From: Guoqi Chen <chenguoqi@loongson.cn>
Date: Tue, 15 Aug 2023 11:54:51 +0000 (+0800)
Subject: cmd/compile/internal: add register info for loong64 regABI
X-Git-Tag: go1.22rc1~218
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=ebca52eeb77f24f44c9b556b99508a9a6fada743;p=gostls13.git

cmd/compile/internal: add register info for loong64 regABI

Update #40724

Co-authored-by: Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Change-Id: Ifd7d94147b01e4fc83978b53dca2bcc0ad1ac4e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/521779
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
---

diff --git a/src/cmd/compile/internal/loong64/ssa.go b/src/cmd/compile/internal/loong64/ssa.go
index ad465ba3bb..06490a7ba5 100644
--- a/src/cmd/compile/internal/loong64/ssa.go
+++ b/src/cmd/compile/internal/loong64/ssa.go
@@ -144,6 +144,8 @@ func ssaGenValue(s *ssagen.State, v *ssa.Value) {
 		p.From.Type = obj.TYPE_REG
 		p.From.Reg = r
 		ssagen.AddrAuto(&p.To, v)
+	case ssa.OpArgIntReg, ssa.OpArgFloatReg:
+		ssagen.CheckArgReg(v)
 	case ssa.OpLOONG64ADDV,
 		ssa.OpLOONG64SUBV,
 		ssa.OpLOONG64AND,
diff --git a/src/cmd/compile/internal/ssa/_gen/LOONG64Ops.go b/src/cmd/compile/internal/ssa/_gen/LOONG64Ops.go
index 10ffcb8b97..845d5491e2 100644
--- a/src/cmd/compile/internal/ssa/_gen/LOONG64Ops.go
+++ b/src/cmd/compile/internal/ssa/_gen/LOONG64Ops.go
@@ -476,8 +476,8 @@ func init() {
 		blocks:   blocks,
 		regnames: regNamesLOONG64,
 		// TODO: support register ABI on loong64
-		ParamIntRegNames:   "R4 R5 R6 R7 R8 R9 R10 R11",
-		ParamFloatRegNames: "F0 F1 F2 F3 F4 F5 F6 F7",
+		ParamIntRegNames:   "R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19",
+		ParamFloatRegNames: "F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15",
 		gpregmask:          gp,
 		fpregmask:          fp,
 		framepointerreg:    -1, // not used
diff --git a/src/cmd/compile/internal/ssa/config.go b/src/cmd/compile/internal/ssa/config.go
index da4294d871..c36ac4cd5d 100644
--- a/src/cmd/compile/internal/ssa/config.go
+++ b/src/cmd/compile/internal/ssa/config.go
@@ -283,6 +283,8 @@ func NewConfig(arch string, types Types, ctxt *obj.Link, optimize, softfloat boo
 		c.registers = registersLOONG64[:]
 		c.gpRegMask = gpRegMaskLOONG64
 		c.fpRegMask = fpRegMaskLOONG64
+		// c.intParamRegs = paramIntRegLOONG64
+		// c.floatParamRegs = paramFloatRegLOONG64
 		c.FPReg = framepointerRegLOONG64
 		c.LinkReg = linkRegLOONG64
 		c.hasGReg = true
diff --git a/src/cmd/compile/internal/ssa/opGen.go b/src/cmd/compile/internal/ssa/opGen.go
index e39190aaf7..7ad7209366 100644
--- a/src/cmd/compile/internal/ssa/opGen.go
+++ b/src/cmd/compile/internal/ssa/opGen.go
@@ -40751,8 +40751,8 @@ var registersLOONG64 = [...]Register{
 	{61, loong64.REG_F31, -1, "F31"},
 	{62, 0, -1, "SB"},
 }
-var paramIntRegLOONG64 = []int8{3, 4, 5, 6, 7, 8, 9, 10}
-var paramFloatRegLOONG64 = []int8{30, 31, 32, 33, 34, 35, 36, 37}
+var paramIntRegLOONG64 = []int8{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18}
+var paramFloatRegLOONG64 = []int8{30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45}
 var gpRegMaskLOONG64 = regMask(1071644664)
 var fpRegMaskLOONG64 = regMask(4611686017353646080)
 var specialRegMaskLOONG64 = regMask(0)