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* Address one of the original FIXMEs for the new SROA pass by implementingChandler Carruth2012-09-242-21/+161
| | | | | | | | | | | | | | | | integer promotion analogous to vector promotion. When there is an integer alloca being accessed both as its integer type and as a narrower integer type, promote the narrower access to "insert" and "extract" the smaller integer from the larger one, and make the integer alloca a candidate for promotion. In the new formulation, we don't care about target legal integer or use thresholds to control things. Instead, we only perform this promotion to an integer type which the frontend has already emitted a load or store for. This bounds the scope and prevents optimization passes from coalescing larger and larger entities into a single integer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164479 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit dtors into proper section while compiling in vcpp-compatible mode.Anton Korobeynikov2012-09-232-12/+31
| | | | | | | Patch by Kai! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164476 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch to a signed representation for the dynamic offsets while walkingChandler Carruth2012-09-232-26/+133
| | | | | | | | | | | | | | | | | | | across the uses of the alloca. It's entirely possible for negative numbers to come up here, and in some rare cases simply doing the 2's complement arithmetic isn't the correct decision. Notably, we can't zext the index of the GEP. The definition of GEP is that these offsets are sign extended or truncated to the size of the pointer, and then wrapping 2's complement arithmetic used. This patch fixes an issue that comes up with *no* input from the buildbots or bootstrap afaict. The only place where it manifested, disturbingly, is Clang's own regression test suite. A reduced and targeted collection of tests are added to cope with this. Note that I've tried to pin down the potential cases of overflow, but may have missed some cases. I've tried to add a few cases to test this, but its hard because LLVM has quite limited support for >64bit constructs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164475 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't do actual work inside an assert statement. Fixes PR11760!Nick Lewycky2012-09-234-4/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164474 91177308-0d34-0410-b5e6-96231b3b80d8
* Revise test to avoid using of 'grep'Michael Liao2012-09-231-20/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164472 91177308-0d34-0410-b5e6-96231b3b80d8
* Add LLVM_OVERRIDE to methods that override their base classes.Craig Topper2012-09-2317-66/+73
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164471 91177308-0d34-0410-b5e6-96231b3b80d8
* Enhance test case of atomic16 to verify inst encoding fixed in r164453.Michael Liao2012-09-221-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164465 91177308-0d34-0410-b5e6-96231b3b80d8
* ARMInstPrinter.cpp: Fix a warning in -Asserts. [-Wunused-variable]NAKAMURA Takumi2012-09-221-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164459 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace.NAKAMURA Takumi2012-09-221-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164458 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix edge cases of ARM shift operands in arith instructions.Tim Northover2012-09-223-38/+94
| | | | | | | | | As before with load instructions, oddities like "asr #32", "rrx" could be printed incorrectly. Patch by Chris Lidbury. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164456 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the handling of edge cases in ARM shifted operands.Tim Northover2012-09-226-8/+151
| | | | | | | | | This patch fixes load/store instructions to handle less common cases like "asr #32", "rrx" properly throughout the MC layer. Patch by Chris Lidbury. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164455 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix 16-bit atomic inst encoding and keep pseudo-inst starting with '#'Michael Liao2012-09-221-14/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164453 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in r164357Michael Liao2012-09-221-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164452 91177308-0d34-0410-b5e6-96231b3b80d8
* Machine Model (-schedmodel only). Added SchedAliases.Andrew Trick2012-09-224-88/+327
| | | | | | | Allow subtargets to tie SchedReadWrite types to processor specific sequences or variants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164451 91177308-0d34-0410-b5e6-96231b3b80d8
* Add llvm::getOrdinalSuffix to get the appropriate -st, -nd, -rd, -th suffix.Jordan Rose2012-09-221-0/+19
| | | | | | Used by clang to print parameter indexes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164440 91177308-0d34-0410-b5e6-96231b3b80d8
* Casting: assert that pointer arguments to isa<> are non-null.Jordan Rose2012-09-221-0/+3
| | | | | | | | This silences several analyzer warnings within LLVM, and provides a slightly nicer crash experience when someone calls isa<>, cast<>, or dyn_cast<> with a null pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164439 91177308-0d34-0410-b5e6-96231b3b80d8
* DenseMap: assert that we have found a bucket before we try to insert into it.Jordan Rose2012-09-221-0/+1
| | | | | | | This silences literally dozens of analyzer warnings on LLVM (since DenseMap is such a commonly-used class). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164438 91177308-0d34-0410-b5e6-96231b3b80d8
* MIPS DSP: Add immediate leaves.Akira Hatanaka2012-09-221-0/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164435 91177308-0d34-0410-b5e6-96231b3b80d8
* MIPS DSP: Add predicates and instruction template.Akira Hatanaka2012-09-221-0/+25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164434 91177308-0d34-0410-b5e6-96231b3b80d8
* Add MIPS DSP register classes. Set actions of DSP vector operations and overrideAkira Hatanaka2012-09-212-0/+49
| | | | | | | TargetLowering's callback functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164431 91177308-0d34-0410-b5e6-96231b3b80d8
* SelectionDAG node enums for MIPS DSP nodes.Akira Hatanaka2012-09-212-0/+55
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164430 91177308-0d34-0410-b5e6-96231b3b80d8
* Add MIPS accumulator and DSP control registers.Akira Hatanaka2012-09-212-1/+45
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164429 91177308-0d34-0410-b5e6-96231b3b80d8
* Add flags and feature bits for mips dsp.Akira Hatanaka2012-09-212-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164428 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a case where the new SROA pass failed to zap dead operands toChandler Carruth2012-09-212-7/+15
| | | | | | | | | | | selects with a constant condition. This resulted in the operands remaining live through the SROA rewriter. Most of the time, this just caused some dead allocas to persist and get zapped by later passes, but in one case found by Joerg, it caused a crash when we tried to *promote* the alloca despite it having this dead use. We already have the mechanisms in place to handle this, just wire select up to them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164427 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an --enable-backtraces option to configure to determineEric Christopher2012-09-214-2/+47
| | | | | | | | | whether or not we want to print out backtrace information. Useful for libraries that don't need backtrace information on a crash. rdar://11844710 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164426 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an MDBuilder utility for creating !tbaa.struct nodes.Dan Gohman2012-09-211-0/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164425 91177308-0d34-0410-b5e6-96231b3b80d8
* [CMake] Respect LLVM_BUILD_RUNTIME.Michael J. Spencer2012-09-211-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164424 91177308-0d34-0410-b5e6-96231b3b80d8
* [ms-inline asm] Expose the mnemonicIsValid() function in the AsmParser.Chad Rosier2012-09-216-2/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164420 91177308-0d34-0410-b5e6-96231b3b80d8
* Have the DbgVariable "isArtificial" and "isObjectPointer" notEric Christopher2012-09-212-5/+5
| | | | | | | | | | | | care about it being an argument variable so that we can decide that captured block and lambda vars that don't happen to be arguments could be an argument pointer. Add the object pointer for one case onto the subprogram die. rdar://12001329 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164419 91177308-0d34-0410-b5e6-96231b3b80d8
* Add comment.Chad Rosier2012-09-211-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164415 91177308-0d34-0410-b5e6-96231b3b80d8
* Add comment.Chad Rosier2012-09-211-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164414 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a significant recent(?) regression. StackSlotColoring no longer did anythingEvan Cheng2012-09-214-3/+10
| | | | | | | | | | because LiveStackAnalysis was not preserved by VirtRegWriter. This caused big stack usage regression in some cases. rdar://12340383 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164408 91177308-0d34-0410-b5e6-96231b3b80d8
* docs: Fix long-standing typo in yaml2obj.rst.Sean Silva2012-09-211-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164407 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace.Chad Rosier2012-09-211-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164406 91177308-0d34-0410-b5e6-96231b3b80d8
* Say "bytes" instead of "address units", since that's what theDan Gohman2012-09-211-5/+5
| | | | | | | rest of LangRef uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164402 91177308-0d34-0410-b5e6-96231b3b80d8
* Document the new !tbaa.struct metadata.Dan Gohman2012-09-211-0/+39
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164398 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing 'to' and rephrase an explanation of GCC's assumptions.David Blaikie2012-09-211-4/+4
| | | | | | Wordsmithing by Matt Beaumont-Gay in response to r164389. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164395 91177308-0d34-0410-b5e6-96231b3b80d8
* Document "do not use defaults in covered switch-over-enum" coding standard.David Blaikie2012-09-211-0/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164389 91177308-0d34-0410-b5e6-96231b3b80d8
* LoopIdiom: Give up when the loop is not in canonical form.Benjamin Kramer2012-09-212-0/+39
| | | | | | | | | We rely on it when doing the transforms. This can happen when there is an indirectbr in the loop. Fixes PR13892. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164383 91177308-0d34-0410-b5e6-96231b3b80d8
* [fast-isel] Fallback to SelectionDAG isel if we require strict alignment forChad Rosier2012-09-212-0/+42
| | | | | | | non-aligned i32 loads/stores. rdar://12304911 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164381 91177308-0d34-0410-b5e6-96231b3b80d8
* InstCombine: Make sure we use the pre-zext type when creating a constant of ↵Benjamin Kramer2012-09-212-1/+16
| | | | | | | | a value that is zext'd. Fixes PR13250. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164377 91177308-0d34-0410-b5e6-96231b3b80d8
* Encapsulate the "construct*AlignmentFromInt" functions.Bill Wendling2012-09-213-29/+29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164373 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo in r164357Michael Liao2012-09-211-8/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164372 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify comment.Dmitri Gribenko2012-09-211-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164371 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the 'get*AlignmentFromAttr' functions into member functions within the ↵Bill Wendling2012-09-215-29/+31
| | | | | | Attributes class. Now with fix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164370 91177308-0d34-0410-b5e6-96231b3b80d8
* BitcodeReader: Correctly insert blockaddress constant referring to a already ↵Benjamin Kramer2012-09-212-6/+37
| | | | | | | | | | | | parsed function. We inserted a placeholder that was never replaced because the function was already visited. Assert that all placeholders have been resolved when tearing down the bitcode reader. Fixes PR13895. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164369 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix SymbolRef::getAddress implementation for ELF. The 'value' field in ↵Alexey Samsonov2012-09-214-10/+39
| | | | | | symbol table entry should be treated differently for relocatable and relocated files. This patch fixes symbol addresses printed by llvm-nm for executables and shared objects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164365 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/test/CodeGen/X86/pr5145.ll: Tweak expressions to match for darwin target.NAKAMURA Takumi2012-09-211-8/+8
| | | | | | | .LBB0_1: # Linux LBB0_1: # Darwin git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164362 91177308-0d34-0410-b5e6-96231b3b80d8
* Cortex-A9 latency fixes (w/ -schedmodel only).Andrew Trick2012-09-211-5/+5
| | | | | | Quick review against the manual revealed a few obvious mistakes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164361 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing i8 max/min/umax/umin supportMichael Liao2012-09-213-10/+79
| | | | | | | | - Fix PR5145 and turn on test 8-bit atomic ops git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164358 91177308-0d34-0410-b5e6-96231b3b80d8
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