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Alan Donovan 7d1d69032b go.tools/go/ssa: don't attempt fusion on single-pred blocks with φ-nodes 
During block optimization, degenerate conditional logic such
as "false && x" may result in single-predecessor blocks
containing φ-nodes.  (Ideally such φ-nodes would be replaced
by their sole operand, but that requires Referrers information
which isn't computed until later.)  It is obviously not safe
to fuse such blocks, so now we don't.

Fixes golang/go#7840

LGTM=gri
R=gri
CC=golang-codereviews, pcc
https://golang.org/cl/90620043
 		2014-04-24 09:08:21 -04:00
astutil go.tools: rename packages. 2014-01-16 09:33:58 -05:00
blog go.tools/blog: strip prefix when serving static content 2013-11-08 13:28:32 +11:00
cmd cmd/godoc: wait up to 500ms for results of -analysis=type. 2014-04-21 17:56:06 -04:00
cover go.tools/cover: split parsing code out from cmd/cover 2013-12-03 20:55:21 -08:00
dashboard dashboard/builder: pass GO386 to child builder, like GOARM 2014-04-06 17:15:49 -07:00
go go.tools/go/ssa: don't attempt fusion on single-pred blocks with φ-nodes 2014-04-24 09:08:21 -04:00
godoc go.tools/cmd/godoc/static: fix text template for variable examples. 2014-04-22 18:46:26 -04:00
imports imports: use chan struct{} for disk semaphore 2014-04-09 17:40:05 -07:00
oracle go.tools/oracle: don't discard /usr/bin/diff's stderr 2014-04-15 15:39:38 -04:00
playground go.tools/playground: provide script-safe option for playground 2014-03-17 16:57:36 +11:00
present go.tools/present: Remove formatting comments (HL, OMIT) from raw code. 2014-02-25 17:53:00 -08:00
refactor go.tools/refactor/eg: avoid nonstandard 'diff -N' option. 2014-04-21 18:35:16 -04:00
.hgignore go.tools/.hgignore: don't ignore test-generated files, clean them up. 2014-04-10 13:17:20 -04:00
AUTHORS go.empty: prototype for new subrepository 2012-01-25 14:45:13 -05:00
CONTRIBUTORS go.empty: prototype for new subrepository 2012-01-25 14:45:13 -05:00
LICENSE LICENSE: add 2012-03-17 15:20:58 +11:00
PATENTS go.empty: add PATENTS file to the subrepo. 2012-04-16 11:24:04 +10:00
README go.tools/README: minor correction. 2013-10-29 13:20:58 -04:00
codereview.cfg codereview: switch defaultcc to golang-codereviews 2013-12-20 10:54:33 -05:00

README 

This subrepository holds the source for various packages and tools that support
the Go programming language.

Some of the tools, godoc and vet for example, are included in binary Go distributions.
Others, including the Go oracle and the test coverage tool, can be fetched with "go get".

Packages include a type-checker for Go and an implementation of the
Static Single Assignment form (SSA) representation for Go programs.

To submit changes to this repository, see http://golang.org/doc/contribute.html.