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cmd/compile: out of fixed registers #11352

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dvyukov opened this issue Jun 23, 2015 · 3 comments
Closed

cmd/compile: out of fixed registers #11352

dvyukov opened this issue Jun 23, 2015 · 3 comments
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Go1.6

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@dvyukov
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dvyukov commented Jun 23, 2015

The following program:

package a
var a, b = 0, 0-^^^^^^^^^^a

crashes go tool compile with:

tmp.go:2: internal compiler error: out of fixed registers

go version devel +514014c Thu Jun 18 15:54:35 2015 +0200 linux/amd64
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CL https://golang.org/cl/11308 mentions this issue.

@ianlancetaylor ianlancetaylor added this to the Go1.6 milestone Jul 11, 2015
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CL https://golang.org/cl/13110 mentions this issue.

gopherbot pushed a commit that referenced this issue Aug 4, 2015
@tzneal
[dev.ssa] cmd/compile: simplify repeated OCOM
38ed6c1 
Rewrite ^{n}x to be ^{n % 2}x.  This will eventually resolve a fuzz
issue that breaks v1.5.

Updates #11352

Change-Id: I1b3f93872d06222f9ff5f6fd5580178ebaf4c003
Reviewed-on: https://go-review.googlesource.com/13110
Reviewed-by: Keith Randall <khr@golang.org>
@rsc
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rsc commented Nov 4, 2015

CL 13110 fixed this in the dev.ssa branch. It's not worth fixing in the current code.

@rsc rsc closed this as completed Nov 4, 2015
@brian-brazil brian-brazil mentioned this issue Mar 29, 2016
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@golang golang locked and limited conversation to collaborators Nov 4, 2016
@rsc rsc removed their assignment Jun 23, 2022
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