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c-common.h (DECL_C_HARD_REGISTER): New.

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* c-common.h (DECL_C_HARD_REGISTER): New.
        * c-decl.c (finish_decl): Set it for asm register variables.
        * c-semantics.c (emit_local_var): Test it when instantiating one.

From-SVN: r37748
This commit is contained in:
Richard Henderson 2000-11-25 16:40:46 -08:00 committed by Richard Henderson
parent a17a58505d
commit 3645c4dc1c
4 changed files with 17 additions and 4 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2000-11-25 Richard Henderson <rth@redhat.com>
* c-common.h (DECL_C_HARD_REGISTER): New.
* c-decl.c (finish_decl): Set it for asm register variables.
* c-semantics.c (emit_local_var): Test it when instantiating one.
2000-11-25 Richard Henderson <rth@redhat.com>
* c-decl.c (c_expand_body): Use DECL_SOURCE_LINE rather than

4
gcc/c-common.h
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@ -686,6 +686,10 @@ extern int anon_aggr_type_p PARAMS ((tree));
#define CLEAR_DECL_C_BIT_FIELD(NODE) \
(DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0)
/* In a VAR_DECL, nonzero if the decl is a register variable with
an explicit asm specification. */
#define DECL_C_HARD_REGISTER(DECL) DECL_LANG_FLAG_4 (VAR_DECL_CHECK (DECL))
extern void emit_local_var PARAMS ((tree));
extern void make_rtl_for_local_static PARAMS ((tree));
extern tree expand_cond PARAMS ((tree));

5
gcc/c-decl.c
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@ -3765,7 +3765,10 @@ finish_decl (decl, init, asmspec_tree)
else
{
if (asmspec)
DECL_ASSEMBLER_NAME (decl) = get_identifier (asmspec);
{
DECL_ASSEMBLER_NAME (decl) = get_identifier (asmspec);
DECL_C_HARD_REGISTER (decl) = 1;
}
add_decl_stmt (decl);
}

6
gcc/c-semantics.c
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@ -313,9 +313,9 @@ emit_local_var (decl)
/* Create RTL for this variable. */
if (!DECL_RTL (decl))
{
if (DECL_ASSEMBLER_NAME (decl) != DECL_NAME (decl))
/* The user must have specified an assembler name for this
variable. Set that up now. */
if (DECL_C_HARD_REGISTER (decl))
/* The user specified an assembler name for this variable.
Set that up now. */
rest_of_decl_compilation
(decl, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
/*top_level=*/0, /*at_end=*/0);