the asm matcher can't handle operands with modifiers (like ${foo:bar}).
Instead of silently ignoring these instructions, emit a hard error and
force the target author to either refactor the target or mark the 
instruction 'isCodeGenOnly'.

Mark a few instructions in ARM and MBlaze as isCodeGenOnly the are 
doing this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117858 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrThumb.td b/lib/Target/ARM/ARMInstrThumb.td
index 24bb834..bedee97 100644
--- a/lib/Target/ARM/ARMInstrThumb.td
+++ b/lib/Target/ARM/ARMInstrThumb.td
@@ -532,7 +532,8 @@
 //
 
 // These require base address to be written back or one of the loaded regs.
-let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
+let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1,
+    isCodeGenOnly = 1 in {
 def tLDM : T1I<(outs),
                (ins addrmode4:$addr, pred:$p, reglist:$dsts, variable_ops),
                IIC_iLoad_m,
@@ -547,7 +548,8 @@
                T1Encoding<{1,1,0,0,1,?}>; // A6.2 & A8.6.53
 } // mayLoad, neverHasSideEffects = 1, hasExtraDefRegAllocReq
 
-let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
+let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1,
+    isCodeGenOnly = 1 in
 def tSTM_UPD : T1It<(outs tGPR:$wb),
                     (ins addrmode4:$addr, pred:$p, reglist:$srcs, variable_ops),
                     IIC_iStore_mu,