i386.c (ix86_expand_prologue): Optimize stack checking for leaf functions without dynamic stack allocation.
* config/i386/i386.c (ix86_expand_prologue): Optimize stack checking for leaf functions without dynamic stack allocation. * config/ia64/ia64.c (ia64_emit_probe_stack_range): Adjust. (ia64_expand_prologue): Likewise. * config/mips/mips.c (mips_expand_prologue): Likewise. * config/rs6000/rs6000.c (rs6000_emit_prologue): Likewise. * config/sparc/sparc.c (sparc_expand_prologue): Likewise. (sparc_flat_expand_prologue): Likewise. From-SVN: r204450
This commit is contained in:
Eric Botcazou
parent
f054ff5b7c
commit
0dca9cd86c
6 changed files with 165 additions and 89 deletions
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@ -1,3 +1,14 @@
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2013-11-06 Eric Botcazou <ebotcazou@adacore.com>
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* config/i386/i386.c (ix86_expand_prologue): Optimize stack checking for
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leaf functions without dynamic stack allocation.
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* config/ia64/ia64.c (ia64_emit_probe_stack_range): Adjust.
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(ia64_expand_prologue): Likewise.
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* config/mips/mips.c (mips_expand_prologue): Likewise.
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* config/rs6000/rs6000.c (rs6000_emit_prologue): Likewise.
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* config/sparc/sparc.c (sparc_expand_prologue): Likewise.
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(sparc_flat_expand_prologue): Likewise.
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2013-11-06 James Greenhalgh <james.greenhalgh@arm.com>
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* config/aarch64/arm_neon.h
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@ -28,12 +39,12 @@
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2013-11-06 Christian Bruel <christian.bruel@st.com>
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* gcc/config/sh/sh-mem.cc (sh_expand_cmpnstr, sh_expand_cmpstr):
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* config/sh/sh-mem.cc (sh_expand_cmpnstr, sh_expand_cmpstr):
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Factorize probabilities, Use adjust_address instead of
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adjust_automodify_address when possible. Enable for optimize.
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(sh_expand_strlen): New function.
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* gcc/config/sh/sh-protos.h (sh_expand_strlen): Declare.
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* gcc/config/sh/sh.md (strlensi): New pattern.
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* config/sh/sh-protos.h (sh_expand_strlen): Declare.
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* config/sh/sh.md (strlensi): New pattern.
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(UNSPEC_BUILTIN_STRLEN): Define.
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2013-11-06 Jakub Jelinek <jakub@redhat.com>
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@ -305,19 +316,19 @@
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2013-11-04 Wei Mi <wmi@google.com>
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* gcc/config/i386/i386.c (memory_address_length): Extract a part
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* config/i386/i386.c (memory_address_length): Extract a part
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of code to rip_relative_addr_p.
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(rip_relative_addr_p): New Function.
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(ix86_macro_fusion_p): Ditto.
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(ix86_macro_fusion_pair_p): Ditto.
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* gcc/config/i386/i386.h: Add new tune features about macro-fusion.
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* gcc/config/i386/x86-tune.def (DEF_TUNE): Ditto.
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* gcc/doc/tm.texi: Generated.
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* gcc/doc/tm.texi.in: Ditto.
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* gcc/haifa-sched.c (try_group_insn): New Function.
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* config/i386/i386.h: Add new tune features about macro-fusion.
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* config/i386/x86-tune.def (DEF_TUNE): Ditto.
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* doc/tm.texi: Generated.
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* doc/tm.texi.in: Ditto.
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* haifa-sched.c (try_group_insn): New Function.
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(group_insns_for_macro_fusion): Ditto.
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(sched_init): Call group_insns_for_macro_fusion.
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* gcc/target.def: Add two hooks: macro_fusion_p and
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* target.def: Add two hooks: macro_fusion_p and
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macro_fusion_pair_p.
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2013-11-04 Kostya Serebryany <kcc@google.com>
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@ -337,17 +348,17 @@
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2013-11-04 Wei Mi <wmi@google.com>
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* gcc/config/i386/i386-c.c (ix86_target_macros_internal): Separate
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* config/i386/i386-c.c (ix86_target_macros_internal): Separate
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PROCESSOR_COREI7_AVX out from PROCESSOR_COREI7.
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* gcc/config/i386/i386.c (ix86_option_override_internal): Ditto.
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* config/i386/i386.c (ix86_option_override_internal): Ditto.
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(ix86_issue_rate): Ditto.
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(ix86_adjust_cost): Ditto.
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(ia32_multipass_dfa_lookahead): Ditto.
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(ix86_sched_init_global): Ditto.
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(get_builtin_code_for_version): Ditto.
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* gcc/config/i386/i386.h (enum target_cpu_default): Ditto.
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* config/i386/i386.h (enum target_cpu_default): Ditto.
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(enum processor_type): Ditto.
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* gcc/config/i386/x86-tune.def (DEF_TUNE): Ditto.
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* config/i386/x86-tune.def (DEF_TUNE): Ditto.
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2013-11-04 Vladimir Makarov <vmakarov@redhat.com>
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@ -903,7 +914,7 @@
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2013-10-30 Tobias Burnus <burnus@net-b.de>
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PR other/33426
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* gcc/tree-cfg.c (replace_loop_annotate): Replace warning by
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* tree-cfg.c (replace_loop_annotate): Replace warning by
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warning_at.
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2013-10-30 Jason Merrill <jason@redhat.com>
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@ -1024,10 +1035,10 @@
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2013-10-30 Christian Bruel <christian.bruel@st.com>
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* gcc/config/sh/sh-mem.cc (sh_expand_cmpnstr): New function.
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* config/sh/sh-mem.cc (sh_expand_cmpnstr): New function.
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(sh_expand_cmpstr): Handle known align and schedule improvements.
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* gcc/config/sh/sh-protos.h (sh_expand_cmpstrn): Declare.
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* gcc/config/sh/sh.md (cmpstrnsi): New pattern.
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* config/sh/sh-protos.h (sh_expand_cmpstrn): Declare.
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* config/sh/sh.md (cmpstrnsi): New pattern.
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2013-10-30 Martin Jambor <mjambor@suse.cz>
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@ -2303,7 +2314,7 @@
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2013-10-24 Joern Rennecke <joern.rennecke@embecosm.com>
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* gcc/config/arc/arc.c (arc_ccfsm_post_advance): Also handle
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* config/arc/arc.c (arc_ccfsm_post_advance): Also handle
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TYPE_UNCOND_BRANCH.
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(arc_ifcvt) <case 1 and 2>: Check that arc_ccfsm_post_advance
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changes statep->state.
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@ -2335,12 +2346,12 @@
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2013-10-25 Christian Bruel <christian.bruel@st.com>
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* config.gcc (sh-*): Add sh-mem.o to extra_obj.
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* gcc/config/sh/t-sh (sh-mem.o): New rule.
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* gcc/config/sh/sh-mem.cc (expand_block_move): Moved here.
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* config/sh/t-sh (sh-mem.o): New rule.
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* config/sh/sh-mem.cc (expand_block_move): Moved here.
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(sh_expand_cmpstr): New function.
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* gcc/config/sh/sh.c (force_into, expand_block_move): Move to sh-mem.c.
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* gcc/config/sh/sh-protos.h (sh_expand_cmpstr): Declare.
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* gcc/config/sh/sh.md (cmpstrsi, cmpstr_t): New patterns.
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* config/sh/sh.c (force_into, expand_block_move): Move to sh-mem.c.
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* config/sh/sh-protos.h (sh_expand_cmpstr): Declare.
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* config/sh/sh.md (cmpstrsi, cmpstr_t): New patterns.
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(rotlhi3_8): Rename.
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2013-10-24 Jan-Benedict Glaw <jbglaw@lug-owl.de>
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@ -3184,7 +3195,7 @@
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2013-10-16 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
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* gcc/config/rs6000/vector.md (vec_unpacks_hi_v4sf): Correct for
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* config/rs6000/vector.md (vec_unpacks_hi_v4sf): Correct for
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endianness.
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(vec_unpacks_lo_v4sf): Likewise.
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(vec_unpacks_float_hi_v4si): Likewise.
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@ -3970,8 +3981,8 @@
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(anddi3_insn): Update type attribute.
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(xordi3_insn): Likewise.
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(one_cmpldi2): Likewise.
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* gcc/config/arm/vfp.md (movhf_vfp_neon): Update type attribute.
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* gcc/config/arm/neon.md (neon_mov): Update type attribute.
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* config/arm/vfp.md (movhf_vfp_neon): Update type attribute.
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* config/arm/neon.md (neon_mov): Update type attribute.
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(*movmisalign<mode>_neon_store): Likewise.
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(*movmisalign<mode>_neon_load): Likewise.
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(vec_set<mode>_internal): Likewise.
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@ -10657,8 +10657,12 @@ ix86_expand_prologue (void)
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if (STACK_CHECK_MOVING_SP)
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{
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ix86_adjust_stack_and_probe (allocate);
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allocate = 0;
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if (!(crtl->is_leaf && !cfun->calls_alloca
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&& allocate <= PROBE_INTERVAL))
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{
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ix86_adjust_stack_and_probe (allocate);
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allocate = 0;
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}
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}
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else
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{
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@ -10668,9 +10672,26 @@ ix86_expand_prologue (void)
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size = 0x80000000 - STACK_CHECK_PROTECT - 1;
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if (TARGET_STACK_PROBE)
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ix86_emit_probe_stack_range (0, size + STACK_CHECK_PROTECT);
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{
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if (crtl->is_leaf && !cfun->calls_alloca)
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{
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if (size > PROBE_INTERVAL)
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ix86_emit_probe_stack_range (0, size);
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}
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else
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ix86_emit_probe_stack_range (0, size + STACK_CHECK_PROTECT);
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}
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else
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ix86_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
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{
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if (crtl->is_leaf && !cfun->calls_alloca)
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{
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if (size > PROBE_INTERVAL && size > STACK_CHECK_PROTECT)
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ix86_emit_probe_stack_range (STACK_CHECK_PROTECT,
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size - STACK_CHECK_PROTECT);
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}
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else
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ix86_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
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}
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}
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}
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@ -3206,61 +3206,54 @@ gen_fr_restore_x (rtx dest, rtx src, rtx offset ATTRIBUTE_UNUSED)
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#define BACKING_STORE_SIZE(N) ((N) > 0 ? ((N) + (N)/63 + 1) * 8 : 0)
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/* Emit code to probe a range of stack addresses from FIRST to FIRST+SIZE,
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inclusive. These are offsets from the current stack pointer. SOL is the
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size of local registers. ??? This clobbers r2 and r3. */
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inclusive. These are offsets from the current stack pointer. BS_SIZE
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is the size of the backing store. ??? This clobbers r2 and r3. */
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static void
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ia64_emit_probe_stack_range (HOST_WIDE_INT first, HOST_WIDE_INT size, int sol)
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ia64_emit_probe_stack_range (HOST_WIDE_INT first, HOST_WIDE_INT size,
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int bs_size)
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{
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/* On the IA-64 there is a second stack in memory, namely the Backing Store
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of the Register Stack Engine. We also need to probe it after checking
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that the 2 stacks don't overlap. */
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const int bs_size = BACKING_STORE_SIZE (sol);
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rtx r2 = gen_rtx_REG (Pmode, GR_REG (2));
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rtx r3 = gen_rtx_REG (Pmode, GR_REG (3));
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rtx p6 = gen_rtx_REG (BImode, PR_REG (6));
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/* Detect collision of the 2 stacks if necessary. */
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if (bs_size > 0 || size > 0)
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{
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rtx p6 = gen_rtx_REG (BImode, PR_REG (6));
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/* On the IA-64 there is a second stack in memory, namely the Backing Store
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of the Register Stack Engine. We also need to probe it after checking
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that the 2 stacks don't overlap. */
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emit_insn (gen_bsp_value (r3));
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emit_move_insn (r2, GEN_INT (-(first + size)));
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emit_insn (gen_bsp_value (r3));
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emit_move_insn (r2, GEN_INT (-(first + size)));
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/* Compare current value of BSP and SP registers. */
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emit_insn (gen_rtx_SET (VOIDmode, p6,
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gen_rtx_fmt_ee (LTU, BImode,
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r3, stack_pointer_rtx)));
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/* Compare current value of BSP and SP registers. */
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emit_insn (gen_rtx_SET (VOIDmode, p6,
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gen_rtx_fmt_ee (LTU, BImode,
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r3, stack_pointer_rtx)));
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/* Compute the address of the probe for the Backing Store (which grows
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towards higher addresses). We probe only at the first offset of
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the next page because some OS (eg Linux/ia64) only extend the
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backing store when this specific address is hit (but generate a SEGV
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on other address). Page size is the worst case (4KB). The reserve
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size is at least 4096 - (96 + 2) * 8 = 3312 bytes, which is enough.
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Also compute the address of the last probe for the memory stack
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(which grows towards lower addresses). */
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emit_insn (gen_rtx_SET (VOIDmode, r3, plus_constant (Pmode, r3, 4095)));
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emit_insn (gen_rtx_SET (VOIDmode, r2,
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gen_rtx_PLUS (Pmode, stack_pointer_rtx, r2)));
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/* Compute the address of the probe for the Backing Store (which grows
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towards higher addresses). We probe only at the first offset of
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the next page because some OS (eg Linux/ia64) only extend the
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backing store when this specific address is hit (but generate a SEGV
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on other address). Page size is the worst case (4KB). The reserve
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size is at least 4096 - (96 + 2) * 8 = 3312 bytes, which is enough.
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Also compute the address of the last probe for the memory stack
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(which grows towards lower addresses). */
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emit_insn (gen_rtx_SET (VOIDmode, r3, plus_constant (Pmode, r3, 4095)));
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emit_insn (gen_rtx_SET (VOIDmode, r2,
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gen_rtx_PLUS (Pmode, stack_pointer_rtx, r2)));
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/* Compare them and raise SEGV if the former has topped the latter. */
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emit_insn (gen_rtx_COND_EXEC (VOIDmode,
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gen_rtx_fmt_ee (NE, VOIDmode, p6,
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const0_rtx),
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gen_rtx_SET (VOIDmode, p6,
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gen_rtx_fmt_ee (GEU, BImode,
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r3, r2))));
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emit_insn (gen_rtx_SET (VOIDmode,
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gen_rtx_ZERO_EXTRACT (DImode, r3, GEN_INT (12),
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const0_rtx),
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const0_rtx));
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emit_insn (gen_rtx_COND_EXEC (VOIDmode,
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gen_rtx_fmt_ee (NE, VOIDmode, p6,
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const0_rtx),
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gen_rtx_TRAP_IF (VOIDmode, const1_rtx,
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GEN_INT (11))));
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}
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/* Compare them and raise SEGV if the former has topped the latter. */
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emit_insn (gen_rtx_COND_EXEC (VOIDmode,
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gen_rtx_fmt_ee (NE, VOIDmode, p6, const0_rtx),
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gen_rtx_SET (VOIDmode, p6,
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gen_rtx_fmt_ee (GEU, BImode,
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r3, r2))));
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emit_insn (gen_rtx_SET (VOIDmode,
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gen_rtx_ZERO_EXTRACT (DImode, r3, GEN_INT (12),
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const0_rtx),
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const0_rtx));
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emit_insn (gen_rtx_COND_EXEC (VOIDmode,
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gen_rtx_fmt_ee (NE, VOIDmode, p6, const0_rtx),
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gen_rtx_TRAP_IF (VOIDmode, const1_rtx,
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GEN_INT (11))));
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/* Probe the Backing Store if necessary. */
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if (bs_size > 0)
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@ -3444,10 +3437,23 @@ ia64_expand_prologue (void)
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current_function_static_stack_size = current_frame_info.total_size;
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if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK)
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ia64_emit_probe_stack_range (STACK_CHECK_PROTECT,
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current_frame_info.total_size,
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current_frame_info.n_input_regs
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+ current_frame_info.n_local_regs);
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{
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HOST_WIDE_INT size = current_frame_info.total_size;
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int bs_size = BACKING_STORE_SIZE (current_frame_info.n_input_regs
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+ current_frame_info.n_local_regs);
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if (crtl->is_leaf && !cfun->calls_alloca)
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{
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if (size > PROBE_INTERVAL && size > STACK_CHECK_PROTECT)
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ia64_emit_probe_stack_range (STACK_CHECK_PROTECT,
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size - STACK_CHECK_PROTECT,
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bs_size);
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else if (size + bs_size > STACK_CHECK_PROTECT)
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ia64_emit_probe_stack_range (STACK_CHECK_PROTECT, 0, bs_size);
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}
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else if (size + bs_size > 0)
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ia64_emit_probe_stack_range (STACK_CHECK_PROTECT, size, bs_size);
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}
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if (dump_file)
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{
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|
|
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@ -10994,8 +10994,17 @@ mips_expand_prologue (void)
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if (flag_stack_usage_info)
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current_function_static_stack_size = size;
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if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK && size)
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mips_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
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if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK)
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{
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if (crtl->is_leaf && !cfun->calls_alloca)
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{
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if (size > PROBE_INTERVAL && size > STACK_CHECK_PROTECT)
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mips_emit_probe_stack_range (STACK_CHECK_PROTECT,
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size - STACK_CHECK_PROTECT);
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}
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else if (size > 0)
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mips_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
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}
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/* Save the registers. Allocate up to MIPS_MAX_FIRST_STACK_STEP
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bytes beforehand; this is enough to cover the register save area
|
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|
|
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|
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@ -21538,8 +21538,19 @@ rs6000_emit_prologue (void)
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if (flag_stack_usage_info)
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current_function_static_stack_size = info->total_size;
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if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK && info->total_size)
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rs6000_emit_probe_stack_range (STACK_CHECK_PROTECT, info->total_size);
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if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK)
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{
|
||||
HOST_WIDE_INT size = info->total_size;
|
||||
|
||||
if (crtl->is_leaf && !cfun->calls_alloca)
|
||||
{
|
||||
if (size > PROBE_INTERVAL && size > STACK_CHECK_PROTECT)
|
||||
rs6000_emit_probe_stack_range (STACK_CHECK_PROTECT,
|
||||
size - STACK_CHECK_PROTECT);
|
||||
}
|
||||
else if (size > 0)
|
||||
rs6000_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
|
||||
}
|
||||
|
||||
if (TARGET_FIX_AND_CONTINUE)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -5362,8 +5362,17 @@ sparc_expand_prologue (void)
|
|||
if (flag_stack_usage_info)
|
||||
current_function_static_stack_size = size;
|
||||
|
||||
if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK && size)
|
||||
sparc_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
|
||||
if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK)
|
||||
{
|
||||
if (crtl->is_leaf && !cfun->calls_alloca)
|
||||
{
|
||||
if (size > PROBE_INTERVAL && size > STACK_CHECK_PROTECT)
|
||||
sparc_emit_probe_stack_range (STACK_CHECK_PROTECT,
|
||||
size - STACK_CHECK_PROTECT);
|
||||
}
|
||||
else if (size > 0)
|
||||
sparc_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
|
||||
}
|
||||
|
||||
if (size == 0)
|
||||
; /* do nothing. */
|
||||
|
|
@ -5464,8 +5473,17 @@ sparc_flat_expand_prologue (void)
|
|||
if (flag_stack_usage_info)
|
||||
current_function_static_stack_size = size;
|
||||
|
||||
if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK && size)
|
||||
sparc_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
|
||||
if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK)
|
||||
{
|
||||
if (crtl->is_leaf && !cfun->calls_alloca)
|
||||
{
|
||||
if (size > PROBE_INTERVAL && size > STACK_CHECK_PROTECT)
|
||||
sparc_emit_probe_stack_range (STACK_CHECK_PROTECT,
|
||||
size - STACK_CHECK_PROTECT);
|
||||
}
|
||||
else if (size > 0)
|
||||
sparc_emit_probe_stack_range (STACK_CHECK_PROTECT, size);
|
||||
}
|
||||
|
||||
if (sparc_save_local_in_regs_p)
|
||||
emit_save_or_restore_local_in_regs (stack_pointer_rtx, SPARC_STACK_BIAS,
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue