aboutsummaryrefslogtreecommitdiff
path: root/include/llvm/Target
AgeCommit message (Collapse)Author
2009-09-30Add a target hook to add pre- post-regalloc scheduling passes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83144 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30Remove -post-RA-schedule flag and add a TargetSubtarget method to enable ↵David Goodwin
post-register-allocation scheduling. By default it is off. For ARM, enable/disable with -mattr=+/-postrasched. Enable by default for cortex-a8. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83122 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-28Introduce the TargetInstrInfo::KILL machine instruction and get rid of theJakob Stoklund Olesen
unused DECLARE instruction. KILL is not yet used anywhere, it will replace TargetInstrInfo::IMPLICIT_DEF in the places where IMPLICIT_DEF is just used to alter liveness of physical registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83006 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27Use explicit structs instead of std::pair to map callee saved regs to spill ↵Tilmann Scheller
slots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82909 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25pr4926: ARM requires the stack pointer to be aligned, even for leaf functions.Bob Wilson
For the AAPCS ABI, SP must always be 4-byte aligned, and at any "public interface" it must be 8-byte aligned. For the older ARM APCS ABI, the stack alignment is just always 4 bytes. For X86, we currently align SP at entry to a function (e.g., to 16 bytes for Darwin), but no stack alignment is needed at other times, such as for a leaf function. After discussing this with Dan, I decided to go with the approach of adding a new "TransientStackAlignment" field to TargetFrameInfo. This value specifies the stack alignment that must be maintained even in between calls. It defaults to 1 except for ARM, where it is 4. (Some other targets may also want to set this if they have similar stack requirements. It's not currently required for PPC because it sets targetHandlesStackFrameRounding and handles the alignment in target-specific code.) The existing StackAlignment value specifies the alignment upon entry to a function, which is how we've been using it anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82767 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-24Make the end-of-itinerary mark explicit. Some cleanup.David Goodwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82709 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-20Implement the JIT side of the GDB JIT debugging interface. To enable thisReid Kleckner
feature, either build the JIT in debug mode to enable it by default or pass -jit-emit-debug to lli. Right now, the only debug information that this communicates to GDB is call frame information, since it's already being generated to support exceptions in the JIT. Eventually, when DWARF generation isn't tied so tightly to AsmPrinter, it will be easy to push that information to GDB through this interface. Here's a step-by-step breakdown of how the feature works: - The JIT generates the machine code and DWARF call frame info (.eh_frame/.debug_frame) for a function into memory. - The JIT copies that info into an in-memory ELF file with a symbol for the function. - The JIT creates a code entry pointing to the ELF buffer and adds it to a linked list hanging off of a global descriptor at a special symbol that GDB knows about. - The JIT calls a function marked noinline that GDB knows about and has put an internal breakpoint in. - GDB catches the breakpoint and reads the global descriptor to look for new code. - When sees there is new code, it reads the ELF from the inferior's memory and adds it to itself as an object file. - The JIT continues, and the next time we stop the program, we are able to produce a proper backtrace. Consider running the following program through the JIT: #include <stdio.h> void baz(short z) { long w = z + 1; printf("%d, %x\n", w, *((int*)NULL)); // SEGFAULT here } void bar(short y) { int z = y + 1; baz(z); } void foo(char x) { short y = x + 1; bar(y); } int main(int argc, char** argv) { char x = 1; foo(x); } Here is a backtrace before this patch: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x2aaaabdfbd10 (LWP 25476)] 0x00002aaaabe7d1a8 in ?? () (gdb) bt #0 0x00002aaaabe7d1a8 in ?? () #1 0x0000000000000003 in ?? () #2 0x0000000000000004 in ?? () #3 0x00032aaaabe7cfd0 in ?? () #4 0x00002aaaabe7d12c in ?? () #5 0x00022aaa00000003 in ?? () #6 0x00002aaaabe7d0aa in ?? () #7 0x01000002abe7cff0 in ?? () #8 0x00002aaaabe7d02c in ?? () #9 0x0100000000000001 in ?? () #10 0x00000000014388e0 in ?? () #11 0x00007fff00000001 in ?? () #12 0x0000000000b870a2 in llvm::JIT::runFunction (this=0x1405b70, F=0x14024e0, ArgValues=@0x7fffffffe050) at /home/rnk/llvm-gdb/lib/ExecutionEngine/JIT/JIT.cpp:395 #13 0x0000000000baa4c5 in llvm::ExecutionEngine::runFunctionAsMain (this=0x1405b70, Fn=0x14024e0, argv=@0x13f06f8, envp=0x7fffffffe3b0) at /home/rnk/llvm-gdb/lib/ExecutionEngine/ExecutionEngine.cpp:377 #14 0x00000000007ebd52 in main (argc=2, argv=0x7fffffffe398, envp=0x7fffffffe3b0) at /home/rnk/llvm-gdb/tools/lli/lli.cpp:208 And a backtrace after this patch: Program received signal SIGSEGV, Segmentation fault. 0x00002aaaabe7d1a8 in baz () (gdb) bt #0 0x00002aaaabe7d1a8 in baz () #1 0x00002aaaabe7d12c in bar () #2 0x00002aaaabe7d0aa in foo () #3 0x00002aaaabe7d02c in main () #4 0x0000000000b870a2 in llvm::JIT::runFunction (this=0x1405b70, F=0x14024e0, ArgValues=...) at /home/rnk/llvm-gdb/lib/ExecutionEngine/JIT/JIT.cpp:395 #5 0x0000000000baa4c5 in llvm::ExecutionEngine::runFunctionAsMain (this=0x1405b70, Fn=0x14024e0, argv=..., envp=0x7fffffffe3c0) at /home/rnk/llvm-gdb/lib/ExecutionEngine/ExecutionEngine.cpp:377 #6 0x00000000007ebd52 in main (argc=2, argv=0x7fffffffe3a8, envp=0x7fffffffe3c0) at /home/rnk/llvm-gdb/tools/lli/lli.cpp:208 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82418 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-20remove a dead method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82413 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-20add a helper method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-19Update comments.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82313 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-18Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that ↵Evan Cheng
sdisel will use to properly complete phi nodes. Not functionality change yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-17pass machinemoduleinfo down into getSymbolForDwarfGlobalReference, Chris Lattner
currently unused. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82157 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-16Big change #1 for personality function references:Chris Lattner
Eliminate the PersonalityPrefix/Suffix & NeedsIndirectEncoding fields from MAI: they aren't part of the asm syntax, they are related to the structure of the object file. To replace their functionality, add a new TLOF::getSymbolForDwarfGlobalReference method which asks targets to decide how to reference a global from EH in a pc-relative way. The default implementation just returns the symbol. The default darwin implementation references the symbol through an indirect $non_lazy_ptr stub. The bizarro x86-64 darwin specialization handles the weird "foo@GOTPCREL+4" hack. DwarfException.cpp now uses this to emit the reference to the symbol in the right way, and this also eliminates another horrible hack from DwarfException.cpp: - if (strcmp(MAI->getPersonalitySuffix(), "+4@GOTPCREL")) - O << "-" << MAI->getPCSymbol(); git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-15Fix apostrophos.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81856 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-14Change MCAsmStreamer to take an MCInstPrinter instead of a Chris Lattner
full AsmPrinter, and change TargetRegistry to keep track of registered MCInstPrinters. llvm-mc is still linking in the entire target foo to get the code emitter stuff, but this is an important step in the right direction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81754 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-13eliminate the TargetRegisterDesc::AsmName field, the asmprinters now have ↵Chris Lattner
this table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-13remove all but one reference to TargetRegisterDesc::AsmName.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81714 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-10Added the ParseInstruction() hook for target specific assembler directives soKevin Enderby
that things like .word can be parsed as target specific. Moved parsing .word out of AsmParser.cpp into X86AsmParser.cpp as it is 2 bytes on X86 and 4 bytes for other targets that support the .word directive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81461 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Added an abstract superclass, MCDisassembler, forSean Callanan
all disassemblers. Modified the MemoryObject to support 64-bit address spaces, regardless of the LLVM process's address width. Modified the Target class to allow extraction of a MCDisassembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81392 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Public and private corrections, warned about by icc (#304).Duncan Sands
Patch by Erick Tryzelaar. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81107 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Remove an unneeded call to c_str().Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81051 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Fixed a test that ensures the LocalRewriter does not attempt toLang Hames
avoid reloads by reusing clobbered registers. This was causing issues in 256.bzip2 when compiled with PIC for a while (starting at r78217), though the problem has since been masked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80872 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.Sandeep Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80773 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Revert commit 80428. It completely broke exceptionDuncan Sands
handling on x86-32 linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80592 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-29- Add target lowering methods to get the preferred format for the FDE and LSDABill Wendling
encodings. - Make some of the values emitted by the FDEs dependent upon the pointer size. This is in line with how GCC does things. And it has the benefit of working for Darwin in 64-bit mode now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80428 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27llvm-mc: Tweak MCCodeEmitter skeleton.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Sketch TargetRegistry support for MCCodeEmitter abstract interface.Daniel Dunbar
- Of course, nothing actually can provide this interface yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80188 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23Switch SubtargetFeature off of ostreamsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79864 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22rename TAI -> MAI, being careful not to make MAILJMP instructions :)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79777 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22move the MCAsmInfo .cpp/.h files into the right Chris Lattner
directories and rename them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79768 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79763 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22Record variable debug info at ISel time directly.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79742 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21Try again at privatizing the layout info map, with a rewritten patch.Owen Anderson
This preserves the existing behavior much more closely than my previous attempt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79663 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20Re-revert r79555. Apparently it's not just buildbot weirdness.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79578 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20Reapply r79555 for testing. Daniel's trying to work out some buildbot ↵Owen Anderson
weirdnesss. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79572 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20--- Reverse-merging r79555 into '.':Bill Wendling
U include/llvm/Target/TargetData.h U lib/Target/TargetData.cpp Temporarily revert 79555. It was causing hangs and test failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79568 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20Make the StructType->StructLayout table private to TargetData, allowing us ↵Owen Anderson
to avoid locking on it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79555 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20Reword a few comments for AnalyzeBranch and InsertBranch, and fixDan Gohman
a few typos. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79503 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19Use the schedule itinerary operand use/def cycle information to adjust ↵David Goodwin
dependence edge latency for post-RA scheduling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79425 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17Extend the instruction itinerary model to include the ability to indicate ↵David Goodwin
the def and use cycle for each operand. This additional information is optional, so existing itineraries do not need to be changed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15Reapply r79127. It was fixed by d0k.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79136 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15Revert r79127. It was causing compilation errors.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79135 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15Change allowsUnalignedMemoryAccesses to take type argument since some targetsEvan Cheng
support unaligned mem access only for certain types. (Should it be size instead?) ARM v7 supports unaligned access for i16 and i32, some v6 variants support it as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79127 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14Allow targets to specify their choice of calling conventions perAnton Korobeynikov
libcall. Take advantage of this in the ARM backend to rectify broken choice of CC when hard float is in effect. PIC16 may want to see if it could be of use in MakePIC16Libcall, which works unchanged. Patch by Sandeep! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79033 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13TargetRegistry: Change AsmPrinter constructor to be typed as returning anDaniel Dunbar
AsmPrinter instance (instead of just a FunctionPass) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13llvm-mc: Add dummy MCStreamer implementation, (eventually) for use in profiling.Daniel Dunbar
- Currently unused. - A few other random comment fixes lumped in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78960 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Remove HasCrazyBSS and add a flag in TAI to indicate that '.section' Bruno Cardoso Lopes
must be emitted for PowerPC-Linux '.bss' section git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78958 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Push LLVMContexts through the IntegerType APIs.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Add a method to return BSSSection from TargetLoweringObjectFileBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78939 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13TargetRegistry: Reorganize AsmPrinter construction so that clients pass in theDaniel Dunbar
TargetAsmInfo. This eliminates a dependency on TargetMachine.h from TargetRegistry.h, which technically was a layering violation. - Clients probably can only sensibly pass in the same TargetAsmInfo as the TargetMachine has, but there are only limited clients of this API. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78928 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-08-02 06:49:46 +0000