#include "tm_p.h"
#include "target.h"
#include "target-def.h"
+#include "toplev.h"
#ifdef OSF_OS
int ns32k_num_files = 0;
FRAME_POINTER_REG, STACK_POINTER_REG
};
-const char *const ns32k_out_reg_names[] = OUTPUT_REGISTER_NAMES;
+static const char *const ns32k_out_reg_names[] = OUTPUT_REGISTER_NAMES;
static rtx gen_indexed_expr PARAMS ((rtx, rtx, rtx));
static const char *singlemove_string PARAMS ((rtx *));
static void move_tail PARAMS ((rtx[], int, int));
-static int ns32k_valid_type_attribute_p PARAMS ((tree, tree, tree, tree));
+static tree ns32k_handle_fntype_attribute PARAMS ((tree *, tree, tree, int, bool *));
+const struct attribute_spec ns32k_attribute_table[];
+static void ns32k_output_function_prologue PARAMS ((FILE *, HOST_WIDE_INT));
+static void ns32k_output_function_epilogue PARAMS ((FILE *, HOST_WIDE_INT));
\f
/* Initialize the GCC target structure. */
-#undef TARGET_VALID_TYPE_ATTRIBUTE
-#define TARGET_VALID_TYPE_ATTRIBUTE ns32k_valid_type_attribute_p
+#undef TARGET_ATTRIBUTE_TABLE
+#define TARGET_ATTRIBUTE_TABLE ns32k_attribute_table
-struct gcc_target target = TARGET_INITIALIZER;
+#undef TARGET_ASM_ALIGNED_HI_OP
+#define TARGET_ASM_ALIGNED_HI_OP "\t.word\t"
+
+#ifdef ENCORE_ASM
+#undef TARGET_ASM_ALIGNED_SI_OP
+#define TARGET_ASM_ALIGNED_SI_OP "\t.double\t"
+#endif
+
+#undef TARGET_ASM_FUNCTION_PROLOGUE
+#define TARGET_ASM_FUNCTION_PROLOGUE ns32k_output_function_prologue
+#undef TARGET_ASM_FUNCTION_EPILOGUE
+#define TARGET_ASM_FUNCTION_EPILOGUE ns32k_output_function_epilogue
+
+struct gcc_target targetm = TARGET_INITIALIZER;
\f
+/* Generate the assembly code for function entry. FILE is a stdio
+ stream to output the code to. SIZE is an int: how many units of
+ temporary storage to allocate.
+
+ Refer to the array `regs_ever_live' to determine which registers to
+ save; `regs_ever_live[I]' is nonzero if register number I is ever
+ used in the function. This function is responsible for knowing
+ which registers should not be saved even if used. */
+
+/*
+ * The function prologue for the ns32k is fairly simple.
+ * If a frame pointer is needed (decided in reload.c ?) then
+ * we need assembler of the form
+ *
+ * # Save the oldframe pointer, set the new frame pointer, make space
+ * # on the stack and save any general purpose registers necessary
+ *
+ * enter [<general purpose regs to save>], <local stack space>
+ *
+ * movf fn, tos # Save any floating point registers necessary
+ * .
+ * .
+ *
+ * If a frame pointer is not needed we need assembler of the form
+ *
+ * # Make space on the stack
+ *
+ * adjspd <local stack space + 4>
+ *
+ * # Save any general purpose registers necessary
+ *
+ * save [<general purpose regs to save>]
+ *
+ * movf fn, tos # Save any floating point registers necessary
+ * .
+ * .
+ */
+
+#if !defined (MERLIN_TARGET) && !defined (UTEK_ASM)
+
+#if defined(IMMEDIATE_PREFIX) && IMMEDIATE_PREFIX
+#define ADJSP(FILE, N) \
+ fprintf (FILE, "\tadjspd %c%d\n", IMMEDIATE_PREFIX, (N))
+#else
+#define ADJSP(FILE, N) \
+ fprintf (FILE, "\tadjspd %d\n", (N))
+#endif
+
+static void
+ns32k_output_function_prologue (file, size)
+ FILE *file;
+ HOST_WIDE_INT size;
+{
+ register int regno, g_regs_used = 0;
+ int used_regs_buf[8], *bufp = used_regs_buf;
+ int used_fregs_buf[17], *fbufp = used_fregs_buf;
+
+ for (regno = R0_REGNUM; regno < F0_REGNUM; regno++)
+ if (regs_ever_live[regno]
+ && ! call_used_regs[regno])
+ {
+ *bufp++ = regno; g_regs_used++;
+ }
+ *bufp = -1;
+
+ for (; regno < FRAME_POINTER_REGNUM; regno++)
+ if (regs_ever_live[regno] && !call_used_regs[regno])
+ {
+ *fbufp++ = regno;
+ }
+ *fbufp = -1;
+
+ bufp = used_regs_buf;
+ if (frame_pointer_needed)
+ fprintf (file, "\tenter [");
+ else
+ {
+ if (size)
+ ADJSP (file, size + 4);
+ if (g_regs_used && g_regs_used > 4)
+ fprintf (file, "\tsave [");
+ else
+ {
+ while (*bufp >= 0)
+ fprintf (file, "\tmovd r%d,tos\n", *bufp++);
+ g_regs_used = 0;
+ }
+ }
+
+ while (*bufp >= 0)
+ {
+ fprintf (file, "r%d", *bufp++);
+ if (*bufp >= 0)
+ fputc (',', file);
+ }
+
+ if (frame_pointer_needed)
+ fprintf (file, "],%d\n", size);
+ else if (g_regs_used)
+ fprintf (file, "]\n");
+
+ fbufp = used_fregs_buf;
+ while (*fbufp >= 0)
+ {
+ if ((*fbufp & 1) || (fbufp[0] != fbufp[1] - 1))
+ fprintf (file, "\tmovf %s,tos\n", ns32k_out_reg_names[*fbufp++]);
+ else
+ {
+ fprintf (file, "\tmovl %s,tos\n",
+ ns32k_out_reg_names[fbufp[0]]);
+ fbufp += 2;
+ }
+ }
+
+ if (flag_pic && current_function_uses_pic_offset_table)
+ {
+ fprintf (file, "\tsprd sb,tos\n");
+ if (TARGET_REGPARM)
+ {
+ fprintf (file, "\taddr __GLOBAL_OFFSET_TABLE_(pc),tos\n");
+ fprintf (file, "\tlprd sb,tos\n");
+ }
+ else
+ {
+ fprintf (file, "\taddr __GLOBAL_OFFSET_TABLE_(pc),r0\n");
+ fprintf (file, "\tlprd sb,r0\n");
+ }
+ }
+}
+
+#else /* MERLIN_TARGET || UTEK_ASM */
+
+/* This differs from the standard one above in printing a bitmask
+ rather than a register list in the enter or save instruction. */
+
+static void
+ns32k_output_function_prologue (file, size)
+ FILE *file;
+ HOST_WIDE_INT size;
+{
+ register int regno, g_regs_used = 0;
+ int used_regs_buf[8], *bufp = used_regs_buf;
+ int used_fregs_buf[8], *fbufp = used_fregs_buf;
+
+ for (regno = 0; regno < 8; regno++)
+ if (regs_ever_live[regno]
+ && ! call_used_regs[regno])
+ {
+ *bufp++ = regno; g_regs_used++;
+ }
+ *bufp = -1;
+
+ for (; regno < 16; regno++)
+ if (regs_ever_live[regno] && !call_used_regs[regno]) {
+ *fbufp++ = regno;
+ }
+ *fbufp = -1;
+
+ bufp = used_regs_buf;
+ if (frame_pointer_needed)
+ fprintf (file, "\tenter ");
+ else if (g_regs_used)
+ fprintf (file, "\tsave ");
+
+ if (frame_pointer_needed || g_regs_used)
+ {
+ char mask = 0;
+ while (*bufp >= 0)
+ mask |= 1 << *bufp++;
+ fprintf (file, "$0x%x", (int) mask & 0xff);
+ }
+
+ if (frame_pointer_needed)
+#ifdef UTEK_ASM
+ fprintf (file, ",$%d\n", size);
+#else
+ fprintf (file, ",%d\n", size);
+#endif
+ else if (g_regs_used)
+ fprintf (file, "\n");
+
+ fbufp = used_fregs_buf;
+ while (*fbufp >= 0)
+ {
+ if ((*fbufp & 1) || (fbufp[0] != fbufp[1] - 1))
+ fprintf (file, "\tmovf f%d,tos\n", *fbufp++ - 8);
+ else
+ {
+ fprintf (file, "\tmovl f%d,tos\n", fbufp[0] - 8);
+ fbufp += 2;
+ }
+ }
+}
+
+#endif /* MERLIN_TARGET || UTEK_ASM */
+
+/* This function generates the assembly code for function exit,
+ on machines that need it.
+
+ The function epilogue should not depend on the current stack pointer,
+ if EXIT_IGNORE_STACK is nonzero. That doesn't apply here.
+
+ If a frame pointer is needed (decided in reload.c ?) then
+ we need assembler of the form
+
+ movf tos, fn # Restore any saved floating point registers
+ .
+ .
+
+ # Restore any saved general purpose registers, restore the stack
+ # pointer from the frame pointer, restore the old frame pointer.
+ exit [<general purpose regs to save>]
+
+ If a frame pointer is not needed we need assembler of the form
+ # Restore any general purpose registers saved
+
+ movf tos, fn # Restore any saved floating point registers
+ .
+ .
+ .
+ restore [<general purpose regs to save>]
+
+ # reclaim space allocated on stack
+
+ adjspd <-(local stack space + 4)> */
+
+#if !defined (MERLIN_TARGET) && !defined (UTEK_ASM)
+
+static void
+ns32k_output_function_epilogue (file, size)
+ FILE *file;
+ HOST_WIDE_INT size;
+{
+ register int regno, g_regs_used = 0, f_regs_used = 0;
+ int used_regs_buf[8], *bufp = used_regs_buf;
+ int used_fregs_buf[17], *fbufp = used_fregs_buf;
+
+ if (flag_pic && current_function_uses_pic_offset_table)
+ fprintf (file, "\tlprd sb,tos\n");
+
+ *fbufp++ = -2;
+ for (regno = F0_REGNUM; regno < FRAME_POINTER_REGNUM; regno++)
+ if (regs_ever_live[regno] && !call_used_regs[regno])
+ {
+ *fbufp++ = regno; f_regs_used++;
+ }
+ fbufp--;
+
+ for (regno = 0; regno < F0_REGNUM; regno++)
+ if (regs_ever_live[regno]
+ && ! call_used_regs[regno])
+ {
+ *bufp++ = regno; g_regs_used++;
+ }
+
+ while (fbufp > used_fregs_buf)
+ {
+ if ((*fbufp & 1) && fbufp[0] == fbufp[-1] + 1)
+ {
+ fprintf (file, "\tmovl tos,%s\n",
+ ns32k_out_reg_names[fbufp[-1]]);
+ fbufp -= 2;
+ }
+ else fprintf (file, "\tmovf tos,%s\n", ns32k_out_reg_names[*fbufp--]);
+ }
+
+ if (frame_pointer_needed)
+ fprintf (file, "\texit [");
+ else
+ {
+ if (g_regs_used && g_regs_used > 4)
+ fprintf (file, "\trestore [");
+ else
+ {
+ while (bufp > used_regs_buf)
+ fprintf (file, "\tmovd tos,r%d\n", *--bufp);
+ g_regs_used = 0;
+ }
+ }
+
+ while (bufp > used_regs_buf)
+ {
+ fprintf (file, "r%d", *--bufp);
+ if (bufp > used_regs_buf)
+ fputc (',', file);
+ }
+
+ if (g_regs_used || frame_pointer_needed)
+ fprintf (file, "]\n");
+
+ if (size && !frame_pointer_needed)
+ ADJSP (file, -(size + 4));
+
+ if (current_function_pops_args)
+ fprintf (file, "\tret %d\n", current_function_pops_args);
+ else
+ fprintf (file, "\tret 0\n");
+}
+
+#else /* MERLIN_TARGET || UTEK_ASM */
+
+/* This differs from the standard one above in printing a bitmask
+ rather than a register list in the exit or restore instruction. */
+
+static void
+ns32k_output_function_epilogue (file, size)
+ FILE *file;
+ HOST_WIDE_INT size ATTRIBUTE_UNUSED;
+{
+ register int regno, g_regs_used = 0, f_regs_used = 0;
+ int used_regs_buf[8], *bufp = used_regs_buf;
+ int used_fregs_buf[8], *fbufp = used_fregs_buf;
+
+ *fbufp++ = -2;
+ for (regno = 8; regno < 16; regno++)
+ if (regs_ever_live[regno] && !call_used_regs[regno]) {
+ *fbufp++ = regno; f_regs_used++;
+ }
+ fbufp--;
+
+ for (regno = 0; regno < 8; regno++)
+ if (regs_ever_live[regno]
+ && ! call_used_regs[regno])
+ {
+ *bufp++ = regno; g_regs_used++;
+ }
+
+ while (fbufp > used_fregs_buf)
+ {
+ if ((*fbufp & 1) && fbufp[0] == fbufp[-1] + 1)
+ {
+ fprintf (file, "\tmovl tos,f%d\n", fbufp[-1] - 8);
+ fbufp -= 2;
+ }
+ else fprintf (file, "\tmovf tos,f%d\n", *fbufp-- - 8);
+ }
+
+ if (frame_pointer_needed)
+ fprintf (file, "\texit ");
+ else if (g_regs_used)
+ fprintf (file, "\trestore ");
+
+ if (g_regs_used || frame_pointer_needed)
+ {
+ char mask = 0;
+
+ while (bufp > used_regs_buf)
+ {
+ /* Utek assembler takes care of reversing this */
+ mask |= 1 << *--bufp;
+ }
+ fprintf (file, "$0x%x\n", (int) mask & 0xff);
+ }
+
+#ifdef UTEK_ASM
+ if (current_function_pops_args)
+ fprintf (file, "\tret $%d\n", current_function_pops_args);
+ else
+ fprintf (file, "\tret $0\n");
+#else
+ if (current_function_pops_args)
+ fprintf (file, "\tret %d\n", current_function_pops_args);
+ else
+ fprintf (file, "\tret 0\n");
+#endif
+}
+
+#endif /* MERLIN_TARGET || UTEK_ASM */
+
/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. */
int
hard_regno_mode_ok (regno, mode)
return 0;
}
\f
-/* Return nonzero if IDENTIFIER with arguments ARGS is a valid machine specific
- attribute for TYPE. The attributes in ATTRIBUTES have previously been
- assigned to TYPE. */
-
-static int
-ns32k_valid_type_attribute_p (type, attributes, identifier, args)
- tree type;
- tree attributes ATTRIBUTE_UNUSED;
- tree identifier;
- tree args;
-{
- if (TREE_CODE (type) != FUNCTION_TYPE
- && TREE_CODE (type) != FIELD_DECL
- && TREE_CODE (type) != TYPE_DECL)
- return 0;
+/* Table of machine-specific attributes. */
+const struct attribute_spec ns32k_attribute_table[] =
+{
+ /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */
/* Stdcall attribute says callee is responsible for popping arguments
if they are not variable. */
- if (is_attribute_p ("stdcall", identifier))
- return (args == NULL_TREE);
-
+ { "stdcall", 0, 0, false, true, true, ns32k_handle_fntype_attribute },
/* Cdecl attribute says the callee is a normal C declaration */
- if (is_attribute_p ("cdecl", identifier))
- return (args == NULL_TREE);
+ { "cdecl", 0, 0, false, true, true, ns32k_handle_fntype_attribute },
+ { NULL, 0, 0, false, false, false, NULL }
+};
- return 0;
+/* Handle an attribute requiring a FUNCTION_TYPE, FIELD_DECL or TYPE_DECL;
+ arguments as in struct attribute_spec.handler. */
+static tree
+ns32k_handle_fntype_attribute (node, name, args, flags, no_add_attrs)
+ tree *node;
+ tree name;
+ tree args ATTRIBUTE_UNUSED;
+ int flags ATTRIBUTE_UNUSED;
+ bool *no_add_attrs;
+{
+ if (TREE_CODE (*node) != FUNCTION_TYPE
+ && TREE_CODE (*node) != FIELD_DECL
+ && TREE_CODE (*node) != TYPE_DECL)
+ {
+ warning ("`%s' attribute only applies to functions",
+ IDENTIFIER_POINTER (name));
+ *no_add_attrs = true;
+ }
+
+ return NULL_TREE;
}
\f
{
union { float f; long l; } uu;
uu.f = u.d;
- fprintf (file, "0Fx%08x", uu.l);
+ fprintf (file, "0Fx%08lx", uu.l);
}
#else
fprintf (file, "0f%.20e", u.d);
register FILE *file;
register rtx addr;
{
- static char scales[] = { 'b', 'w', 'd', 0, 'q', };
+ static const char scales[] = { 'b', 'w', 'd', 0, 'q', };
rtx offset, base, indexexp, tmp;
int scale;
extern int flag_pic;
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