From: Todd Neal <todd@tneal.org>
Date: Tue, 1 Sep 2015 01:42:04 +0000 (-0500)
Subject: [dev.ssa] cmd/compile: add more specific regalloc logging
X-Git-Tag: go1.7beta1~1623^2^2~223
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=a0022d9b8ced73368e76b20b3fcbf93ead30952b;p=gostls13.git

[dev.ssa] cmd/compile: add more specific regalloc logging

Change-Id: Ib0ea4b9c245f3d551e0f703826caa6b444b56a2d
Reviewed-on: https://go-review.googlesource.com/14136
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
---

diff --git a/src/cmd/compile/internal/ssa/regalloc.go b/src/cmd/compile/internal/ssa/regalloc.go
index 00b7ad846b..3122c7a130 100644
--- a/src/cmd/compile/internal/ssa/regalloc.go
+++ b/src/cmd/compile/internal/ssa/regalloc.go
@@ -912,6 +912,8 @@ func (s *regAllocState) regalloc(f *Func) {
 					spill2.Op = OpInvalid
 					spill2.Type = TypeInvalid
 					spill2.resetArgs()
+				} else if logSpills {
+					fmt.Println("regalloc: spilled phi")
 				}
 				s.values[v.ID].spill2 = nil
 				s.values[v.ID].spill2used = false
@@ -926,6 +928,9 @@ func (s *regAllocState) regalloc(f *Func) {
 	for i := range s.values {
 		vi := s.values[i]
 		if vi.spillUsed {
+			if logSpills {
+				fmt.Println("regalloc: spilled value")
+			}
 			continue
 		}
 		spill := vi.spill