aboutsummaryrefslogtreecommitdiff
path: root/lib/CodeGen
AgeCommit message (Collapse)Author
2010-12-01PR5207: Rename overloaded APInt methods set(), clear(), flip() toJay Foad
setAllBits(), setBit(unsigned), etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120564 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30Comment typo.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120504 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30Enable sibling call optimization of libcalls which are expanded duringEvan Cheng
legalization time. Since at legalization time there is no mapping from SDNode back to the corresponding LLVM instruction and the return SDNode is target specific, this requires a target hook to check for eligibility. Only x86 and ARM support this form of sibcall optimization right now. rdar://8707777 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120501 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30Coding style. No significant functionality. Abandon linear scan styleAndrew Trick
in favor of the widespread llvm style. Capitalize variables and add newlines for visual parsing. Rename variables for readability. And other cleanup. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30add TLI support indicating that jumps are more expensive than logical operationsChris Lattner
and use this to disable a specific optimization. Patch by Micah Villmow! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120435 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120413 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30Stub out a new LiveDebugVariables pass.Jakob Stoklund Olesen
This analysis is going to run immediately after LiveIntervals. It will stay alive during register allocation and keep track of user variables mentioned in DBG_VALUE instructions. When the register allocator is moving values between registers and the stack, it is very hard to keep track of DBG_VALUE instructions. We usually get it wrong. This analysis maintains a data structure that makes it easy to update DBG_VALUE instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120385 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29Merge System into Support.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28Fix a comment typo.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-27Move more PEI-related hooks to TFIAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-27Move callee-saved regs spills / reloads to TFIAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120228 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-25Namespacify.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120146 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.Wesley Peck
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-22Implement the "if (X == 6 || X == 4)" -> "if ((X|2) == 6)" optimization.Benjamin Kramer
This currently only catches the most basic case, a two-case switch, but can be extended later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20Move some more hooks to TargetFrameInfoAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119904 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20Silence Release build warnings about unused functions.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119903 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20On X86, MEMBARRIER, MFENCE, SFENCE, LFENCE are not target memory intrinsics,Duncan Sands
so don't claim they are. They are allocated using DAG.getNode, so attempts to access MemSDNode fields results in reading off the end of the allocated memory. This fixes crashes with "llc -debug" due to debug code trying to print MemSDNode fields for these barrier nodes (since the crashes are not deterministic, use valgrind to see this). Add some nasty checking to try to catch this kind of thing in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119901 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20Removing the useless test that I added recently. It was meant as an example, ↵Andrew Trick
but not complicated enough to merit another test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119898 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20RABasic fix. Regalloc is responsible for updating block live ins.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119896 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20Whitespace.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119895 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20Check for _setjmp too, because it's also used.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119875 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-19Make isScalarToVector to return false if the node is a scalar. This will preventMon P Wang
DAGCombine from making an illegal transformation of bitcast of a scalar to a vector into a scalar_to_vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119819 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-19Don't attempt trivial coalescing for sub-register copies.Jakob Stoklund Olesen
Patch by Krister Wombell! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-19Change some methods in MCDwarf.cpp to be able to handle an arbitraryRafael Espindola
MCStreamer instead of just MCObjectStreamer. Address changes cannot be as efficient as we have to use DW_LNE_set_addres, but at least most of the logic is shared. This will be used so that, with CodeGen still using EmitDwarfLocDirective, llvm-gcc is able to produce debug_line sections without needing an assembler that supports .loc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119777 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Move getInitialFrameState() to TargetFrameInfoAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119754 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Move hasFP() and few related hooks to TargetFrameInfo.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Fix thinko: we must turn select(anyext, sext) into sext(select)Duncan Sands
not anyext(select). Spotted by Frits van Bommel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119739 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18The DAGCombiner was threading select over pairs of extending loads evenDuncan Sands
if the extension types were not the same. The result was that if you fed a select with sext and zext loads, as in the testcase, then it would get turned into a zext (or sext) of the select, which is wrong in the cases when it should have been an sext (resp. zext). Reported and diagnosed by Sebastien Deldon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119728 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Oops, missed this file when remaing ExpandPseudos to ExpandISelPseudos.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119717 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Rename ExpandPseudos to ExpandISelPseudos to help clarify its role.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119716 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Fix typos.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119712 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18ExpandPseudos doesn't have any dependencies, so it can use theDan Gohman
simple form of INITIALIZE_PASS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119707 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Change CodeGen to use .loc directives. This produces a lot more readable outputRafael Espindola
and testing is easier. A good example is the unknown-location.ll test that now can just look for ".loc 1 0 0". We also don't use a DW_LNE_set_address for every address change anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119613 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Do not throw away alignment when generating the DAG forDale Johannesen
memset; we may need it to decide between MOVAPS and MOVUPS later. Adjust a test that was looking for wrong code. PR 3866 / 8675131. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119605 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Bug 8621 fix - pointer cast stripped from inline asm constraint argument.John Thompson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119590 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Remove ARM isel hacks that fold large immediates into a pair of add, sub, and,Evan Cheng
and xor. The 32-bit move immediates can be hoisted out of loops by machine LICM but the isel hacks were preventing them. Instead, let peephole optimization pass recognize registers that are defined by immediates and the ARM target hook will fold the immediates in. Other changes include 1) do not fold and / xor into cmp to isel TST / TEQ instructions if there are multiple uses. This happens when the 'and' is live out, machine sink would have sinked the computation and that ends up pessimizing code. The peephole pass would recognize situations where the 'and' can be toggled to define CPSR and eliminate the comparison anyway. 2) Move peephole pass to after machine LICM, sink, and CSE to avoid blocking important optimizations. rdar://8663787, rdar://8241368 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119548 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17With the newly simplified SourceMgr interfaces and the generalizedChris Lattner
SrcMgrDiagHandler, we can improve clang diagnostics for inline asm: instead of reporting them on a source line of the original line, we can report it on the correct line wherever the string literal came from. For something like this: void foo() { asm("push %rax\n" ".code32\n"); } we used to get this: (note that the line in t.c isn't helpful) t.c:4:7: error: warning: ignoring directive for now asm("push %rax\n" ^ <inline asm>:2:1: note: instantiated into assembly here .code32 ^ now we get: t.c:5:8: error: warning: ignoring directive for now ".code32\n" ^ <inline asm>:2:1: note: instantiated into assembly here .code32 ^ Note that we're pointing to line 5 properly now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119488 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17now that AsmPrinter::EmitInlineAsm is factored right, we can eliminate theChris Lattner
cookie argument to the SourceMgr diagnostic stuff. This cleanly separates LLVMContext's inlineasm handler from the sourcemgr error handling definition, increasing type safety and cleaning things up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17rearrange how the handler in SourceMgr is installed, eliminating the use of Chris Lattner
the cookie argument to setDiagHandler git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17refactor the interface to EmitInlineAsm a bit, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Only avoid the check if we're the last operand before the variableEric Christopher
operands in a variadic instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119446 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Fix grammaro.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119386 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Add ExpandPseudos.cpp.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119385 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Split pseudo-instruction expansion into a separate pass, to make itDan Gohman
easier to debug, and to avoid complications when the CFG changes in the middle of the instruction selection process. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119382 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Fix emergency spilling in LiveIntervals::spillPhysRegAroundRegDefsUses.Jakob Stoklund Olesen
Always spill the full representative register at any point where any subregister is live. This fixes PR8620 which caused the old logic to get confused and not spill anything at all. The fundamental problem here is that the coalescer is too aggressive about physical register coalescing. It sometimes makes it impossible to allocate registers without these emergency spills. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119375 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Print out the register class of the current interval.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119374 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Make the verifier a little quieter on instructions that it's probablyEric Christopher
(and likely) wrong about anyhow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119320 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Remember to resize SpillSlotToUsesMap when allocating an emergency spill slot.Jakob Stoklund Olesen
Use amazing new function call technology instead of writing identical code in multiple places. This fixes PR8604. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119306 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Fix PR8612 in the standard spiller, take two.Jakob Stoklund Olesen
The live range of a register defined by an early clobber starts at the use slot, not the def slot. Except when it is an early clobber tied to a use operand. Then it starts at the def slot like a standard def. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119305 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-15Revert "Fix PR8612 in the standard spiller as well."Jakob Stoklund Olesen
This reverts r119183 which borke the buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119270 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-03 12:59:08 +0000