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| author | Richard Stallman <rms@gnu.org> | 1993-10-07 18:38:02 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1993-10-07 18:38:02 +0000 |
| commit | 888aa7a977cde28abe81a0b0714683950bbefab2 (patch) | |
| tree | 1de62f41e8b8212a1e892054888772bb7481fc0e /gcc | |
| parent | cbc580f02bff05c3ff0df52e91a7b330f6d166cb (diff) | |
| download | gcc-888aa7a977cde28abe81a0b0714683950bbefab2.zip gcc-888aa7a977cde28abe81a0b0714683950bbefab2.tar.gz gcc-888aa7a977cde28abe81a0b0714683950bbefab2.tar.bz2 | |
(emit_library_call, emit_library_call_value):
Allocate a temp slot if arg must be passed by reference.
From-SVN: r5657
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/calls.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index 3d29430..da23a6f 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -2104,6 +2104,8 @@ emit_library_call (va_alist) args_size.constant = 0; args_size.var = 0; + push_temp_slots (); + for (count = 0; count < nargs; count++) { rtx val = va_arg (p, rtx); @@ -2130,14 +2132,19 @@ emit_library_call (va_alist) && ! (CONSTANT_P (val) && LEGITIMATE_CONSTANT_P (val))) val = force_operand (val, NULL_RTX); - argvec[count].value = val; - argvec[count].mode = mode; - #ifdef FUNCTION_ARG_PASS_BY_REFERENCE if (FUNCTION_ARG_PASS_BY_REFERENCE (args_so_far, mode, NULL_TREE, 1)) - abort (); + { + rtx slot = assign_stack_temp (mode, GET_MODE_SIZE (mode), 0); + emit_move_insn (slot, val); + val = XEXP (slot, 0); + mode = SImode; + } #endif + argvec[count].value = val; + argvec[count].mode = mode; + argvec[count].reg = FUNCTION_ARG (args_so_far, mode, NULL_TREE, 1); if (argvec[count].reg && GET_CODE (argvec[count].reg) == EXPR_LIST) abort (); @@ -2303,6 +2310,8 @@ emit_library_call (va_alist) outmode != VOIDmode ? hard_libcall_value (outmode) : NULL_RTX, old_inhibit_defer_pop + 1, use_insns, no_queue); + pop_temp_slots (); + /* Now restore inhibit_defer_pop to its actual original value. */ OK_DEFER_POP; } @@ -2390,6 +2399,8 @@ emit_library_call_value (va_alist) count = 0; + push_temp_slots (); + /* If there's a structure value address to be passed, either pass it in the special place, or pass it as an extra argument. */ if (mem_value && struct_value_rtx == 0 && ! pcc_struct_value) @@ -2456,14 +2467,19 @@ emit_library_call_value (va_alist) && ! (CONSTANT_P (val) && LEGITIMATE_CONSTANT_P (val))) val = force_operand (val, NULL_RTX); - argvec[count].value = val; - argvec[count].mode = mode; - #ifdef FUNCTION_ARG_PASS_BY_REFERENCE if (FUNCTION_ARG_PASS_BY_REFERENCE (args_so_far, mode, NULL_TREE, 1)) - abort (); + { + rtx slot = assign_stack_temp (mode, GET_MODE_SIZE (mode), 0); + emit_move_insn (slot, val); + val = XEXP (slot, 0); + mode = Pmode; + } #endif + argvec[count].value = val; + argvec[count].mode = mode; + argvec[count].reg = FUNCTION_ARG (args_so_far, mode, NULL_TREE, 1); if (argvec[count].reg && GET_CODE (argvec[count].reg) == EXPR_LIST) abort (); @@ -2651,6 +2667,8 @@ emit_library_call_value (va_alist) /* Now restore inhibit_defer_pop to its actual original value. */ OK_DEFER_POP; + pop_temp_slots (); + /* Copy the value to the right place. */ if (outmode != VOIDmode) { |