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path: root/lib/Target/X86/X86FrameLowering.cpp
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* (this is a corrected patch)Yaron Keren2013-10-23
| | | | | | | | | | | | | | | | Calling _chkstk is required on ELF as well as COFF on Windows. Without _chkstk, functions requiring large stack crash in initialization code. Previous code tested for COFF format but not Mach-O and this patch modifies the code to test for Windows OS (both Windows target and MingW target) but not Mach-O object format: Looks like macho environment was used to build some EFI code. Credits to Andrew MacPherson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193289 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Calling _chkstk is required on ELF as well as COFF on Windows. ↵Rafael Espindola2013-10-23
| | | | | | | | | | Without _chkstk functions requiring large stack crash in initialization code. Previous code tested for COFF format but not Mach-O and this patch modifies the code to test for Windows." This reverts commit r193263. It is causing CodeGen/X86/mingw-alloca.ll to fail. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193275 91177308-0d34-0410-b5e6-96231b3b80d8
* Calling _chkstk is required on ELF as well as COFF on Windows. Yaron Keren2013-10-23
| | | | | | | | | | | | Without _chkstk functions requiring large stack crash in initialization code. Previous code tested for COFF format but not Mach-O and this patch modifies the code to test for Windows. Credits to Andrew MacPherson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193263 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r190366. It was breaking build bots.Bill Wendling2013-09-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190373 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a default value for the prologue's debug location.Bill Wendling2013-09-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190366 91177308-0d34-0410-b5e6-96231b3b80d8
* Generate compact unwind encoding from CFI directives.Bill Wendling2013-09-09
| | | | | | | | | | | | | | | | We used to generate the compact unwind encoding from the machine instructions. However, this had the problem that if the user used `-save-temps' or compiled their hand-written `.s' file (with CFI directives), we wouldn't generate the compact unwind encoding. Move the algorithm that generates the compact unwind encoding into the MCAsmBackend. This way we can generate the encoding whether the code is from a `.ll' or `.s' file. <rdar://problem/13623355> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190290 91177308-0d34-0410-b5e6-96231b3b80d8
* WIP: Refactor some code so that it can be called by more than just one ↵Bill Wendling2013-09-03
| | | | | | method. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189849 91177308-0d34-0410-b5e6-96231b3b80d8
* Constify the function parameters.Bill Wendling2013-08-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188469 91177308-0d34-0410-b5e6-96231b3b80d8
* X86: correct tail return address calculationTim Northover2013-08-04
| | | | | | | | | | | Due to the weird and wondeful usual arithmetic conversions, some calculations involving negative values were getting performed in uint32_t and then promoted to int64_t, which is really not a good idea. Patch by Katsuhiro Ueno. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187703 91177308-0d34-0410-b5e6-96231b3b80d8
* Reuse %rax after calling __chkstk on win64Nico Rieck2013-07-08
| | | | | | Reapply this as I reverted the wrong commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185807 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Reuse %rax after calling __chkstk on win64"Nico Rieck2013-07-08
| | | | | | This reverts commit 01f8d579f7672872324208ac5bc4ac311e81b22e. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185781 91177308-0d34-0410-b5e6-96231b3b80d8
* Reuse %rax after calling __chkstk on win64Nico Rieck2013-07-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185778 91177308-0d34-0410-b5e6-96231b3b80d8
* Use pointers to the MCAsmInfo and MCRegInfo.Bill Wendling2013-06-18
| | | | | | | | | | Someone may want to do something crazy, like replace these objects if they change or something. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184175 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove addFrameMove.Rafael Espindola2013-05-16
| | | | | | | Now that we have good testing, remove addFrameMove and create cfi instructions directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182052 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete dead code.Rafael Espindola2013-05-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181982 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete dead code.Rafael Espindola2013-05-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181941 91177308-0d34-0410-b5e6-96231b3b80d8
* 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
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