From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Sat, 9 Dec 2017 20:42:27 +0000 (+0000)
Subject: [X86] Tag FS/GS BASE R/W instruction scheduler classes
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d06214010cb4ebbb33a38d8679c772b720435349;p=llvm

[X86] Tag FS/GS BASE R/W instruction scheduler classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320264 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86InstrSystem.td b/lib/Target/X86/X86InstrSystem.td
index 0c2c78e30a0..d21d344db38 100644
--- a/lib/Target/X86/X86InstrSystem.td
+++ b/lib/Target/X86/X86InstrSystem.td
@@ -643,31 +643,38 @@ let Uses = [EAX, ECX, EDX] in
 
 //===----------------------------------------------------------------------===//
 // FS/GS Base Instructions
-let Predicates = [HasFSGSBase, In64BitMode] in {
+let Predicates = [HasFSGSBase, In64BitMode], SchedRW = [WriteSystem] in {
   def RDFSBASE : I<0xAE, MRM0r, (outs GR32:$dst), (ins),
                    "rdfsbase{l}\t$dst",
-                   [(set GR32:$dst, (int_x86_rdfsbase_32))]>, XS;
+                   [(set GR32:$dst, (int_x86_rdfsbase_32))],
+                   IIC_SEGMENT_BASE_R>, XS;
   def RDFSBASE64 : RI<0xAE, MRM0r, (outs GR64:$dst), (ins),
                      "rdfsbase{q}\t$dst",
-                     [(set GR64:$dst, (int_x86_rdfsbase_64))]>, XS;
+                     [(set GR64:$dst, (int_x86_rdfsbase_64))],
+                     IIC_SEGMENT_BASE_R>, XS;
   def RDGSBASE : I<0xAE, MRM1r, (outs GR32:$dst), (ins),
                    "rdgsbase{l}\t$dst",
-                   [(set GR32:$dst, (int_x86_rdgsbase_32))]>, XS;
+                   [(set GR32:$dst, (int_x86_rdgsbase_32))],
+                   IIC_SEGMENT_BASE_R>, XS;
   def RDGSBASE64 : RI<0xAE, MRM1r, (outs GR64:$dst), (ins),
                      "rdgsbase{q}\t$dst",
-                     [(set GR64:$dst, (int_x86_rdgsbase_64))]>, XS;
+                     [(set GR64:$dst, (int_x86_rdgsbase_64))],
+                     IIC_SEGMENT_BASE_R>, XS;
   def WRFSBASE : I<0xAE, MRM2r, (outs), (ins GR32:$src),
                    "wrfsbase{l}\t$src",
-                   [(int_x86_wrfsbase_32 GR32:$src)]>, XS;
+                   [(int_x86_wrfsbase_32 GR32:$src)],
+                   IIC_SEGMENT_BASE_W>, XS;
   def WRFSBASE64 : RI<0xAE, MRM2r, (outs), (ins GR64:$src),
                       "wrfsbase{q}\t$src",
-                      [(int_x86_wrfsbase_64 GR64:$src)]>, XS;
+                      [(int_x86_wrfsbase_64 GR64:$src)],
+                      IIC_SEGMENT_BASE_W>, XS;
   def WRGSBASE : I<0xAE, MRM3r, (outs), (ins GR32:$src),
                    "wrgsbase{l}\t$src",
-                   [(int_x86_wrgsbase_32 GR32:$src)]>, XS;
+                   [(int_x86_wrgsbase_32 GR32:$src)], IIC_SEGMENT_BASE_W>, XS;
   def WRGSBASE64 : RI<0xAE, MRM3r, (outs), (ins GR64:$src),
                       "wrgsbase{q}\t$src",
-                      [(int_x86_wrgsbase_64 GR64:$src)]>, XS;
+                      [(int_x86_wrgsbase_64 GR64:$src)],
+                      IIC_SEGMENT_BASE_W>, XS;
 }
 
 //===----------------------------------------------------------------------===//
diff --git a/lib/Target/X86/X86Schedule.td b/lib/Target/X86/X86Schedule.td
index ae22850408c..bad3b7fc091 100644
--- a/lib/Target/X86/X86Schedule.td
+++ b/lib/Target/X86/X86Schedule.td
@@ -547,6 +547,8 @@ def IIC_PUSH_CS : InstrItinClass;
 def IIC_PUSH_SR : InstrItinClass;
 def IIC_POP_SR : InstrItinClass;
 def IIC_POP_SR_SS : InstrItinClass;
+def IIC_SEGMENT_BASE_R : InstrItinClass;
+def IIC_SEGMENT_BASE_W : InstrItinClass;
 def IIC_VERR : InstrItinClass;
 def IIC_VERW_REG : InstrItinClass;
 def IIC_VERW_MEM : InstrItinClass;