commit a33fa471417675d00ad08e9a8b99228e9ab3e1c8
author Bob Wilson <bob.wilson@apple.com> Mon Oct 26 22:59:12 2009 +0000
committer Bob Wilson <bob.wilson@apple.com> Mon Oct 26 22:59:12 2009 +0000
tree 248439041152a52045606d484c05cee7634317a8
parent e45ac76ee4cb552dcff208332ae349514b7bf184

Try to get ahead of Johnny Chen and pro-actively add some more ARM encoding
bits.  Johnny, please review -- I do not have a good track record of getting
these right.

llvm-svn: 85173

llvm/lib/Target/ARM/ARMInstrInfo.td

diff --git a/llvm/lib/Target/ARM/ARMInstrInfo.td b/llvm/lib/Target/ARM/ARMInstrInfo.td
index 74101c0..b692175 100644
--- a/llvm/lib/Target/ARM/ARMInstrInfo.td
+++ b/llvm/lib/Target/ARM/ARMInstrInfo.td
@@ -1092,6 +1092,7 @@
 def RSBri : AsI1<0b0011, (outs GPR:$dst), (ins GPR:$a, so_imm:$b), DPFrm,
                   IIC_iALUi, "rsb", " $dst, $a, $b",
                   [(set GPR:$dst, (sub so_imm:$b, GPR:$a))]> {
+    let Inst{20} = 0;
     let Inst{25} = 1;
 }
 
@@ -1100,6 +1101,7 @@
                   [(set GPR:$dst, (sub so_reg:$b, GPR:$a))]> {
     let Inst{4} = 1;
     let Inst{7} = 0;
+    let Inst{20} = 0;
     let Inst{25} = 0;
 }
 
@@ -1126,12 +1128,18 @@
                  DPFrm, IIC_iALUi, "rsc", " $dst, $a, $b",
                  [(set GPR:$dst, (sube so_imm:$b, GPR:$a))]>,
                  Requires<[IsARM, CarryDefIsUnused]> {
+    let Inst{20} = 0;
     let Inst{25} = 1;
 }
 def RSCrs : AsI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_reg:$b),
                  DPSoRegFrm, IIC_iALUsr, "rsc", " $dst, $a, $b",
                  [(set GPR:$dst, (sube so_reg:$b, GPR:$a))]>,
-                 Requires<[IsARM, CarryDefIsUnused]>;
+                 Requires<[IsARM, CarryDefIsUnused]> {
+    let Inst{4} = 1;
+    let Inst{7} = 0;
+    let Inst{20} = 0;
+    let Inst{25} = 0;
+}
 }
 
 // FIXME: Allow these to be predicated.
@@ -1140,12 +1148,18 @@
                   DPFrm, IIC_iALUi, "rscs $dst, $a, $b",
                   [(set GPR:$dst, (sube so_imm:$b, GPR:$a))]>,
                   Requires<[IsARM, CarryDefIsUnused]> {
+    let Inst{20} = 1;
     let Inst{25} = 1;
 }
 def RSCSrs : AXI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_reg:$b),
                   DPSoRegFrm, IIC_iALUsr, "rscs $dst, $a, $b",
                   [(set GPR:$dst, (sube so_reg:$b, GPR:$a))]>,
-                  Requires<[IsARM, CarryDefIsUnused]>;
+                  Requires<[IsARM, CarryDefIsUnused]> {
+    let Inst{4} = 1;
+    let Inst{7} = 0;
+    let Inst{20} = 1;
+    let Inst{25} = 0;
+}
 }
 
 // (sub X, imm) gets canonicalized to (add X, -imm).  Match this form.