Output ELF .size directives for functions

[ghc-hetmet.git] / compiler / nativeGen / X86 / Ppr.hs

diff --git a/compiler/nativeGen/X86/Ppr.hs b/compiler/nativeGen/X86/Ppr.hs
index 0ca230b..4c3454d 100644 (file)
--- a/compiler/nativeGen/X86/Ppr.hs
+++ b/compiler/nativeGen/X86/Ppr.hs
@@ -32,16 +32,17 @@ import Reg
 import PprBase
 
 
-import BlockId
-import Cmm
+import OldCmm
 import CLabel
-import Unique           ( pprUnique )
+import Config
+import Unique           ( pprUnique, Uniquable(..) )
 import Pretty
 import FastString
 import qualified Outputable
 import Outputable       (panic, Outputable)
 
 import Data.Word
+import Distribution.System
 
 #if i386_TARGET_ARCH && darwin_TARGET_OS
 import Data.Bits
@@ -55,9 +56,9 @@ pprNatCmmTop (CmmData section dats) =
   pprSectionHeader section $$ vcat (map pprData dats)
 
  -- special case for split markers:
-pprNatCmmTop (CmmProc [] lbl _ (ListGraph [])) = pprLabel lbl
+pprNatCmmTop (CmmProc [] lbl (ListGraph [])) = pprLabel lbl
 
-pprNatCmmTop (CmmProc info lbl _ (ListGraph blocks)) =
+pprNatCmmTop (CmmProc info lbl (ListGraph blocks)) =
   pprSectionHeader Text $$
   (if null info then -- blocks guaranteed not null, so label needed
        pprLabel lbl
@@ -86,11 +87,21 @@ pprNatCmmTop (CmmProc info lbl _ (ListGraph blocks)) =
                       <+> pprCLabel_asm (mkDeadStripPreventer $ entryLblToInfoLbl lbl)
                     else empty
 #endif
+   $$ pprSizeDecl (if null info then lbl else entryLblToInfoLbl lbl)
 
+-- | Output the ELF .size directive.
+pprSizeDecl :: CLabel -> Doc
+#if elf_OBJ_FORMAT
+pprSizeDecl lbl =
+    ptext (sLit "\t.size") <+> pprCLabel_asm lbl
+    <> ptext (sLit ", .-") <> pprCLabel_asm lbl
+#else
+pprSizeDecl _ = empty
+#endif
 
 pprBasicBlock :: NatBasicBlock Instr -> Doc
-pprBasicBlock (BasicBlock (BlockId id) instrs) =
-  pprLabel (mkAsmTempLabel id) $$
+pprBasicBlock (BasicBlock blockid instrs) =
+  pprLabel (mkAsmTempLabel (getUnique blockid)) $$
   vcat (map pprInstr instrs)
 
 
@@ -161,15 +172,11 @@ instance Outputable Instr where
     ppr instr = Outputable.docToSDoc $ pprInstr instr
 
 
-#if  i386_TARGET_ARCH || x86_64_TARGET_ARCH
 pprUserReg :: Reg -> Doc
-pprUserReg = pprReg IF_ARCH_i386(II32,) IF_ARCH_x86_64(II64,)
-
-#else
-pprUserReg :: Reg -> Doc
-pprUserReg = panic "X86.Ppr.pprUserReg: not defined"
-
-#endif
+pprUserReg
+ | cTargetArch == I386   = pprReg II32
+ | cTargetArch == X86_64 = pprReg II64
+ | otherwise             = panic "X86.Ppr.pprUserReg: not defined"
 
 pprReg :: Size -> Reg -> Doc
 
@@ -621,15 +628,15 @@ pprInstr (CLTD II64) = ptext (sLit "\tcqto")
 
 pprInstr (SETCC cond op) = pprCondInstr (sLit "set") cond (pprOperand II8 op)
 
-pprInstr (JXX cond (BlockId id))
+pprInstr (JXX cond blockid)
   = pprCondInstr (sLit "j") cond (pprCLabel_asm lab)
-  where lab = mkAsmTempLabel id
+  where lab = mkAsmTempLabel (getUnique blockid)
 
 pprInstr (JXX_GBL cond imm) = pprCondInstr (sLit "j") cond (pprImm imm)
 
 pprInstr (JMP (OpImm imm)) = (<>) (ptext (sLit "\tjmp ")) (pprImm imm)
 pprInstr (JMP op)          = (<>) (ptext (sLit "\tjmp *")) (pprOperand archWordSize op)
-pprInstr (JMP_TBL op _)  = pprInstr (JMP op)
+pprInstr (JMP_TBL op _ _ _)  = pprInstr (JMP op)
 pprInstr (CALL (Left imm) _)    = (<>) (ptext (sLit "\tcall ")) (pprImm imm)
 pprInstr (CALL (Right reg) _)   = (<>) (ptext (sLit "\tcall *")) (pprReg archWordSize reg)
 
@@ -723,6 +730,11 @@ pprInstr g@(GITOD src dst)
                    text " ; fildl (%esp) ; ",
                    gpop dst 1, text " ; addl $4,%esp"])
 
+pprInstr g@(GDTOF src dst)
+  = pprG g (vcat [gtab <> gpush src 0,
+                  gtab <> text "subl $4,%esp ; fstps (%esp) ; flds (%esp) ; addl $4,%esp ;",
+                  gtab <> gpop dst 1])
+
 {- Gruesome swamp follows.  If you're unfortunate enough to have ventured
    this far into the jungle AND you give a Rat's Ass (tm) what's going
    on, here's the deal.  Generate code to do a floating point comparison
@@ -978,6 +990,7 @@ pprGInstr (GDTOI src dst) = pprSizeSizeRegReg (sLit "gdtoi") FF64 II32 src dst
 
 pprGInstr (GITOF src dst) = pprSizeSizeRegReg (sLit "gitof") II32 FF32  src dst
 pprGInstr (GITOD src dst) = pprSizeSizeRegReg (sLit "gitod") II32 FF64 src dst
+pprGInstr (GDTOF src dst) = pprSizeSizeRegReg (sLit "gdtof") FF64 FF32 src dst
 
 pprGInstr (GCMP co src dst) = pprCondRegReg (sLit "gcmp_") FF64 co src dst
 pprGInstr (GABS sz src dst) = pprSizeRegReg (sLit "gabs") sz src dst