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* Add testcase for the previous commit.Rafael Espindola2012-02-261-0/+25
| | | | llvm-svn: 151475
* Don't call dominates on unreachable instructions. Should fix the dragoneggRafael Espindola2012-02-261-2/+6
| | | | | | build. Testcase is still reducing. llvm-svn: 151474
* Default TargetData alignment information for 128-bit floating-point types.Hal Finkel2012-02-261-0/+1
| | | | llvm-svn: 151473
* And update the comment...Rafael Espindola2012-02-261-1/+0
| | | | llvm-svn: 151472
* Enable the assert that got all this dominator work started.Rafael Espindola2012-02-261-1/+1
| | | | llvm-svn: 151471
* Use the DT dominates function in the verifier.Rafael Espindola2012-02-261-72/+55
| | | | llvm-svn: 151470
* Change the implementation of dominates(inst, inst) to one based on what theRafael Espindola2012-02-265-32/+156
| | | | | | | | verifier does. This correctly handles invoke. Thanks to Duncan, Andrew and Chris for the comments. Thanks to Joerg for the early testing. llvm-svn: 151469
* Don't call dominates on unreachable instructions.Rafael Espindola2012-02-261-2/+2
| | | | llvm-svn: 151468
* Reinstate the optimization from r151449 with a fix to not turn 'gep %x' intoNick Lewycky2012-02-263-14/+115
| | | | | | 'gep null' when the icmp predicate is unsigned (or is signed without inbounds). llvm-svn: 151467
* Don't call dominates on unreachable instructions.Rafael Espindola2012-02-262-2/+3
| | | | llvm-svn: 151466
* Roll these back to r151448 until I figure out how they're breakingNick Lewycky2012-02-253-97/+13
| | | | | | MultiSource/Applications/lua. llvm-svn: 151463
* An argument and a local identified object (eg. a noalias call) could turn outNick Lewycky2012-02-252-26/+37
| | | | | | | equal if both are null. In the test, scope type %t and global @y by adding a 'gep' prefix to them. llvm-svn: 151452
* Fix five-letter typo in comment.Nick Lewycky2012-02-251-1/+1
| | | | llvm-svn: 151450
* Teach instsimplify to be more aggressive when analyzing comparisons of pointersNick Lewycky2012-02-253-13/+86
| | | | | | | by using llvm::isIdentifiedObject. Also teach it to handle GEPs that have the same base pointer and constant operands. Fixes PR11238! llvm-svn: 151449
* Move isKnownNonNull from private implementation detail of BasicAA to a publicNick Lewycky2012-02-253-16/+21
| | | | | | function that others can use, next to llvm::isIdentifiedObject. llvm-svn: 151446
* Remove spurious emacs mode marker.Nick Lewycky2012-02-251-1/+1
| | | | llvm-svn: 151440
* Revert r151278, breaks static linking.Hal Finkel2012-02-252-17/+8
| | | | | | | | | Reverting this because it breaks static linking on ppc64. Specifically, it may be linkonce_odr functions that are the problem. With this patch, if you link statically, calls to some functions end up calling their descriptor addresses instead of calling to their entry points. This causes the execution to fail with SIGILL (b/c the descriptor address just has some pointers, not code). llvm-svn: 151433
* Target/X86: Fix assertion failures and warnings caused by r151382 _ftol2 ↵NAKAMURA Takumi2012-02-254-12/+34
| | | | | | | | | | | | lowering for i386-*-win32 targets. Patch by Joe Groff. [Joe Groff] Hi everyone. My previous patch applied as r151382 had a few problems: Clang raised a warning, and X86 LowerOperation would assert out for fptoui f64 to i32 because it improperly lowered to an illegal BUILD_PAIR. Here's a patch that addresses these issues. Let me know if any other changes are necessary. Thanks. llvm-svn: 151432
* Add comment.Chad Rosier2012-02-252-2/+3
| | | | llvm-svn: 151431
* Add support for disabling llvm.lifetime intrinsics in the AlwaysInliner. TheseChad Rosier2012-02-257-18/+31
| | | | | | | | are optimization hints, but at -O0 we're not optimizing. This becomes a problem when the alwaysinline attribute is abused. rdar://10921594 llvm-svn: 151429
* Make the peephole optimizer clear kill flags on a vreg if it's about to add newLang Hames2012-02-251-0/+4
| | | | | | | | | uses of the vreg, since the old kills may no longer be valid. This was causing -verify-machineinstrs to complain about uses after kills, and could potentially have been causing subtle register allocation issues, but I haven't come across a test case yet. llvm-svn: 151425
* Fix indentation.Chad Rosier2012-02-251-2/+1
| | | | llvm-svn: 151420
* Grammar-o.Eric Christopher2012-02-251-1/+1
| | | | llvm-svn: 151418
* Fixed typo.Lang Hames2012-02-251-1/+1
| | | | llvm-svn: 151417
* Add definitions of floating point multiply add/sub and negative multiplyAkira Hatanaka2012-02-254-8/+159
| | | | | | add/sub instructions. llvm-svn: 151415
* Add an option to use a virtual register as the global base register instead ofAkira Hatanaka2012-02-2418-99/+276
| | | | | | | | | | | | | | | | | | | | | | | | | reserving a physical register ($gp or $28) for that purpose. This will completely eliminate loads that restore the value of $gp after every function call, if the register allocator assigns a callee-saved register, or eliminate unnecessary loads if it assigns a temporary register. example: .cpload $25 // set $gp. ... .cprestore 16 // store $gp to stack slot 16($sp). ... jalr $25 // function call. clobbers $gp. lw $gp, 16($sp) // not emitted if callee-saved reg is chosen. ... lw $2, 4($gp) ... jalr $25 // function call. lw $gp, 16($sp) // not emitted if $gp is not live after this instruction. ... llvm-svn: 151402
* Remove unused cl::opt, make another opt static.Benjamin Kramer2012-02-242-4/+1
| | | | llvm-svn: 151398
* Add missing staticJakob Stoklund Olesen2012-02-241-3/+3
| | | | llvm-svn: 151396
* Fix undefined behavior.Ahmed Charles2012-02-241-1/+1
| | | | llvm-svn: 151385
* Thumb2 asm aliases for wide bitwise w/ immediate instructions.Jim Grosbach2012-02-241-0/+9
| | | | llvm-svn: 151384
* fix PR12075, a regression in a recent transform I added. In unreachable ↵Chris Lattner2012-02-242-4/+28
| | | | | | code, gep chains can be infinite. Just like "stripPointerCasts", use a set to keep track of visited instructions so we don't recurse infinitely. llvm-svn: 151383
* Add WIN_FTOL_* psudo-instructions to model the unique calling conventionMichael J. Spencer2012-02-246-32/+261
| | | | | | used by the Win32 _ftol2 runtime function. Patch by Joe Groff! llvm-svn: 151382
* Add a -stress-regalloc=<N> option.Jakob Stoklund Olesen2012-02-241-1/+9
| | | | | | | This will limit all register classes to N registers in order to stress test register allocation. llvm-svn: 151379
* X11/X2 loads around indirect calls on ppc64 should not be deleted.Hal Finkel2012-02-242-2/+8
| | | | llvm-svn: 151374
* Don't crash when a glue node contains an internal CopyToRegHal Finkel2012-02-242-0/+15
| | | | | | | This is necessary to support the existing ppc lowering code for indirect calls. Fixes PR12071. llvm-svn: 151373
* Teach GVN that x+y is the same as y+x and that x<y is the same as y>x.Duncan Sands2012-02-242-1/+39
| | | | llvm-svn: 151365
* SDAGBuilder: Remove register sets that were never read and prune dead code ↵Benjamin Kramer2012-02-241-63/+3
| | | | | | surrounding it. llvm-svn: 151364
* test commit. removing unnecessary whitespace.Kristof Beyls2012-02-241-1/+1
| | | | llvm-svn: 151363
* test/CodeGen/X86/2012-02-23-mmx-inlineasm.ll: Fixup to add -march=x86.NAKAMURA Takumi2012-02-241-1/+1
| | | | | | -mcpu does not choose arch automatically, on non-x86 hosts. llvm-svn: 151362
* Remove dead code.Richard Osborne2012-02-241-3/+1
| | | | | | Patch by Ahmed Charles llvm-svn: 151360
* Workaround a miscompilation by gcc-4.3 that showed up as a failureDuncan Sands2012-02-241-1/+1
| | | | | | of the StringRef.Split2 unittest on 32 bit machines. llvm-svn: 151358
* ScheduleDAGInstrs.h:155: warning: suggest parentheses around `&&' within `||'.Nick Lewycky2012-02-241-1/+1
| | | | llvm-svn: 151355
* PostRA sched: speed up physreg tracking by not abusing SparseSet.Andrew Trick2012-02-242-35/+80
| | | | llvm-svn: 151348
* ARM Thumb symbol references in assembly need the low bit set.Jim Grosbach2012-02-241-0/+5
| | | | | | | | | Add support for a missed case when the symbols in a difference expression are in the same section but not the same fragment. rdar://10924681 llvm-svn: 151345
* Turn avx insert intrinsic calls into INSERT_SUBVECTOR DAG nodes and remove ↵Pete Cooper2012-02-243-9/+63
| | | | | | duplicate patterns for selecting the intrinsics llvm-svn: 151342
* comment fixJia Liu2012-02-241-1/+1
| | | | llvm-svn: 151341
* some comment fixJia Liu2012-02-241-3/+3
| | | | llvm-svn: 151340
* comment fixJia Liu2012-02-241-1/+1
| | | | llvm-svn: 151339
* replace a balnk with -Jia Liu2012-02-241-1/+1
| | | | llvm-svn: 151337
* If the Address of a variable is an argument then treat the entireEric Christopher2012-02-242-3/+134
| | | | | | | | | | | variable declaration as an argument because we want that address anyhow for our debug information. This seems to fix rdar://9965111, at least we have more debug information than before and from reading the assembly it appears to be the correct location. llvm-svn: 151335
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