Thumb instructions CBZ and CBNZ are Thumb2, not THumb1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137956 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 28 insertions, 25 deletions

diff --git a/lib/Target/ARM/ARMInstrThumb.td b/lib/Target/ARM/ARMInstrThumb.td
index 6a9b04f931..af502b63c6 100644
--- a/lib/Target/ARM/ARMInstrThumb.td
+++ b/lib/Target/ARM/ARMInstrThumb.td
@@ -490,31 +490,6 @@ let isBranch = 1, isTerminator = 1 in
   let Inst{7-0} = target;
 }
 
-// Compare and branch on zero / non-zero
-let isBranch = 1, isTerminator = 1 in {
-  def tCBZ  : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
-                  "cbz\t$Rn, $target", []>,
-              T1Misc<{0,0,?,1,?,?,?}> {
-    // A8.6.27
-    bits<6> target;
-    bits<3> Rn;
-    let Inst{9}   = target{5};
-    let Inst{7-3} = target{4-0};
-    let Inst{2-0} = Rn;
-  }
-
-  def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
-                  "cbnz\t$Rn, $target", []>,
-              T1Misc<{1,0,?,1,?,?,?}> {
-    // A8.6.27
-    bits<6> target;
-    bits<3> Rn;
-    let Inst{9}   = target{5};
-    let Inst{7-3} = target{4-0};
-    let Inst{2-0} = Rn;
-  }
-}
-
 // Tail calls
 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
   // Darwin versions.
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 03ce575f6a..fbe80c2f24 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -3052,6 +3052,34 @@ def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
   let Inst{19-16} = func;
 }
 
+// Compare and branch on zero / non-zero
+let isBranch = 1, isTerminator = 1 in {
+  def tCBZ  : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
+                  "cbz\t$Rn, $target", []>,
+              T1Misc<{0,0,?,1,?,?,?}>,
+              Requires<[IsThumb2]> {
+    // A8.6.27
+    bits<6> target;
+    bits<3> Rn;
+    let Inst{9}   = target{5};
+    let Inst{7-3} = target{4-0};
+    let Inst{2-0} = Rn;
+  }
+
+  def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
+                  "cbnz\t$Rn, $target", []>,
+              T1Misc<{1,0,?,1,?,?,?}>,
+              Requires<[IsThumb2]> {
+    // A8.6.27
+    bits<6> target;
+    bits<3> Rn;
+    let Inst{9}   = target{5};
+    let Inst{7-3} = target{4-0};
+    let Inst{2-0} = Rn;
+  }
+}
+
+
 // Change Processor State is a system instruction -- for disassembly and
 // parsing only.
 // FIXME: Since the asm parser has currently no clean way to handle optional