;
*ref = r;
/* Keep looking for the adjusted *REF / VR pair. */