From: Alex Lorenz <arphaman@gmail.com>
Date: Fri, 14 Aug 2015 19:07:07 +0000 (+0000)
Subject: MIR Serialization: Serialize the 'internal' register operand flag.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=6ad9b2163c9d706deb9a7c69b7a02a4ad97d69c7;p=oota-llvm.git

MIR Serialization: Serialize the 'internal' register operand flag.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245085 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/MIRParser/MILexer.cpp b/lib/CodeGen/MIRParser/MILexer.cpp
index 5ae1b10afd6..e15a4d1e753 100644
--- a/lib/CodeGen/MIRParser/MILexer.cpp
+++ b/lib/CodeGen/MIRParser/MILexer.cpp
@@ -191,6 +191,7 @@ static MIToken::TokenKind getIdentifierKind(StringRef Identifier) {
       .Case("dead", MIToken::kw_dead)
       .Case("killed", MIToken::kw_killed)
       .Case("undef", MIToken::kw_undef)
+      .Case("internal", MIToken::kw_internal)
       .Case("early-clobber", MIToken::kw_early_clobber)
       .Case("debug-use", MIToken::kw_debug_use)
       .Case("frame-setup", MIToken::kw_frame_setup)
diff --git a/lib/CodeGen/MIRParser/MILexer.h b/lib/CodeGen/MIRParser/MILexer.h
index 2f55ae4f0db..e7abbb2dd89 100644
--- a/lib/CodeGen/MIRParser/MILexer.h
+++ b/lib/CodeGen/MIRParser/MILexer.h
@@ -52,6 +52,7 @@ struct MIToken {
     kw_dead,
     kw_killed,
     kw_undef,
+    kw_internal,
     kw_early_clobber,
     kw_debug_use,
     kw_frame_setup,
@@ -138,7 +139,8 @@ public:
   bool isRegisterFlag() const {
     return Kind == kw_implicit || Kind == kw_implicit_define ||
            Kind == kw_dead || Kind == kw_killed || Kind == kw_undef ||
-           Kind == kw_early_clobber || Kind == kw_debug_use;
+           Kind == kw_internal || Kind == kw_early_clobber ||
+           Kind == kw_debug_use;
   }
 
   bool isMemoryOperandFlag() const {
diff --git a/lib/CodeGen/MIRParser/MIParser.cpp b/lib/CodeGen/MIRParser/MIParser.cpp
index 36b34395d4d..7984116efcb 100644
--- a/lib/CodeGen/MIRParser/MIParser.cpp
+++ b/lib/CodeGen/MIRParser/MIParser.cpp
@@ -777,13 +777,15 @@ bool MIParser::parseRegisterFlag(unsigned &Flags) {
   case MIToken::kw_undef:
     Flags |= RegState::Undef;
     break;
+  case MIToken::kw_internal:
+    Flags |= RegState::InternalRead;
+    break;
   case MIToken::kw_early_clobber:
     Flags |= RegState::EarlyClobber;
     break;
   case MIToken::kw_debug_use:
     Flags |= RegState::Debug;
     break;
-  // TODO: parse the other register flags.
   default:
     llvm_unreachable("The current token should be a register flag");
   }
@@ -828,7 +830,8 @@ bool MIParser::parseRegisterOperand(MachineOperand &Dest, bool IsDef) {
   Dest = MachineOperand::CreateReg(
       Reg, Flags & RegState::Define, Flags & RegState::Implicit,
       Flags & RegState::Kill, Flags & RegState::Dead, Flags & RegState::Undef,
-      Flags & RegState::EarlyClobber, SubReg, Flags & RegState::Debug);
+      Flags & RegState::EarlyClobber, SubReg, Flags & RegState::Debug,
+      Flags & RegState::InternalRead);
   return false;
 }
 
@@ -1235,6 +1238,7 @@ bool MIParser::parseMachineOperand(MachineOperand &Dest) {
   case MIToken::kw_dead:
   case MIToken::kw_killed:
   case MIToken::kw_undef:
+  case MIToken::kw_internal:
   case MIToken::kw_early_clobber:
   case MIToken::kw_debug_use:
   case MIToken::underscore:
diff --git a/lib/CodeGen/MIRPrinter.cpp b/lib/CodeGen/MIRPrinter.cpp
index 8bb5203c507..957cb20eace 100644
--- a/lib/CodeGen/MIRPrinter.cpp
+++ b/lib/CodeGen/MIRPrinter.cpp
@@ -617,9 +617,11 @@ void MIPrinter::print(const MachineOperand &Op, const TargetRegisterInfo *TRI) {
   printTargetFlags(Op);
   switch (Op.getType()) {
   case MachineOperand::MO_Register:
-    // TODO: Print the other register flags.
+    // FIXME: Serialize the tied register.
     if (Op.isImplicit())
       OS << (Op.isDef() ? "implicit-def " : "implicit ");
+    if (Op.isInternalRead())
+      OS << "internal ";
     if (Op.isDead())
       OS << "dead ";
     if (Op.isKill())
diff --git a/test/CodeGen/MIR/ARM/bundled-instructions.mir b/test/CodeGen/MIR/ARM/bundled-instructions.mir
index a13d18748c1..814c4e188ea 100644
--- a/test/CodeGen/MIR/ARM/bundled-instructions.mir
+++ b/test/CodeGen/MIR/ARM/bundled-instructions.mir
@@ -1,6 +1,6 @@
 # RUN: llc -mtriple thumbv7-apple-ios -start-after block-placement -stop-after block-placement -o /dev/null %s | FileCheck %s
 # This test ensures that the MIR parser parses the bundled machine instructions
-# correctly.
+# and 'internal' register flags correctly.
 
 --- |
 
@@ -32,7 +32,7 @@ body: |
     ; CHECK-NEXT: t2CMNri killed %r0, 78, 14, _, implicit-def %cpsr
     ; CHECK-NEXT: BUNDLE implicit-def dead %itstate, implicit-def %r1, implicit killed %cpsr {
     ; CHECK-NEXT:   t2IT 12, 8, implicit-def %itstate
-    ; CHECK-NEXT:   %r1 = t2MOVi 1, 12, killed %cpsr, _
+    ; CHECK-NEXT:   %r1 = t2MOVi 1, 12, killed %cpsr, _, implicit internal killed %itstate
     ; CHECK-NEXT: }
     ; CHECK-NEXT: %r0 = tMOVr killed %r1, 14, _
     ; CHECK-NEXT: tBX_RET 14, _, implicit killed %r0
@@ -40,7 +40,7 @@ body: |
     t2CMNri killed %r0, 78, 14, _, implicit-def %cpsr
     BUNDLE implicit-def dead %itstate, implicit-def %r1, implicit killed %cpsr {
       t2IT 12, 8, implicit-def %itstate
-      %r1 = t2MOVi 1, 12, killed %cpsr, _
+      %r1 = t2MOVi 1, 12, killed %cpsr, _, implicit internal killed %itstate
     }
     %r0 = tMOVr killed %r1, 14, _
     tBX_RET 14, _, implicit killed %r0
@@ -62,14 +62,14 @@ body: |
     ; CHECK-NEXT: t2CMNri killed %r0, 78, 14, _, implicit-def %cpsr
     ; CHECK-NEXT: BUNDLE implicit-def dead %itstate, implicit-def %r1, implicit killed %cpsr {
     ; CHECK-NEXT:   t2IT 12, 8, implicit-def %itstate
-    ; CHECK-NEXT:   %r1 = t2MOVi 1, 12, killed %cpsr, _
+    ; CHECK-NEXT:   %r1 = t2MOVi 1, 12, killed %cpsr, _, implicit internal killed %itstate
     ; CHECK-NEXT: }
     ; CHECK-NEXT: %r0 = tMOVr killed %r1, 14, _
     ; CHECK-NEXT: tBX_RET 14, _, implicit killed %r0
     %r1 = t2MOVi 0, 14, _, _
     t2CMNri killed %r0, 78, 14, _, implicit-def %cpsr
     BUNDLE implicit-def dead %itstate, implicit-def %r1, implicit killed %cpsr { t2IT 12, 8, implicit-def %itstate
-      %r1 = t2MOVi 1, 12, killed %cpsr, _
+      %r1 = t2MOVi 1, 12, killed %cpsr, _, internal implicit killed %itstate
     } %r0 = tMOVr killed %r1, 14, _
     tBX_RET 14, _, implicit killed %r0
 ...