Add spill/reload pseudo instrs to MachInstrs

[ghc-hetmet.git] / compiler / nativeGen / MachInstrs.hs

diff --git a/compiler/nativeGen/MachInstrs.hs b/compiler/nativeGen/MachInstrs.hs
index 6316d94..0c5dbdd 100644 (file)
--- a/compiler/nativeGen/MachInstrs.hs
+++ b/compiler/nativeGen/MachInstrs.hs
@@ -52,8 +52,8 @@ import GHC.Exts
 -- Our flavours of the Cmm types
 
 -- Type synonyms for Cmm populated with native code
-type NatCmm        = GenCmm CmmStatic Instr
-type NatCmmTop     = GenCmmTop CmmStatic Instr
+type NatCmm        = GenCmm CmmStatic [CmmStatic] Instr
+type NatCmmTop     = GenCmmTop CmmStatic [CmmStatic] Instr
 type NatBasicBlock = GenBasicBlock Instr
 
 -- -----------------------------------------------------------------------------
@@ -226,6 +226,9 @@ data Instr
   | DELTA   Int                 -- specify current stack offset for
                                 -- benefit of subsequent passes
 
+  | SPILL   Reg Int            -- ^ spill this reg to a stack slot
+  | RELOAD  Int Reg            -- ^ reload this reg from a stack slot
+
 -- -----------------------------------------------------------------------------
 -- Alpha instructions