[X86] Change RDRAND to use PS instead of TB.

Should be no functional change for now. A future disassembler change will prevent disassembling with 0xf2/0xf3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316339 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index 05e4716..17b74d0 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -2180,13 +2180,13 @@ let Predicates = [HasMOVBE] in {
 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
   def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
                     "rdrand{w}\t$dst",
-                    [(set GR16:$dst, EFLAGS, (X86rdrand))]>, OpSize16, TB;
+                    [(set GR16:$dst, EFLAGS, (X86rdrand))]>, OpSize16, PS;
   def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
                     "rdrand{l}\t$dst",
-                    [(set GR32:$dst, EFLAGS, (X86rdrand))]>, OpSize32, TB;
+                    [(set GR32:$dst, EFLAGS, (X86rdrand))]>, OpSize32, PS;
   def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
                      "rdrand{q}\t$dst",
-                     [(set GR64:$dst, EFLAGS, (X86rdrand))]>, TB;
+                     [(set GR64:$dst, EFLAGS, (X86rdrand))]>, PS;
 }
 
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