cmd/compile/internal/gc: disable logProgs debug flag
Spotted while splunking in the compiler with GOGC=off.
name old time/op new time/op delta
Template 407ms ± 5% 402ms ± 6% ~ (p=0.301 n=20+20)
GoTypes 1.33s ± 2% 1.29s ± 1% -3.47% (p=0.000 n=20+20)
Compiler 6.21s ± 1% 5.91s ± 2% -4.83% (p=0.000 n=20+20)
name old alloc/op new alloc/op delta
Template 66.8MB ± 0% 63.9MB ± 0% -4.46% (p=0.000 n=19+20)
GoTypes 232MB ± 0% 220MB ± 0% -5.16% (p=0.000 n=19+17)
Compiler 1.02GB ± 0% 0.97GB ± 0% -5.81% (p=0.000 n=20+20)
name old allocs/op new allocs/op delta
Template 789k ± 0% 708k ± 0% -10.28% (p=0.000 n=19+20)
GoTypes 2.49M ± 0% 2.20M ± 0% -11.57% (p=0.000 n=20+20)
Compiler 10.8M ± 0% 9.4M ± 0% -12.82% (p=0.000 n=20+20)
Change-Id: I76615cab912dde10595ca6ab9979ff6c5f1aec49
Reviewed-on: https://go-review.googlesource.com/20782
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index 56f2474..6bf5899 100644
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -3654,7 +3654,7 @@
var valueProgs map[*obj.Prog]*ssa.Value
var blockProgs map[*obj.Prog]*ssa.Block
- const logProgs = true
+ var logProgs = e.log
if logProgs {
valueProgs = make(map[*obj.Prog]*ssa.Value, f.NumValues())
blockProgs = make(map[*obj.Prog]*ssa.Block, f.NumBlocks())
