function.h (struct function): Remove calls_longjmp.
* function.h (struct function): Remove calls_longjmp. (current_function_calls_longjmp): Delete. * tree.h (ECF_LONGJMP): Delete. (ECF_SIBCALL, ECF_PURE, ECF_SP_DEPRESSED, ECF_ALWAYS_RETURN) (ECF_LIBCALL_BLOCK): Everybody slide down one. (ECF_CONST, ECF_NORETURN, ECF_SIBCALL): Clarify comments. * builtins.c (expand_builtin_longjmp): Don't set current_function_calls_longjmp. * calls.c (special_function_p): Mark longjmp and siglongjmp with ECF_NORETURN, not ECF_LONGJMP. (emit_call_1, expand_call, emit_library_call_value_1): Don't check for ECF_LONGJMP. * tree-cfg.c (make_exit_edges, is_ctrl_altering_stmt) (need_fake_edge_p): Likewise. * config/avr/avr.h, config/ip2k/ip2k.h: Don't define NON_SAVING_SETJMP. * system.h: Poison NON_SAVING_SETJMP. * function.c (use_register_for_decl) * gcse.c (compute_hash_table_work, compute_store_table) * postreload-gcse.c (record_opr_changes) * reload.c (find_equiv_reg) * reload1.c (reload) * config/i386/i386.c (ix86_can_use_return_insn_p): Remove code conditional on NON_SAVING_SETJMP. * doc/tm.texi: Delete documentation of NON_SAVING_SETJMP. * config/i386/sysv3.h: Delete file. * config/i386/i386.c (ix86_svr3_asm_out_constructor): Delete. From-SVN: r91101
This commit is contained in:
Zack Weinberg
parent
e9c00ceb85
commit
6e14af161c
@ -1,3 +1,34 @@
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2004-11-23 Zack Weinberg <zack@codesourcery.com>
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* function.h (struct function): Remove calls_longjmp.
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(current_function_calls_longjmp): Delete.
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* tree.h (ECF_LONGJMP): Delete.
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(ECF_SIBCALL, ECF_PURE, ECF_SP_DEPRESSED, ECF_ALWAYS_RETURN)
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(ECF_LIBCALL_BLOCK): Everybody slide down one.
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(ECF_CONST, ECF_NORETURN, ECF_SIBCALL): Clarify comments.
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* builtins.c (expand_builtin_longjmp): Don't set
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current_function_calls_longjmp.
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* calls.c (special_function_p): Mark longjmp and siglongjmp
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with ECF_NORETURN, not ECF_LONGJMP.
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(emit_call_1, expand_call, emit_library_call_value_1):
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Don't check for ECF_LONGJMP.
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* tree-cfg.c (make_exit_edges, is_ctrl_altering_stmt)
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(need_fake_edge_p): Likewise.
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* config/avr/avr.h, config/ip2k/ip2k.h: Don't define NON_SAVING_SETJMP.
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* system.h: Poison NON_SAVING_SETJMP.
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* function.c (use_register_for_decl)
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* gcse.c (compute_hash_table_work, compute_store_table)
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* postreload-gcse.c (record_opr_changes)
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* reload.c (find_equiv_reg)
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* reload1.c (reload)
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* config/i386/i386.c (ix86_can_use_return_insn_p):
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Remove code conditional on NON_SAVING_SETJMP.
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* doc/tm.texi: Delete documentation of NON_SAVING_SETJMP.
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* config/i386/sysv3.h: Delete file.
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* config/i386/i386.c (ix86_svr3_asm_out_constructor): Delete.
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2004-11-23 Dorit Naishlos <dorit@il.ibm.com>
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* tree-vectorizer.c (vect_analyze_operations): Don't vectorize if
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@ -64,7 +95,7 @@
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removed.
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(DYNAMIC_CHAIN_ADDRESS): Use TARGET_PACKED_STACK.
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* config/s390/s390.md ("allocate_stack", "restore_stack_block")
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("save_stack_nonlocal", "restore_stack_nonlocal"): Modified to reflect
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("save_stack_nonlocal", "restore_stack_nonlocal"): Modified to reflect
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the change in target switch semantics.
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* config/s390/tpf.h (TARGET_DEFAULT_BACKCHAIN): Removed.
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(TARGET_DEFAULT): MASK_BACKCHAIN added.
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@ -72,10 +103,10 @@
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2004-11-23 Uros Bizjak <uros@kss-loka.si>
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PR rtl-optimization/18614
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* simplify-rtx.c (simplify_binary_operation): Do not
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simplify inner elements of constant arguments of
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VEC_CONCAT insn.
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PR rtl-optimization/18614
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* simplify-rtx.c (simplify_binary_operation): Do not
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simplify inner elements of constant arguments of
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VEC_CONCAT insn.
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2004-11-23 Eric Botcazou <ebotcazou@libertysurf.fr>
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@ -110,7 +141,7 @@
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* tree-vectorizer.c (vect_create_data_ref_ptr): Use
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lang_hooks.types.type_for_size instead of integer_type_node for the
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type of ptr_update.
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2004-11-23 Ralf Corsepius <ralf.corsepius@rtems.org>
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* config.gcc (h8300-*-rtems*): Use h8300/t-rtems.
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@ -189,7 +220,7 @@
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logbdf2, logbxf2, ilogbsi2, *f2xm1xf2, *fscalexf4, expsf2,
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expdf2, expxf2, exp10sf2, exp10df2, exp10xf2, exp2sf2, exp2df2,
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exp2xf2, expm1df2, expm1sf2, expm1xf2, frndintxf2, rintdf2,
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rintsf2, rintxf2, frndintxf2_floor, floordf2, floorsf2,
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rintsf2, rintxf2, frndintxf2_floor, floordf2, floorsf2,
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floorxf2, frndintxf2_ceil, ceildf2, ceilsf2, ceilxf2,
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frndintxf2_trunc, btruncdf2, btruncsf2, btruncxf2,
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frndintxf2_mask_pm, nearbyintdf2, nearbyintsf2, nearbyintxf2):
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@ -222,7 +253,7 @@
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2004-11-22 Devang Patel <dpatel@apple.com>
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* tree-if-conv.c (clean_predicate_lists): Clean all basic blocks.
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2004-11-22 Devang Patel <dpatel@apple.com>
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* tree-if-conv.c (if_convertable_phi_p): Rename to ...
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@ -235,7 +266,7 @@
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(if_convertible_bb_p): ... new name.
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(if_convertable_loop_p): Rename to ...
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(if_convertible_loop_p): ... new name.
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2004-11-22 Eric Botcazou <ebotcazou@libertysurf.fr>
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PR target/18444
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@ -319,7 +350,7 @@
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2004-11-22 Daniel Berlin <dberlin@dberlin.org>
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* tree-ssa.c (verify_ssa): SSA_OP_ALL_USES should be
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* tree-ssa.c (verify_ssa): SSA_OP_ALL_USES should be
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SSA_OP_ALL_USES | SSA_OP_ALL_KILLS for verification purposes.
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2004-11-22 David Edelsohn <edelsohn@gnu.org>
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@ -426,7 +457,7 @@
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(vect_update_niters_after_peeling): Use type of niters instead of
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integer_type.
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(vect_transform_loop): Unify handling of known and unknown loop bound
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cases. Call make_loop_iterate_ntimes instead of
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cases. Call make_loop_iterate_ntimes instead of
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vect_transform_loop_bound.
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2004-11-22 Andrew Pinski <pinskia@physics.uc.edu>
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@ -443,7 +474,7 @@
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2004-11-22 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
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* config.gcc: Use t-slibgcc-elf to build libgcc_s.so on
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m32r*linux.
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m32r*linux.
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* config/m32r/t-linux (SHLIB_MAPFILES): Override to use
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m32r/libgcc-glibc.ver.
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* config/m32r/libgcc-glibc.ver: Add New file.
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@ -679,8 +710,8 @@
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2004-11-19 Aldy Hernandez <aldyh@redhat.com>
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* simplify-rtx.c (simplify_ternary_operation): Use
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gen_int_mode.
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* simplify-rtx.c (simplify_ternary_operation): Use
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gen_int_mode.
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2004-11-19 Kazu Hirata <kazu@cs.umass.edu>
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@ -733,12 +764,12 @@
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(slpeel_tree_peel_loop_to_edge): Call slpeel_make_loop_iterate_ntimes
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without last two arguments. Update single_exit of loops.
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(vect_update_niters_after_peeling): Removed. Its functionality was
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moved to vect_do_peeling_for_alignment.
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moved to vect_do_peeling_for_alignment.
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(vect_do_peeling_for_loop_bound): New name for function previously
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called vect_transform_for_unknown_loop_bound.
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(vect_transform_loop_bound): Call slpeel_make_loop_iterate_ntimes
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instead of code that duplicates the same functionality.
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(vect_do_peeling_for_alignment): Functionality of
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(vect_do_peeling_for_alignment): Functionality of
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vect_update_niters_after_peeling moved here.
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(vect_transform_loop): Unify call to vect_do_peeling_for_loop_bound -
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previously named vect_transform_for_unknown_loop_bound - for both known
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@ -912,7 +943,7 @@
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altivec_lvx_4sf): Rename and replace with ...
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(altivec_lvx_<mode>): ... mode macro version.
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(altivec_stvx_4si, altivec_stvx_8hi, altivec_stvx_16qi,
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altivec_stvx_4sf): Rename and replace with ...
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altivec_stvx_4sf): Rename and replace with ...
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(altivec_stvx_<mode>): ... mode macro version.
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(movv4si, movv8hi, movv16qi, movv4sf}): Replace with ...
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(mov<mode>): ... mode macro version.
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@ -977,10 +1008,10 @@
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2004-11-18 Uros Bizjak <uros@kss-loka.si>
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* configure/i386/i386.md (*fix_trunch_1): Add "&& 1" to
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insn split constraint.
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(define_peephole2): Remove unneeded "&& 1" from peephole2
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constraints.
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* configure/i386/i386.md (*fix_trunch_1): Add "&& 1" to
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insn split constraint.
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(define_peephole2): Remove unneeded "&& 1" from peephole2
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constraints.
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2004-11-18 Ben Elliston <bje@au.ibm.com>
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@ -996,7 +1027,7 @@
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* config/i386/i386.c (i386_solaris_elf_named_section): Mark with
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ATTRIBUTE_UNUSED.
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2004-11-17 Zack Weinberg <zack@codesourcery.com>
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* defaults.h, config/darwin.h: Don't define TARGET_SUPPORTS_HIDDEN.
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@ -708,8 +708,6 @@ expand_builtin_longjmp (rtx buf_addr, rtx value)
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longer copying around a value that we don't care about. */
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gcc_assert (value == const1_rtx);
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current_function_calls_longjmp = 1;
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last = get_last_insn ();
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#ifdef HAVE_builtin_longjmp
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if (HAVE_builtin_longjmp)
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17
gcc/calls.c
17
gcc/calls.c
@ -435,7 +435,7 @@ emit_call_1 (rtx funexp, tree fntree, tree fndecl ATTRIBUTE_UNUSED,
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if (rounded_stack_size != 0)
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{
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if (ecf_flags & (ECF_SP_DEPRESSED | ECF_NORETURN | ECF_LONGJMP))
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if (ecf_flags & (ECF_SP_DEPRESSED | ECF_NORETURN))
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/* Just pretend we did the pop. */
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stack_pointer_delta -= rounded_stack_size;
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else if (flag_defer_pop && inhibit_defer_pop == 0
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@ -525,7 +525,7 @@ special_function_p (tree fndecl, int flags)
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if (tname[1] == 'i'
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&& ! strcmp (tname, "siglongjmp"))
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flags |= ECF_LONGJMP;
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flags |= ECF_NORETURN;
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}
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else if ((tname[0] == 'q' && tname[1] == 's'
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&& ! strcmp (tname, "qsetjmp"))
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@ -535,7 +535,7 @@ special_function_p (tree fndecl, int flags)
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else if (tname[0] == 'l' && tname[1] == 'o'
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&& ! strcmp (tname, "longjmp"))
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flags |= ECF_LONGJMP;
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flags |= ECF_NORETURN;
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}
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return flags;
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@ -2174,7 +2174,7 @@ expand_call (tree exp, rtx target, int ignore)
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|| !targetm.function_ok_for_sibcall (fndecl, exp)
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/* Functions that do not return exactly once may not be sibcall
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optimized. */
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|| (flags & (ECF_RETURNS_TWICE | ECF_LONGJMP | ECF_NORETURN))
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|| (flags & (ECF_RETURNS_TWICE | ECF_NORETURN))
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|| TYPE_VOLATILE (TREE_TYPE (TREE_TYPE (addr)))
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/* If the called function is nested in the current one, it might access
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some of the caller's arguments, but could clobber them beforehand if
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@ -2753,7 +2753,7 @@ expand_call (tree exp, rtx target, int ignore)
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if nonvolatile values are live. For functions that cannot return,
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inform flow that control does not fall through. */
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if ((flags & (ECF_NORETURN | ECF_LONGJMP)) || pass == 0)
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if ((flags & ECF_NORETURN) || pass == 0)
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{
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/* The barrier must be emitted
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immediately after the CALL_INSN. Some ports emit more
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@ -2779,9 +2779,6 @@ expand_call (tree exp, rtx target, int ignore)
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}
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}
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if (flags & ECF_LONGJMP)
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current_function_calls_longjmp = 1;
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/* If value type not void, return an rtx for the value. */
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if (TYPE_MODE (TREE_TYPE (exp)) == VOIDmode
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@ -2979,7 +2976,7 @@ expand_call (tree exp, rtx target, int ignore)
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normal_call_insns = insns;
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/* Verify that we've deallocated all the stack we used. */
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gcc_assert ((flags & (ECF_NORETURN | ECF_LONGJMP))
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gcc_assert ((flags & ECF_NORETURN)
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|| (old_stack_allocated
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== stack_pointer_delta - pending_stack_adjust));
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}
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@ -3694,7 +3691,7 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
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if nonvolatile values are live. For functions that cannot return,
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inform flow that control does not fall through. */
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if (flags & (ECF_NORETURN | ECF_LONGJMP))
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if (flags & ECF_NORETURN)
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{
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/* The barrier note must be emitted
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immediately after the CALL_INSN. Some ports emit more than
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@ -196,8 +196,6 @@ extern int avr_asm_only_p;
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1,1,/* STACK */ \
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1,1 /* arg pointer */ }
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#define NON_SAVING_SETJMP 0
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#define REG_ALLOC_ORDER { \
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24,25, \
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18,19, \
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@ -924,9 +924,6 @@ static bool ix86_must_pass_in_stack (enum machine_mode mode, tree type);
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static bool ix86_pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode,
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tree, bool);
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#if defined (DO_GLOBAL_CTORS_BODY) && defined (HAS_INIT_SECTION)
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static void ix86_svr3_asm_out_constructor (rtx, int);
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#endif
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/* This function is only used on Solaris. */
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static void i386_solaris_elf_named_section (const char *, unsigned int, tree)
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ATTRIBUTE_UNUSED;
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@ -3709,24 +3706,13 @@ symbolic_reference_mentioned_p (rtx op)
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body of a function. Do this only if the epilogue is simple, needing a
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couple of insns. Prior to reloading, we can't tell how many registers
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must be saved, so return 0 then. Return 0 if there is no frame
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marker to de-allocate.
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If NON_SAVING_SETJMP is defined and true, then it is not possible
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for the epilogue to be simple, so return 0. This is a special case
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since NON_SAVING_SETJMP will not cause regs_ever_live to change
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until final, but jump_optimize may need to know sooner if a
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`return' is OK. */
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marker to de-allocate. */
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int
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ix86_can_use_return_insn_p (void)
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{
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struct ix86_frame frame;
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#ifdef NON_SAVING_SETJMP
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if (NON_SAVING_SETJMP && current_function_calls_setjmp)
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return 0;
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#endif
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if (! reload_completed || frame_pointer_needed)
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return 0;
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@ -14374,17 +14360,6 @@ ix86_rtx_costs (rtx x, int code, int outer_code, int *total)
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}
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}
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|
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#if defined (DO_GLOBAL_CTORS_BODY) && defined (HAS_INIT_SECTION)
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static void
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ix86_svr3_asm_out_constructor (rtx symbol, int priority ATTRIBUTE_UNUSED)
|
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{
|
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init_section ();
|
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fputs ("\tpushl $", asm_out_file);
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assemble_name (asm_out_file, XSTR (symbol, 0));
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fputc ('\n', asm_out_file);
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}
|
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#endif
|
||||
|
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#if TARGET_MACHO
|
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|
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static int current_machopic_label_num;
|
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|
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@ -1,105 +0,0 @@
|
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/* Definitions for Intel 386 running system V.
|
||||
Copyright (C) 1988, 1996, 2000, 2002 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GCC.
|
||||
|
||||
GCC is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GCC is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GCC; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#define TARGET_VERSION fprintf (stderr, " (80386, ATT syntax)");
|
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|
||||
/* Use crt1.o as a startup file and crtn.o as a closing file. */
|
||||
|
||||
#define STARTFILE_SPEC \
|
||||
"%{pg:gcrt1.o%s}%{!pg:%{posix:%{p:mcrtp1.o%s}%{!p:crtp1.o%s}}%{!posix:%{p:mcrt1.o%s}%{!p:crt1.o%s}}} crtbegin.o%s\
|
||||
%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp}"
|
||||
|
||||
/* ??? There is a suggestion that -lg is needed here.
|
||||
Does anyone know whether this is right? */
|
||||
#define LIB_SPEC "%{posix:-lcposix} %{shlib:-lc_s} -lc crtend.o%s crtn.o%s"
|
||||
|
||||
/* Specify predefined symbols in preprocessor. */
|
||||
|
||||
#define TARGET_OS_CPP_BUILTINS() \
|
||||
do \
|
||||
{ \
|
||||
builtin_define_std ("unix"); \
|
||||
builtin_assert ("system=svr3"); \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
|
||||
|
||||
/* Writing `int' for a bit-field forces int alignment for the structure. */
|
||||
|
||||
#define PCC_BITFIELD_TYPE_MATTERS 1
|
||||
|
||||
/* We want to be able to get DBX debugging information via -gstabs. */
|
||||
|
||||
#define DBX_DEBUGGING_INFO 1
|
||||
|
||||
#undef PREFERRED_DEBUGGING_TYPE
|
||||
#define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
|
||||
|
||||
/* longjmp may fail to restore the registers if called from the same
|
||||
function that called setjmp. To compensate, the compiler avoids
|
||||
putting variables in registers in functions that use both setjmp
|
||||
and longjmp. */
|
||||
|
||||
#define NON_SAVING_SETJMP \
|
||||
(current_function_calls_setjmp && current_function_calls_longjmp)
|
||||
|
||||
/* longjmp may fail to restore the stack pointer if the saved frame
|
||||
pointer is the same as the caller's frame pointer. Requiring a frame
|
||||
pointer in any function that calls setjmp or longjmp avoids this
|
||||
problem, unless setjmp and longjmp are called from the same function.
|
||||
Since a frame pointer will be required in such a function, it is OK
|
||||
that the stack pointer is not restored. */
|
||||
|
||||
#undef SUBTARGET_FRAME_POINTER_REQUIRED
|
||||
#define SUBTARGET_FRAME_POINTER_REQUIRED \
|
||||
(current_function_calls_setjmp || current_function_calls_longjmp)
|
||||
|
||||
/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib. */
|
||||
#undef ASM_OUTPUT_LOCAL
|
||||
#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
|
||||
do { \
|
||||
int align = exact_log2 (ROUNDED); \
|
||||
if (align > 2) align = 2; \
|
||||
if (TARGET_SVR3_SHLIB) \
|
||||
data_section (); \
|
||||
else \
|
||||
bss_section (); \
|
||||
ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \
|
||||
ASM_OUTPUT_LABEL ((FILE), (NAME)); \
|
||||
fprintf ((FILE), "\t.set .,.+%u\n", (int)(ROUNDED));\
|
||||
} while (0)
|
||||
|
||||
/* Define a few machine-specific details of the implementation of
|
||||
constructors.
|
||||
|
||||
The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN
|
||||
and CTOR_LIST_END to contribute to the .init section an instruction to
|
||||
push a word containing 0 (or some equivalent of that). */
|
||||
|
||||
#undef INIT_SECTION_ASM_OP
|
||||
#define INIT_SECTION_ASM_OP "\t.section .init,\"x\""
|
||||
|
||||
#define CTOR_LIST_BEGIN \
|
||||
asm (INIT_SECTION_ASM_OP); \
|
||||
asm ("pushl $0")
|
||||
#define CTOR_LIST_END CTOR_LIST_BEGIN
|
||||
|
||||
#define TARGET_ASM_CONSTRUCTOR ix86_svr3_asm_out_constructor
|
||||
@ -184,8 +184,6 @@ extern int target_flags;
|
||||
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,/*r224..r255*/\
|
||||
1,1,1,1}
|
||||
|
||||
#define NON_SAVING_SETJMP 0
|
||||
|
||||
#define REG_ALLOC_ORDER { \
|
||||
0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f, \
|
||||
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97, \
|
||||
|
||||
@ -1983,14 +1983,6 @@ controlled by target switches, then GCC will automatically avoid using
|
||||
these registers when the target switches are opposed to them.)
|
||||
@end defmac
|
||||
|
||||
@defmac NON_SAVING_SETJMP
|
||||
If this macro is defined and has a nonzero value, it means that
|
||||
@code{setjmp} and related functions fail to save the registers, or that
|
||||
@code{longjmp} fails to restore them. To compensate, the compiler
|
||||
avoids putting variables in registers in functions that use
|
||||
@code{setjmp}.
|
||||
@end defmac
|
||||
|
||||
@defmac INCOMING_REGNO (@var{out})
|
||||
Define this macro if the target machine has register windows. This C
|
||||
expression returns the register number as seen by the called function
|
||||
|
||||
@ -1926,14 +1926,6 @@ use_register_for_decl (tree decl)
|
||||
if (DECL_ARTIFICIAL (decl))
|
||||
return true;
|
||||
|
||||
#ifdef NON_SAVING_SETJMP
|
||||
/* Protect variables not declared "register" from setjmp. */
|
||||
if (NON_SAVING_SETJMP
|
||||
&& current_function_calls_setjmp
|
||||
&& !DECL_REGISTER (decl))
|
||||
return false;
|
||||
#endif
|
||||
|
||||
return (optimize || DECL_REGISTER (decl));
|
||||
}
|
||||
|
||||
|
||||
@ -357,9 +357,6 @@ struct function GTY(())
|
||||
/* Nonzero if function being compiled can call setjmp. */
|
||||
unsigned int calls_setjmp : 1;
|
||||
|
||||
/* Nonzero if function being compiled can call longjmp. */
|
||||
unsigned int calls_longjmp : 1;
|
||||
|
||||
/* Nonzero if function being compiled can call alloca,
|
||||
either as a subroutine or builtin. */
|
||||
unsigned int calls_alloca : 1;
|
||||
@ -449,7 +446,6 @@ extern int trampolines_created;
|
||||
#define current_function_returns_pointer (cfun->returns_pointer)
|
||||
#define current_function_calls_setjmp (cfun->calls_setjmp)
|
||||
#define current_function_calls_alloca (cfun->calls_alloca)
|
||||
#define current_function_calls_longjmp (cfun->calls_longjmp)
|
||||
#define current_function_calls_eh_return (cfun->calls_eh_return)
|
||||
#define current_function_has_computed_jump (cfun->has_computed_jump)
|
||||
#define current_function_contains_functions (cfun->contains_functions)
|
||||
|
||||
40
gcc/gcse.c
40
gcc/gcse.c
@ -2126,16 +2126,8 @@ compute_hash_table_work (struct hash_table *table)
|
||||
|
||||
if (CALL_P (insn))
|
||||
{
|
||||
bool clobbers_all = false;
|
||||
#ifdef NON_SAVING_SETJMP
|
||||
if (NON_SAVING_SETJMP
|
||||
&& find_reg_note (insn, REG_SETJMP, NULL_RTX))
|
||||
clobbers_all = true;
|
||||
#endif
|
||||
|
||||
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
|
||||
if (clobbers_all
|
||||
|| TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
if (TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
record_last_reg_set_info (insn, regno);
|
||||
|
||||
mark_call (insn);
|
||||
@ -5784,16 +5776,8 @@ compute_store_table (void)
|
||||
|
||||
if (CALL_P (insn))
|
||||
{
|
||||
bool clobbers_all = false;
|
||||
#ifdef NON_SAVING_SETJMP
|
||||
if (NON_SAVING_SETJMP
|
||||
&& find_reg_note (insn, REG_SETJMP, NULL_RTX))
|
||||
clobbers_all = true;
|
||||
#endif
|
||||
|
||||
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
|
||||
if (clobbers_all
|
||||
|| TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
if (TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
{
|
||||
last_set_in[regno] = INSN_UID (insn);
|
||||
SET_BIT (reg_set_in_block[bb->index], regno);
|
||||
@ -5817,16 +5801,8 @@ compute_store_table (void)
|
||||
|
||||
if (CALL_P (insn))
|
||||
{
|
||||
bool clobbers_all = false;
|
||||
#ifdef NON_SAVING_SETJMP
|
||||
if (NON_SAVING_SETJMP
|
||||
&& find_reg_note (insn, REG_SETJMP, NULL_RTX))
|
||||
clobbers_all = true;
|
||||
#endif
|
||||
|
||||
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
|
||||
if (clobbers_all
|
||||
|| TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
if (TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
already_set[regno] = 1;
|
||||
}
|
||||
|
||||
@ -5841,16 +5817,8 @@ compute_store_table (void)
|
||||
note_stores (pat, reg_clear_last_set, last_set_in);
|
||||
if (CALL_P (insn))
|
||||
{
|
||||
bool clobbers_all = false;
|
||||
#ifdef NON_SAVING_SETJMP
|
||||
if (NON_SAVING_SETJMP
|
||||
&& find_reg_note (insn, REG_SETJMP, NULL_RTX))
|
||||
clobbers_all = true;
|
||||
#endif
|
||||
|
||||
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
|
||||
if ((clobbers_all
|
||||
|| TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
if (TEST_HARD_REG_BIT (regs_invalidated_by_call, regno)
|
||||
&& last_set_in[regno] == INSN_UID (insn))
|
||||
last_set_in[regno] = 0;
|
||||
}
|
||||
|
||||
@ -712,17 +712,9 @@ record_opr_changes (rtx insn)
|
||||
if (CALL_P (insn))
|
||||
{
|
||||
unsigned int regno;
|
||||
bool clobbers_all = false;
|
||||
|
||||
#ifdef NON_SAVING_SETJMP
|
||||
if (NON_SAVING_SETJMP
|
||||
&& find_reg_note (insn, REG_SETJMP, NULL_RTX))
|
||||
clobbers_all = true;
|
||||
#endif
|
||||
|
||||
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
|
||||
if (clobbers_all
|
||||
|| TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
if (TEST_HARD_REG_BIT (regs_invalidated_by_call, regno))
|
||||
record_last_reg_set_info (insn, regno);
|
||||
|
||||
if (! CONST_OR_PURE_CALL_P (insn))
|
||||
|
||||
@ -6693,10 +6693,6 @@ find_equiv_reg (rtx goal, rtx insn, enum reg_class class, int other,
|
||||
for (i = 0; i < valuenregs; ++i)
|
||||
if (call_used_regs[valueno + i])
|
||||
return 0;
|
||||
#ifdef NON_SAVING_SETJMP
|
||||
if (NON_SAVING_SETJMP && find_reg_note (p, REG_SETJMP, NULL))
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
if (INSN_P (p))
|
||||
|
||||
@ -682,17 +682,6 @@ reload (rtx first, int global)
|
||||
if (! call_used_regs[i] && ! fixed_regs[i] && ! LOCAL_REGNO (i))
|
||||
regs_ever_live[i] = 1;
|
||||
|
||||
#ifdef NON_SAVING_SETJMP
|
||||
/* A function that calls setjmp should save and restore all the
|
||||
call-saved registers on a system where longjmp clobbers them. */
|
||||
if (NON_SAVING_SETJMP && current_function_calls_setjmp)
|
||||
{
|
||||
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
|
||||
if (! call_used_regs[i])
|
||||
regs_ever_live[i] = 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Find all the pseudo registers that didn't get hard regs
|
||||
but do have known equivalent constants or memory slots.
|
||||
These include parameters (known equivalent to parameter slots)
|
||||
|
||||
@ -657,7 +657,8 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
|
||||
ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
|
||||
GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
|
||||
PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
|
||||
DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE
|
||||
DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
|
||||
NON_SAVING_SETJMP
|
||||
|
||||
/* Hooks that are no longer used. */
|
||||
#pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
|
||||
|
||||
@ -552,7 +552,7 @@ make_exit_edges (basic_block bb)
|
||||
such a bloody pain to avoid creating edges for this case since
|
||||
all we do is remove these edges when we're done building the
|
||||
CFG. */
|
||||
if (call_expr_flags (last) & (ECF_NORETURN | ECF_LONGJMP))
|
||||
if (call_expr_flags (last) & ECF_NORETURN)
|
||||
{
|
||||
make_edge (bb, EXIT_BLOCK_PTR, EDGE_FAKE);
|
||||
return;
|
||||
@ -2546,7 +2546,7 @@ is_ctrl_altering_stmt (tree t)
|
||||
return true;
|
||||
|
||||
/* A CALL_EXPR also alters control flow if it does not return. */
|
||||
if (call_expr_flags (call) & (ECF_NORETURN | ECF_LONGJMP))
|
||||
if (call_expr_flags (call) & ECF_NORETURN)
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -5148,8 +5148,7 @@ need_fake_edge_p (tree t)
|
||||
leads to different results from -fbranch-probabilities. */
|
||||
call = get_call_expr_in (t);
|
||||
if (call
|
||||
&& !(call_expr_flags (call) &
|
||||
(ECF_NORETURN | ECF_LONGJMP | ECF_ALWAYS_RETURN)))
|
||||
&& !(call_expr_flags (call) & (ECF_NORETURN | ECF_ALWAYS_RETURN)))
|
||||
return true;
|
||||
|
||||
if (TREE_CODE (t) == ASM_EXPR
|
||||
|
||||
21
gcc/tree.h
21
gcc/tree.h
@ -3648,9 +3648,11 @@ extern rtx emit_line_note (location_t);
|
||||
|
||||
/* In calls.c */
|
||||
|
||||
/* Nonzero if this is a call to a `const' function. */
|
||||
/* Nonzero if this is a call to a function whose return value depends
|
||||
solely on its arguments, has no side effects, and does not read
|
||||
global memory. */
|
||||
#define ECF_CONST 1
|
||||
/* Nonzero if this is a call to a `volatile' function. */
|
||||
/* Nonzero if this call will never return. */
|
||||
#define ECF_NORETURN 2
|
||||
/* Nonzero if this is a call to malloc or a related function. */
|
||||
#define ECF_MALLOC 4
|
||||
@ -3660,21 +3662,18 @@ extern rtx emit_line_note (location_t);
|
||||
#define ECF_NOTHROW 16
|
||||
/* Nonzero if this is a call to setjmp or a related function. */
|
||||
#define ECF_RETURNS_TWICE 32
|
||||
/* Nonzero if this is a call to `longjmp'. */
|
||||
#define ECF_LONGJMP 64
|
||||
/* Nonzero if this is a syscall that makes a new process in the image of
|
||||
the current one. */
|
||||
#define ECF_SIBCALL 128
|
||||
/* Nonzero if this call replaces the current stack frame. */
|
||||
#define ECF_SIBCALL 64
|
||||
/* Nonzero if this is a call to "pure" function (like const function,
|
||||
but may read memory. */
|
||||
#define ECF_PURE 256
|
||||
#define ECF_PURE 128
|
||||
/* Nonzero if this is a call to a function that returns with the stack
|
||||
pointer depressed. */
|
||||
#define ECF_SP_DEPRESSED 512
|
||||
#define ECF_SP_DEPRESSED 256
|
||||
/* Nonzero if this call is known to always return. */
|
||||
#define ECF_ALWAYS_RETURN 1024
|
||||
#define ECF_ALWAYS_RETURN 512
|
||||
/* Create libcall block around the call. */
|
||||
#define ECF_LIBCALL_BLOCK 2048
|
||||
#define ECF_LIBCALL_BLOCK 1024
|
||||
|
||||
extern int flags_from_decl_or_type (tree);
|
||||
extern int call_expr_flags (tree);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user