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cmd/compile: linux/ppc64: internal compiler error: 'acosh': value v38 has an AuxInt that encodes a NaN #38880

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josharian opened this issue May 5, 2020 · 1 comment

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@josharian
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@josharian josharian commented May 5, 2020

Reproduce:

GOOS=linux GOARCH=ppc64 go build -a -gcflags=all=-d=ssa/check/seed=6419 std cmd

Result:

# math
math/acosh.go:51:13: internal compiler error: 'acosh': value v38 has an AuxInt that encodes a NaN

goroutine 1 [running]:
runtime/debug.Stack(0x1945c20, 0xc0000ac008, 0x0)
	/Users/josh/go/tip/src/runtime/debug/stack.go:24 +0x9f
cmd/compile/internal/gc.Fatalf(0xc00058f290, 0x2f, 0xc000747f20, 0x2, 0x2)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/subr.go:193 +0x1b0
cmd/compile/internal/gc.(*ssafn).Fatalf(0xc00017bad0, 0x330d000000003, 0x185b258, 0x29, 0xc000416780, 0x1, 0x1)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/ssa.go:6839 +0x1a5
cmd/compile/internal/ssa.(*Func).Fatalf(...)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/func.go:625
cmd/compile/internal/ssa.checkFunc(0xc000637340)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/check.go:161 +0x22eb
cmd/compile/internal/ssa.Compile(0xc000637340)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/compile.go:135 +0xa90
cmd/compile/internal/gc.buildssa(0xc000490dc0, 0x0, 0x0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/ssa.go:460 +0xd25
cmd/compile/internal/gc.compileSSA(0xc000490dc0, 0x0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:296 +0x5d
cmd/compile/internal/gc.compile(0xc000490dc0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:275 +0x349
cmd/compile/internal/gc.funccompile(0xc000490dc0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:220 +0xc5
cmd/compile/internal/gc.Main(0x1868960)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/main.go:747 +0x344f
main.main()
	/Users/josh/go/tip/src/cmd/compile/main.go:52 +0xb1

# runtime
runtime/runtime1.go:208:62: internal compiler error: 'check': value v243 has an AuxInt that encodes a NaN

goroutine 1 [running]:
runtime/debug.Stack(0x1945c20, 0xc0000ac008, 0x0)
	/Users/josh/go/tip/src/runtime/debug/stack.go:24 +0x9f
cmd/compile/internal/gc.Fatalf(0xc00534c480, 0x2f, 0xc000f0c440, 0x2, 0x2)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/subr.go:193 +0x1b0
cmd/compile/internal/gc.(*ssafn).Fatalf(0xc005632e40, 0xd03e100000055, 0x185b258, 0x29, 0xc005289ba0, 0x1, 0x1)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/ssa.go:6839 +0x1a5
cmd/compile/internal/ssa.(*Func).Fatalf(...)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/func.go:625
cmd/compile/internal/ssa.checkFunc(0xc0051abce0)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/check.go:161 +0x22eb
cmd/compile/internal/ssa.Compile(0xc0051abce0)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/compile.go:135 +0xa90
cmd/compile/internal/gc.buildssa(0xc001a709a0, 0x0, 0x0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/ssa.go:460 +0xd25
cmd/compile/internal/gc.compileSSA(0xc001a709a0, 0x0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:296 +0x5d
cmd/compile/internal/gc.compile(0xc001a709a0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:275 +0x349
cmd/compile/internal/gc.funccompile(0xc001a709a0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:220 +0xc5
cmd/compile/internal/gc.Main(0x1868960)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/main.go:747 +0x344f
main.main()
	/Users/josh/go/tip/src/cmd/compile/main.go:52 +0xb1

linux/ppc64le
# math
math/acosh.go:51:13: internal compiler error: 'acosh': value v38 has an AuxInt that encodes a NaN

goroutine 1 [running]:
runtime/debug.Stack(0x1945c20, 0xc0000ac008, 0x0)
	/Users/josh/go/tip/src/runtime/debug/stack.go:24 +0x9f
cmd/compile/internal/gc.Fatalf(0xc0000aaf90, 0x2f, 0xc000762a40, 0x2, 0x2)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/subr.go:193 +0x1b0
cmd/compile/internal/gc.(*ssafn).Fatalf(0xc0003d0f00, 0x330d000000003, 0x185b258, 0x29, 0xc000411c70, 0x1, 0x1)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/ssa.go:6839 +0x1a5
cmd/compile/internal/ssa.(*Func).Fatalf(...)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/func.go:625
cmd/compile/internal/ssa.checkFunc(0xc000109080)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/check.go:161 +0x22eb
cmd/compile/internal/ssa.Compile(0xc000109080)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/compile.go:135 +0xa90
cmd/compile/internal/gc.buildssa(0xc0000626e0, 0x0, 0x0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/ssa.go:460 +0xd25
cmd/compile/internal/gc.compileSSA(0xc0000626e0, 0x0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:296 +0x5d
cmd/compile/internal/gc.compile(0xc0000626e0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:275 +0x349
cmd/compile/internal/gc.funccompile(0xc0000626e0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:220 +0xc5
cmd/compile/internal/gc.Main(0x1868960)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/main.go:747 +0x344f
main.main()
	/Users/josh/go/tip/src/cmd/compile/main.go:52 +0xb1

# runtime
runtime/runtime1.go:208:62: internal compiler error: 'check': value v243 has an AuxInt that encodes a NaN

goroutine 1 [running]:
runtime/debug.Stack(0x1945c20, 0xc0000ac008, 0x0)
	/Users/josh/go/tip/src/runtime/debug/stack.go:24 +0x9f
cmd/compile/internal/gc.Fatalf(0xc0041b6210, 0x2f, 0xc0000d3700, 0x2, 0x2)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/subr.go:193 +0x1b0
cmd/compile/internal/gc.(*ssafn).Fatalf(0xc0056233b0, 0xd03e100000055, 0x185b258, 0x29, 0xc002e0a420, 0x1, 0x1)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/ssa.go:6839 +0x1a5
cmd/compile/internal/ssa.(*Func).Fatalf(...)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/func.go:625
cmd/compile/internal/ssa.checkFunc(0xc0058b5760)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/check.go:161 +0x22eb
cmd/compile/internal/ssa.Compile(0xc0058b5760)
	/Users/josh/go/tip/src/cmd/compile/internal/ssa/compile.go:135 +0xa90
cmd/compile/internal/gc.buildssa(0xc0007ec9a0, 0x0, 0x0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/ssa.go:460 +0xd25
cmd/compile/internal/gc.compileSSA(0xc0007ec9a0, 0x0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:296 +0x5d
cmd/compile/internal/gc.compile(0xc0007ec9a0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:275 +0x349
cmd/compile/internal/gc.funccompile(0xc0007ec9a0)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/pgen.go:220 +0xc5
cmd/compile/internal/gc.Main(0x1868960)
	/Users/josh/go/tip/src/cmd/compile/internal/gc/main.go:747 +0x344f
main.main()
	/Users/josh/go/tip/src/cmd/compile/main.go:52 +0xb1

linux/s390x

Related: #36755, #36756, #36723

cc @randall77

@gopherbot
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@gopherbot gopherbot commented May 7, 2020

Change https://golang.org/cl/232859 mentions this issue: cmd/compile: don't store NaN in ppc64 floating point constant ops

@gopherbot gopherbot closed this in 78aa4af May 7, 2020
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