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re PR tree-optimization/39829 (ICE with some code that produces VCE) 

2009-04-21  Richard Guenther  <rguenther@suse.de>

	PR middle-end/39829
	* gimple.c (walk_stmt_load_store_addr_ops): Catch addresses
	inside VIEW_CONVERT_EXPRs.

	* gcc.dg/torture/pr39829.c: New testcase.

From-SVN: r146521
This commit is contained in:
Richard Guenther 2009-04-21 12:42:24 +00:00 committed by Richard Biener
parent 7156c8abaf
commit ad8a1ac09d
4 changed files with 40 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-04-21 Richard Guenther <rguenther@suse.de>
PR middle-end/39829
* gimple.c (walk_stmt_load_store_addr_ops): Catch addresses
inside VIEW_CONVERT_EXPRs.
2009-04-21 Martin Jambor <mjambor@suse.cz>
* tree-switch-conversion.c (build_constructors): Split a long line.

2
gcc/gimple.c
View File

@ -3231,6 +3231,8 @@ walk_stmt_load_store_addr_ops (gimple stmt, void *data,
ret |= visit_store (stmt, lhs, data);
}
rhs = gimple_assign_rhs1 (stmt);
while (handled_component_p (rhs))
rhs = TREE_OPERAND (rhs, 0);
if (visit_addr)
{
if (TREE_CODE (rhs) == ADDR_EXPR)

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2009-04-21 Richard Guenther <rguenther@suse.de>
PR middle-end/39829
* gcc.dg/torture/pr39829.c: New testcase.
2009-04-21 Martin Jambor <mjambor@suse.cz>
* gcc.dg/tree-ssa/cswtch-2.c: New test.

27
gcc/testsuite/gcc.dg/torture/pr39829.c Normal file
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@ -0,0 +1,27 @@
/* { dg-do compile } */
/* { dg-options "-w" } */
void foo (void * DAG_temp117584)
{
char uA;
void* pA;
void* pB;
void* pC;
do {
int DAG_temp117585;
int DAG_temp117586;
void ** __indir_union1 = (void**)DAG_temp117584;
DAG_temp117585 = (long)*__indir_union1;
DAG_temp117586 = DAG_temp117585;
if ( DAG_temp117586 != (int)268435456 )
pA = (void*)&uA;
pB = (void*)&pA;
pC = pB;
union __block_indir0_u { struct { long val; } __indir_struct; }
* __indir_union = (union __block_indir0_u*)pC;
f(__indir_union->__indir_struct.val);
DAG_temp117584 += 64;
} while (1);
}