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Digital-Research-Source-Code/ASSEMBLY & COMPILE TOOLS/PLM VAX COMPILER/plmvax/massage.for
Sepp J Morris 31738079c4 Upload
Digital Research
2020-11-06 18:50:37 +01:00

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C***********************************************************************
C
C MASSAGE.FOR
C
C
C D I S C L A I M E R N O T I C E
C ------------------- -----------
C
C This document and/or portions of the material and data furnished
C herewith, was developed under sponsorship of the U. S. Government.
C Neither the U.S. nor the U.S.D.O.E., nor the Leland Stanford Junior
C University, nor their employees, nor their respective contractors,
C subcontractors, or their employees, makes any warranty, express or
C implied, or assumes any liability or responsibility for accuracy,
C completeness or usefulness of any information, apparatus, product
C or process disclosed, or represents that its use will not infringe
C privately-owned rights. Mention of any product, its manufacturer,
C or suppliers shall not, nor is it intended to, imply approval, dis-
C approval, or fitness for any particular use. The U. S. and the
C University at all times retain the right to use and disseminate same
C for any purpose whatsoever. Such distribution shall be made by the
C National Energy Software Center at the Argonne National Laboratory
C and only subject to the distributee furnishing satisfactory proof
C that he has a valid license from the Intel Corporation in effect.
C
C
C-----------------------------------------------------------------------
C
C This module of the PL/M-VAX compiler 'massages' a code tree by
C (1) resolving signed/unsigned context of nodes, (2) coercing
C context if needed, (3) folding constant operations, (4) merging
C common subnodes, and (5) computing reference counts for the nodes.
C
C-----------------------------------------------------------------------
C
C R E V I S I O N H I S T O R Y
C
C 08SEP81 Alex Hunter 1. Compute reference counts. (V5.1)
C
C***********************************************************************
INTEGER*2 FUNCTION MASSAGE(CODE,DEFAULT_CONTEXT)
INCLUDE 'PLMCOM.FOR/NOLIST'
CALL RESOLVE_CONTEXT(CODE)
IF (NODE_CONTEXT(CODE).EQ.0)
# CALL SET_CONTEXT(CODE,DEFAULT_CONTEXT)
CALL COERCE_TYPES(CODE)
MASSAGE=FOLD_CONSTANTS(CODE)
MASSAGE=MERGE(MASSAGE)
CALL COMPUTE_REFERENCE_COUNTS(MASSAGE)
RETURN
END