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2008-10-30Merge from mainline.Tanya Lattner
Move the code that adds the DeadMachineInstructionElimPass from target-independent code to target-specific code. This prevents it from running on targets that aren't using fast-isel. In addition to saving compile time, this addresses the problem that not all targets are prepared for it. In order to use this pass, all instructions must declare all their fixed uses and defs of physical registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_24@58425 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-23Merge from mainline.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_24@58032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-22Merge from mainline. Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_24@57955 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Merge from mainline..Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_24@57708 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Merge from mainline.Tanya Lattner
Also update sub-register intervals after a trivial computation is rematt'ed for a copy instruction. PR2775. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_24@57706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Merge from mainline.Tanya Lattner
Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as parameters instead of raw Constants. This prevents the constants from being selected by the isel pass, fixing PR2735. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_24@57700 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-07Correctly handle calls with no return values. This fixesDan Gohman
2006-01-23-UnionInit on x86-64 when inlining is not enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57223 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-06Don't dereference the end() iterator. Thanks toDan Gohman
ENABLE_EXPENSIVE_CHECKS for finding this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57181 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-06Remove unncessary isDeclaration() checks.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-06reorder #include order, patch by Kenneth Boyd!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57148 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-06Add #include to get alloca, patch by Kenneth Boyd!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57147 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-04wrap some long lines and expand i32 mul's to libcalls, inspired by aChris Lattner
patch by Mikael Lepisto! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57077 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-04CMake: Reflected changes on source file structure. New plugin supportOscar Fuentes
for llvmc2 incomplete. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57076 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-04Fix compilation error on MSVC.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57046 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-04Fix fast-isel's handling of atomic instructions. They mayDan Gohman
expand to multiple basic blocks, in which case fast-isel needs to informed of which block to use as it resumes inserting instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57040 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-04Fix a bug in the local allocator's liveness computation where itDan Gohman
was setting kill flags on tied uses in two-address instructions. The kill flags were causing the allocator to think it could allocate the use and its tied def in different registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57039 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-03Pass MemOperand through for 64-bit atomics on 32-bit,Dale Johannesen
incidentally making the case where the memop is a pointer deref work. Fix cmp-and-swap regression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57027 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-03Use -1ULL instead of uint64_t(-1), at Anton's suggestion.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57021 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-03Fix typos pointed out by Duncan. Also untabify these files.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57018 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-03Switch the MachineOperand accessors back to the short names likeDan Gohman
isReg, etc., from isRegister, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-03The result of getSetCCResultType (eg: i32) may be largerDuncan Sands
than the type an i1 is promoted to (eg: i8). Account for this. Noticed by Tilmann Scheller on CellSPU; he will hopefully take care of fixing this in LegalizeDAG and adding a testcase! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56997 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-03Implement fast-isel support for zero-extending from i1.Dan Gohman
It turns out that this is a fairly common operation, and it's easy enough to handle. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56990 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02Optimize conditional branches in X86FastISel. This replacesDan Gohman
sequences like this: sete %al testb %al, %al jne LBB11_1 with this: je LBB11_1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56969 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02Add a new MachineBasicBlock utility function, isLayoutSuccessor, thatDan Gohman
can be used when deciding if a block can transfer control to another via a fall-through instead of a branch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56968 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02fix build gcc 4.3Andrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56965 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02Use a multimap rather than a map for holding the list of copies to insert, ↵Owen Anderson
so we don't lose copies when two of them have the same source. I don't know what I was thinking when I wrote this originally. Note: There's probably a more efficient way to do this, but I need to think about it some more, and about what determinism guarantees need to be present. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56964 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02Handle some 64-bit atomics on x86-32, some of the time.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56963 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02A Partitioned Boolean Quadratic Programming (PBQP) based register allocator.Evan Cheng
Contributed by Lang Hames. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56959 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02Fix a think-o in isSafeToMove. This fixes it from thinking thatDan Gohman
volatile memory references are safe to move. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56948 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-01Remove OptimizeForSize global. Use function attribute optsize.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56937 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-01Enable FastISel by default (on x86 and x86-64) with the -fast option.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56930 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-01Make some implicit conversions explicit, to avoid compiler warnings.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56927 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-01Fold trivial two-operand tokenfactors where the operands are equalDan Gohman
immediately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56921 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-01Fix typos in comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56919 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-01Implement the -fno-builtin option in the front-end, not in the back-end.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56900 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30Mark merged-in VNInfo's as being PHIKilled.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56893 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30Fix a simple error in renumbering kill markaers, that took an inordinant ↵Owen Anderson
amount of time to track down. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56889 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30- Initialize "--no-builtin" to "false".Bill Wendling
- Testcase for r56885. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56886 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30Add the new `-no-builtin' flag. This flag is meant to mimic the GCCBill Wendling
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero" instead of "__bzero" on Darwin10+. This arguably violates the meaning of this flag, but is currently sufficient. The meaning of this flag should become more specific over time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56885 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30Move the primary fast-isel top-level comments to FastISel.cpp, whereDan Gohman
they'll be a little more visible. Also, update and reword them a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56877 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30Optimize SelectionDAG's AssignTopologicalOrder even further.Dan Gohman
Completely eliminate the TopOrder std::vector. Instead, sort the AllNodes list in place. This also eliminates the need to call AllNodes.size(), a linear-time operation, before performing the sort. Also, eliminate the Sources temporary std::vector, since it essentially duplicates the sorted result as it is being built. This also changes the direction of the topological sort from bottom-up to top-down. The AllNodes list starts out in roughly top-down order, so this reduces the amount of reordering needed. Top-down is also more convenient for Legalize, and ISel needed only minor adjustments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56867 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30Re-apply 56835 along with header file changes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56848 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30Revert commit 56835 since it breaks the build.Duncan Sands
"If a re-materializable instruction has a register operand, the spiller will change the register operand's spill weight to HUGE_VAL to avoid it being spilled. However, if the operand is already in the queue ready to be spilled, avoid re-materializing it". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30If a re-materializable instruction has a register operand, the spiller will ↵Evan Cheng
change the register operand's spill weight to HUGE_VAL to avoid it being spilled. However, if the operand is already in the queue ready to be spilled, avoid re-materializing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56835 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-29Remove misuse of ReplaceNodeResults for atomics withDale Johannesen
valid types. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56808 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-29Fix FastISel to not initialize the PIC-base register multiple timesDan Gohman
in functions with PIC references from more than one basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56807 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26Temporarily reverting r56683. This is causing a failure during the build of ↵Bill Wendling
llvm-gcc: /Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311. ../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. {standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb" {standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression {standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb" ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56703 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26Rename ConstantSDNode's getSignExtended to getSExtValue, forDan Gohman
consistancy with ConstantInt, and re-implement it in terms of ConstantInt's getSExtValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56700 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26Fix @llvm.frameaddress codegen. FP elimination optimization should be ↵Evan Cheng
disabled when frame address is desired. Also add support for depth > 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56683 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26Add "inreg" field to CallSDNode (doesn't increaseDale Johannesen
its size). Adjust various lowering functions to pass this info through from CallInst. Use it to implement sseregparm returns on X86. Remove X86_ssecall calling convention. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56677 91177308-0d34-0410-b5e6-96231b3b80d8
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