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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (STDCXX-695) [HP aCC 6.15] lots of noise due to compiler remarks
Date Thu, 27 Mar 2008 23:22:24 GMT

    [ https://issues.apache.org/jira/browse/STDCXX-695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12580552#action_12580552
] 

sebor edited comment on STDCXX-695 at 3/27/08 4:22 PM:
--------------------------------------------------------------

Here's nicer output from the duplicate STDCXX-788:

Latest HP aCC 6.16 builds produce many remarks making them exceedingly noisy:
{noformat}
$ gunzip -c hpux-11.31-ia64-acc-6.16-12D-637671-log.gz | grep "remark #" | wc -l
4187
{noformat}

The breakdown by remark produced by the following script is in the table below:
{noformat}
$ W=`gunzip -c hpux-11.31-ia64-acc-6.16-12D-637671-log.gz | sed -n "s/.* remark #\([1-9][0-9]*\)-D:.*/\1/p"
| sort | uniq`; \
  for w in $W; do \
    printf "%s " $w && gunzip -c hpux-11.31-ia64-acc-6.16-12D-637671-log.gz | grep
" remark #$w-D:" | wc -l; \
  done
{noformat}

||remark||count||description||
|2177|10|variable was declared but never referenced|
|2550|28|variable was set but never used|
|2826|44|variable was never referenced|
|2961|1|use of a type with no linkage to declare a variable with linkage|
|3348|799|declaration hides variable|
|4217|3|comparison of enum (represented as an unsigned integer) with zero|
|4219|251|64 bit migration: type conversion may truncate value|
|4234|28|type conversion may lose significant bits|
|4239|2|case type mismatch with switch expression type|
|4244|4|extern storage class used with a function definition|
|4248|4|comparison of unsigned integer with a signed integer|
|4271|712|type conversion may lose sign|
|4273|18|floating-point equality and inequality comparisons may be inappropriate due to roundoff
common in floating-point computation|
|4278|3|the subexpression in logical expression is a constant|
|4282|1|virtual function is called from constructor/destructor|
|4283|3|access global variable in constructor|
|4296|779|operation on boolean type|
|4297|1220|boolean value is used as array index|
|4298|124|64 bit migration: addition result could be truncated before cast to bigger sized
type|
|4299|20|64 bit migration: multiply result could be truncated before cast to bigger sized
type|
|4300|72|Overflow while computing constant in left shift operation|
|4315|61|loop without body, did you insert an extra ';'?|

      was (Author: sebor):
    Here's nicer output from the duplicate STDCXX-788:

Latest HP aCC 6.16 builds produce many remarks making them exceedingly noisy:
{noformat}
$ gunzip -c hpux-11.31-ia64-acc-6.16-12D-637671-log.gz | grep "remark #" | wc -l
4187
{noformat}

The breakdown by remark produced by the following script is in the table below:
{noformat}
$ W=`gunzip -c hpux-11.31-ia64-acc-6.16-12D-637671-log.gz | sed -n "s/.* remark #\([1-9][0-9]*\)-D:.*/\1/p"
| sort | uniq`; \
  for w in $W; do \
    printf "%s " $w && gunzip -c hpux-11.31-ia64-acc-6.16-12D-637671-log.gz | grep
" remark #$w-D:" | wc -l; \
  done
{noformat}

||warning||count||description||
|2177|10|variable was declared but never referenced|
|2550|28|variable was set but never used|
|2826|44|variable was never referenced|
|2961|1|use of a type with no linkage to declare a variable with linkage|
|3348|799|declaration hides variable|
|4217|3|comparison of enum (represented as an unsigned integer) with zero|
|4219|251|64 bit migration: type conversion may truncate value|
|4234|28|type conversion may lose significant bits|
|4239|2|case type mismatch with switch expression type|
|4244|4|extern storage class used with a function definition|
|4248|4|comparison of unsigned integer with a signed integer|
|4271|712|type conversion may lose sign|
|4273|18|floating-point equality and inequality comparisons may be inappropriate due to roundoff
common in floating-point computation|
|4278|3|the subexpression in logical expression is a constant|
|4282|1|virtual function is called from constructor/destructor|
|4283|3|access global variable in constructor|
|4296|779|operation on boolean type|
|4297|1220|boolean value is used as array index|
|4298|124|64 bit migration: addition result could be truncated before cast to bigger sized
type|
|4299|20|64 bit migration: multiply result could be truncated before cast to bigger sized
type|
|4300|72|Overflow while computing constant in left shift operation|
|4315|61|loop without body, did you insert an extra ';'?|
  
> [HP aCC 6.15] lots of noise due to compiler remarks
> ---------------------------------------------------
>
>                 Key: STDCXX-695
>                 URL: https://issues.apache.org/jira/browse/STDCXX-695
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: Build
>    Affects Versions: 4.2.0
>         Environment: HP aCC 6.15
>            Reporter: Martin Sebor
>            Assignee: Martin Sebor
>             Fix For: 4.2.1
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> The latest HP compiler on IPF issues lots of remarks, making our builds exceedingly noisy.
> Here's a breakdown of all the remarks we get in a recent 12S build along with the number
of each:
> {noformat}
> F=hpux-11.31-ia64-acc-6.15-12S-610576-log; \
> R=`sed -n "s/.*: remark \(#[1-9][0-9]*-.\): .*/\1/p" $F | sort | uniq`; \
> for r in $R; do \
>     n=`grep ": remark $r: " $F | wc -l`; echo $r: $n; \
> done
> #2177-D: 8   variable was declared but never referenced
> #2181-D: 9   argument is incompatible with corresponding format string conversion
> #2550-D: 28   variable was set but never used
> #2826-D: 44   parameter was never referenced
> #2961-D: 1   use of a type with no linkage to declare a variable with linkage
> #3235-D: 1   nonstandard conversion between pointer to function and pointer to data
> #3348-D: 799   declaration hides constant or variable
> #4217-D: 3   comparison of enum (represented as an unsigned integer) with zero
> #4219-D: 250   64 bit migration: type conversion may truncate value
> #4234-D: 28   type conversion may lose significant bits
> #4239-D: 2   case type mismatch with switch expression type
> #4244-D: 4   extern storage class used with a function definition
> #4248-D: 4   comparison of unsigned integer with a signed integer
> #4271-D: 780   type conversion may lose sign
> #4273-D: 18   floating-point equality and inequality comparisons may be inappropriate
due to roundoff common in floating-point computation
> #4278-D: 3   the subexpression in logical expression is a constant
> #4282-D: 34   virtual function is called from constructor/destructor
> #4283-D: 3   access global variable in constructor
> #4296-D: 695   arithmetic operation on boolean type
> #4297-D: 1220   boolean value is used as array index
> #4298-D: 124   64 bit migration: addition result could be truncated before cast to bigger
sized type
> #4299-D: 20   64 bit migration: multiply result could be truncated before cast to bigger
sized type
> #4300-D: 60   Overflow while computing constant in left shift operation
> #4315-D: 60   while loop without body, did you insert an extra ';'?
> {noformat}

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