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cmd/compile: re-enable nilcheck removal for newobject

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Also add compiler debug ouput and add a test.

Fixes #15390.

Change-Id: Iceba1414c29bcc213b87837387bf8ded1f3157f1
Reviewed-on: https://go-review.googlesource.com/30011
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Cherry Zhang 2016-09-28 10:20:24 -04:00
parent 456a01ac47
commit 4d07d3e29c
5 changed files with 95 additions and 10 deletions
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9
src/cmd/compile/internal/ssa/config.go
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@ -17,6 +17,7 @@ type Config struct {
arch string // "amd64", etc.
IntSize int64 // 4 or 8
PtrSize int64 // 4 or 8
RegSize int64 // 4 or 8
lowerBlock func(*Block, *Config) bool // lowering function
lowerValue func(*Value, *Config) bool // lowering function
registers []Register // machine registers
@ -132,6 +133,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
case "amd64":
c.IntSize = 8
c.PtrSize = 8
c.RegSize = 8
c.lowerBlock = rewriteBlockAMD64
c.lowerValue = rewriteValueAMD64
c.registers = registersAMD64[:]
@ -142,6 +144,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
case "amd64p32":
c.IntSize = 4
c.PtrSize = 4
c.RegSize = 8
c.lowerBlock = rewriteBlockAMD64
c.lowerValue = rewriteValueAMD64
c.registers = registersAMD64[:]
@ -153,6 +156,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
case "386":
c.IntSize = 4
c.PtrSize = 4
c.RegSize = 4
c.lowerBlock = rewriteBlock386
c.lowerValue = rewriteValue386
c.registers = registers386[:]
@ -163,6 +167,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
case "arm":
c.IntSize = 4
c.PtrSize = 4
c.RegSize = 4
c.lowerBlock = rewriteBlockARM
c.lowerValue = rewriteValueARM
c.registers = registersARM[:]
@ -173,6 +178,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
case "arm64":
c.IntSize = 8
c.PtrSize = 8
c.RegSize = 8
c.lowerBlock = rewriteBlockARM64
c.lowerValue = rewriteValueARM64
c.registers = registersARM64[:]
@ -187,6 +193,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
case "ppc64le":
c.IntSize = 8
c.PtrSize = 8
c.RegSize = 8
c.lowerBlock = rewriteBlockPPC64
c.lowerValue = rewriteValuePPC64
c.registers = registersPPC64[:]
@ -199,6 +206,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
case "mips64", "mips64le":
c.IntSize = 8
c.PtrSize = 8
c.RegSize = 8
c.lowerBlock = rewriteBlockMIPS64
c.lowerValue = rewriteValueMIPS64
c.registers = registersMIPS64[:]
@ -210,6 +218,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
case "s390x":
c.IntSize = 8
c.PtrSize = 8
c.RegSize = 8
c.lowerBlock = rewriteBlockS390X
c.lowerValue = rewriteValueS390X
c.registers = registersS390X[:]