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bfin.c (bfin_function_ok_for_sibcall): Handle some edge cases with local functions and TARGET_ID_SHARED_LIBRARY.

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* config/bfin/bfin.c (bfin_function_ok_for_sibcall): Handle some
	edge cases with local functions and TARGET_ID_SHARED_LIBRARY.

From-SVN: r119013
This commit is contained in:
Bernd Schmidt 2006-11-20 12:40:57 +00:00 committed by Bernd Schmidt
parent 9314711904
commit bcbb974df4
2 changed files with 25 additions and 1 deletions
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3
gcc/ChangeLog
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@ -25,6 +25,9 @@
(TARGET_SWITCHES): Add -mleaf-id-shared-library and -msep-data.
* doc/invoke.texi (Blackfin Options): Document new switches.
* config/bfin/bfin.c (bfin_function_ok_for_sibcall): Handle some
edge cases with local functions and TARGET_ID_SHARED_LIBRARY.
2006-11-19 Andrew Pinski <pinskia@gmail.com>
PR rtl-opt/29879

23
gcc/config/bfin/bfin.c
View File

@ -1596,7 +1596,28 @@ bfin_function_ok_for_sibcall (tree decl ATTRIBUTE_UNUSED,
tree exp ATTRIBUTE_UNUSED)
{
e_funkind fkind = funkind (TREE_TYPE (current_function_decl));
return fkind == SUBROUTINE;
if (fkind != SUBROUTINE)
return false;
if (!TARGET_ID_SHARED_LIBRARY || TARGET_SEP_DATA)
return true;
/* When compiling for ID shared libraries, can't sibcall a local function
from a non-local function, because the local function thinks it does
not need to reload P5 in the prologue, but the sibcall wil pop P5 in the
sibcall epilogue, and we end up with the wrong value in P5. */
if (!flag_unit_at_a_time || decl == NULL)
/* Not enough information. */
return false;
{
struct cgraph_local_info *this_func, *called_func;
rtx addr, insn;
this_func = cgraph_local_info (current_function_decl);
called_func = cgraph_local_info (decl);
return !called_func->local || this_func->local;
}
}
/* Emit RTL insns to initialize the variable parts of a trampoline at