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[dev.ssa] cmd/compile: default compile+test with SSA

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Some tests disabled, some bifurcated into _ssa and not,
with appropriate logging added to compiler.

"tests/live.go" in particular needs attention.

SSA-specific testing removed, since it's all SSA now.

Added "-run_skips" option to tests/run.go to simplify
checking whether a test still fails (or how it fails)
on a skipped platform.

The compiler now compiles with SSA by default.
If you don't want SSA, specify GOSSAHASH=n (or N) as
an environment variable.  Function names ending in "_ssa"
are always SSA-compiled.

GOSSAFUNC=fname retains its "SSA for fname, log to ssa.html"
GOSSAPKG=pkg only has an effect when GOSSAHASH=n
GOSSAHASH=10101 etc retains its name-hash-matching behavior
for purposes of debugging.

See #13068

Change-Id: I8217bfeb34173533eaeb391b5f6935483c7d6b43
Reviewed-on: https://go-review.googlesource.com/16299
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: David Chase <drchase@google.com>
This commit is contained in:
David Chase 2015-10-26 17:34:06 -04:00
parent cdc36252fe
commit 729abfa35c
13 changed files with 500 additions and 103 deletions
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14
src/cmd/compile/internal/ssa/config.go
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@ -49,6 +49,12 @@ type Logger interface {
// Unimplemented reports that the function cannot be compiled.
// It will be removed once SSA work is complete.
Unimplementedf(msg string, args ...interface{})
// Warnl writes compiler messages in the form expected by "errorcheck" tests
Warnl(line int, fmt_ string, args ...interface{})
// Fowards the Debug_checknil flag from gc
Debug_checknil() bool
}
type Frontend interface {
@ -100,9 +106,11 @@ func (c *Config) NewFunc() *Func {
return &Func{Config: c, NamedValues: map[GCNode][]*Value{}}
}
func (c *Config) Logf(msg string, args ...interface{}) { c.fe.Logf(msg, args...) }
func (c *Config) Fatalf(msg string, args ...interface{}) { c.fe.Fatalf(msg, args...) }
func (c *Config) Unimplementedf(msg string, args ...interface{}) { c.fe.Unimplementedf(msg, args...) }
func (c *Config) Logf(msg string, args ...interface{}) { c.fe.Logf(msg, args...) }
func (c *Config) Fatalf(msg string, args ...interface{}) { c.fe.Fatalf(msg, args...) }
func (c *Config) Unimplementedf(msg string, args ...interface{}) { c.fe.Unimplementedf(msg, args...) }
func (c *Config) Warnl(line int, msg string, args ...interface{}) { c.fe.Warnl(line, msg, args...) }
func (c *Config) Debug_checknil() bool { return c.fe.Debug_checknil() }
// TODO(khr): do we really need a separate Config, or can we just
// store all its fields inside a Func?