Merge revs 1.2 (-fformat-extensions), 1.7 (FORCE_OPTIMIZATION_DOWNGRADE knob),
1.14 (-O/-O1 optimize alignment for time, not size). Back out r1.22 which used to enable warnings in system headers by default.
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b4b53e1576
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4ff5474ba8
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=122199
@ -1410,7 +1410,7 @@ int inhibit_warnings = 0;
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/* Don't suppress warnings from system headers. -Wsystem-headers. */
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int warn_system_headers = 1;
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int warn_system_headers = 0;
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/* Print various extra warnings. -W. */
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@ -2823,7 +2823,8 @@ rest_of_compilation (decl)
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tem = cse_main (insns, max_reg_num (), 0, rtl_dump_file);
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if (tem)
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rebuild_jump_labels (insns);
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purge_all_dead_edges (0);
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if (purge_all_dead_edges (0))
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delete_unreachable_blocks ();
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delete_trivially_dead_insns (insns, max_reg_num ());
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@ -3468,6 +3469,23 @@ rest_of_compilation (decl)
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#endif
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#ifdef STACK_REGS
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#if defined (HAVE_ATTR_length)
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/* If flow2 creates new instructions which need splitting
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and scheduling after reload is not done, they might not be
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splitten until final which doesn't allow splitting
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if HAVE_ATTR_length. */
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#ifdef INSN_SCHEDULING
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if (optimize && !flag_schedule_insns_after_reload)
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#else
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if (optimize)
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#endif
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{
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timevar_push (TV_SHORTEN_BRANCH);
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split_all_insns (1);
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timevar_pop (TV_SHORTEN_BRANCH);
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}
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#endif
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timevar_push (TV_REG_STACK);
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open_dump_file (DFI_stack, decl);
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