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path: root/compiler/GHC/CmmToLlvm/CodeGen.hs
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* Fix all invalid haddock comments in the compilerZubin Duggal2022-03-291-2/+2
| | | | Fixes #20935 and #20924
* llvmGen: Handle unaligned loads/storesBen Gamari2022-02-041-7/+7
| | | | | This allows us to produce valid code for indexWord8ArrayAs*# on platforms that lack unaligned memory access.
* Introduce alignment to CmmStoreBen Gamari2022-02-041-44/+55
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* Introduce alignment in CmmLoadBen Gamari2022-02-041-32/+50
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* Fix a few Note inconsistenciesBen Gamari2022-02-011-1/+0
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* Rip out remaining SPARC supportBen Gamari2022-01-291-2/+2
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* CmmToLlvm: rename LCGConfig -> LlvmCgConfigdoyougnu2021-12-141-5/+5
| | | | | | | | | | | | | | | | | | | | CmmToLlvm: renamce lcgPlatform -> llvmCgPlatform CmmToLlvm: rename lcgContext -> llvmCgContext CmmToLlvm: rename lcgFillUndefWithGarbage CmmToLlvm: rename lcgSplitSections CmmToLlvm: lcgBmiVersion -> llvmCgBmiVersion CmmToLlvm: lcgLlvmVersion -> llvmCgLlvmVersion CmmToLlvm: lcgDoWarn -> llvmCgDoWarn CmmToLlvm: lcgLlvmConfig -> llvmCgLlvmConfig CmmToLlvm: llvmCgPlatformMisc --> llvmCgLlvmTarget
* LLVM.CodeGen: use fast-string literalsdoyougnu2021-12-141-34/+145
| | | | | | | That is remove factorization of common strings and string building code for the LLVM code gen ops. Replace these with string literals to obey the FastString rewrite rule in GHC.Data.FastString and compute the string length at compile time
* CmmToLlvm: Remove DynFlags, add LlvmCgConfigdoyougnu2021-12-141-69/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CodeOutput: LCGConfig, add handshake initLCGConfig Add two modules: GHC.CmmToLlvm.Config -- to hold the Llvm code gen config GHC.Driver.Config.CmmToLlvm -- for initialization, other utils CmmToLlvm: remove HasDynFlags, add LlvmConfig CmmToLlvm: add lcgContext to LCGConfig CmmToLlvm.Base: DynFlags --> LCGConfig Llvm: absorb LlvmOpts into LCGConfig CmmToLlvm.Ppr: swap DynFlags --> LCGConfig CmmToLlvm.CodeGen: swap DynFlags --> LCGConfig CmmToLlvm.CodeGen: swap DynFlags --> LCGConfig CmmToLlvm.Data: swap LlvmOpts --> LCGConfig CmmToLlvm: swap DynFlags --> LCGConfig CmmToLlvm: move LlvmVersion to CmmToLlvm.Config Additionally: - refactor Config and initConfig to hold LlvmVersion - push IO needed to get LlvmVersion to boundary between Cmm and LLvm code generation - remove redundant imports, this is much cleaner! CmmToLlvm.Config: store platformMisc_llvmTarget instead of all of platformMisc
* Let LLVM and C handle > native size arithmeticJohn Ericson2021-09-081-29/+31
| | | | | | 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!
* Add Word64#/Int64# primopsSylvain Henry2021-07-151-0/+31
| | | | | | | | | | | | | | | | | | | | | | | Word64#/Int64# are only used on 32-bit architectures. Before this patch, operations on these types were directly using the FFI. Now we use real primops that are then lowered into ccalls. The advantage of doing this is that we can now perform constant folding on Word64#/Int64# (#19024). Most of this work was done by John Ericson in !3658. However this patch doesn't go as far as e.g. changing Word64 to always be using Word64#. Noticeable performance improvements T9203(normal) run/alloc 89870808.0 66662456.0 -25.8% GOOD haddock.Cabal(normal) run/alloc 14215777340.8 12780374172.0 -10.1% GOOD haddock.base(normal) run/alloc 15420020877.6 13643834480.0 -11.5% GOOD Metric Decrease: T9203 haddock.Cabal haddock.base
* Cmm: fix sinking after suspendThreadSylvain Henry2021-05-191-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suppose a safe call: myCall(x,y,z) It is lowered into three unsafe calls in Cmm: r = suspendThread(...); myCall(x,y,z); resumeThread(r); Consider the following situation for myCall arguments: x = Sp[..] -- stack y = Hp[..] -- heap z = R1 -- global register r = suspendThread(...); myCall(x,y,z); resumeThread(r); The sink pass assumes that unsafe calls clobber memory (heap and stack), hence x and y assignments are not sunk after `suspendThread`. The sink pass also correctly handles global register clobbering for all unsafe calls, except `suspendThread`! `suspendThread` is special because it releases the capability the thread is running on. Hence the sink pass must also take into account global registers that are mapped into memory (in the capability). In the example above, we could get: r = suspendThread(...); z = R1 myCall(x,y,z); resumeThread(r); But this transformation isn't valid if R1 is (BaseReg->rR1) as BaseReg is invalid between suspendThread and resumeThread. This caused argument corruption at least with the C backend ("unregisterised") in #19237. Fix #19237
* Remove useless {-# LANGUAGE CPP #-} pragmasSylvain Henry2021-05-121-3/+3
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* Fully remove HsVersions.hSylvain Henry2021-05-121-2/+0
| | | | | | | | | | Replace uses of WARN macro with calls to: warnPprTrace :: Bool -> SDoc -> a -> a Remove the now unused HsVersions.h Bump haddock submodule
* Replace CPP assertions with Haskell functionsSylvain Henry2021-05-121-7/+10
| | | | | | | | | | | | | | | There is no reason to use CPP. __LINE__ and __FILE__ macros are now better replaced with GHC's CallStack. As a bonus, assert error messages now contain more information (function name, column). Here is the mapping table (HasCallStack omitted): * ASSERT: assert :: Bool -> a -> a * MASSERT: massert :: Bool -> m () * ASSERTM: assertM :: m Bool -> m () * ASSERT2: assertPpr :: Bool -> SDoc -> a -> a * MASSERT2: massertPpr :: Bool -> SDoc -> m () * ASSERTM2: assertPprM :: m Bool -> SDoc -> m ()
* LLVM: fix sized shift primops (#19215)Sylvain Henry2021-01-221-10/+20
| | | | | Ensure that shift amount parameter has the same type as the parameter to shift.
* CmmToLlvm: Sign/Zero extend parameters for foreign callsStefan Schulze Frielinghaus2021-01-171-14/+17
| | | | | | | | For some architectures the C calling convention is that any integer shorter than 64 bits is replaced by its 64 bits representation using sign or zero extension. Fixes #19023.
* Add the proper HLint rules and remove redundant keywords from compilerHécate2020-11-011-16/+14
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* Refactor CLabel pretty-printingSylvain Henry2020-09-231-1/+1
| | | | | | | | | | * Don't depend on the selected backend to know if we print Asm or C labels: we already have PprStyle to determine this. Moreover even when a native backend is used (NCG, LLVM) we may want to C headers containing pretty-printed labels, so it wasn't a good predicate anyway. * Make pretty-printing code clearer and avoid partiality
* NCG: Dwarf configurationSylvain Henry2020-08-211-1/+1
| | | | | | * remove references to DynFlags in GHC.CmmToAsm.Dwarf * add specific Dwarf options in NCGConfig instead of directly querying the debug level
* DynFlags: disentangle OutputableSylvain Henry2020-08-121-5/+8
| | | | | | | | | - put panic related functions into GHC.Utils.Panic - put trace related functions using DynFlags in GHC.Driver.Ppr One step closer making Outputable fully independent of DynFlags. Bump haddock submodule
* LLVM: fix MO_S_Mul2 support (#18434)Sylvain Henry2020-07-091-1/+9
| | | | The value indicating if the carry is useful wasn't taken into account.
* Support `timesInt2#` in LLVM backendJohn Ericson2020-07-071-1/+26
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* LLVM: refactor and comment register padding code (#17920)Sylvain Henry2020-06-231-12/+22
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* winio: Add Atomic Exchange PrimOp and implement Atomic Ptr exchanges.Tamar Christina2020-06-141-2/+13
| | | | | | | The initial version was rewritten by Tamar Christina. It was rewritten in large parts by Andreas Klebinger. Co-authored-by: Andreas Klebinger <klebinger.andreas@gmx.at>
* DynFlags refactoring VIII (#17957)Sylvain Henry2020-06-131-6/+9
| | | | | | | | | | | * Remove several uses of `sdocWithDynFlags`, especially in GHC.Llvm.* * Add LlvmOpts datatype to store Llvm backend options * Remove Outputable instances (for LlvmVar, LlvmLit, LlvmStatic and Llvm.MetaExpr) which require LlvmOpts. * Rename ppMetaExpr into ppMetaAnnotExpr (pprMetaExpr is now used in place of `ppr :: MetaExpr -> SDoc`)
* Modules: Utils and Data (#13009)Sylvain Henry2020-04-261-6/+6
| | | | | | | Update Haddock submodule Metric Increase: haddock.compiler
* Modules: Types (#13009)Sylvain Henry2020-03-291-3/+3
| | | | | | | Update Haddock submodule Metric Increase: haddock.compiler
* Refactoring: use Platform instead of DynFlags when possibleSylvain Henry2020-03-191-69/+83
| | | | | | | | Metric Decrease: ManyConstructors T12707 T13035 T1969
* PmCheck: Implement Long-distance information with Covered setsSebastian Graf2020-02-271-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Consider ```hs data T = A | B | C f :: T -> Int f A = 1 f x = case x of A -> 2 B -> 3 C -> 4 ``` Clearly, the RHS returning 2 is redundant. But we don't currently see that, because our approximation to the covered set of the inner case expression just picks up the positive information from surrounding pattern matches. It lacks the context sensivity that `x` can't be `A` anymore! Therefore, we adopt the conceptually and practically superior approach of reusing the covered set of a particular GRHS from an outer pattern match. In this case, we begin checking the `case` expression with the covered set of `f`s second clause, which encodes the information that `x` can't be `A` anymore. After this MR, we will successfully warn about the RHS returning 2 being redundant. Perhaps surprisingly, this was a great simplification to the code of both the coverage checker and the desugarer. Found a redundant case alternative in `unix` submodule, so we have to bump it with a fix. Metric Decrease: T12227
* Modules: Driver (#13009)Sylvain Henry2020-02-211-1/+1
| | | | submodule updates: nofib, haddock
* Disentangle DynFlags and SDocSylvain Henry2020-02-201-1/+1
| | | | | | | | | | | | | Remove several uses of `sdocWithDynFlags`. The remaining ones are mostly CodeGen related (e.g. depend on target platform constants) and will be fixed separately. Metric Decrease: T12425 T9961 WWRec T1969 T14683
* Modules: Llvm (#13009)Sylvain Henry2020-02-181-0/+1995
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