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* Fix a bug in IVUsers which was permitting non-affine addrecs toDan Gohman2010-04-091-0/+69
| | | | | | | be sent to LSR, which it isn't prepared to handle. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100839 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a SCCP miscompilation that could happen when aChris Lattner2010-04-091-0/+95
| | | | | | | | | | forced constant is changed to a constant, we would end up adding the instruction to the wrong worklist, preventing it from being properly revisited. This fixes rdar://7832370 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100837 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a few more lint checks.Dan Gohman2010-04-081-0/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100825 91177308-0d34-0410-b5e6-96231b3b80d8
* Coalescer should not delete copy instructions whose defs are partially dead. ↵Evan Cheng2010-04-081-0/+26
| | | | | | | | | e.g. %RDI<def,dead> = MOV64rr %RAX<kill>, %EDI<imp-def> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100804 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a -lint pass which checks for common sources of undefined or likelyDan Gohman2010-04-081-0/+31
| | | | | | | unintended behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100798 91177308-0d34-0410-b5e6-96231b3b80d8
* Pointers to zero-sized objects don't point to overlapping objects.Dan Gohman2010-04-081-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100789 91177308-0d34-0410-b5e6-96231b3b80d8
* Print empty structs as {} rather than { }.Dan Gohman2010-04-083-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100787 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid using f64 to lower memcpy from constant string. It's cheaper to use ↵Evan Cheng2010-04-082-12/+55
| | | | | | i32 store of immediates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100751 91177308-0d34-0410-b5e6-96231b3b80d8
* When expanding expressions which are using post-inc mode for multiple loops,Dan Gohman2010-04-081-0/+27
| | | | | | | ensure that the expansion is dominated by the increments of those loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100748 91177308-0d34-0410-b5e6-96231b3b80d8
* add newlines at the end of files.Chris Lattner2010-04-0733-33/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100705 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize IVUsers to track arbitrary expressions rather than expressionsDan Gohman2010-04-072-1/+278
| | | | | | | | | | | | | | | | explicitly split into stride-and-offset pairs. Also, add the ability to track multiple post-increment loops on the same expression. This refines the concept of "normalizing" SCEV expressions used for to post-increment uses, and introduces a dedicated utility routine for normalizing and denormalizing expressions. This fixes the expansion of expressions which are post-increment users of more than one loop at a time. More broadly, this takes LSR another step closer to being able to reason about more than one loop at a time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100699 91177308-0d34-0410-b5e6-96231b3b80d8
* unXFAIL, arm disassembler was reenabled.Benjamin Kramer2010-04-073-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100692 91177308-0d34-0410-b5e6-96231b3b80d8
* Split big test into multiple directories to cater toDale Johannesen2010-04-0712-11/+363
| | | | | | | | those who don't build all targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100688 91177308-0d34-0410-b5e6-96231b3b80d8
* Test that DEBUG_VALUE comments come out on a variety of targets.Dale Johannesen2010-04-071-0/+45
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100682 91177308-0d34-0410-b5e6-96231b3b80d8
* this has a pr!Chris Lattner2010-04-071-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100637 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a latent bug my inline asm stuff exposed: Chris Lattner2010-04-071-0/+16
| | | | | | | MachineOperand::isIdenticalTo wasn't handling metadata operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100636 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove XFAIL for vg_leak as the leaks are fixed by 100601.Sanjiv Gupta2010-04-071-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100612 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not emit specification DIE with DW_AT_specification attribute for member ↵Devang Patel2010-04-061-0/+89
| | | | | | functions of a funcation local class. This trips gdb's partial scan of DIEs at load time. Fixes Radar 7833483. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100586 91177308-0d34-0410-b5e6-96231b3b80d8
* Let that which does not matter truly slide.Jakob Stoklund Olesen2010-04-061-2/+2
| | | | | | | This test only cares about alignment, so don't test for other cruft. An upcoming llvm-gcc patch needs this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100584 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverting 100530 & 100531 due to regressions in the GDB test suite.Stuart Hastings2010-04-061-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100563 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't try to collapse DomainValues onto an incompatible SSE domain.Jakob Stoklund Olesen2010-04-061-0/+130
| | | | | | This fixes the Bullet regression on i386/nocona. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100553 91177308-0d34-0410-b5e6-96231b3b80d8
* Revise debug info machinery to digest nested functions and classes.Stuart Hastings2010-04-061-1/+3
| | | | | | | | | | | A certain GDB testsuite case (local.cc) has a function nested inside a class nested inside another function. GCC presents the innermost function to llvm-convert first. Heretofore, the debug info mistakenly placed the inner function at module scope. This patch walks the GCC context links and instantiates the outer class and function so the debug info is properly nested. Radar 7426545. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100530 91177308-0d34-0410-b5e6-96231b3b80d8
* Add nounwind.Evan Cheng2010-04-051-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100482 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't do code sinking on unreachable blocks. It's unprofitable and hazardous.Dan Gohman2010-04-051-0/+30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100455 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverting 100265 to try to get buildbots green again. Lots of self-hosting ↵Evan Cheng2010-04-053-0/+3
| | | | | | buildbots started complaining since this commit. Also xfail ARM disassembly tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100378 91177308-0d34-0410-b5e6-96231b3b80d8
* resolve a fixme.Chris Lattner2010-04-041-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100346 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply address space patch after fixing an issue in MemCopyOptimizer.Mon P Wang2010-04-047-8/+10
| | | | | | | | Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8
* add integer overflow check for the fp induction variable Chris Lattner2010-04-031-4/+4
| | | | | | | | | | | | | checker. Amusingly, we already had tests that we should have rejects because they would be miscompiled in the testsuite. The remaining issue with this is that we don't check that the branch causes us to exit the loop if it fails, so we don't actually know if we remain in bounds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100284 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR6761, a miscompilation due to the fp->int IV conversionChris Lattner2010-04-031-4/+23
| | | | | | | stuff. More bugs remain though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100282 91177308-0d34-0410-b5e6-96231b3b80d8
* convert to filecheckChris Lattner2010-04-031-5/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100281 91177308-0d34-0410-b5e6-96231b3b80d8
* rename feature test.Chris Lattner2010-04-031-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100279 91177308-0d34-0410-b5e6-96231b3b80d8
* actually just remove this, will move the real feature test here.Chris Lattner2010-04-031-35/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100278 91177308-0d34-0410-b5e6-96231b3b80d8
* rename test since it is a feature test.Chris Lattner2010-04-031-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100277 91177308-0d34-0410-b5e6-96231b3b80d8
* first half of a pass through IndVarSimplify::HandleFloatingPointIV,Chris Lattner2010-04-031-0/+19
| | | | | | | | | this cleans up a bunch of code and also fixes several crashes and miscompiles. More to come unfortunately, this optimization is quite broken. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100270 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert all my SSAUpdater patches. The PHI placement algorithm is not correctBob Wilson2010-04-031-46/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (what was I thinking?) and there's also a problem with LCSSA. I'll try again later with fixes. --- Reverse-merging r100263 into '.': U lib/Transforms/Utils/SSAUpdater.cpp --- Reverse-merging r100177 into '.': G lib/Transforms/Utils/SSAUpdater.cpp --- Reverse-merging r100148 into '.': G lib/Transforms/Utils/SSAUpdater.cpp --- Reverse-merging r100147 into '.': U include/llvm/Transforms/Utils/SSAUpdater.h G lib/Transforms/Utils/SSAUpdater.cpp --- Reverse-merging r100131 into '.': G include/llvm/Transforms/Utils/SSAUpdater.h G lib/Transforms/Utils/SSAUpdater.cpp --- Reverse-merging r100130 into '.': G lib/Transforms/Utils/SSAUpdater.cpp --- Reverse-merging r100126 into '.': G include/llvm/Transforms/Utils/SSAUpdater.h G lib/Transforms/Utils/SSAUpdater.cpp --- Reverse-merging r100050 into '.': D test/Transforms/GVN/2010-03-31-RedundantPHIs.ll --- Reverse-merging r100047 into '.': G include/llvm/Transforms/Utils/SSAUpdater.h G lib/Transforms/Utils/SSAUpdater.cpp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100264 91177308-0d34-0410-b5e6-96231b3b80d8
* Second try of initial ARM/Thumb disassembler check-in. It consists of a tablgenJohnny Chen2010-04-023-0/+184
| | | | | | | | | | | backend (ARMDecoderEmitter) which emits the decoder functions for ARM and Thumb, and the disassembler core which invokes the decoder function and builds up the MCInst based on the decoded Opcode. Reviewed by Chris Latter and Bob Wilson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100233 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly lower memset / memcpy of undef. It should be a nop. PR6767.Evan Cheng2010-04-022-5/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100208 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r100191 since it breaks objc in clang Mon P Wang2010-04-027-10/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100199 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply address space patch after fixing an issue in MemCopyOptimizer.Mon P Wang2010-04-027-8/+10
| | | | | | | | Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100191 91177308-0d34-0410-b5e6-96231b3b80d8
* Manually notify ScalarEvolution before making an operand replacement, sinceDan Gohman2010-04-021-0/+41
| | | | | | | it can't currently observe such changes automatically. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100186 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert the recent alignment changes. They're broken for -Os because,Dan Gohman2010-04-023-8/+2
| | | | | | | | in particular, they end up aligning strings at 16-byte boundaries, and there's no way for GlobalOpt to check OptForSize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100172 91177308-0d34-0410-b5e6-96231b3b80d8
* After trivial coalescing, the MI being visited may have become a copy. Avoid ↵Evan Cheng2010-04-021-0/+70
| | | | | | | | | adding it to CSE hash table since copies aren't being considered for CSE and they may be deleted. rdar://7819990 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100170 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove this initializer so that the optimizer doesn't convertDan Gohman2010-04-021-1/+1
| | | | | | | unaligned loads into aligned loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100166 91177308-0d34-0410-b5e6-96231b3b80d8
* Update this test for the new preferred alignment heuristics.Dan Gohman2010-04-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100165 91177308-0d34-0410-b5e6-96231b3b80d8
* Make globalopt refine global variable alignment.Dan Gohman2010-04-021-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100160 91177308-0d34-0410-b5e6-96231b3b80d8
* In 64-bit mode, use i64 to lower memcpy / memset instead of f64.Evan Cheng2010-04-012-9/+25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100137 91177308-0d34-0410-b5e6-96231b3b80d8
* - Avoid using floating point stores to implement memset unless the value is ↵Evan Cheng2010-04-011-2/+10
| | | | | | | | | zero. - Do not try to infer GV alignment unless its type is sized. It's not possible to infer alignment if it has opaque type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100118 91177308-0d34-0410-b5e6-96231b3b80d8
* Add -mcpu to memcpy / memset tests to ensure they behave the same on all ↵Evan Cheng2010-04-013-9/+8
| | | | | | hosts / targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100101 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix sdisel memcpy, memset, memmove lowering:Evan Cheng2010-04-017-56/+130
| | | | | | | | | | | | | | 1. Makes it possible to lower with floating point loads and stores. 2. Avoid unaligned loads / stores unless it's fast. 3. Fix some memcpy lowering logic bug related to when to optimize a load from constant string into a constant. 4. Adjust x86 memcpy lowering threshold to make it more sane. 5. Fix x86 target hook so it uses vector and floating point memory ops more effectively. rdar://7774704 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100090 91177308-0d34-0410-b5e6-96231b3b80d8
* change this from using '!dbg' to using '!dbgx'. TheChris Lattner2010-04-011-4/+4
| | | | | | | MD used here isn't valid for !dbg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100085 91177308-0d34-0410-b5e6-96231b3b80d8
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