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gllgo: "unimplemented conversion" error #176
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axw
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Jun 2, 2014
FreeVars have the right (pointer) type to begin with, so we should not explicitly create a pointer type. Fixes go-llvm#176
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I am on commit a143e91 in libgo branch.
Build the following program with gllgo:
https://gist.github.com/dvyukov/95bdd2b43e17c69fe0f4
$ go build -compiler=gccgo /tmp/llgo1.go
panic: unimplemented conversion: **bool (PointerType(IntegerType(8 bits))) -> *bool
goroutine 16 [running]:
runtime.panic(0x1f81860, 0xc208169110)
src/pkg/runtime/panic.c:279 +0xf5 fp=0xc2081c1fd0
github.com/go-llvm/llgo.(_frame).convert(0xc208216600, 0xc208223ac0, 0x7fb712a5b6b8, 0xc2080c83f0, 0xac107c)
github.com/go-llvm/llgo/value.go:622 +0x164b fp=0xc2081c22e8
github.com/go-llvm/llgo.(_frame).chanSend(0xc208216600, 0xc208223bc0, 0xc208223ac0)
github.com/go-llvm/llgo/channels.go:23 +0xa0 fp=0xc2081c2370
github.com/go-llvm/llgo.(_frame).instruction(0xc208216600, 0x7fb712a60a40, 0xc20818de30)
github.com/go-llvm/llgo/ssa.go:966 +0x1ebf fp=0xc2081c30d0
github.com/go-llvm/llgo.(_frame).translateBlock(0xc208216600, 0xc20800f1e0, 0x7fb70003c770)
github.com/go-llvm/llgo/ssa.go:542 +0x14b fp=0xc2081c3120
github.com/go-llvm/llgo.(_unit).defineFunction(0xc2080b08c0, 0xc208042f00)
github.com/go-llvm/llgo/ssa.go:342 +0x1cf9 fp=0xc2081c3608
github.com/go-llvm/llgo.(_unit).defineFunctionsInOrder(0xc2080b08c0, 0xc20815ecc0)
github.com/go-llvm/llgo/ssa.go:77 +0x1f5 fp=0xc2081c3710
github.com/go-llvm/llgo.(_unit).translatePackage(0xc2080b08c0, 0xc20805c1c0)
github.com/go-llvm/llgo/ssa.go:115 +0x314 fp=0xc2081c3850
github.com/go-llvm/llgo.(_compiler).compile(0xc20800e2c0, 0xc208000540, 0x1, 0x1, 0xc208000938, 0x4, 0x0, 0x0, 0x0)
github.com/go-llvm/llgo/compiler.go:221 +0xa5d fp=0xc2081c3a38
github.com/go-llvm/llgo.(*Compiler).Compile(0xc20805c000, 0xc208000540, 0x1, 0x1, 0x0, 0x0, 0x2f6aa0c, 0xac5155, 0x2fad158)
github.com/go-llvm/llgo/compiler.go:102 +0x12e fp=0xc2081c3aa0
main.performAction(0xc20802a0d0, 0x1, 0xc208000540, 0x1, 0x1, 0x7fffaab9313e, 0x39, 0x0, 0x0)
github.com/go-llvm/llgo/cmd/gllgo/gllgo.go:326 +0xf6 fp=0xc2081c3cd8
main.performActions(0xc20802a0d0, 0x0, 0x0)
github.com/go-llvm/llgo/cmd/gllgo/gllgo.go:481 +0x2b0 fp=0xc2081c3e28
main.main()
github.com/go-llvm/llgo/cmd/gllgo/gllgo.go:505 +0xf3 fp=0xc2081c3f50
runtime.main()
src/pkg/runtime/proc.c:247 +0x11a fp=0xc2081c3fa8
It does not print the line number, so I can't minimize the program.
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