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[Ada] Minor fixes and tweaks to comments in the Repinfo unit

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2018-05-28  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

	* repinfo.ads: Minor fixes and tweaks in comments.

From-SVN: r260844
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Eric Botcazou 2018-05-28 08:56:20 +00:00 committed by Pierre-Marie de Rodat
parent 575e47bf05
commit ab4dad4912
2 changed files with 13 additions and 9 deletions
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4
gcc/ada/ChangeLog
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@ -1,3 +1,7 @@
2018-05-28 Eric Botcazou <ebotcazou@adacore.com>
* repinfo.ads: Minor fixes and tweaks in comments.
2018-05-28 Eric Botcazou <ebotcazou@adacore.com>
* repinfo.adb (List_GCC_Expression): Remove Valop and replace calls to

18
gcc/ada/repinfo.ads
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@ -30,10 +30,10 @@
------------------------------------------------------------------------------
-- This package contains the routines to handle back annotation of the
-- tree to fill in representation information, and also the routine used
-- by -gnatR to print this information. This unit is used both in the
-- tree to fill in representation information, and also the routines used
-- by -gnatR to output this information. This unit is used both in the
-- compiler and in ASIS (it is used in ASIS as part of the implementation
-- of the data decomposition annex).
-- of the Data Decomposition Annex).
with Types; use Types;
with Uintp; use Uintp;
@ -68,7 +68,7 @@ package Repinfo is
-- needed in the case of sizes not known till runtime.
-----------------------------
-- Back-Annotation by Gigi --
-- Back Annotation by Gigi --
-----------------------------
-- The following interface is used by gigi if Frontend_Layout is False
@ -82,13 +82,13 @@ package Repinfo is
-- For E_Array_Type entities, the Component_Size field
-- For all record and array types and subtypes, the Esize field,
-- which contains the Size (more accurately the Object_Size) value
-- for the type or subtype.
-- For all record and array types and subtypes, the Esize and RM_Size
-- fields, which respectively contain the Object_Size and Value_Size
-- values for the type or subtype.
-- For E_Component and E_Discriminant entities, the Esize (size
-- of component) and Component_Bit_Offset fields. Note that gigi
-- does not back annotate Normalized_Position/First_Bit.
-- does not generally back annotate Normalized_Position/First_Bit.
-- There are three cases to consider:
@ -111,7 +111,7 @@ package Repinfo is
-- Note: the extended back annotation for the dynamic case is needed only
-- for -gnatR3 output, and for proper operation of the ASIS DDA. Since it
-- can be expensive to do this back annotation (for discriminated records
-- with many variable length arrays), we only do the full back annotation
-- with many variable-length arrays), we only do the full back annotation
-- in -gnatR3 mode, or ASIS mode. In any other mode, the back-end just sets
-- the value to Uint_Minus_1, indicating that the value of the attribute
-- depends on discriminant information, but not giving further details.