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| author | Richard Henderson <rth@redhat.com> | 2014-11-19 05:30:59 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2014-11-19 05:30:59 -0800 |
| commit | f2d3d07ee55fa52b41c1ec08e51269831961a772 (patch) | |
| tree | 7cca5afeed122318032b1af7171e8154c14590df /gcc/calls.c | |
| parent | c21df29bcfc04945d3a7be6a0c6e306fc9efc505 (diff) | |
| download | gcc-f2d3d07ee55fa52b41c1ec08e51269831961a772.zip gcc-f2d3d07ee55fa52b41c1ec08e51269831961a772.tar.gz gcc-f2d3d07ee55fa52b41c1ec08e51269831961a772.tar.bz2 | |
Allow the front-end to create calls with a static chain
And, at the same time, allow indirect calls to have a static chain.
We'll always eliminate the static chain if we can prove it's unused.
* calls.c (prepare_call_address): Allow decl or type for first arg.
(expand_call): Pass type to prepare_call_address if no decl.
* gimple-fold.c (gimple_fold_call): Eliminate the static chain if
the function doesn't use it; fold it otherwise.
* gimplify.c (gimplify_call_expr): Gimplify the static chain.
* tree-cfg.c (verify_gimple_call): Allow a static chain on indirect
function calls.
From-SVN: r217770
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index 7f55aaf..c64c0eb 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -197,7 +197,7 @@ static void restore_fixed_argument_area (rtx, rtx, int, int); CALL_INSN_FUNCTION_USAGE information. */ rtx -prepare_call_address (tree fndecl, rtx funexp, rtx static_chain_value, +prepare_call_address (tree fndecl_or_type, rtx funexp, rtx static_chain_value, rtx *call_fusage, int reg_parm_seen, int sibcallp) { /* Make a valid memory address and copy constants through pseudo-regs, @@ -217,12 +217,13 @@ prepare_call_address (tree fndecl, rtx funexp, rtx static_chain_value, #endif } - if (static_chain_value != 0) + if (static_chain_value != 0 + && (TREE_CODE (fndecl_or_type) != FUNCTION_DECL + || DECL_STATIC_CHAIN (fndecl_or_type))) { rtx chain; - gcc_assert (fndecl); - chain = targetm.calls.static_chain (fndecl, false); + chain = targetm.calls.static_chain (fndecl_or_type, false); static_chain_value = convert_memory_address (Pmode, static_chain_value); emit_move_insn (chain, static_chain_value); @@ -3278,8 +3279,9 @@ expand_call (tree exp, rtx target, int ignore) } after_args = get_last_insn (); - funexp = prepare_call_address (fndecl, funexp, static_chain_value, - &call_fusage, reg_parm_seen, pass == 0); + funexp = prepare_call_address (fndecl ? fndecl : fntype, funexp, + static_chain_value, &call_fusage, + reg_parm_seen, pass == 0); load_register_parameters (args, num_actuals, &call_fusage, flags, pass == 0, &sibcall_failure); |