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cmd/5g: avoid clash between R13 and F3 registers.
Fixes #6247. R=golang-dev, lucio.dere, bradfitz CC=golang-dev https://golang.org/cl/13216043
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@ -51,7 +51,7 @@ struct Prog
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#define REGALLOC_R0 0
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#define REGALLOC_RMAX REGEXT
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#define REGALLOC_F0 (REGALLOC_RMAX+1)
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#define REGALLOC_F0 NREG
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#define REGALLOC_FMAX (REGALLOC_F0 + FREGEXT)
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EXTERN int32 dynloc;
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17
test/fixedbugs/issue6247.go
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17
test/fixedbugs/issue6247.go
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@ -0,0 +1,17 @@
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// compile
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// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Issue 6247: 5g used to be confused by the numbering
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// of floating-point registers.
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package main
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var p map[string]interface{}
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var v interface{}
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func F() {
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p["hello"] = v.(complex128) * v.(complex128)
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}
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