use Pat to implement extloadi8 and extloadi16

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31052 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index e2cf72765acf2bdc498e3c378c37926a8db81fe9..37ec3603d90ee1f4c078bc51f972b577de4bc0eb 100644 (file)
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -168,10 +168,6 @@ def LDRB    : InstARM<(ops IntRegs:$dst, IntRegs:$addr),
                        "ldrb $dst, [$addr]",
                        [(set IntRegs:$dst, (zextloadi8 IntRegs:$addr))]>;
 
-def LDRB2   : InstARM<(ops IntRegs:$dst, IntRegs:$addr),
-                       "ldrb $dst, [$addr]",
-                       [(set IntRegs:$dst, (extloadi8 IntRegs:$addr))]>;
-
 def LDRSB   : InstARM<(ops IntRegs:$dst, IntRegs:$addr),
                        "ldrsb $dst, [$addr]",
                        [(set IntRegs:$dst, (sextloadi8 IntRegs:$addr))]>;
@@ -180,10 +176,6 @@ def LDRH    : InstARM<(ops IntRegs:$dst, IntRegs:$addr),
                        "ldrh $dst, [$addr]",
                        [(set IntRegs:$dst, (zextloadi16 IntRegs:$addr))]>;
 
-def LDRH2   : InstARM<(ops IntRegs:$dst, IntRegs:$addr),
-                       "ldrh $dst, [$addr]",
-                       [(set IntRegs:$dst, (extloadi16 IntRegs:$addr))]>;
-
 def LDRSH   : InstARM<(ops IntRegs:$dst, IntRegs:$addr),
                        "ldrsh $dst, [$addr]",
                        [(set IntRegs:$dst, (sextloadi16 IntRegs:$addr))]>;
@@ -342,3 +334,8 @@ def : Pat<(ARMcall tglobaladdr:$dst),
 
 def : Pat<(ARMcall texternalsym:$dst),
           (bl texternalsym:$dst)>;
+
+def : Pat<(extloadi8 IntRegs:$addr),
+          (LDRB IntRegs:$addr)>;
+def : Pat<(extloadi16 IntRegs:$addr),
+          (LDRH IntRegs:$addr)>;