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MI Parser can't read in block frequencies #29123

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rovka opened this issue Jul 28, 2016 · 3 comments
Closed

MI Parser can't read in block frequencies #29123

rovka opened this issue Jul 28, 2016 · 3 comments
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bugzilla Issues migrated from bugzilla llvm:codegen

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@rovka
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rovka commented Jul 28, 2016

Bugzilla Link 28751
Resolution FIXED
Resolved on Nov 18, 2016 13:51
Version trunk
OS Linux
Attachments mir file that can't be read by llc
CC @ddcc,@MatzeB,@qcolombet

Extended Description

llc -mtriple=aarch64-unknown buggy.mir
error: buggy.mir:50:39: unexpected character '/'
successors: %bb.1.true(0x40000000 / 0x80000000 = 50.00%), %bb.2.false(0x40000000 / 0x80000000 = 50.00%)
^

LLVM ERROR: Unable to initialize machine function

The input mir file was obtained by running llc -mtriple=aarch64-unknown -stop-after=block-placement <some .ll file> -o buggy.mir.

If we remove the block frequencies from the file, it manages to read it, but the output that it produces also contains block frequencies, so it can't be read back in.
@majnemer
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Mannequin

majnemer mannequin commented Jul 30, 2016

*** Bug llvm/llvm-bugzilla-archive#28774 has been marked as a duplicate of this bug. ***

@llvmbot
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llvmbot commented Nov 18, 2016

This should be fixed by r287368

@majnemer
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Mannequin

majnemer mannequin commented Nov 26, 2021

mentioned in issue llvm/llvm-bugzilla-archive#28774

@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 10, 2021
This issue was closed.
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@rovka @llvmbot