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(expand_function_end): Allow TRAMPOLINE_TEMPLATE

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to be omitted on systems for which it is not cost effective.

From-SVN: r11822
This commit is contained in:
Richard Kenner 1996-04-16 16:51:20 -04:00
parent 8b7bf67189
commit 1e2414db59
1 changed files with 12 additions and 5 deletions
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17
gcc/function.c
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@ -5309,7 +5309,9 @@ expand_function_end (filename, line, end_bindings)
register int i;
tree link;
#ifdef TRAMPOLINE_TEMPLATE
static rtx initial_trampoline;
#endif
if (output_bytecode)
{
@ -5342,8 +5344,10 @@ expand_function_end (filename, line, end_bindings)
tree function = TREE_PURPOSE (link);
rtx context = lookup_static_chain (function);
rtx tramp = RTL_EXPR_RTL (TREE_VALUE (link));
rtx blktramp;
rtx seq;
#ifdef TRAMPOLINE_TEMPLATE
/* First make sure this compilation has a template for
initializing trampolines. */
if (initial_trampoline == 0)
@ -5353,15 +5357,18 @@ expand_function_end (filename, line, end_bindings)
= gen_rtx (MEM, BLKmode, assemble_trampoline_template ());
resume_temporary_allocation ();
}
#endif
/* Generate insns to initialize the trampoline. */
start_sequence ();
tramp = change_address (initial_trampoline, BLKmode,
round_trampoline_addr (XEXP (tramp, 0)));
emit_block_move (tramp, initial_trampoline, GEN_INT (TRAMPOLINE_SIZE),
tramp = round_trampoline_addr (XEXP (tramp, 0));
#ifdef TRAMPOLINE_TEMPLATE
blktramp = change_address (initial_trampoline, BLKmode, tramp);
emit_block_move (blktramp, initial_trampoline,
GEN_INT (TRAMPOLINE_SIZE),
FUNCTION_BOUNDARY / BITS_PER_UNIT);
INITIALIZE_TRAMPOLINE (XEXP (tramp, 0),
XEXP (DECL_RTL (function), 0), context);
#endif
INITIALIZE_TRAMPOLINE (tramp, XEXP (DECL_RTL (function), 0), context);
seq = get_insns ();
end_sequence ();