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cmd/compile: all linux-386 builders are broken #33906

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mvdan opened this issue Aug 28, 2019 · 2 comments
Closed

cmd/compile: all linux-386 builders are broken #33906

mvdan opened this issue Aug 28, 2019 · 2 comments
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FrozenDueToAge NeedsFix The path to resolution is known, but the work has not been done. Soon This needs to be done soon. (regressions, serious bugs, outages)

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@mvdan
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mvdan commented Aug 28, 2019

##### ../test
linux/386/387 
 # command-line-arguments
codegen/mathbits.go:354:2: internal compiler error: 'IterateBits16': not lowered: v12, Ctz16NonZero INT UINT16

goroutine 1 [running]:
runtime/debug.Stack(0x8b3bea0, 0x9c0e0e8, 0x0)
	/workdir/go/src/runtime/debug/stack.go:24 +0x83
cmd/compile/internal/gc.Fatalf(0x9f565c8, 0x8, 0x9c0c070, 0x2, 0x2)
	/workdir/go/src/cmd/compile/internal/gc/subr.go:188 +0x26a
cmd/compile/internal/gc.(*ssafn).Fatalf(0x9e29b60, 0x2, 0x162021, 0x89928aa, 0x2, 0x9f9eef8, 0x1, 0x1)
	/workdir/go/src/cmd/compile/internal/gc/ssa.go:6159 +0x14a
cmd/compile/internal/ssa.(*Func).Fatalf(...)
	/workdir/go/src/cmd/compile/internal/ssa/func.go:617
cmd/compile/internal/ssa.checkLower(0x9fc2840)
	/workdir/go/src/cmd/compile/internal/ssa/lower.go:36 +0x301
cmd/compile/internal/ssa.Compile(0x9fc2840)
	/workdir/go/src/cmd/compile/internal/ssa/compile.go:92 +0x865
cmd/compile/internal/gc.buildssa(0x9df3b00, 0x0, 0x0)
	/workdir/go/src/cmd/compile/internal/gc/ssa.go:289 +0x9eb
cmd/compile/internal/gc.compileSSA(0x9df3b00, 0x0)
	/workdir/go/src/cmd/compile/internal/gc/pgen.go:298 +0x3a
cmd/compile/internal/gc.compile(0x9df3b00)
	/workdir/go/src/cmd/compile/internal/gc/pgen.go:277 +0x2c1
cmd/compile/internal/gc.funccompile(0x9df3b00)
	/workdir/go/src/cmd/compile/internal/gc/pgen.go:222 +0xad
cmd/compile/internal/gc.Main(0x89bd3b0)
	/workdir/go/src/cmd/compile/internal/gc/main.go:685 +0x2cef
main.main()
	/workdir/go/src/cmd/compile/main.go:51 +0x93

# go run run.go -- codegen/mathbits.go
exit status 2
FAIL	codegen/mathbits.go	0.123s

The culprit looks to be https://go-review.googlesource.com/c/go/+/189277. CC @benshi001 @martisch @randall77

Can you fix it today? If not, I'll send a revert this evening UTC.

When re-submiting or fixing, please make sure to test it on a 32-bit linux machine or VM.

@mvdan mvdan added NeedsFix The path to resolution is known, but the work has not been done. Soon This needs to be done soon. (regressions, serious bugs, outages) labels Aug 28, 2019
@ALTree
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ALTree commented Aug 28, 2019

#33902

@mvdan
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mvdan commented Aug 28, 2019

Oh, my bad! I did search quickly, but clearly not well enough. In the future, please leave a comment on the CL as well, as I would have definitely seen it there :)

@mvdan mvdan closed this as completed Aug 28, 2019
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