diff options
author | Richard Henderson <rth@redhat.com> | 2003-04-17 02:59:32 -0700 |
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committer | Richard Henderson <rth@gcc.gnu.org> | 2003-04-17 02:59:32 -0700 |
commit | 114278e7115aac1d32cd465a272f27e80a0e4dff (patch) | |
tree | 23abe5b718221fe052756c850a97c0fffeb185ae /gcc/config/s390 | |
parent | e95ef1878f06e85f88073db03b7677f3c2c640f8 (diff) | |
download | gcc-114278e7115aac1d32cd465a272f27e80a0e4dff.zip gcc-114278e7115aac1d32cd465a272f27e80a0e4dff.tar.gz gcc-114278e7115aac1d32cd465a272f27e80a0e4dff.tar.bz2 |
s390.c (SYMBOL_FLAG_ALIGN1): New.
* config/s390/s390.c (SYMBOL_FLAG_ALIGN1): New.
(tls_model_chars): Remove.
(larl_operand): Use SYMBOL_REF_FLAGS.
(tls_symbolic_operand): Use SYMBOL_REF_TLS_MODEL.
(legitimize_pic_address): Use SYMBOL_REF_LOCAL_P.
(s390_output_mi_thunk): Likewise.
(s390_emit_prologue): Set SYMBOL_FLAG_LOCAL as needed.
(s390_function_profiler): Likewise.
(s390_encode_section_info): Use default_encode_section_info
and SYMBOL_FLAG_ALIGN1.
(s390_strip_name_encoding): Remove.
* config/s390/s390.h (ASM_OUTPUT_LABELREF): Remove.
* config/s390/s390.md (call, call_value): Use SYMBOL_REF_LOCAL_P.
(builtin_setjmp_receiver): Set SYMBOL_FLAG_LOCAL as needed.
From-SVN: r65734
Diffstat (limited to 'gcc/config/s390')
-rw-r--r-- | gcc/config/s390/s390.c | 151 | ||||
-rw-r--r-- | gcc/config/s390/s390.h | 4 | ||||
-rw-r--r-- | gcc/config/s390/s390.md | 6 |
3 files changed, 30 insertions, 131 deletions
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index 80e030e..18a7bcc 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -50,11 +50,14 @@ Boston, MA 02111-1307, USA. */ #include "langhooks.h" #include "optabs.h" +/* Machine-specific symbol_ref flags. */ +#define SYMBOL_FLAG_ALIGN1 (SYMBOL_FLAG_MACH_DEP << 0) + + static bool s390_assemble_integer PARAMS ((rtx, unsigned int, int)); static void s390_select_rtx_section PARAMS ((enum machine_mode, rtx, unsigned HOST_WIDE_INT)); static void s390_encode_section_info PARAMS ((tree, int)); -static const char *s390_strip_name_encoding PARAMS ((const char *)); static bool s390_cannot_force_const_mem PARAMS ((rtx)); static rtx s390_delegitimize_address PARAMS ((rtx)); static void s390_init_builtins PARAMS ((void)); @@ -89,8 +92,6 @@ static int s390_address_cost PARAMS ((rtx)); #undef TARGET_ENCODE_SECTION_INFO #define TARGET_ENCODE_SECTION_INFO s390_encode_section_info -#undef TARGET_STRIP_NAME_ENCODING -#define TARGET_STRIP_NAME_ENCODING s390_strip_name_encoding #ifdef HAVE_AS_TLS #undef TARGET_HAVE_TLS @@ -135,9 +136,6 @@ static int s390_sr_alias_set = 0; emitted. */ rtx s390_compare_op0, s390_compare_op1; -/* The encoding characters for the four TLS models present in ELF. */ -static char const tls_model_chars[] = " GLil"; - /* Structure used to hold the components of a S/390 memory address. A legitimate address on S/390 is of the general form @@ -1050,12 +1048,10 @@ larl_operand (op, mode) /* Allow labels and local symbols. */ if (GET_CODE (op) == LABEL_REF) return 1; - if (GET_CODE (op) == SYMBOL_REF - && XSTR (op, 0)[0] != '@' - && !tls_symbolic_operand (op) - && (!flag_pic || SYMBOL_REF_FLAG (op) - || CONSTANT_POOL_ADDRESS_P (op))) - return 1; + if (GET_CODE (op) == SYMBOL_REF) + return ((SYMBOL_REF_FLAGS (op) & SYMBOL_FLAG_ALIGN1) == 0 + && SYMBOL_REF_TLS_MODEL (op) == 0 + && (!flag_pic || SYMBOL_REF_LOCAL_P (op))); /* Everything else must have a CONST, so strip it. */ if (GET_CODE (op) != CONST) @@ -1074,12 +1070,10 @@ larl_operand (op, mode) /* Labels and local symbols allowed here as well. */ if (GET_CODE (op) == LABEL_REF) return 1; - if (GET_CODE (op) == SYMBOL_REF - && XSTR (op, 0)[0] != '@' - && !tls_symbolic_operand (op) - && (!flag_pic || SYMBOL_REF_FLAG (op) - || CONSTANT_POOL_ADDRESS_P (op))) - return 1; + if (GET_CODE (op) == SYMBOL_REF) + return ((SYMBOL_REF_FLAGS (op) & SYMBOL_FLAG_ALIGN1) == 0 + && SYMBOL_REF_TLS_MODEL (op) == 0 + && (!flag_pic || SYMBOL_REF_LOCAL_P (op))); /* Now we must have a @GOTENT offset or @PLT stub or an @INDNTPOFF TLS offset. */ @@ -1320,15 +1314,9 @@ int tls_symbolic_operand (op) register rtx op; { - const char *symbol_str; - if (GET_CODE (op) != SYMBOL_REF) return 0; - symbol_str = XSTR (op, 0); - - if (symbol_str[0] != '%') - return 0; - return strchr (tls_model_chars, symbol_str[1]) - tls_model_chars; + return SYMBOL_REF_TLS_MODEL (op); } /* Return true if OP is a load multiple operation. It is known to be a @@ -2159,7 +2147,7 @@ s390_load_address (dst, src) 2. Static data references, constant pool addresses, and code labels compute the address as an offset from the GOT, whose base is in - the PIC reg. Static data objects have SYMBOL_REF_FLAG set to + the PIC reg. Static data objects have SYMBOL_FLAG_LOCAL set to differentiate them from global data objects. The returned address is the PIC reg + an unspec constant. @@ -2176,9 +2164,7 @@ legitimize_pic_address (orig, reg) rtx base; if (GET_CODE (addr) == LABEL_REF - || (GET_CODE (addr) == SYMBOL_REF - && (SYMBOL_REF_FLAG (addr) - || CONSTANT_POOL_ADDRESS_P (addr)))) + || (GET_CODE (addr) == SYMBOL_REF && SYMBOL_REF_LOCAL_P (addr))) { /* This is a local symbol. */ if (TARGET_64BIT && larl_operand (addr, VOIDmode)) @@ -2330,9 +2316,7 @@ legitimize_pic_address (orig, reg) /* Check first to see if this is a constant offset from a local symbol reference. */ if ((GET_CODE (op0) == LABEL_REF - || (GET_CODE (op0) == SYMBOL_REF - && (SYMBOL_REF_FLAG (op0) - || CONSTANT_POOL_ADDRESS_P (op0)))) + || (GET_CODE (op0) == SYMBOL_REF && SYMBOL_REF_LOCAL_P (op0))) && GET_CODE (op1) == CONST_INT) { if (TARGET_64BIT && larl_operand (op0, VOIDmode)) @@ -5485,7 +5469,7 @@ s390_emit_prologue () if (flag_pic && regs_ever_live[PIC_OFFSET_TABLE_REGNUM]) { rtx got_symbol = gen_rtx_SYMBOL_REF (Pmode, "_GLOBAL_OFFSET_TABLE_"); - SYMBOL_REF_FLAG (got_symbol) = 1; + SYMBOL_REF_FLAGS (got_symbol) = SYMBOL_FLAG_LOCAL; if (TARGET_64BIT) { @@ -6354,7 +6338,7 @@ s390_function_profiler (file, labelno) op[2] = gen_rtx_REG (Pmode, 1); op[3] = gen_rtx_SYMBOL_REF (Pmode, label); - SYMBOL_REF_FLAG (op[3]) = 1; + SYMBOL_REF_FLAGS (op[3]) = SYMBOL_FLAG_LOCAL; op[4] = gen_rtx_SYMBOL_REF (Pmode, "_mcount"); if (flag_pic) @@ -6419,101 +6403,20 @@ s390_select_rtx_section (mode, x, align) } /* Encode symbol attributes (local vs. global, tls model) of a SYMBOL_REF - into its name and SYMBOL_REF_FLAG. */ + into its SYMBOL_REF_FLAGS. */ static void s390_encode_section_info (decl, first) tree decl; - int first ATTRIBUTE_UNUSED; + int first; { - bool local_p = (*targetm.binds_local_p) (decl); - rtx rtl, symbol; + default_encode_section_info (decl, first); - rtl = DECL_P (decl) ? DECL_RTL (decl) : TREE_CST_RTL (decl); - if (GET_CODE (rtl) != MEM) - return; - symbol = XEXP (rtl, 0); - if (GET_CODE (symbol) != SYMBOL_REF) - return; - - /* When using PIC, SYMBOL_REF_FLAG marks non-global symbols - that can be accessed directly. */ - if (flag_pic) - SYMBOL_REF_FLAG (symbol) = local_p; - - /* Encode thread-local data with %[GLil] for "global dynamic", - "local dynamic", "initial exec" or "local exec" TLS models, - respectively. */ - - if (TREE_CODE (decl) == VAR_DECL && DECL_THREAD_LOCAL (decl)) - { - const char *symbol_str = XSTR (symbol, 0); - char *newstr; - size_t len; - enum tls_model kind = decl_tls_model (decl); - - if (!flag_pic) - { - /* We don't allow non-pic code for shared libraries, - so don't generate GD/LD TLS models for non-pic code. */ - switch (kind) - { - case TLS_MODEL_GLOBAL_DYNAMIC: - kind = TLS_MODEL_INITIAL_EXEC; break; - case TLS_MODEL_LOCAL_DYNAMIC: - kind = TLS_MODEL_LOCAL_EXEC; break; - default: - break; - } - } - - if (symbol_str[0] == '%') - { - if (symbol_str[1] == tls_model_chars[kind]) - return; - symbol_str += 2; - } - len = strlen (symbol_str) + 1; - newstr = alloca (len + 2); - - newstr[0] = '%'; - newstr[1] = tls_model_chars[kind]; - memcpy (newstr + 2, symbol_str, len); - - XSTR (symbol, 0) = ggc_alloc_string (newstr, len + 2 - 1); - } - - /* If a variable has a forced alignment to < 2 bytes, mark it - with '@' to prevent it from being used as LARL operand. */ - - else if (TREE_CODE (decl) == VAR_DECL - && DECL_USER_ALIGN (decl) && DECL_ALIGN (decl) < 16 - && XSTR (symbol, 0)[0] != '@') - { - const char *symbol_str = XSTR (symbol, 0); - size_t len = strlen (symbol_str) + 1; - char *newstr = alloca (len + 1); - - newstr[0] = '@'; - memcpy (newstr + 1, symbol_str, len); - - XSTR (symbol, 0) = ggc_alloc_string (newstr, len + 1 - 1); - } -} - -/* Undo the above when printing symbol names. */ - -static const char * -s390_strip_name_encoding (str) - const char *str; -{ - if (str[0] == '%') - str += 2; - if (str[0] == '@') - str += 1; - if (str[0] == '*') - str += 1; - return str; + /* If a variable has a forced alignment to < 2 bytes, mark it with + SYMBOL_FLAG_ALIGN1 to prevent it from being used as LARL operand. */ + if (TREE_CODE (decl) == VAR_DECL + && DECL_USER_ALIGN (decl) && DECL_ALIGN (decl) < 16) + SYMBOL_REF_FLAGS (XEXP (DECL_RTL (decl), 0)) |= SYMBOL_FLAG_ALIGN1; } /* Output thunk to FILE that implements a C++ virtual function call (with @@ -6534,7 +6437,7 @@ s390_output_mi_thunk (file, thunk, delta, vcall_offset, function) /* Operand 0 is the target function. */ op[0] = XEXP (DECL_RTL (function), 0); - if (flag_pic && !SYMBOL_REF_FLAG (op[0])) + if (flag_pic && !SYMBOL_REF_LOCAL_P (op[0])) { op[0] = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, op[0]), 113); op[0] = gen_rtx_CONST (Pmode, op[0]); diff --git a/gcc/config/s390/s390.h b/gcc/config/s390/s390.h index 15dc45c..11926f9 100644 --- a/gcc/config/s390/s390.h +++ b/gcc/config/s390/s390.h @@ -917,10 +917,6 @@ extern int flag_pic; #define ASM_OUTPUT_SKIP(FILE, SIZE) \ fprintf ((FILE), "\t.set\t.,.+%u\n", (SIZE)) -/* Output a reference to a user-level label named NAME. */ -#define ASM_OUTPUT_LABELREF(FILE, NAME) \ - asm_fprintf ((FILE), "%U%s", (*targetm.strip_name_encoding) (NAME)) - /* The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */ #define LOCAL_LABEL_PREFIX "." diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md index 5d632e7..88f0dcd 100644 --- a/gcc/config/s390/s390.md +++ b/gcc/config/s390/s390.md @@ -6256,7 +6256,7 @@ /* When calling a global routine in PIC mode, we must replace the symbol itself with the PLT stub. */ - if (flag_pic && !SYMBOL_REF_FLAG (sym)) + if (flag_pic && !SYMBOL_REF_LOCAL_P (sym)) { sym = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, sym), 113); sym = gen_rtx_CONST (Pmode, sym); @@ -6375,7 +6375,7 @@ /* When calling a global routine in PIC mode, we must replace the symbol itself with the PLT stub. */ - if (flag_pic && !SYMBOL_REF_FLAG (sym)) + if (flag_pic && !SYMBOL_REF_LOCAL_P (sym)) { sym = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, sym), 113); sym = gen_rtx_CONST (Pmode, sym); @@ -6720,7 +6720,7 @@ { rtx gotreg = gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM); rtx got = gen_rtx_SYMBOL_REF (Pmode, \"_GLOBAL_OFFSET_TABLE_\"); - SYMBOL_REF_FLAG (got) = 1; + SYMBOL_REF_FLAGS (got) = SYMBOL_FLAG_LOCAL; emit_move_insn (gotreg, got); emit_insn (gen_rtx_USE (VOIDmode, gotreg)); |