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| author | Jan Hubicka <hubicka@ucw.cz> | 2014-11-10 20:14:17 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2014-11-10 19:14:17 +0000 |
| commit | fe8dd12e2057860085caad10d0f4d2c681ff8bf9 (patch) | |
| tree | ea3e010ea64a6fc13c330cfb2ace81f92aea443d /gcc/calls.c | |
| parent | be8118c57b2b52b71f27c74c9db2495cf9466c41 (diff) | |
| download | gcc-fe8dd12e2057860085caad10d0f4d2c681ff8bf9.tar.gz | |
re PR bootstrap/63573 (libgo: ICE building libgo on powerpc-linux-gnu)
PR bootstrap/63573
* calls.c (initialize_argument_information): When emitting thunk call
use original memory placement of the argument.
From-SVN: r217307
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index 06b8485ff7f..7f55aafa734 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -1304,6 +1304,16 @@ initialize_argument_information (int num_actuals ATTRIBUTE_UNUSED, && TREE_CODE (base) != SSA_NAME && (!DECL_P (base) || MEM_P (DECL_RTL (base))))) { + /* Argument setup code may have copied the value to register. We + revert that optimization now because the tail call code must + use the original location. */ + if (TREE_CODE (args[i].tree_value) == PARM_DECL + && !MEM_P (DECL_RTL (args[i].tree_value)) + && DECL_INCOMING_RTL (args[i].tree_value) + && MEM_P (DECL_INCOMING_RTL (args[i].tree_value))) + set_decl_rtl (args[i].tree_value, + DECL_INCOMING_RTL (args[i].tree_value)); + mark_addressable (args[i].tree_value); /* We can't use sibcalls if a callee-copied argument is |