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* Temporarily reverting 46959.Evan Cheng2008-02-251-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47542 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an issue where GVN would try to use an instruction before its definition ↵Owen Anderson2008-02-252-1/+26
| | | | | | when performing return slot optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47541 91177308-0d34-0410-b5e6-96231b3b80d8
* Backing out r47521 for now. This has broken a number of tests.Evan Cheng2008-02-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47533 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge current work back to tree to minimize diffs and drift. Major highlightsScott Michel2008-02-231-3/+2
| | | | | | | | | | | | | | | for CellSPU modifications: - SPUInstrInfo.td refactoring: "multiclass" really is _your_ friend. - Other improvements based on refactoring effort in SPUISelLowering.cpp, esp. in SPUISelLowering::PerformDAGCombine(), where zero amount shifts and rotates are now eliminiated, other scalar-to-vector-to-scalar silliness is also eliminated. - 64-bit operations are being implemented, _muldi3.c gcc runtime now compiles and generates the right code. More work still needs to be done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47532 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for Revision 47478.Zhou Sheng2008-02-231-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47531 91177308-0d34-0410-b5e6-96231b3b80d8
* Rematerialization logic was overly conservative when it comes to loads from ↵Evan Cheng2008-02-231-0/+49
| | | | | | fixed stack slots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47529 91177308-0d34-0410-b5e6-96231b3b80d8
* Update test.Evan Cheng2008-02-231-11/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47527 91177308-0d34-0410-b5e6-96231b3b80d8
* Remat of pic loads are now on by default.Evan Cheng2008-02-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47525 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug that caused opt and other tools to silently ignoreDan Gohman2008-02-231-0/+3
| | | | | | | invalid command-line options. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47523 91177308-0d34-0410-b5e6-96231b3b80d8
* Properly read and write bitcodes for multiple return values.Devang Patel2008-02-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47521 91177308-0d34-0410-b5e6-96231b3b80d8
* Really. Why doesn't every arch support MMX?Evan Cheng2008-02-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47513 91177308-0d34-0410-b5e6-96231b3b80d8
* Test case for PR2082.Evan Cheng2008-02-221-0/+55
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47501 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow re-materialization of pic load (controlled by -remat-pic-load for now).Evan Cheng2008-02-221-0/+45
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47476 91177308-0d34-0410-b5e6-96231b3b80d8
* copy mmx values from/to memory with GPRs on x86-32 Chris Lattner2008-02-221-2/+3
| | | | | | | | | instead of with mmx registers. This horribleness is apparently done by gcc to avoid having to insert emms in places that really should have it. This is the second half of rdar://5741668. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47474 91177308-0d34-0410-b5e6-96231b3b80d8
* Start using GPR's to copy around mmx value instead of mmx regs.Chris Lattner2008-02-221-0/+14
| | | | | | | | | | | GCC apparently does this, and code depends on not having to do emms when this happens. This is x86-64 only so far, second half should handle x86-32. rdar://5741668 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47470 91177308-0d34-0410-b5e6-96231b3b80d8
* Treat clobber operands like early clobbers: if we haveChris Lattner2008-02-211-2/+11
| | | | | | | | | | any, we force sdisel to do all regalloc for an asm. This leads to gross but correct codegen. This fixes the rest of PR2078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove llvm-upgrade and update tests.Tanya Lattner2008-02-2190-1460/+1482
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47432 91177308-0d34-0410-b5e6-96231b3b80d8
* testcase for PR1133Chris Lattner2008-02-211-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47427 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a (harmless) but where vregs were added to the used reg lists for Chris Lattner2008-02-211-0/+15
| | | | | | | | | | | | inline asms. Fix PR2078 by marking aliases of registers used when a register is marked used. This prevents EAX from being allocated when AX is listed in the clobber set for the asm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47426 91177308-0d34-0410-b5e6-96231b3b80d8
* Let invoke return aggregate value.Devang Patel2008-02-211-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47425 91177308-0d34-0410-b5e6-96231b3b80d8
* Let function call return aggregate.Devang Patel2008-02-212-1/+12
| | | | | | | Now, we have very first multiple return value testcase! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47424 91177308-0d34-0410-b5e6-96231b3b80d8
* XFAIL for now.Devang Patel2008-02-201-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47411 91177308-0d34-0410-b5e6-96231b3b80d8
* Now functions can return aggregate values.Devang Patel2008-02-201-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47409 91177308-0d34-0410-b5e6-96231b3b80d8
* Add 'umax' similar to 'smax' SCEV. Closes PR2003.Nick Lewycky2008-02-202-1/+18
| | | | | | | | | | | | | | | | Parse reversed smax and umax as smin and umin and express them with negative or binary-not SCEVs (which are really just subtract under the hood). Parse 'xor %x, -1' as (-1 - %x). Remove dead code (ConstantInt::get always returns a ConstantInt). Don't use getIntegerSCEV(-1, Ty). The first value is an int, then it gets passed into a uint64_t. Instead, create the -1 directly from ConstantInt::getAllOnesValue(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47360 91177308-0d34-0410-b5e6-96231b3b80d8
* XFAIL this for now.Evan Cheng2008-02-201-0/+1
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* this test requires sse2Chris Lattner2008-02-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47331 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't fold and's into test instructions if they have multiple uses.Chris Lattner2008-02-191-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | This compiles test-nofold.ll into: _test: movl $15, %ecx andl 4(%esp), %ecx testl %ecx, %ecx movl $42, %eax cmove %ecx, %eax ret instead of: _test: movl 4(%esp), %eax movl %eax, %ecx andl $15, %ecx testl $15, %eax movl $42, %eax cmove %ecx, %eax ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47330 91177308-0d34-0410-b5e6-96231b3b80d8
* rename tests to avoid a test- prefix when they aren't related to the test ↵Chris Lattner2008-02-1910-0/+0
| | | | | | instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47329 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove llvm-upgrade and update tests.Tanya Lattner2008-02-1951-1306/+1302
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47325 91177308-0d34-0410-b5e6-96231b3b80d8
* dead passChris Lattner2008-02-191-16/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47324 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2060 by rejecting invalid types for integer constants.Chris Lattner2008-02-191-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47311 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't spew stats to stderr.Nick Lewycky2008-02-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47308 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix up the run line for this new test.Nick Lewycky2008-02-191-1/+1
| | | | | | | llc: for the -info-output-file option: requires a value! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47306 91177308-0d34-0410-b5e6-96231b3b80d8
* New test.Evan Cheng2008-02-191-0/+219
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47302 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove llvm-upgrade and update tests.Tanya Lattner2008-02-1911-137/+118
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47297 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove llvm-upgrade and update tests.Tanya Lattner2008-02-19162-3373/+3173
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47296 91177308-0d34-0410-b5e6-96231b3b80d8
* - When DAG combiner is folding a bit convert into a BUILD_VECTOR, it should ↵Evan Cheng2008-02-181-0/+17
| | | | | | | | | check if it's essentially a SCALAR_TO_VECTOR. Avoid turning (v8i16) <10, u, u, u> to <10, 0, u, u, u, u, u, u>. Instead, simply convert it to a SCALAR_TO_VECTOR of the proper type. - X86 now normalize SCALAR_TO_VECTOR to (BIT_CONVERT (v4i32 SCALAR_TO_VECTOR)). Get rid of X86ISD::S2VEC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47290 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly fold divide-by-constant, even when faced with overflow.Nick Lewycky2008-02-182-0/+23
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* Don't mark scalar integer multiplication as Expand on x86, since x86Dan Gohman2008-02-181-0/+8
| | | | | | | | | | | | | | has plain one-result scalar integer multiplication instructions. This avoids expanding such instructions into MUL_LOHI sequences that must be special-cased at isel time, and avoids the problem with that code that provented memory operands from being folded. This fixes PR1874, addressesing the most common case. The uncommon cases of optimizing multiply-high operations will require work in DAGCombiner. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47277 91177308-0d34-0410-b5e6-96231b3b80d8
* make this just a bit more strict.Chris Lattner2008-02-181-1/+1
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* Add support to GVN for performing sret return slot optimization. This means ↵Owen Anderson2008-02-181-0/+28
| | | | | | | | | | | | that, if an sret function tail calls another sret function, it should pass its own sret parameter to the tail callee, allowing it to fill in the correct return value. llvm-gcc does not emit this by default. Instead, it allocates space in the caller for the sret of the tail call and then uses memcpy to copy the result into the caller's sret parameter. This optimization detects and optimizes that case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47265 91177308-0d34-0410-b5e6-96231b3b80d8
* optimize away stackrestore calls that have no intervening alloca or call.Chris Lattner2008-02-181-3/+40
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47258 91177308-0d34-0410-b5e6-96231b3b80d8
* upgrade this test.Chris Lattner2008-02-181-11/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47257 91177308-0d34-0410-b5e6-96231b3b80d8
* Fold (-x + -y) -> -(x+y) which promotes better association, fixingChris Lattner2008-02-171-0/+12
| | | | | | | the second half of PR2047 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47244 91177308-0d34-0410-b5e6-96231b3b80d8
* Split up subtracts into add+negate if they have a reassociable use or operandChris Lattner2008-02-171-0/+13
| | | | | | | that is also a subtract. This implements PR2047 and Transforms/Reassociate/subtest2.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47241 91177308-0d34-0410-b5e6-96231b3b80d8
* upgrade and simplify this test.Chris Lattner2008-02-171-6/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47240 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove llvm-upgrade.Tanya Lattner2008-02-1750-906/+906
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47238 91177308-0d34-0410-b5e6-96231b3b80d8
* fix this test.Chris Lattner2008-02-171-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47232 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove llvm-upgradeTanya Lattner2008-02-171-10/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47231 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove llvm-upgrade.Tanya Lattner2008-02-172-17/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47230 91177308-0d34-0410-b5e6-96231b3b80d8
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