common.opt (fvar-tracking-uninit): Document.
* common.opt (fvar-tracking-uninit): Document. * toplev.c (process_options): Fix handling of flag_var_tracking_uninit. * config/darwin.c (darwin_override_options): Likewise. From-SVN: r193458
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@ -1,3 +1,9 @@
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2012-11-12 Eric Botcazou <ebotcazou@adacore.com>
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* common.opt (fvar-tracking-uninit): Document.
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* toplev.c (process_options): Fix handling of flag_var_tracking_uninit.
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* config/darwin.c (darwin_override_options): Likewise.
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2012-11-11 Eric Botcazou <ebotcazou@adacore.com>
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* config/sparc/sparc.h (AS_NIAGARA3_FLAG): Tweak.
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@ -2112,6 +2112,10 @@ fvar-tracking-assignments-toggle
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Common Report Var(flag_var_tracking_assignments_toggle) Optimization
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Toggle -fvar-tracking-assignments
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; Positive if we should track uninitialized variables, negative if
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; we should run the var-tracking pass only to discard debug
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; annotations. When flag_var_tracking_uninit == AUTODETECT_VALUE it
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; will be set according to flag_var_tracking.
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fvar-tracking-uninit
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Common Report Var(flag_var_tracking_uninit) Optimization
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Perform variable tracking and also tag variables that are uninitialized
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@ -3024,12 +3024,12 @@ darwin_override_options (void)
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darwin_emit_branch_islands = true;
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}
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if (flag_var_tracking
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if (flag_var_tracking_uninit == 0
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&& generating_for_darwin_version >= 9
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&& (flag_gtoggle ? (debug_info_level == DINFO_LEVEL_NONE)
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: (debug_info_level >= DINFO_LEVEL_NORMAL))
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&& write_symbols == DWARF2_DEBUG)
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flag_var_tracking_uninit = 1;
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flag_var_tracking_uninit = flag_var_tracking;
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if (MACHO_DYNAMIC_NO_PIC_P)
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{
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@ -1494,12 +1494,15 @@ process_options (void)
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/* If the user specifically requested variable tracking with tagging
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uninitialized variables, we need to turn on variable tracking.
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(We already determined above that variable tracking is feasible.) */
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if (flag_var_tracking_uninit)
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if (flag_var_tracking_uninit == 1)
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flag_var_tracking = 1;
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if (flag_var_tracking == AUTODETECT_VALUE)
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flag_var_tracking = optimize >= 1;
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if (flag_var_tracking_uninit == AUTODETECT_VALUE)
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flag_var_tracking_uninit = flag_var_tracking;
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if (flag_var_tracking_assignments == AUTODETECT_VALUE)
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flag_var_tracking_assignments = flag_var_tracking
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&& !(flag_selective_scheduling || flag_selective_scheduling2);
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