cmd/compile: panic in cmd/compile/internal/gc.typecheck1 #27771
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It helps greatly if you link to the exact project or mention the exact steps to build it. Is it this https://github.com/CmdrVasquess/BCplus ? What are the exact steps to clone and build it ? |
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https://github.com/CmdrVasquess/BCplus is the project that produces the crash. Take the commit f2593416ec5faa5155d1b0de256771b9abf088cb into a clean go environment. Then 'go build' makes the compile crash – at least on my machine. The following patch to This is the go.mod from a crashing build (crashes every time): |
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/cc @griesemer |
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Could it be the return parameter name |
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Just added some information as comment to the issue: Project Link, Git
commit label, go.mod
Am Donnerstag, den 20.09.2018, 01:14 -0700 schrieb Agniva De Sarker:
… It helps greatly if you link to the exact project or mention the
exact steps to build it.
Is it this https://github.com/CmdrVasquess/BCplus ?
What are the exact steps to clone and build it ?
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What did you do?
Working on my project BCplus (here on github) I changed the code then 'go build'
What did you expect to see?
Generally the build completes (sometimes with errors in my code, sometimes with success;)
What did you see instead?
I see ICE:
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x70 pc=0xb7bbae]
goroutine 1 [running]:
cmd/compile/internal/gc.typecheck1(0xc00048c300, 0x2, 0xa8c9bb)
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:1270 +0x3ece
cmd/compile/internal/gc.typecheck(0xc00048c300, 0x2, 0xc000489701)
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:238 +0x6ad
cmd/compile/internal/gc.typecheck1(0xc00048c480, 0x2, 0x5002000000005)
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:584 +0x2c8a
cmd/compile/internal/gc.typecheck(0xc00048c480, 0x2, 0x0)
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:238 +0x6ad
cmd/compile/internal/gc.typecheck1(0xc00048c280, 0x1, 0x0)
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:2051 +0xaaf9
cmd/compile/internal/gc.typecheck(0xc00048c280, 0x1, 0xb8f17f)
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:238 +0x6ad
cmd/compile/internal/gc.typecheckslice(0xc000058140, 0x5, 0x8, 0x1)
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:68 +0x50
cmd/compile/internal/gc.Main(0xcc0f50)
/usr/local/go/src/cmd/compile/internal/gc/main.go:518 +0x2059
main.main()
/usr/local/go/src/cmd/compile/main.go:51 +0x96
System details
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