cmd/compile: internal compiler error: Int64Val(10000000000000000000) (dev.regabi branch) #43480
Description
What version of Go are you using (go version)?
$ go version go version devel +8fc44cf0fa Sun Jan 3 19:48:20 2021 +0000 linux/amd64
Does this issue reproduce with the latest release?
No, only on the regabi branch.
What operating system and processor architecture are you using (go env)?
go env Output
$ go env GO111MODULE="" GOARCH="amd64" GOBIN="" GOCACHE="/home/jake/.cache/go-build" GOENV="/home/jake/.config/go/env" GOEXE="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/home/jake/go/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/home/jake/go" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/home/jake/zikaeroh/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/home/jake/zikaeroh/go/pkg/tool/linux_amd64" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/home/jake/decimal/go.mod" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build867052434=/tmp/go-build -gno-record-gcc-switches" GOROOT/bin/go version: go version devel +8fc44cf0fa Sun Jan 3 19:48:20 2021 +0000 linux/amd64 GOROOT/bin/go tool compile -V: compile version devel +8fc44cf0fa Sun Jan 3 19:48:20 2021 +0000 uname -sr: Linux 5.10.4-zen2-1-zen /usr/lib/libc.so.6: GNU C Library (GNU libc) release release version 2.32. gdb --version: GNU gdb (GDB) 10.1
What did you do?
Cloned https://github.com/ericlagergren/decimal, built the dev.regabi branch, and did a go build in the decimal checkout.
What did you expect to see?
No errors.
What did you see instead?
# github.com/ericlagergren/decimal/internal/arith
internal/arith/pow.go:65:17: internal compiler error: Int64Val(10000000000000000000)
goroutine 1 [running]:
runtime/debug.Stack(0xe8d1a0, 0xc00000e018, 0x0)
/home/jake/zikaeroh/go/src/runtime/debug/stack.go:24 +0x9f
cmd/compile/internal/base.FatalfAt(0x4902000000080, 0xd5a11d, 0xc, 0xc0001055e8, 0x1, 0x1)
/home/jake/zikaeroh/go/src/cmd/compile/internal/base/print.go:227 +0x1b9
cmd/compile/internal/base.Fatalf(...)
/home/jake/zikaeroh/go/src/cmd/compile/internal/base/print.go:196
cmd/compile/internal/ir.Int64Val(0xe9bb50, 0xc000069c20, 0xde0b6b3a7640000)
/home/jake/zikaeroh/go/src/cmd/compile/internal/ir/val.go:137 +0x105
cmd/compile/internal/walk.(*exprSwitch).flush(0xc0004db540)
/home/jake/zikaeroh/go/src/cmd/compile/internal/walk/switch.go:207 +0x4fa
cmd/compile/internal/walk.(*exprSwitch).Emit(0xc0004db540, 0xc0005d5ae0)
/home/jake/zikaeroh/go/src/cmd/compile/internal/walk/switch.go:139 +0x2f
cmd/compile/internal/walk.walkSwitchExpr(0xc0005d5a80)
/home/jake/zikaeroh/go/src/cmd/compile/internal/walk/switch.go:106 +0x910
cmd/compile/internal/walk.walkSwitch(0xc0005d5a80)
/home/jake/zikaeroh/go/src/cmd/compile/internal/walk/switch.go:29 +0x46
cmd/compile/internal/walk.walkStmt(0xe9d8d8, 0xc0005d5a80, 0xe9c210, 0xc0005f4d90)
/home/jake/zikaeroh/go/src/cmd/compile/internal/walk/stmt.go:157 +0xc7a
cmd/compile/internal/walk.walkStmtList(0xc000081000, 0x31, 0x40)
/home/jake/zikaeroh/go/src/cmd/compile/internal/walk/stmt.go:172 +0x65
cmd/compile/internal/walk.Walk(0xc0004f4b40)
/home/jake/zikaeroh/go/src/cmd/compile/internal/walk/walk.go:44 +0xb3
cmd/compile/internal/gc.compile(0xc0004f4b40)
/home/jake/zikaeroh/go/src/cmd/compile/internal/gc/compile.go:65 +0x54
cmd/compile/internal/gc.funccompile(0xc0004f4b40)
/home/jake/zikaeroh/go/src/cmd/compile/internal/gc/compile.go:53 +0xc7
cmd/compile/internal/gc.Main(0xd7ed10)
/home/jake/zikaeroh/go/src/cmd/compile/internal/gc/main.go:323 +0x115a
main.main()
/home/jake/zikaeroh/go/src/cmd/compile/main.go:54 +0xb1
/cc @mdempsky