cmd/compile: remove amd64 code from package gc and the core gen tool
Parts of the SSA compiler in package gc contain amd64-specific code,
most notably Prog generation. Move this code into package amd64, so that
other architectures can be added more easily.
In package gc, this change is just moving code. There are no functional
changes or even any larger structural changes beyond changing function
names (mostly for export).
In the cmd/compile/internal/ssa/gen tool, more information is included
in arch to remove the AMD64-specific behavior in the main portion of the
tool. The generated opGen.go is identical.
Change-Id: I8eb37c6e6df6de1b65fa7dab6f3bc32c29daf643
Reviewed-on: https://go-review.googlesource.com/20609
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/src/cmd/compile/internal/gc/go.go b/src/cmd/compile/internal/gc/go.go
index 90be6a5..5317648 100644
--- a/src/cmd/compile/internal/gc/go.go
+++ b/src/cmd/compile/internal/gc/go.go
@@ -6,6 +6,7 @@
import (
"bytes"
+ "cmd/compile/internal/ssa"
"cmd/internal/obj"
)
@@ -561,6 +562,19 @@
Doregbits func(int) uint64
Regnames func(*int) []string
Use387 bool // should 8g use 387 FP instructions instead of sse2.
+
+ // SSARegToReg maps ssa register numbers to obj register numbers.
+ SSARegToReg []int16
+
+ // SSAMarkMoves marks any MOVXconst ops that need to avoid clobbering flags.
+ SSAMarkMoves func(*SSAGenState, *ssa.Block)
+
+ // SSAGenValue emits Prog(s) for the Value.
+ SSAGenValue func(*SSAGenState, *ssa.Value)
+
+ // SSAGenBlock emits end-of-block Progs. SSAGenValue should be called
+ // for all values in the block before SSAGenBlock.
+ SSAGenBlock func(s *SSAGenState, b, next *ssa.Block)
}
var pcloc int32
