200x-xx-xx Kazu Hirata <kazu@codesourcery.com> Richard Sandiford <richard@codesourcery.com>
gcc/ 200x-xx-xx Kazu Hirata <kazu@codesourcery.com> Richard Sandiford <richard@codesourcery.com> * config/m68k/m68k-protos.h (m68k_interrupt_function_p): Declare. (m68k_movem_pattern_p, m68k_output_movem): Likewise. (m68k_expand_prologue, m68k_expand_epilogue): Likewise. * config/m68k/m68k.h (EPILOGUE_USES): Define. Treat all registers as being live on exit from an interrupt function. (PRINT_OPERAND_PUNCT_VALID_P): Return true for '?'. * config/m68k/m68k.c (MIN_MOVEM_REGS, MIN_FMOVEM_REGS): New macros. (m68k_frame): Remove reg_rev_mask and fpu_rev_mask. (TARGET_ASM_FUNCTION_PROLOGUE, TARGET_ASM_FUNCTION_EPILOGUE): Delete. (m68k_interrupt_function_p): Globalize. (m68k_compute_frame_layout): Remove reverse mask code. (m68k_emit_movem, m68k_set_frame_related): New functions. (m68k_output_function_prologue): Delete in favor of... (m68k_expand_prologue): ...this new function. (m68k_output_function_epilogue): Delete in favor of... (m68k_expand_epilogue): ...this new function. (m68k_split_offset, m68k_movem_pattern_p, m68k_output_movem): New functions. (print_operand): Handle %?. * config/m68k/m68k.md (UNSPEC_SIN, UNSPEC_COS): Remove excess space. (UNSPEC_GOT, A1_REG, PIC_REG, FP0_REG): New constants. (prologue, epilogue): New patterns. (return): Turn into a define_expand. (*return): New pattern, derived from old "return" pattern. Use rte rather than rts for interrupt functions. Only use rtd if the pop count is nonzero. (*m68k_store_multiple, *m68k_store_multiple_automod): New patterns. (*m68k_load_multiple, *m68k_load_multiple_automod): Likewise. (link, *link, unlink, *unlink, load_got): Likewise. Co-Authored-By: Richard Sandiford <richard@codesourcery.com> From-SVN: r122605
This commit is contained in:
Kazu Hirata
Richard Sandiford
parent
fc2241eb94
commit
a40ed0f310
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@ -1,3 +1,36 @@
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2007-03-06 Kazu Hirata <kazu@codesourcery.com>
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Richard Sandiford <richard@codesourcery.com>
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* config/m68k/m68k-protos.h (m68k_interrupt_function_p): Declare.
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(m68k_movem_pattern_p, m68k_output_movem): Likewise.
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(m68k_expand_prologue, m68k_expand_epilogue): Likewise.
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* config/m68k/m68k.h (EPILOGUE_USES): Define. Treat all registers
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as being live on exit from an interrupt function.
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(PRINT_OPERAND_PUNCT_VALID_P): Return true for '?'.
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* config/m68k/m68k.c (MIN_MOVEM_REGS, MIN_FMOVEM_REGS): New macros.
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(m68k_frame): Remove reg_rev_mask and fpu_rev_mask.
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(TARGET_ASM_FUNCTION_PROLOGUE, TARGET_ASM_FUNCTION_EPILOGUE): Delete.
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(m68k_interrupt_function_p): Globalize.
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(m68k_compute_frame_layout): Remove reverse mask code.
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(m68k_emit_movem, m68k_set_frame_related): New functions.
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(m68k_output_function_prologue): Delete in favor of...
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(m68k_expand_prologue): ...this new function.
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(m68k_output_function_epilogue): Delete in favor of...
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(m68k_expand_epilogue): ...this new function.
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(m68k_split_offset, m68k_movem_pattern_p, m68k_output_movem): New
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functions.
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(print_operand): Handle %?.
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* config/m68k/m68k.md (UNSPEC_SIN, UNSPEC_COS): Remove excess space.
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(UNSPEC_GOT, A1_REG, PIC_REG, FP0_REG): New constants.
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(prologue, epilogue): New patterns.
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(return): Turn into a define_expand.
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(*return): New pattern, derived from old "return" pattern. Use rte
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rather than rts for interrupt functions. Only use rtd if the pop
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count is nonzero.
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(*m68k_store_multiple, *m68k_store_multiple_automod): New patterns.
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(*m68k_load_multiple, *m68k_load_multiple_automod): Likewise.
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(link, *link, unlink, *unlink, load_got): Likewise.
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2007-03-06 Richard Sandiford <richard@codesourcery.com>
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PR target/23482
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@ -21,6 +21,7 @@ Boston, MA 02110-1301, USA. */
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/* Define functions defined in aux-output.c and used in templates. */
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#ifdef RTX_CODE
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extern bool m68k_interrupt_function_p (tree);
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extern HOST_WIDE_INT m68k_initial_elimination_offset (int from, int to);
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extern void split_di (rtx[], int, rtx[], rtx[]);
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@ -61,12 +62,16 @@ extern int valid_dbcc_comparison_p_2 (rtx, enum machine_mode);
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extern rtx m68k_libcall_value (enum machine_mode);
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extern rtx m68k_function_value (tree, tree);
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extern int emit_move_sequence (rtx *, enum machine_mode, rtx);
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extern bool m68k_movem_pattern_p (rtx, rtx, HOST_WIDE_INT, bool);
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extern const char *m68k_output_movem (rtx *, rtx, HOST_WIDE_INT, bool);
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#endif /* RTX_CODE */
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extern bool m68k_regno_mode_ok (int, enum machine_mode);
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extern int flags_in_68881 (void);
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extern void m68k_expand_prologue (void);
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extern bool m68k_use_return_insn (void);
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extern void m68k_expand_epilogue (void);
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extern void override_options (void);
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extern const char *m68k_cpp_cpu_ident (const char *);
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extern const char *m68k_cpp_cpu_family (const char *);
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File diff suppressed because it is too large
Load Diff
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@ -987,6 +987,10 @@ do { if (cc_prev_status.flags & CC_IN_68881) \
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/* Before the prologue, the top of the frame is at 4(%sp). */
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#define INCOMING_FRAME_SP_OFFSET 4
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/* All registers are live on exit from an interrupt routine. */
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#define EPILOGUE_USES(REGNO) \
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(reload_completed && m68k_interrupt_function_p (current_function_decl))
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/* Describe how we implement __builtin_eh_return. */
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#define EH_RETURN_DATA_REGNO(N) \
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((N) < 2 ? (N) : INVALID_REGNUM)
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@ -1123,6 +1127,7 @@ do { if (cc_prev_status.flags & CC_IN_68881) \
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'$' for the letter `s' in an op code, but only on the 68040.
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'&' for the letter `d' in an op code, but only on the 68040.
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'/' for register prefix needed by longlong.h.
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'?' for m68k_library_id_string
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'b' for byte insn (no effect, on the Sun; this is for the ISI).
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'd' to force memory addressing to be absolute, not relative.
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@ -1133,7 +1138,7 @@ do { if (cc_prev_status.flags & CC_IN_68881) \
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#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \
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((CODE) == '.' || (CODE) == '#' || (CODE) == '-' \
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|| (CODE) == '+' || (CODE) == '@' || (CODE) == '!' \
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|| (CODE) == '$' || (CODE) == '&' || (CODE) == '/')
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|| (CODE) == '$' || (CODE) == '&' || (CODE) == '/' || (CODE) == '?')
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/* See m68k.c for the m68k specific codes. */
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@ -112,8 +112,9 @@
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;; UNSPEC usage:
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(define_constants
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[(UNSPEC_SIN 1)
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(UNSPEC_COS 2)
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[(UNSPEC_SIN 1)
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(UNSPEC_COS 2)
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(UNSPEC_GOT 3)
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])
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;; UNSPEC_VOLATILE usage:
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@ -126,7 +127,10 @@
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(define_constants
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[(D0_REG 0)
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(A0_REG 8)
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(A1_REG 9)
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(PIC_REG 13)
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(SP_REG 15)
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(FP0_REG 16)
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])
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(include "predicates.md")
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@ -6756,15 +6760,158 @@
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""
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"nop")
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(define_expand "prologue"
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[(const_int 0)]
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""
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{
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m68k_expand_prologue ();
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DONE;
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})
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(define_expand "epilogue"
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[(return)]
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""
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{
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m68k_expand_epilogue ();
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DONE;
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})
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;; Used for frameless functions which save no regs and allocate no locals.
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(define_insn "return"
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(define_expand "return"
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[(return)]
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"m68k_use_return_insn ()"
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"")
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(define_insn "*return"
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[(return)]
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""
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{
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if (current_function_pops_args == 0)
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if (m68k_interrupt_function_p (current_function_decl))
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return "rte";
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else if (current_function_pops_args)
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{
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operands[0] = GEN_INT (current_function_pops_args);
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return "rtd %0";
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}
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else
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return "rts";
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operands[0] = GEN_INT (current_function_pops_args);
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return "rtd %0";
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})
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(define_insn "*m68k_store_multiple"
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[(match_parallel 0 "" [(match_operand 1 "")])]
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"m68k_movem_pattern_p (operands[0], NULL, 0, true)"
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{
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return m68k_output_movem (operands, operands[0], 0, true);
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})
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(define_insn "*m68k_store_multiple_automod"
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[(match_parallel 0 ""
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[(set (match_operand:SI 1 "register_operand" "=a")
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(plus:SI (match_operand:SI 2 "register_operand" "1")
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(match_operand:SI 3 "const_int_operand")))])]
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"m68k_movem_pattern_p (operands[0], operands[1], INTVAL (operands[3]), true)"
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{
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return m68k_output_movem (operands, operands[0], INTVAL (operands[3]), true);
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})
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(define_insn "*m68k_load_multiple"
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[(match_parallel 0 "" [(match_operand 1 "")])]
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"m68k_movem_pattern_p (operands[0], NULL, 0, false)"
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{
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return m68k_output_movem (operands, operands[0], 0, false);
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})
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(define_insn "*m68k_load_multiple_automod"
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[(match_parallel 0 ""
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[(set (match_operand:SI 1 "register_operand" "=a")
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(plus:SI (match_operand:SI 2 "register_operand" "1")
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(match_operand:SI 3 "const_int_operand")))])]
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"m68k_movem_pattern_p (operands[0], operands[1],
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INTVAL (operands[3]), false)"
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{
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return m68k_output_movem (operands, operands[0],
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INTVAL (operands[3]), false);
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})
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(define_expand "link"
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[(parallel
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[(set (match_operand:SI 0 "register_operand")
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(plus:SI (reg:SI SP_REG) (const_int -4)))
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(set (match_dup 2)
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(match_dup 0))
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(set (reg:SI SP_REG)
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(plus:SI (reg:SI SP_REG)
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(match_operand:SI 1 "const_int_operand")))])]
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"TARGET_68020 || INTVAL (operands[1]) >= -0x8004"
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{
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operands[2] = gen_frame_mem (SImode, plus_constant (stack_pointer_rtx, -4));
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})
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(define_insn "*link"
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[(set (match_operand:SI 0 "register_operand" "+r")
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(plus:SI (reg:SI SP_REG) (const_int -4)))
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(set (mem:SI (plus:SI (reg:SI SP_REG) (const_int -4)))
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(match_dup 0))
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(set (reg:SI SP_REG)
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(plus:SI (reg:SI SP_REG)
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(match_operand:SI 1 "const_int_operand")))]
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"TARGET_68020 || INTVAL (operands[1]) >= -0x8004"
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{
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operands[1] = GEN_INT (INTVAL (operands[1]) + 4);
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if (!MOTOROLA)
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return "link %0,%1";
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else if (INTVAL (operands[1]) >= -0x8000)
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return "link.w %0,%1";
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else
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return "link.l %0,%1";
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})
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(define_expand "unlink"
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[(parallel
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[(set (match_operand:SI 0 "register_operand")
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(match_dup 1))
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(set (reg:SI SP_REG)
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(plus:SI (match_dup 0)
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(const_int 4)))])]
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""
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{
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operands[1] = gen_frame_mem (SImode, copy_rtx (operands[0]));
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})
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(define_insn "*unlink"
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[(set (match_operand:SI 0 "register_operand" "+r")
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(mem:SI (match_dup 0)))
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(set (reg:SI SP_REG)
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(plus:SI (match_dup 0)
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(const_int 4)))]
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""
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"unlk %0")
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(define_insn "load_got"
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[(set (match_operand:SI 0 "register_operand" "=a")
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(unspec:SI [(const_int 0)] UNSPEC_GOT))]
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""
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{
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if (TARGET_ID_SHARED_LIBRARY)
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{
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operands[1] = gen_rtx_REG (Pmode, PIC_REG);
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return MOTOROLA ? "move.l %?(%1),%0" : "movel %1@(%?), %0";
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}
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else if (MOTOROLA)
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{
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if (TARGET_COLDFIRE)
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/* Load the full 32-bit PC-relative offset of
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_GLOBAL_OFFSET_TABLE_ into the PIC register, then use it to
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calculate the absolute value. The offset and "lea"
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operation word together occupy 6 bytes. */
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return ("move.l #_GLOBAL_OFFSET_TABLE_@GOTPC, %0\n\t"
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"lea (-6, %%pc, %0), %0");
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else
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return "lea (%%pc, _GLOBAL_OFFSET_TABLE_@GOTPC), %0";
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}
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else
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return ("movel #_GLOBAL_OFFSET_TABLE_, %0\n\t"
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"lea %%pc@(0,%0:l),%0");
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})
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(define_insn "indirect_jump"
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