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[dev.ssa] cmd/compile: PPC64, add cmp->bool, some shifts, hmul

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Includes hmul (all widths)
compare for boolean result and simplifications
shift operations plus changes/additions for implementation
(ORN, ADDME, ADDC)

Also fixed a backwards-operand CMP.

Change-Id: Id723c4e25125c38e0d9ab9ec9448176b75f4cdb4
Reviewed-on: https://go-review.googlesource.com/25410
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
David Chase 2016-08-02 13:17:09 -07:00
parent d2286ea284
commit dd1d9b36c6
8 changed files with 2041 additions and 210 deletions
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8
src/cmd/compile/internal/ssa/regalloc.go
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@ -336,11 +336,11 @@ func (s *regAllocState) assignReg(r register, v *Value, c *Value) {
// allocReg chooses a register from the set of registers in mask.
// If there is no unused register, a Value will be kicked out of
// a register to make room.
func (s *regAllocState) allocReg(mask regMask) register {
func (s *regAllocState) allocReg(mask regMask, v *Value) register {
mask &= s.allocatable
mask &^= s.nospill
if mask == 0 {
s.f.Fatalf("no register available")
s.f.Fatalf("no register available for %s", v)
}
// Pick an unused register if one is available.
@ -401,7 +401,7 @@ func (s *regAllocState) allocValToReg(v *Value, mask regMask, nospill bool, line
}
// Allocate a register.
r := s.allocReg(mask)
r := s.allocReg(mask, v)
// Allocate v to the new register.
var c *Value
@ -1220,7 +1220,7 @@ func (s *regAllocState) regalloc(f *Func) {
if mask&^desired.avoid != 0 {
mask &^= desired.avoid
}
r := s.allocReg(mask)
r := s.allocReg(mask, v)
outRegs[out.idx] = r
used |= regMask(1) << r
}