Thumb2 assembly parsing STMDB w/ optional .w suffix.

rdar://10422955

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144242 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index d06510744a11242108a76dfde155d28765e63f52..0a282266c400ea34e108a28f8e3f1d7a859ba61f 100644 (file)
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -3971,6 +3971,12 @@ def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
 
+// STMDB/STMDB_UPD aliases w/ the optional .w suffix
+def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
+                  (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
+def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
+                  (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
+
 // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
 def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
                   (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;

diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s
index b9205a357c3e360e945d435abd9ffc9062c17a28..061f991dd28e8dc99cb1b11182e630f56a6f6bd1 100644 (file)
--- a/test/MC/ARM/basic-thumb2-instructions.s
+++ b/test/MC/ARM/basic-thumb2-instructions.s
@@ -2303,11 +2303,13 @@ _func:
         stmdb r4, {r5, r6}
         stmdb r5!, {r3, r8}
         stmea r5!, {r3, r8}
+        stmdb.w r5, {r0, r1}
 
 @ CHECK: stmdb r4, {r4, r5, r8, r9}    @ encoding: [0x04,0xe9,0x30,0x03]
 @ CHECK: stmdb r4, {r5, r6}            @ encoding: [0x04,0xe9,0x60,0x00]
 @ CHECK: stmdb r5!, {r3, r8}           @ encoding: [0x25,0xe9,0x08,0x01]
 @ CHECK: stm.w r5!, {r3, r8}           @ encoding: [0xa5,0xe8,0x08,0x01]
+@ CHECK: stmdb r5, {r0, r1}            @ encoding: [0x05,0xe9,0x03,0x00]
 
 
 @------------------------------------------------------------------------------