diff options
Diffstat (limited to 'compiler/GHC/CmmToLlvm/CodeGen.hs')
| -rw-r--r-- | compiler/GHC/CmmToLlvm/CodeGen.hs | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/compiler/GHC/CmmToLlvm/CodeGen.hs b/compiler/GHC/CmmToLlvm/CodeGen.hs index 672fc84e43..53f17f545c 100644 --- a/compiler/GHC/CmmToLlvm/CodeGen.hs +++ b/compiler/GHC/CmmToLlvm/CodeGen.hs @@ -281,6 +281,16 @@ genCall (PrimTarget (MO_Cmpxchg _width)) retVar' <- doExprW targetTy $ ExtractV retVar 0 statement $ Store retVar' dstVar +genCall (PrimTarget (MO_Xchg _width)) [dst] [addr, val] = runStmtsDecls $ do + dstV <- getCmmRegW (CmmLocal dst) :: WriterT LlvmAccum LlvmM LlvmVar + addrVar <- exprToVarW addr + valVar <- exprToVarW val + let ptrTy = pLift $ getVarType valVar + ptrExpr = Cast LM_Inttoptr addrVar ptrTy + ptrVar <- doExprW ptrTy ptrExpr + resVar <- doExprW (getVarType valVar) (AtomicRMW LAO_Xchg ptrVar valVar SyncSeqCst) + statement $ Store resVar dstV + genCall (PrimTarget (MO_AtomicWrite _width)) [] [addr, val] = runStmtsDecls $ do addrVar <- exprToVarW addr valVar <- exprToVarW val @@ -856,6 +866,7 @@ cmmPrimOpFunctions mop = do MO_AtomicRMW _ _ -> unsupported MO_AtomicWrite _ -> unsupported MO_Cmpxchg _ -> unsupported + MO_Xchg _ -> unsupported -- | Tail function calls genJump :: CmmExpr -> [GlobalReg] -> LlvmM StmtData @@ -1946,10 +1957,10 @@ toIWord platform = mkIntLit (llvmWord platform) -- | Error functions -panic :: String -> a +panic :: HasCallStack => String -> a panic s = Outputable.panic $ "GHC.CmmToLlvm.CodeGen." ++ s -pprPanic :: String -> SDoc -> a +pprPanic :: HasCallStack => String -> SDoc -> a pprPanic s d = Outputable.pprPanic ("GHC.CmmToLlvm.CodeGen." ++ s) d |