0000495: -O<n> options not additive

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0000495

mercury

Bug

public

2020-02-04 14:02

2020-10-06 21:33

Reporter

wangp

Assigned To

Priority

normal

Severity

minor

Reproducibility

always

Status

resolved

Resolution

fixed

Product Version

Target Version

Fixed in Version

Summary

0000495: -O<n> options not additive

Description

The -O<n> options are not additive in that they will reset certain options to default values, e.g. in

    mmc --optimise-constructor-last-call -O5 -C list.m

the --optimise-constructor-last-call option has no effect.

While the behaviour could be defended, I hit the problem trying to enable -O5 on the standard library by adding:

    EXTRA_MCFLAGS = -O5

to Mmake.params. This silently disabled the --optimise-constructor-last-call option present in library/LIB_FLAGS. It turns out you need to write this instead:

    MCFLAGS += -O5

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Notes

~0001107

zs (developer)

2020-10-06 21:33

Feature implemented by 2020 september 29.

Notes

Date Modified	Username	Field	Change
Issue History
2020-02-04 14:02	wangp	New Issue
2020-09-17 03:52	zs	Assigned To	=> zs
2020-09-17 03:52	zs	Status	new => assigned
2020-10-06 21:33	zs	Status	assigned => resolved
2020-10-06 21:33	zs	Resolution	open => fixed
2020-10-06 21:33	zs	Note Added: 0001107

Issue History