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authorjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2012-01-25 15:38:51 +0000
committerjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2012-01-25 15:38:51 +0000
commite9156caddd536d78a5ad8fb65b9dbe9369368d60 (patch)
treeda4aee72f971bac439fb906dc91d3892031fd544 /gcc/tree-data-ref.c
parentf9f051a3cfb80007fc08267d6cf76ba58534414a (diff)
downloadgcc-e9156caddd536d78a5ad8fb65b9dbe9369368d60.tar.gz
PR tree-optimization/51987
* tree-data-ref.c (get_references_in_stmt): Handle references in non-volatile GIMPLE_ASM. * gcc.target/i386/pr51987.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@183524 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-data-ref.c')
-rw-r--r--gcc/tree-data-ref.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c
index a0d86ec9c11..09929c79ebf 100644
--- a/gcc/tree-data-ref.c
+++ b/gcc/tree-data-ref.c
@@ -1,5 +1,5 @@
/* Data references and dependences detectors.
- Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Free Software Foundation, Inc.
Contributed by Sebastian Pop <pop@cri.ensmp.fr>
@@ -4185,7 +4185,7 @@ get_references_in_stmt (gimple stmt, VEC (data_ref_loc, heap) **references)
if ((stmt_code == GIMPLE_CALL
&& !(gimple_call_flags (stmt) & (ECF_CONST | ECF_PURE)))
|| (stmt_code == GIMPLE_ASM
- && gimple_asm_volatile_p (stmt)))
+ && (gimple_asm_volatile_p (stmt) || gimple_vuse (stmt))))
clobbers_memory = true;
if (!gimple_vuse (stmt))