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[dev.ssa] cmd/compile/internal/ssa: autogenerate opcodes

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Revamp autogeneration.  Get rid of gogenerate commands, they are more
trouble than they are worth.  (If the code won't compile, gogenerate
doesn't work.)

Generate opcode enums & tables.  This means we only have to specify
opcodes in one place instead of two.

Add arch prefixes to opcodes so they will be globally unique.

Change-Id: I175d0a89b701b2377bbe699f3756731b7c9f5a9f
Reviewed-on: https://go-review.googlesource.com/10812
Reviewed-by: Alan Donovan <adonovan@google.com>
This commit is contained in:
Keith Randall 2015-06-06 16:03:33 -07:00
parent 6241a41e33
commit 0dca7351e9
23 changed files with 2391 additions and 749 deletions
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9
src/cmd/compile/internal/ssa/stackalloc.go
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@ -91,12 +91,12 @@ func stackalloc(f *Func) {
}
// TODO: do this with arch-specific rewrite rules somehow?
switch v.Op {
case OpADDQ:
case OpAMD64ADDQ:
// (ADDQ (FP) x) -> (LEAQ [n] (SP) x)
v.Op = OpLEAQ
v.Op = OpAMD64LEAQ
v.Aux = n
case OpLEAQ, OpMOVQload, OpMOVQstore, OpMOVBload, OpMOVQloadidx8:
if v.Op == OpMOVQloadidx8 && i == 1 {
case OpAMD64LEAQ, OpAMD64MOVQload, OpAMD64MOVQstore, OpAMD64MOVBload, OpAMD64MOVQloadidx8:
if v.Op == OpAMD64MOVQloadidx8 && i == 1 {
// Note: we could do it, but it is probably an error
log.Panicf("can't do FP->SP adjust on index slot of load %s", v.Op)
}
@ -104,6 +104,7 @@ func stackalloc(f *Func) {
v.Aux = addOffset(v.Aux.(int64), n)
default:
log.Panicf("can't do FP->SP adjust on %s", v.Op)
// TODO: OpCopy -> ADDQ
}
}
}