MatCat.OpenSource/8sa1-gcc
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

(expand_inline_function): If called function calls alloca, save and

Browse Source 
restore SP around its call.

From-SVN: r8601
This commit is contained in:
Richard Kenner 1994-12-02 18:11:17 -05:00
parent 83b93f40ff
commit 2132517db0
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
gcc/integrate.c
View File

@ -1167,6 +1167,7 @@ expand_inline_function (fndecl, parms, target, ignore, type, structure_value_add
int nargs;
rtx local_return_label = 0;
rtx loc;
rtx stack_save = 0;
rtx temp;
struct inline_remap *map;
rtx cc0_insn = 0;
@ -1648,6 +1649,13 @@ expand_inline_function (fndecl, parms, target, ignore, type, structure_value_add
global_const_equiv_map = map->const_equiv_map;
global_const_equiv_map_size = map->const_equiv_map_size;
/* If the called fucntion does an alloca, save and restore the
frame pointer around the call. This saves stack space, but
also is required if this inline is being done between two
pushes. */
if (FUNCTION_FLAGS (header) & FUNCTION_FLAGS_CALLS_ALLOCA)
emit_stack_save (SAVE_BLOCK, &stack_save, NULL_RTX);
/* Now copy the insns one by one. Do this in two passes, first the insns and
then their REG_NOTES, just like save_for_inline. */
@ -1868,6 +1876,10 @@ expand_inline_function (fndecl, parms, target, ignore, type, structure_value_add
if (local_return_label)
emit_label (local_return_label);
/* Restore the stack pointer if we saved it above. */
if (FUNCTION_FLAGS (header) & FUNCTION_FLAGS_CALLS_ALLOCA)
emit_stack_restore (SAVE_BLOCK, stack_save, NULL_RTX);
/* Make copies of the decls of the symbols in the inline function, so that
the copies of the variables get declared in the current function. Set
up things so that lookup_static_chain knows that to interpret registers