* CPUs not having CMOV apparently do not support the newly introduced Multibyte NOPs (Agner, Optimizing subroutines in assembly

  language, An optimization guide for x86 platforms, Page 87), so restored the 32 Bit part of the old alignment 
  bytes for use on those old CPUs and use it depending on the CPU switches

git-svn-id: trunk@29777 -

compiler/x86/aasmcpu.pas

@@ -639,7 +639,7 @@ implementation
           Intel 64 and IA-32 Architectures Software Developer’s Manual
             Volume 2B: Instruction Set Reference, N-Z, January 2015
         }
-        alignarray:array[0..10] of string[11]=(
+        alignarray_cmovcpus:array[0..10] of string[11]=(
           #$66#$66#$66#$0F#$1F#$84#$00#$00#$00#$00#$00,
           #$66#$66#$0F#$1F#$84#$00#$00#$00#$00#$00,
           #$66#$0F#$1F#$84#$00#$00#$00#$00#$00,
@@ -651,6 +651,13 @@ implementation
           #$0F#$1F#$00,
           #$66#$90,
           #$90);
+        alignarray:array[0..5] of string[8]=(
+          #$8D#$B4#$26#$00#$00#$00#$00,
+          #$8D#$B6#$00#$00#$00#$00,
+          #$8D#$74#$26#$00,
+          #$8D#$76#$00,
+          #$89#$F6,
+          #$90);
       var
         bufptr : pchar;
         j : longint;
@@ -665,12 +672,24 @@ implementation
            localsize:=fillsize;
            while (localsize>0) do
             begin
-              for j:=low(alignarray) to high(alignarray) do
-               if (localsize>=length(alignarray[j])) then
-                break;
-              move(alignarray[j][1],bufptr^,length(alignarray[j]));
-              inc(bufptr,length(alignarray[j]));
-              dec(localsize,length(alignarray[j]));
+              if CPUX86_HAS_CMOV in cpu_capabilities[current_settings.cputype] then
+                begin
+                  for j:=low(alignarray_cmovcpus) to high(alignarray_cmovcpus) do
+                   if (localsize>=length(alignarray_cmovcpus[j])) then
+                    break;
+                  move(alignarray_cmovcpus[j][1],bufptr^,length(alignarray_cmovcpus[j]));
+                  inc(bufptr,length(alignarray_cmovcpus[j]));
+                  dec(localsize,length(alignarray_cmovcpus[j]));
+                end
+              else
+                begin
+                  for j:=low(alignarray) to high(alignarray) do
+                   if (localsize>=length(alignarray[j])) then
+                    break;
+                  move(alignarray[j][1],bufptr^,length(alignarray[j]));
+                  inc(bufptr,length(alignarray[j]));
+                  dec(localsize,length(alignarray[j]));
+                end
             end;
          end;
         calculatefillbuf:=pchar(@buf);