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authorjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2011-05-23 17:02:07 +0000
committerjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2011-05-23 17:02:07 +0000
commit5f28ce61231ed1e47f2aa36947fb36ca1db09aa5 (patch)
treed7c65afce29be2b652a434429b6cf5ad21e3f269 /gcc/cfgexpand.c
parent0b70e1e33afa25536305f4a228409cf9b4e0eaad (diff)
downloadgcc-5f28ce61231ed1e47f2aa36947fb36ca1db09aa5.tar.gz
* cfgexpand.c (expand_debug_expr): For unused non-addressable
parameters passed in memory prefer using DECL_INCOMING_RTL over the pseudos it will be copied into. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174079 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cfgexpand.c')
-rw-r--r--gcc/cfgexpand.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index ecf2510a0f4..b22ba71375f 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -3160,6 +3160,20 @@ expand_debug_expr (tree exp)
ENTRY_VALUE_EXP (op0) = incoming;
goto adjust_mode;
}
+ if (incoming
+ && MEM_P (incoming)
+ && !TREE_ADDRESSABLE (SSA_NAME_VAR (exp))
+ && GET_MODE (incoming) != BLKmode
+ && (XEXP (incoming, 0) == virtual_incoming_args_rtx
+ || (GET_CODE (XEXP (incoming, 0)) == PLUS
+ && XEXP (XEXP (incoming, 0), 0)
+ == virtual_incoming_args_rtx
+ && CONST_INT_P (XEXP (XEXP (incoming, 0),
+ 1)))))
+ {
+ op0 = incoming;
+ goto adjust_mode;
+ }
op0 = expand_debug_expr (SSA_NAME_VAR (exp));
if (!op0)
return NULL;