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"Cannot perform PGO build because llvm-profdata was not found in PATH" error upon make #72170

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gpshead opened this issue Sep 6, 2016 · 4 comments
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"Cannot perform PGO build because llvm-profdata was not found in PATH" error upon make #72170

gpshead opened this issue Sep 6, 2016 · 4 comments
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gpshead commented Sep 6, 2016

BPO 27983
Nosy @brettcannon, @gpshead
Dependencies
  • bpo-26359: CPython build options for out-of-the box performance
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = 'https://github.com/gpshead'
closed_at = <Date 2016-09-08.07:10:26.145>
created_at = <Date 2016-09-06.23:01:40.382>
labels = []
title = '"Cannot perform PGO build because llvm-profdata was not found in PATH" error upon make'
updated_at = <Date 2016-09-08.07:10:26.144>
user = 'https://github.com/gpshead'

    bugs.python.org fields:

    activity = <Date 2016-09-08.07:10:26.144>
actor = 'gregory.p.smith'
assignee = 'gregory.p.smith'
closed = True
closed_date = <Date 2016-09-08.07:10:26.145>
closer = 'gregory.p.smith'
components = []
creation = <Date 2016-09-06.23:01:40.382>
creator = 'gregory.p.smith'
dependencies = ['26359']
files = []
hgrepos = []
issue_num = 27983
keywords = []
message_count = 4.0
messages = ['274657', '274660', '274908', '274980']
nosy_count = 4.0
nosy_names = ['brett.cannon', 'gregory.p.smith', 'python-dev', 'alecsandru.patrascu']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue27983'
versions = ['Python 2.7']
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    gpshead commented Sep 6, 2016

    patch in bpo-26307 (which should be in soon) and do the following:

    $ CC=clang ../3.6/configure --with-optimizations
$ make profile-opt
Error: Cannot perform PGO build because llvm-profdata was not found in PATH
Please add it to PATH and run ./configure again
Makefile:481: recipe for target 'profile-opt' failed

    We can make this experience better. It needs to

    (1) Become a configure time error, and
    (2) Do a better job of finding llvm-profdata (which exists in ${PATH} as "llvm-profdata-3.8" on Ubuntu 16.04).

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    gpshead commented Sep 6, 2016

    i meant bpo-26359 above, not 26307.

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    python-dev mannequin commented Sep 7, 2016

    New changeset 279450d88fb0 by Gregory P. Smith in branch '3.5':
    Fixes issue# 27983: Cause lack of llvm-profdata tool when using clang -
    https://hg.python.org/cpython/rev/279450d88fb0

    New changeset 9f2467e13c98 by Gregory P. Smith in branch 'default':
    Fixes Issue bpo-27983: Cause lack of llvm-profdata tool when using clang as
    https://hg.python.org/cpython/rev/9f2467e13c98

    @gpshead gpshead self-assigned this Sep 7, 2016
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    python-dev mannequin commented Sep 8, 2016

    New changeset 3f04287e7bea by Gregory P. Smith in branch '2.7':
    Fixes issue# 27983: Cause lack of llvm-profdata tool when using clang -
    https://hg.python.org/cpython/rev/3f04287e7bea

    @gpshead gpshead closed this as completed Sep 8, 2016
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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