Added LDRSBT, LDRHT, LDRSHT for disassembly only. And fixed encoding errors

of AI3ldsbpo, AI3ldhpo, and AI3ldshpo in ARMInstrFormats.td in the process.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96565 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMInstrFormats.td b/lib/Target/ARM/ARMInstrFormats.td
index db604580cceacb366f121637afbd9127a36156bd..ea9cdc9ca6144ba5ca32aec56cdadf1a7bcb3a6b 100644 (file)
--- a/lib/Target/ARM/ARMInstrFormats.td
+++ b/lib/Target/ARM/ARMInstrFormats.td
@@ -734,7 +734,7 @@ class AI3ldhpo<dag oops, dag iops, Format f, InstrItinClass itin,
   let Inst{6}     = 0; // S bit
   let Inst{7}     = 1;
   let Inst{20}    = 1; // L bit
-  let Inst{21}    = 1; // W bit
+  let Inst{21}    = 0; // W bit
   let Inst{24}    = 0; // P bit
   let Inst{27-25} = 0b000;
 }
@@ -747,7 +747,7 @@ class AI3ldshpo<dag oops, dag iops, Format f, InstrItinClass itin,
   let Inst{6}     = 1; // S bit
   let Inst{7}     = 1;
   let Inst{20}    = 1; // L bit
-  let Inst{21}    = 1; // W bit
+  let Inst{21}    = 0; // W bit
   let Inst{24}    = 0; // P bit
   let Inst{27-25} = 0b000;
 }
@@ -760,7 +760,7 @@ class AI3ldsbpo<dag oops, dag iops, Format f, InstrItinClass itin,
   let Inst{6}     = 1; // S bit
   let Inst{7}     = 1;
   let Inst{20}    = 1; // L bit
-  let Inst{21}    = 1; // W bit
+  let Inst{21}    = 0; // W bit
   let Inst{24}    = 0; // P bit
   let Inst{27-25} = 0b000;
 }

diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index 77831534f6f36dd61074039ccbfc01328012fe3f..5dc215b56548848d38daa979c75794cd03d371ad 100644 (file)
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -1069,7 +1069,7 @@ def LDRSB_POST: AI3ldsbpo<(outs GPR:$dst, GPR:$base_wb),
                    "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb", []>;
 }
 
-// LDRT and LDRBT are for disassembly only.
+// LDRT, LDRBT, LDRSBT, LDRHT, LDRSHT are for disassembly only.
 
 def LDRT : AI2ldwpo<(outs GPR:$dst, GPR:$base_wb),
                    (ins GPR:$base, am2offset:$offset), LdFrm, IIC_iLoadru,
@@ -1078,8 +1078,26 @@ def LDRT : AI2ldwpo<(outs GPR:$dst, GPR:$base_wb),
 }
 
 def LDRBT : AI2ldbpo<(outs GPR:$dst, GPR:$base_wb),
-                   (ins GPR:$base,am2offset:$offset), LdFrm, IIC_iLoadru,
-                   "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
+                  (ins GPR:$base,am2offset:$offset), LdFrm, IIC_iLoadru,
+                  "ldrbt", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
+  let Inst{21} = 1; // overwrite
+}
+
+def LDRSBT : AI3ldsbpo<(outs GPR:$dst, GPR:$base_wb),
+                 (ins GPR:$base,am2offset:$offset), LdMiscFrm, IIC_iLoadru,
+                 "ldrsbt", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
+  let Inst{21} = 1; // overwrite
+}
+
+def LDRHT : AI3ldhpo<(outs GPR:$dst, GPR:$base_wb),
+                  (ins GPR:$base, am3offset:$offset), LdMiscFrm, IIC_iLoadru,
+                  "ldrht", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
+  let Inst{21} = 1; // overwrite
+}
+
+def LDRSHT : AI3ldshpo<(outs GPR:$dst, GPR:$base_wb),
+                 (ins GPR:$base,am3offset:$offset), LdMiscFrm, IIC_iLoadru,
+                 "ldrsht", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
   let Inst{21} = 1; // overwrite
 }