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authorJohn Ericson <John.Ericson@Obsidian.Systems>2021-07-19 04:06:33 +0000
committerMarge Bot <ben+marge-bot@smart-cactus.org>2021-09-08 02:57:55 -0400
commitbeef61351b240967b49169d27a9a19565cf3c4af (patch)
tree7ef77954391b2babe2772144a5e37cc8d8b4231d /compiler/GHC/CmmToC.hs
parent6ea9b3ee4454b87ecc017d89f131a80f57ef65aa (diff)
downloadhaskell-beef61351b240967b49169d27a9a19565cf3c4af.tar.gz
Let LLVM and C handle > native size arithmetic
NCG needs to call slow FFI functions where we "borrow" the C compiler's implementation, but there is no reason why we need to do that for LLVM, or the unregisterized backend where everything is via C anyways!
Diffstat (limited to 'compiler/GHC/CmmToC.hs')
-rw-r--r--compiler/GHC/CmmToC.hs65
1 files changed, 34 insertions, 31 deletions
diff --git a/compiler/GHC/CmmToC.hs b/compiler/GHC/CmmToC.hs
index 3008f01c5c..e259cdb55d 100644
--- a/compiler/GHC/CmmToC.hs
+++ b/compiler/GHC/CmmToC.hs
@@ -860,40 +860,43 @@ pprCallishMachOp_for_C mop
MO_SubIntC {} -> unsupported
MO_U_Mul2 {} -> unsupported
MO_Touch -> unsupported
+ -- we could support prefetch via "__builtin_prefetch"
+ -- Not adding it for now
(MO_Prefetch_Data _ ) -> unsupported
- --- we could support prefetch via "__builtin_prefetch"
- --- Not adding it for now
- MO_I64_ToI -> text "hs_int64ToInt"
- MO_I64_FromI -> text "hs_intToInt64"
- MO_W64_ToW -> text "hs_word64ToWord"
- MO_W64_FromW -> text "hs_wordToWord64"
- MO_x64_Neg -> text "hs_neg64"
- MO_x64_Add -> text "hs_add64"
- MO_x64_Sub -> text "hs_sub64"
- MO_x64_Mul -> text "hs_mul64"
- MO_I64_Quot -> text "hs_quotInt64"
- MO_I64_Rem -> text "hs_remInt64"
- MO_W64_Quot -> text "hs_quotWord64"
- MO_W64_Rem -> text "hs_remWord64"
- MO_x64_And -> text "hs_and64"
- MO_x64_Or -> text "hs_xor64"
- MO_x64_Xor -> text "hs_xor64"
- MO_x64_Not -> text "hs_not64"
- MO_x64_Shl -> text "hs_uncheckedShiftL64"
- MO_I64_Shr -> text "hs_uncheckedIShiftRA64"
- MO_W64_Shr -> text "hs_uncheckedShiftRL64"
- MO_x64_Eq -> text "hs_eq64"
- MO_x64_Ne -> text "hs_ne64"
- MO_I64_Ge -> text "hs_geInt64"
- MO_I64_Gt -> text "hs_gtInt64"
- MO_I64_Le -> text "hs_leInt64"
- MO_I64_Lt -> text "hs_ltInt64"
- MO_W64_Ge -> text "hs_geWord64"
- MO_W64_Gt -> text "hs_gtWord64"
- MO_W64_Le -> text "hs_leWord64"
- MO_W64_Lt -> text "hs_ltWord64"
+
+ MO_I64_ToI -> dontReach64
+ MO_I64_FromI -> dontReach64
+ MO_W64_ToW -> dontReach64
+ MO_W64_FromW -> dontReach64
+ MO_x64_Neg -> dontReach64
+ MO_x64_Add -> dontReach64
+ MO_x64_Sub -> dontReach64
+ MO_x64_Mul -> dontReach64
+ MO_I64_Quot -> dontReach64
+ MO_I64_Rem -> dontReach64
+ MO_W64_Quot -> dontReach64
+ MO_W64_Rem -> dontReach64
+ MO_x64_And -> dontReach64
+ MO_x64_Or -> dontReach64
+ MO_x64_Xor -> dontReach64
+ MO_x64_Not -> dontReach64
+ MO_x64_Shl -> dontReach64
+ MO_I64_Shr -> dontReach64
+ MO_W64_Shr -> dontReach64
+ MO_x64_Eq -> dontReach64
+ MO_x64_Ne -> dontReach64
+ MO_I64_Ge -> dontReach64
+ MO_I64_Gt -> dontReach64
+ MO_I64_Le -> dontReach64
+ MO_I64_Lt -> dontReach64
+ MO_W64_Ge -> dontReach64
+ MO_W64_Gt -> dontReach64
+ MO_W64_Le -> dontReach64
+ MO_W64_Lt -> dontReach64
where unsupported = panic ("pprCallishMachOp_for_C: " ++ show mop
++ " not supported!")
+ dontReach64 = panic ("pprCallishMachOp_for_C: " ++ show mop
+ ++ " should be not be encountered because the regular primop for this 64-bit operation is used instead.")
-- ---------------------------------------------------------------------
-- Useful #defines