From 5e039e6b12f5bc2315fc0824b3d8648463fa3cc8 Mon Sep 17 00:00:00 2001 From: "J\"orn Rennecke" Date: Wed, 24 Apr 2002 22:12:32 +0000 Subject: [PATCH] sh.c (sh_va_arg): If argument was passed by reference, dereference the pointer. * sh.c (sh_va_arg): If argument was passed by reference, dereference the pointer. From-SVN: r52734 --- gcc/ChangeLog | 5 ++++- gcc/config/sh/sh.c | 19 ++++++++++++++++++- 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a4933fe46b9..23175ed3938 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,7 @@ -Wed Apr 24 21:35:11 2002 J"orn Rennecke +Wed Apr 24 21:51:54 2002 J"orn Rennecke + + * sh.c (sh_va_arg): If argument was passed by reference, + dereference the pointer. * sh.h (PIC_OFFSET_TABLE_REGNUM): Conditionalize on flag_pic. diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index d80801b54ee..43c70a29cc5 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -5293,11 +5293,16 @@ sh_va_arg (valist, type) HOST_WIDE_INT size, rsize; tree tmp, pptr_type_node; rtx addr_rtx, r; + rtx result; + int pass_by_ref = MUST_PASS_IN_STACK (TYPE_MODE (type), type); size = int_size_in_bytes (type); rsize = (size + UNITS_PER_WORD - 1) & -UNITS_PER_WORD; pptr_type_node = build_pointer_type (ptr_type_node); + if (pass_by_ref) + type = build_pointer_type (type); + if (! TARGET_SH5 && (TARGET_SH3E || TARGET_SH4) && ! TARGET_HITACHI) { tree f_next_o, f_next_o_limit, f_next_fp, f_next_fp_limit, f_next_stack; @@ -5411,7 +5416,19 @@ sh_va_arg (valist, type) /* ??? In va-sh.h, there had been code to make values larger than size 8 indirect. This does not match the FUNCTION_ARG macros. */ - return std_expand_builtin_va_arg (valist, type); + result = std_expand_builtin_va_arg (valist, type); + if (pass_by_ref) + { +#ifdef POINTERS_EXTEND_UNSIGNED + if (GET_MODE (addr) != Pmode) + addr = convert_memory_address (Pmode, result); +#endif + result = gen_rtx_MEM (ptr_mode, force_reg (Pmode, result)); + set_mem_alias_set (result, get_varargs_alias_set ()); + } + /* ??? expand_builtin_va_arg will also set the alias set of the dereferenced + argument to the varargs alias set. */ + return result; } /* Define the offset between two registers, one to be eliminated, and -- 2.30.2