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cmd/compile: internal compiler error: out of fixed registers #8012

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dvyukov opened this issue May 16, 2014 · 8 comments
Closed

cmd/compile: internal compiler error: out of fixed registers #8012

dvyukov opened this issue May 16, 2014 · 8 comments
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@dvyukov
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dvyukov commented May 16, 2014 

go version devel +c9bcacf2ba33 Wed May 14 19:24:00 2014 +0400 + linux/amd64

Program:
http://play.golang.org/p/s5dPvO0hf7

$ go build test.go
0 0
1 0
2 0
3 519444
4 0
5 519444
6 0
7 0
8 519444
9 519444
10 519832
11 519444
12 519444
13 519444
14 519444
15 519444
test.go:21: internal compiler error: out of fixed registers

arm and 386 compile successfully.
@ianlancetaylor
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Comment 1:

Labels changed: added repo-main, release-go1.4.

@dvyukov
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dvyukov commented May 16, 2014

Comment 2:

I have not tried to minimize it. The minimized case can be more realistic.

@rsc
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rsc commented May 16, 2014

Comment 3:

Status changed to Accepted.

@dvyukov
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dvyukov commented May 21, 2014

Comment 4:

Here is another program that leads to a similar crash.

Attachments:

  1. out_of_registers.zip (6505 bytes)

@jmhodges
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Comment 5:

I've been able to transform that first one into a simple case:
http://play.golang.org/p/Nh8feuPSmH
Deleting any one of those "== false"  or the id6 check will allow it to compile. Cute!

@extemporalgenome
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Comment 6:

On the playground, three of those "== false" suffices need to get deleted to compile.

@rsc
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rsc commented Sep 15, 2014

Comment 7:

Labels changed: added release-none, removed release-go1.4.

@rsc rsc added this to the Unplanned milestone Apr 10, 2015
@rsc rsc changed the title cmd/gc: internal compiler error: out of fixed registers cmd/compile: internal compiler error: out of fixed registers Jun 8, 2015
@randall77
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Fixed with SSA backend.

@golang golang locked and limited conversation to collaborators Oct 7, 2017
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@jmhodges @rsc @extemporalgenome @dvyukov @ianlancetaylor @randall77 @gopherbot