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arm: work around reg allocator bug in 5g, in two parts.

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1) hack regalloc to leave R9 (m) and R10 (g) alone.
the real fix is tricker, but this gets us running
2) fix up the few places in the package sources that
the shortage of registers affects, by simplifying
some expressions.

all of this should be reverted when the right fix is in.

Fixes #1084.

R=rsc
CC=golang-dev
https://golang.org/cl/2132046
This commit is contained in:
Rob Pike 2010-09-10 20:55:29 -07:00
parent b9988edbb6
commit 0aa2317096
7 changed files with 53 additions and 17 deletions
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10
src/pkg/xml/xml.go
View file

@ -371,8 +371,14 @@ func (p *Parser) popElement(t *EndElement) bool {
p.err = p.syntaxError("element <" + s.name.Local + "> closed by </" + name.Local + ">")
return false
case s.name.Space != name.Space:
p.err = p.syntaxError("element <" + s.name.Local + "> in space " + s.name.Space +
"closed by </" + name.Local + "> in space " + name.Space)
// BUG: work around bug in 5g by simplifying expression.
// p.err = p.syntaxError("element <" + s.name.Local + "> in space " + s.name.Space +
// "closed by </" + name.Local + "> in space " + name.Space)
str := "element <" + s.name.Local
str += "> in space " + s.name.Space
str += "closed by </" + name.Local
str += "> in space " + name.Space
p.err = p.syntaxError(str)
return false
}