From: Quentin Colombet <qcolombet@apple.com>
Date: Fri, 6 May 2016 18:22:48 +0000 (+0000)
Subject: [X86] Get rid of X32_NOREX_ADDR_ACCESS register class.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d26da6c7732a1f2d4a71b1c0df792a8ba9a2624c;p=llvm

[X86] Get rid of X32_NOREX_ADDR_ACCESS register class.

According to H.J. Lu <hjl.tools@gmail.com>, this register class is never
used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268771 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index c1da3db7cec..5d2d072507b 100644
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -174,8 +174,7 @@ X86RegisterInfo::getPointerRegClass(const MachineFunction &MF,
   case 2: // NOREX GPRs.
     if (Subtarget.isTarget64BitLP64())
       return &X86::GR64_NOREXRegClass;
-    return Is64Bit ? &X86::X32_NOREX_ADDR_ACCESSRegClass
-                   : &X86::GR32_NOREXRegClass;
+    return &X86::GR32_NOREXRegClass;
   case 3: // NOREX GPRs except the stack pointer (for encoding reasons).
     if (Subtarget.isTarget64BitLP64())
       return &X86::GR64_NOREX_NOSPRegClass;
diff --git a/lib/Target/X86/X86RegisterInfo.td b/lib/Target/X86/X86RegisterInfo.td
index ef02914ae27..207182f0aaa 100644
--- a/lib/Target/X86/X86RegisterInfo.td
+++ b/lib/Target/X86/X86RegisterInfo.td
@@ -423,8 +423,6 @@ def GR64_NOREX_NOSP : RegisterClass<"X86", [i64], 64,
 // FIXME: We could allow all 64bit registers, but we would need
 // something to check that the 32 high bits are not set.
 def X32_ADDR_ACCESS : RegisterClass<"X86", [i32], 64, (add GR32, RIP)>;
-def X32_NOREX_ADDR_ACCESS : RegisterClass<"X86", [i32], 64,
-                                                      (add GR32_NOREX, RIP)>;
 
 // A class to support the 'A' assembler constraint: EAX then EDX.
 def GR32_AD : RegisterClass<"X86", [i32], 32, (add EAX, EDX)>;