From 3645c4dc1cf004887905411ca81590b75c665529 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 25 Nov 2000 16:40:46 -0800 Subject: [PATCH] c-common.h (DECL_C_HARD_REGISTER): New. * 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 --- gcc/ChangeLog | 6 ++++++ gcc/c-common.h | 4 ++++ gcc/c-decl.c | 5 ++++- gcc/c-semantics.c | 6 +++--- 4 files changed, 17 insertions(+), 4 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 33f3d53ba67..e6497ee9d74 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2000-11-25 Richard Henderson + + * 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 * c-decl.c (c_expand_body): Use DECL_SOURCE_LINE rather than diff --git a/gcc/c-common.h b/gcc/c-common.h index b27c76069a8..94c89cfce14 100644 --- a/gcc/c-common.h +++ b/gcc/c-common.h @@ -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)); diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 78068192987..7653479a280 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -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); } diff --git a/gcc/c-semantics.c b/gcc/c-semantics.c index 8988680415e..d5150ba45f4 100644 --- a/gcc/c-semantics.c +++ b/gcc/c-semantics.c @@ -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); -- 2.30.2