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path: root/lib/Target/X86/X86FrameLowering.cpp
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* Change getFrameMoves to return a const reference.Rafael Espindola2013-05-11
| | | | | | | To add a frame now there is a dedicated addFrameMove which also takes care of constructing the move itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181657 91177308-0d34-0410-b5e6-96231b3b80d8
* Generate a compact unwind encoding in the face of a stack alignment push.Bill Wendling2013-05-09
| | | | | | | | | | | | | | We generate a `push' of a random register (%rax) if the stack needs to be aligned by the size of that register. However, this could mess up compact unwind generation. In particular, we want to still generate compact unwind in the presence of this monstrosity. Check if the push of of the %rax/%eax register. If it is and it's marked with the `FrameSetup' flag, then we can generate a compact unwind encoding for the function only if the push is the last FrameSetup instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181540 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify the code a bit.Bill Wendling2013-05-09
| | | | | | | | | | | The compact unwind registers were defined in two different places. It's better just to place them in the function that uses them and specify that this is a 64-bit or 32-bit machine. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181529 91177308-0d34-0410-b5e6-96231b3b80d8
* Use an enum instead of magic constants to improve readability.Bill Wendling2013-04-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179820 91177308-0d34-0410-b5e6-96231b3b80d8
* Set the compact unwind encoding to 'requires EH DWARF' if we cannot generate ↵Bill Wendling2013-04-18
| | | | | | a CU encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179808 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-format comments (and check commit access)Yiannis Tsiouris2013-02-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176270 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the eliminateCallFramePseudoInstr method from TargetRegisterInfoEli Bendersky2013-02-21
| | | | | | | | | | | | | | | | | to TargetFrameLowering, where it belongs. Incidentally, this allows us to delete some duplicated (and slightly different!) code in TRI. There are potentially other layering problems that can be cleaned up as a result, or in a similar manner. The refactoring was OK'd by Anton Korobeynikov on llvmdev. Note: this touches the target interfaces, so out-of-tree targets may be affected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175788 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up HiPE prologue emission a bit and avoid signed arithmetic tricks.Benjamin Kramer2013-02-19
| | | | | | No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175536 91177308-0d34-0410-b5e6-96231b3b80d8
* X86FrameLowering.cpp: Fixup. Sorry for the breakage.NAKAMURA Takumi2013-02-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175467 91177308-0d34-0410-b5e6-96231b3b80d8
* X86FrameLowering.cpp: Fix a warning in -Asserts. [-Wunused-variable]NAKAMURA Takumi2013-02-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175464 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a 32/64 bit incompatibility in the HiPE prologue generation.Benjamin Kramer2013-02-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175458 91177308-0d34-0410-b5e6-96231b3b80d8
* Support for HiPE-compatible code emission, patch by Yiannis Tsiouris.Benjamin Kramer2013-02-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175457 91177308-0d34-0410-b5e6-96231b3b80d8
* [ms-inline asm] Do not omit the frame pointer if we have ms-inline assembly.Chad Rosier2013-02-16
| | | | | | | | | | | If the frame pointer is omitted, and any stack changes occur in the inline assembly, e.g.: "pusha", then any C local variable or C argument references will be incorrect. I pass no judgement on anyone who would do such a thing. ;) rdar://13218191 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175334 91177308-0d34-0410-b5e6-96231b3b80d8
* This is a follow-up on r174446, now taking Atom processors intoEli Bendersky2013-02-06
| | | | | | | | | | | | | account. Atoms use LEA for updating SP in prologs/epilogs, and the exact LEA opcode depends on the data model. Also reapplying the test case which was added and then reverted (because of Atom failures), this time specifying explicitly the CPU in addition to the triple. The test case now checks all variations (data mode, cpu Atom vs. Core). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174542 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure the correct opcodes are used to SUB and ADD the stackEli Bendersky2013-02-05
| | | | | | | | | pointer in function prologs/epilogs. The opcodes should depend on the data model (LP64 vs. ILP32) rather than the architecture bit-ness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174446 91177308-0d34-0410-b5e6-96231b3b80d8
* Move all of the header files which are involved in modelling the LLVM IRChandler Carruth2013-01-02
| | | | | | | | | | | | | | | | | | | | | into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the Function::getFnAttributes method in favor of using the AttributeSetBill Wendling2012-12-30
| | | | | | | | | | directly. This is in preparation for removing the use of the 'Attribute' class as a collection of attributes. That will shift to the AttributeSet class instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171253 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename a function.Nadav Rotem2012-12-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170996 91177308-0d34-0410-b5e6-96231b3b80d8
* In some cases, due to scheduling constraints we copy the EFLAGS.Nadav Rotem2012-12-21
| | | | | | | | | | | | | | The only way to read the eflags is using push and pop. If we don't adjust the stack then we run over the first frame index. This is not something that we want to do, so we have to make sure that our machine function does not copy the flags. If it does then we have to emit the prolog that adjusts the stack. rdar://12896831 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170961 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an MF argument to MI::copyImplicitOps().Jakob Stoklund Olesen2012-12-20
| | | | | | | | | This function is often used to decorate dangling instructions, so a context reference is required to allocate memory for the operands. Also add a corresponding MachineInstrBuilder method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170797 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename the 'Attributes' class to 'Attribute'. It's going to represent a ↵Bill Wendling2012-12-19
| | | | | | single attribute in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170502 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-03
| | | | | | | | | | | | | | | | | Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up where SlotSize should be used instead of pointer size.Michael Liao2012-10-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166664 91177308-0d34-0410-b5e6-96231b3b80d8
* Resubmit the changes to llvm core to update the functions to support ↵Micah Villmow2012-10-15
| | | | | | different pointer sizes on a per address space basis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165941 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 165732 for further review.Micah Villmow2012-10-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165747 91177308-0d34-0410-b5e6-96231b3b80d8
* Add in the first iteration of support for llvm/clang/lldb to allow variable ↵Micah Villmow2012-10-11
| | | | | | per address space pointer sizes to be optimized correctly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165726 91177308-0d34-0410-b5e6-96231b3b80d8
* Create enums for the different attributes.Bill Wendling2012-10-09
| | | | | | | | We use the enums to query whether an Attributes object has that attribute. The opaque layer is responsible for knowing where that specific attribute is stored. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165488 91177308-0d34-0410-b5e6-96231b3b80d8
* Move TargetData to DataLayout.Micah Villmow2012-10-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165402 91177308-0d34-0410-b5e6-96231b3b80d8
* Update this a bit more to represent how the prologue should work:Eric Christopher2012-10-04
| | | | | | | | | | a) frame setup instructions define the prologue b) we shouldn't change our location mid-stream Add a test to make sure that the stack adjustment stays within the prologue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165250 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 165051-165049 while looking into the foreach.m failure inEric Christopher2012-10-03
| | | | | | | more detail. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165099 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Don't use a debug location for frame setup instructions in the"Eric Christopher2012-10-02
| | | | | | | This reverts 165055 and 165052 temporarily while I look at debugger failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165071 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use a debug location for frame setup instructions in theEric Christopher2012-10-02
| | | | | | | prologue. Also skip frame setup instructions when looking for the first location. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165052 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the existing DebugLoc.Eric Christopher2012-10-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165051 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the location a parameter since we may not want the next oneEric Christopher2012-10-02
| | | | | | in the block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165050 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the `hasFnAttr' method from Function.Bill Wendling2012-09-26
| | | | | | | | The hasFnAttr method has been replaced by querying the Attributes explicitly. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164725 91177308-0d34-0410-b5e6-96231b3b80d8
* With r160248 in place this code is no longer needed.Chad Rosier2012-07-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160293 91177308-0d34-0410-b5e6-96231b3b80d8
* This CL changes the function prologue and epilogue emitted on X86 when stack ↵Alexey Samsonov2012-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | needs realignment. It is intended to fix PR11468. Old prologue and epilogue looked like this: push %rbp mov %rsp, %rbp and $alignment, %rsp push %r14 push %r15 ... pop %r15 pop %r14 mov %rbp, %rsp pop %rbp The problem was to reference the locations of callee-saved registers in exception handling: locations of callee-saved had to be re-calculated regarding the stack alignment operation. It would take some effort to implement this in LLVM, as currently MachineLocation can only have the form "Register + Offset". Funciton prologue and epilogue are now changed to: push %rbp mov %rsp, %rbp push %14 push %15 and $alignment, %rsp ... lea -$size_of_saved_registers(%rbp), %rsp pop %r15 pop %r14 pop %rbp Reviewed by Chad Rosier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160248 91177308-0d34-0410-b5e6-96231b3b80d8
* Move [get|set]BasePtrStackAdjustment() from MachineFrameInfo toChad Rosier2012-07-10
| | | | | | | | X86MachineFunctionInfo as this is currently only used by X86. If this ever becomes an issue on another arch (e.g., ARM) then we can hoist it back out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160009 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for dynamic stack realignment in the presence of dynamic allocas onChad Rosier2012-07-10
| | | | | | | | | | | | | | X86. Basically, this is a reapplication of r158087 with a few fixes. Specifically, (1) the stack pointer is restored from the base pointer before popping callee-saved registers and (2) in obscure cases (see comments in patch) we must cache the value of the original stack adjustment in the prologue and apply it in the epilogue. rdar://11496434 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160002 91177308-0d34-0410-b5e6-96231b3b80d8
* Make X86 call and return instructions non-variadic.Jakob Stoklund Olesen2012-07-04
| | | | | | | Function argument and return value registers aren't part of the encoding, so they should be implicit operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159728 91177308-0d34-0410-b5e6-96231b3b80d8
* Functions calling __builtin_eh_return must have a frame pointer.Jakob Stoklund Olesen2012-06-22
| | | | | | | | | | | | | | The code in X86TargetLowering::LowerEH_RETURN() assumes that a frame pointer exists, but the frame pointer was forced by the presence of llvm.eh.unwind.init which isn't guaranteed. If llvm.eh.unwind.init is actually required in functions calling eh.return (is it?), we should diagnose that instead of emitting bad machine code. This should fix the dragonegg-x86_64-linux-gcc-4.6-test bot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158961 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert r158087.Chandler Carruth2012-06-18
| | | | | | | | | | | | | This patch causes problems when both dynamic stack realignment and dynamic allocas combine in the same function. With this patch, we no longer build the epilog correctly, and silently restore registers from the wrong position in the stack. Thanks to Matt for tracking this down, and getting at least an initial test case to Chad. I'm going to try to check a variation of that test case in so we can easily track the fixes required. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158654 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for dynamic stack realignment in the presence of dynamic allocas onChad Rosier2012-06-06
| | | | | | | | X86. rdar://11496434 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158087 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch all register list clients to the new MC*Iterator interface.Jakob Stoklund Olesen2012-06-01
| | | | | | | | | | | | | No functional change intended. Sorry for the churn. The iterator classes are supposed to help avoid giant commits like this one in the future. The TableGen-produced register lists are getting quite large, and it may be necessary to change the table representation. This makes it possible to do so without changing all clients (again). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157854 91177308-0d34-0410-b5e6-96231b3b80d8
* Use uint16_t to store register number in static tables to match other tables.Craig Topper2012-05-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157374 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up naming for consistency and other cleanup. No functional change ↵Chad Rosier2012-05-23
| | | | | | intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157358 91177308-0d34-0410-b5e6-96231b3b80d8
* X86: Use StackRegister instead of FrameRegister in getFrameIndexReference ↵Alexey Samsonov2012-05-01
| | | | | | (to generate debug info for local variables) if stack needs realignment git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155917 91177308-0d34-0410-b5e6-96231b3b80d8
* Use uint16_t to store register overlaps to reduce static data.Craig Topper2012-03-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152001 91177308-0d34-0410-b5e6-96231b3b80d8
* Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, ↵Jia Liu2012-02-18
| | | | | | MSP430, PPC, PTX, Sparc, X86, XCore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150878 91177308-0d34-0410-b5e6-96231b3b80d8
* Use LEA to adjust stack ptr for Atom. Patch by Andy Zhang.Evan Cheng2012-02-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150008 91177308-0d34-0410-b5e6-96231b3b80d8
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