Enable spill compaction by default for staged compilation

Enable spill compaction by default for staged compilation

Author: houjenko

IGC/AdaptorCommon/API/igc.h

@@ -178,14 +178,14 @@ typedef enum
     FCEXP_LOCAL_SCHEDULING              = ( 0x1 << 0x5 ),
     FCEXP_PRERA_SCHEDULING              = ( 0x1 << 0x6 ),
     FCEXP_NO_REMAT                      = ( 0x1 << 0x7 ),
-    FCEXP_SPILL_COMPRESSION             = ( 0x1 << 0x8 ),
+    FCEXP_NO_SPILL_COMPRESSION          = ( 0x1 << 0x8 ),
     FCEXP_LOCAL_DECL_SPLIT_GLOBAL_RA    = ( 0x1 << 0x9 ),
     FCEXP_QUICKTOKEN_ALLOC              = ( 0x1 << 0xa ),
     FCEXP_DISABLE_UNROLL                = ( 0x1 << 0xb ),
     FCEXP_TOBE_DESIGNED                 = ( 0x1 << 0xc ),
 
     // Current default stage 1 options. *Must* be updated whenever the default changes.
-    FCEXP_DEFAULT                       = ( FCEXP_DISABLE_LVN | FCEXP_LINEARSCAN | FCEXP_DISABLE_GOPT | FCEXP_LOCAL_SCHEDULING | FCEXP_PRERA_SCHEDULING | FCEXP_SPILL_COMPRESSION | FCEXP_QUICKTOKEN_ALLOC ),
+    FCEXP_DEFAULT                       = ( FCEXP_DISABLE_LVN | FCEXP_LINEARSCAN | FCEXP_DISABLE_GOPT | FCEXP_LOCAL_SCHEDULING | FCEXP_PRERA_SCHEDULING | FCEXP_NO_SPILL_COMPRESSION | FCEXP_QUICKTOKEN_ALLOC ),
 
     // Alias for UMD to indicate staged compilation must be disabled
     FCEXP_DISABLED                      = FCEXP_TOBE_DESIGNED

IGC/Compiler/CISACodeGen/CISABuilder.cpp

@@ -4992,7 +4992,7 @@ namespace IGC
             {
                 SaveOption(vISA_LocalScheduling, false);
                 SaveOption(vISA_preRA_Schedule, false);
-                SaveOption(vISA_SpillSpaceCompression, false);
+                SaveOption(vISA_SpillSpaceCompression, true);
                 SaveOption(vISA_LVN, false);
                 SaveOption(vISA_QuickTokenAllocation, true);
                 if (!context->getModuleMetaData()->compOpt.DisableFastestLinearScan &&
@@ -5015,7 +5015,7 @@ namespace IGC
                 if (FastestS1Options(context) & FCEXP_NO_REMAT)
                     SaveOption(vISA_NoRemat, true);
 
-                if (FastestS1Options(context) & FCEXP_SPILL_COMPRESSION)
+                if (FastestS1Options(context) & FCEXP_NO_SPILL_COMPRESSION)
                     SaveOption(vISA_SpillSpaceCompression, false);
 
                 if (FastestS1Options(context) & FCEXP_LOCAL_DECL_SPLIT_GLOBAL_RA)