diff options
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/gcc/function.c b/gcc/function.c index 450c400..0a6ed73 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -1420,7 +1420,14 @@ put_var_into_stack (decl) /* Change the CONCAT into a combined MEM for both parts. */ PUT_CODE (reg, MEM); + + /* set_mem_attributes uses DECL_RTL to avoid re-generating of + already computed alias sets. Here we want to re-generate. */ + if (DECL_P (decl)) + SET_DECL_RTL (decl, NULL); set_mem_attributes (reg, decl, 1); + if (DECL_P (decl)) + SET_DECL_RTL (decl, reg); /* The two parts are in memory order already. Use the lower parts address as ours. */ @@ -4688,10 +4695,10 @@ assign_parms (fndecl) appropriately. */ if (passed_pointer) { - SET_DECL_RTL (parm, - gen_rtx_MEM (TYPE_MODE (TREE_TYPE (passed_type)), - parmreg)); - set_mem_attributes (DECL_RTL (parm), parm, 1); + rtx x = gen_rtx_MEM (TYPE_MODE (TREE_TYPE (passed_type)), + parmreg); + set_mem_attributes (x, parm, 1); + SET_DECL_RTL (parm, x); } else { @@ -5030,11 +5037,10 @@ assign_parms (fndecl) if (parm == function_result_decl) { tree result = DECL_RESULT (fndecl); + rtx x = gen_rtx_MEM (DECL_MODE (result), DECL_RTL (parm)); - SET_DECL_RTL (result, - gen_rtx_MEM (DECL_MODE (result), DECL_RTL (parm))); - - set_mem_attributes (DECL_RTL (result), result, 1); + set_mem_attributes (x, result, 1); + SET_DECL_RTL (result, x); } } @@ -6451,11 +6457,9 @@ expand_function_start (subr, parms_have_cleanups) } if (value_address) { - SET_DECL_RTL (DECL_RESULT (subr), - gen_rtx_MEM (DECL_MODE (DECL_RESULT (subr)), - value_address)); - set_mem_attributes (DECL_RTL (DECL_RESULT (subr)), - DECL_RESULT (subr), 1); + rtx x = gen_rtx_MEM (DECL_MODE (DECL_RESULT (subr)), value_address); + set_mem_attributes (x, DECL_RESULT (subr), 1); + SET_DECL_RTL (DECL_RESULT (subr), x); } } else if (DECL_MODE (DECL_RESULT (subr)) == VOIDmode) |