utah rcsid 1.3 87/04/17 21:32:02: Oops -- we still want to clobber constant
conversions...

utah rcsid 1.2 87/04/17 03:31:22: Let optim2() handle conversion
optimizations for variables.

utah rcsid 1.2 87/05/02 14:44:07: Permit some tiny functions to be macros;
change select() to selectheap() to avoid Unix problems; add 'if (nerrors)'
tests to avoid output after errors; some lint tid

utah rcsid 1.2 87/05/02 14:44:07: Permit some tiny functions to be macros;
change select() to selectheap() to avoid Unix problems; add 'if (nerrors)'
tests to avoid output after errors; some lint tidbits.
utah rcsid 1.4 87/07/17 19:09:35: Minor tweaking to bring format in line
with vax version.

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utah rcsid 1.2 87/05/02 14:41:45: Push CONFIG parameters into macdefs.h;
fix lint action.
utah rcsid 1.3 87/12/10 20:26:31: The single-precision compiler is the
standard tahoe compiler; delete al

utah rcsid 1.2 87/05/02 14:41:45: Push CONFIG parameters into macdefs.h;
fix lint action.
utah rcsid 1.3 87/12/10 20:26:31: The single-precision compiler is the
standard tahoe compiler; delete all the junk for two compilers.

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utah rcsid 1.30 87/07/06 13:19:17: Preserve LONG and ULONG through constant
expression folding.

utah rcsid 1.29 87/04/24 18:51:39: Changed tymatch() to force propagation
of unsigned type from one operand to another in an expression where only
one operand is unsigned. This cuts down on the numb

utah rcsid 1.29 87/04/24 18:51:39: Changed tymatch() to force propagation
of unsigned type from one operand to another in an expression where only
one operand is unsigned. This cuts down on the number of combinations of
types which need to be handled in the code table in the second pass, at a
cost of some flexibility.

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utah rcsid 1.28 87/04/17 21:32:38: Simplify handling of integer promotions
in conval().

utah rcsid 1.27 87/04/01 14:00:45: Remove TVOID case in moditype so that
void functions can properly be converted to pointers to void functions when
used as operands.

utah rcsid 1.26 87/03/24 01:47:26: Remove tahoe ifdefs; the code table
handles this correctly now.

utah rcsid 1.25 87/03/18 00:09:50: From Sam Kendall (sam@think.com): don't
let structs, unions, floats, doubles or voids be cast into pointers.

utah rcsid 1.24 87/01/15 05:29:21: Fix brace balancing in ifdefs so that
ctags works.

utah rcsid 1.23 87/01/15 02:12:21: Some minor lint fixes.

utah rcsid 1.22 86/11/28 21:21:08: Fix test for type puns when comparing
constant enum values. Also moved counter declaration into an ifdef. Lint
IS worth something!

utah rcsid 1.21 86/11/27 19:34:28: upgrade to ucb sid 4.11 -- 'take care
with unsigned constant compression (for tahoe); put back PRTDCON
redefinition; ifdef asgop optimizations (tahoe can't handle

utah rcsid 1.21 86/11/27 19:34:28: upgrade to ucb sid 4.11 -- 'take care
with unsigned constant compression (for tahoe); put back PRTDCON
redefinition; ifdef asgop optimizations (tahoe can't handle them in code
generation)' (sam).

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utah rcsid 1.20 86/11/21 22:22:26: Changed 'illegal lhs of assignment
operator' to 'illegal lvalue operand...' because there are unary assignment
operators like ++ and --.

utah rcsid 1.19 86/11/10 09:21:58: More of the same -- unsigned compares
between constants weren't unsigned.

utah rcsid 1.18 86/11/08 20:51:18: Argh -- restore commented-out cast which
bollixed unsigned -> double (and float) conversions for constants.

utah rcsid 1.17 86/08/11 09:27:37: Oops -- void type is now represented by
MVOID, not 0, in opact()...

utah rcsid 1.16 86/08/05 19:59:17: Permit void expressions in the colon
part of a question mark operator (only, of course, if both subexpressions
are type void).

utah rcsid 1.15 86/07/11 13:19:14: More changes for enums. Did some tuning
in opact() to remove clutter and handle unary operators.

utah rcsid 1.14 86/07/09 19:15:24: Guy Harris's fix for making chkpun()
distinguish char **cpp and char c2a[10][20].

utah rcsid 1.13 86/07/08 16:05:37: Get more determined about 'usual type
conversions' in conval() -- if we don't have the usual simple case, do the
same type guessing that we would perform for non-co

utah rcsid 1.13 86/07/08 16:05:37: Get more determined about 'usual type
conversions' in conval() -- if we don't have the usual simple case, do the
same type guessing that we would perform for non-constants.

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utah rcsid 1.12 86/07/03 13:46:59: More tuning of enums hack. Remove
warning about ordering in chkpun(), change enum types to int and fall
through to general case.

utah rcsid 1.11 86/07/02 22:40:02: First attack on enum bugs. Eliminates
all errors due to enum type &'clashes' and drastically reduces warnings.
Only enum vs. enum clashes and enum comparisons are

utah rcsid 1.11 86/07/02 22:40:02: First attack on enum bugs. Eliminates
all errors due to enum type &'clashes' and drastically reduces warnings.
Only enum vs. enum clashes and enum comparisons are deemed worth a warning
now.

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utah rcsid 1.14 87/11/26 16:30:10: Make all ordinary floating constants
have type double, like ANSI. Also like ANSI, permit 'f' or 'F' suffix on
floating constants to indicate a float type constant.