diff options
Diffstat (limited to 'gcc/varasm.c')
| -rw-r--r-- | gcc/varasm.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/varasm.c b/gcc/varasm.c index bcb5b114238..9f2f0a6f957 100644 --- a/gcc/varasm.c +++ b/gcc/varasm.c @@ -7261,4 +7261,31 @@ default_elf_asm_output_external (FILE *file ATTRIBUTE_UNUSED, maybe_assemble_visibility (decl); } +/* Create a DEBUG_EXPR_DECL / DEBUG_EXPR pair from RTL expression + EXP. */ +rtx +make_debug_expr_from_rtl (const_rtx exp) +{ + tree ddecl = make_node (DEBUG_EXPR_DECL), type; + enum machine_mode mode = GET_MODE (exp); + rtx dval; + + DECL_ARTIFICIAL (ddecl) = 1; + if (REG_P (exp) && REG_EXPR (exp)) + type = TREE_TYPE (REG_EXPR (exp)); + else if (MEM_P (exp) && MEM_EXPR (exp)) + type = TREE_TYPE (MEM_EXPR (exp)); + else + type = NULL_TREE; + if (type && TYPE_MODE (type) == mode) + TREE_TYPE (ddecl) = type; + else + TREE_TYPE (ddecl) = lang_hooks.types.type_for_mode (mode, 1); + DECL_MODE (ddecl) = mode; + dval = gen_rtx_DEBUG_EXPR (mode); + DEBUG_EXPR_TREE_DECL (dval) = ddecl; + SET_DECL_RTL (ddecl, dval); + return dval; +} + #include "gt-varasm.h" |