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| author | Richard Kenner <kenner@gcc.gnu.org> | 1997-08-02 13:18:18 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1997-08-02 13:18:18 -0400 |
| commit | 86fa911a16e131d69d9db7e6a9f5e63693f5aa09 (patch) | |
| tree | e4a150009c1f994f43dfb15acd60e1bf56793033 /gcc | |
| parent | 151b783bcaefa162d17c890307a545af171959bf (diff) | |
| download | gcc-86fa911a16e131d69d9db7e6a9f5e63693f5aa09.zip gcc-86fa911a16e131d69d9db7e6a9f5e63693f5aa09.tar.gz gcc-86fa911a16e131d69d9db7e6a9f5e63693f5aa09.tar.bz2 | |
(put_var_into_stack, assign_parms): If -fcheck-memory-usage, set the
rights of pushed variable.
From-SVN: r14614
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/function.c | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/gcc/function.c b/gcc/function.c index db7d3ea..d12db1e 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -1381,6 +1381,15 @@ put_var_into_stack (decl) if (GET_CODE (XEXP (reg, 0)) == PLUS) XEXP (reg, 0) = copy_rtx (XEXP (reg, 0)); } + else + return; + + if (flag_check_memory_usage) + emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3, + XEXP (reg, 0), ptr_mode, + GEN_INT (GET_MODE_SIZE (GET_MODE (reg))), + TYPE_MODE (sizetype), + GEN_INT (MEMORY_USE_RW), QImode); } /* Subroutine of put_var_into_stack. This puts a single pseudo reg REG @@ -3686,6 +3695,18 @@ assign_parms (fndecl, second_time) else stack_parm = gen_rtx (MEM, nominal_mode, gen_rtx (PLUS, Pmode, + if (flag_check_memory_usage) + { + push_to_sequence (conversion_insns); + emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3, + XEXP (stack_parm, 0), ptr_mode, + GEN_INT (int_size_in_bytes + (TREE_TYPE (parm))), + TYPE_MODE (sizetype), + GEN_INT (MEMORY_USE_RW), QImode); + conversion_insns = get_insns (); + end_sequence (); + } internal_arg_pointer, offset_rtx)); /* If this is a memory ref that contains aggregate components, @@ -3906,6 +3927,12 @@ assign_parms (fndecl, second_time) store_expr (parm, copy, 0); emit_move_insn (parmreg, XEXP (copy, 0)); + if (flag_check_memory_usage) + emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3, + XEXP (copy, 0), ptr_mode, + GEN_INT (int_size_in_bytes (type)), + TYPE_MODE (sizetype), + GEN_INT (MEMORY_USE_RW), QImode); conversion_insns = get_insns (); did_conversion = 1; end_sequence (); @@ -4055,7 +4082,19 @@ assign_parms (fndecl, second_time) emit_move_insn (validize_mem (stack_parm), validize_mem (entry_parm)); } + if (flag_check_memory_usage) + { + push_to_sequence (conversion_insns); + emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3, + XEXP (stack_parm, 0), ptr_mode, + GEN_INT (GET_MODE_SIZE (GET_MODE + (entry_parm))), + TYPE_MODE (sizetype), + GEN_INT (MEMORY_USE_RW), QImode); + conversion_insns = get_insns (); + end_sequence (); + } DECL_RTL (parm) = stack_parm; } @@ -4110,7 +4149,7 @@ assign_parms (fndecl, second_time) = (stack_args_size.var == 0 ? GEN_INT (-stack_args_size.constant) : expand_expr (size_binop (MINUS_EXPR, stack_args_size.var, size_int (-stack_args_size.constant)), - NULL_RTX, VOIDmode, 0)); + NULL_RTX, VOIDmode, EXPAND_MEMORY_USE_BAD)); #else current_function_arg_offset_rtx = ARGS_SIZE_RTX (stack_args_size); #endif @@ -5403,7 +5442,8 @@ expand_function_start (subr, parms_have_cleanups) /* Evaluate now the sizes of any types declared among the arguments. */ for (tem = nreverse (get_pending_sizes ()); tem; tem = TREE_CHAIN (tem)) { - expand_expr (TREE_VALUE (tem), const0_rtx, VOIDmode, 0); + expand_expr (TREE_VALUE (tem), const0_rtx, VOIDmode, + EXPAND_MEMORY_USE_BAD); /* Flush the queue in case this parameter declaration has side-effects. */ emit_queue (); |