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[dev.ssa] cmd/compiler/internal/ssa: Add auxint field

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Add an additional int64 auxiliary field to Value.

There are two main reasons for doing this:
1) Ints in interfaces require allocation, and we store ints in Aux a lot.
2) I'd like to have both *gc.Sym and int offsets included in lots
   of operations (e.g. MOVQloadidx8).  It will be more efficient to
   store them as separate fields instead of a pointer to a sym/int pair.

It also simplifies a bunch of code.

This is just the refactoring.  I'll start using this some more in a
subsequent changelist.

Change-Id: I1ca797ff572553986cf90cab3ac0a0c1d01ad241
Reviewed-on: https://go-review.googlesource.com/10929
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
This commit is contained in:
Keith Randall 2015-06-11 21:29:25 -07:00
parent 0ad9c8c720
commit 8f22b5292f
20 changed files with 756 additions and 1003 deletions
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16
src/cmd/compile/internal/ssa/shift_test.go
View file

@ -28,14 +28,14 @@ func makeConstShiftFunc(c *Config, amount int64, op Op, typ Type) fun {
ptyp := &TypeImpl{Size_: 8, Ptr: true, Name: "ptr"}
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, ".mem"),
Valu("FP", OpFP, TypeUInt64, nil),
Valu("argptr", OpOffPtr, ptyp, int64(8), "FP"),
Valu("resptr", OpOffPtr, ptyp, int64(16), "FP"),
Valu("load", OpLoad, typ, nil, "argptr", "mem"),
Valu("c", OpConst, TypeUInt64, amount),
Valu("shift", op, typ, nil, "load", "c"),
Valu("store", OpStore, TypeMem, nil, "resptr", "shift", "mem"),
Valu("mem", OpArg, TypeMem, 0, ".mem"),
Valu("FP", OpFP, TypeUInt64, 0, nil),
Valu("argptr", OpOffPtr, ptyp, 8, nil, "FP"),
Valu("resptr", OpOffPtr, ptyp, 16, nil, "FP"),
Valu("load", OpLoad, typ, 0, nil, "argptr", "mem"),
Valu("c", OpConst, TypeUInt64, amount, nil),
Valu("shift", op, typ, 0, nil, "load", "c"),
Valu("store", OpStore, TypeMem, 0, nil, "resptr", "shift", "mem"),
Exit("store")))
Compile(fun.f)
return fun