summaryrefslogtreecommitdiffstats
path: root/llvm
Commit message (Collapse)AuthorAgeFilesLines
...
* Add some stats to CodeGenPrepare to make it easier to speed it up withoutCameron Zwarich2011-01-051-3/+15
| | | | | | regressing code quality. llvm-svn: 122887
* Fix small bug in setDebugInfoAvailability.Wesley Peck2011-01-051-1/+1
| | | | llvm-svn: 122886
* UnitTests/Path: Fix typo, add error number, and enable the directory cleanup ↵Michael J. Spencer2011-01-051-7/+12
| | | | | | code. llvm-svn: 122885
* Support/PathV2: Implement remove_all.Michael J. Spencer2011-01-051-0/+37
| | | | llvm-svn: 122884
* Support/Windows/PathV2: Make directory iteration ignore . and ..Michael J. Spencer2011-01-051-4/+24
| | | | llvm-svn: 122883
* Support/Windows/PathV2: Fix remove to handle both files and directories.Michael J. Spencer2011-01-051-7/+21
| | | | llvm-svn: 122882
* Support/PathV2: Implement directory_entry::status.Michael J. Spencer2011-01-051-0/+4
| | | | llvm-svn: 122881
* UnitTests/PathV2: Setup a test fixture to make tracking created file systemMichael J. Spencer2011-01-051-0/+24
| | | | | | entities easier. llvm-svn: 122880
* Support/PathV2: Implement directory iteration on POSIX.Michael J. Spencer2011-01-052-3/+54
| | | | llvm-svn: 122879
* Use pop_back_val instead of back followed by pop_back.Cameron Zwarich2011-01-051-2/+1
| | | | llvm-svn: 122876
* Fix lit for people whose LLVM path contains 'opt', which is a common ↵Frits van Bommel2011-01-051-3/+3
| | | | | | directory name on Unix-like systems. llvm-svn: 122873
* Use a worklist for later iterations just like ordinary instsimplify. The nextCameron Zwarich2011-01-051-0/+19
| | | | | | | step is to only process instructions in subloops if they have been modified by an earlier simplification. llvm-svn: 122869
* Change LoopInstSimplify back to a LoopPass. It revisits subloops rather thanCameron Zwarich2011-01-051-10/+36
| | | | | | | | | | skipping them, but it should probably use a worklist and only revisit those instructions in subloops that have actually changed. It should probably also use a worklist after the first iteration like instsimplify now does. Regardless, it's only 0.3% of opt -O2 time on 403.gcc if it replaces the instcombine placed in the middle of the loop passes. llvm-svn: 122868
* Fix PR8906: -fno-builtin should disable loop-idiom recognition.Chris Lattner2011-01-051-3/+4
| | | | | | | | It forms memset and memcpy's, and will someday form popcount and other stuff. All of this is bad when compiling the implementation of memset, memcpy, popcount, etc. llvm-svn: 122854
* Remove TODO, these appear to be implemented.Eric Christopher2011-01-041-1/+0
| | | | llvm-svn: 122849
* Don't bother value numbering instructions with void types in GVN. In theory ↵Owen Anderson2011-01-041-0/+4
| | | | | | | | | this should allow us to insert fewer things into the value numbering maps, but any speedup is beneath the noise threshold on my machine on 403.gcc. llvm-svn: 122844
* Use the EdgeBundles analysis in X86FloatingPoint instead of recomputing CFGJakob Stoklund Olesen2011-01-042-87/+17
| | | | | | bundles in the pass. llvm-svn: 122833
* Turn the EdgeBundles class into a stand-alone machine CFG analysis pass.Jakob Stoklund Olesen2011-01-048-88/+147
| | | | | | | | | | The analysis will be needed by both the greedy register allocator and the X86FloatingPoint pass. It only needs to be computed once when the CFG doesn't change. This pass is very fast, usually showing up as 0.0% wall time. llvm-svn: 122832
* Eliminate a warning compiling with llvm-gcc. (IMO theDale Johannesen2011-01-041-1/+1
| | | | | | warning is overzealous but gcc is what it is.) llvm-svn: 122829
* Complete the NumberTable --> LeaderTable rename.Owen Anderson2011-01-041-12/+12
| | | | llvm-svn: 122828
* Fix typo in a comment.Owen Anderson2011-01-041-1/+1
| | | | llvm-svn: 122827
* Prune #include's.Owen Anderson2011-01-041-10/+0
| | | | llvm-svn: 122826
* Clarify terminology, settling on referring to what was the "number table" as ↵Owen Anderson2011-01-041-32/+32
| | | | | | | | the "leader table", and rename methods to make it much more clear what they're doing. llvm-svn: 122823
* When removing a value from GVN's leaders list, don't drop the Next pointer ↵Owen Anderson2011-01-041-1/+2
| | | | | | in a corner case. llvm-svn: 122822
* Improve the accuracy of the inlining heuristic looking for theDale Johannesen2011-01-041-9/+14
| | | | | | | | | | case where a static caller is itself inlined everywhere else, and thus may go away if it doesn't get too big due to inlining other things into it. If there are references to the caller other than calls, it will not be removed; account for this. This results in same-day completion of the case in PR8853. llvm-svn: 122821
* Branch instructions don't produce values, so there's no need to generate a ↵Owen Anderson2011-01-041-5/+3
| | | | | | | | | value number for them. This avoids adding them to the various value numbering tables, resulting in a minor (~3%) speedup for GVN on 40.gcc. llvm-svn: 122819
* Remove commented out code.Owen Anderson2011-01-041-4/+0
| | | | llvm-svn: 122817
* Give MachineFunctionAnalysis a getPassName() implementation to make timing ↵Owen Anderson2011-01-041-0/+4
| | | | | | reports prettier. llvm-svn: 122816
* Switch to the new style of asterisk placement.Cameron Zwarich2011-01-041-8/+8
| | | | llvm-svn: 122815
* fix an off-by-one bug that caused a crash analyzingChris Lattner2011-01-042-1/+38
| | | | | | ashr's with huge shift amounts, PR8896 llvm-svn: 122814
* UnitTests/Path: Produce useful diagnostics on error.Michael J. Spencer2011-01-041-17/+25
| | | | llvm-svn: 122812
* Switch to path halving from path compression for a small speedup. This alsoCameron Zwarich2011-01-041-6/+12
| | | | | | makes getLeader() nonrecursive. llvm-svn: 122811
* Include llvm-gcc dir before llvm_tools_dirTobias Grosser2011-01-041-6/+12
| | | | | | This ensures that always the recently compiled tools are picked for testing. llvm-svn: 122810
* These methods should be "const"; make them so.Duncan Sands2011-01-042-6/+6
| | | | llvm-svn: 122809
* Disable r122754 on Windows: was causing all lit tests to fail.Francois Pichet2011-01-041-1/+5
| | | | llvm-svn: 122808
* Teach loop-idiom to turn a loop containing a memset into a larger memsetChris Lattner2011-01-042-18/+102
| | | | | | | | | | | | | | | | when safe. The testcase is basically this nested loop: void foo(char *X) { for (int i = 0; i != 100; ++i) for (int j = 0; j != 100; ++j) X[j+i*100] = 0; } which gets turned into a single memset now. clang -O3 doesn't optimize this yet though due to a phase ordering issue I haven't analyzed yet. llvm-svn: 122806
* restructure this a bit. Initialize the WeakVH with "I", theChris Lattner2011-01-041-11/+14
| | | | | | | | instruction *after* the store. The store will always be deleted if the transformation kicks in, so we'd do an N^2 scan of every loop block. Whoops. llvm-svn: 122805
* Eliminate repeated allocation of a per-BB DenseMap for a 4.6% reduction of timeCameron Zwarich2011-01-041-6/+5
| | | | | | spent in StrongPHIElimination on 403.gcc. llvm-svn: 122803
* Avoid finding loop back edges when we are not splitting critical edges inCameron Zwarich2011-01-041-2/+4
| | | | | | CodeGenPrepare (which is the default behavior). llvm-svn: 122801
* Don't pattern match "/clang" so we don't mangle directory names. SomeDavid Greene2011-01-041-1/+2
| | | | | | tests use absolute paths to clang. llvm-svn: 122796
* Clean up a funky pass registration that got passed over when I got rid of ↵Owen Anderson2011-01-041-7/+1
| | | | | | static constructors. llvm-svn: 122795
* Fix the ARM IIC_iCMPsi itinerary and add an important assert.Andrew Trick2011-01-042-1/+3
| | | | llvm-svn: 122794
* Address most of Duncan's review comments. Also, make LoopInstSimplify a simpleCameron Zwarich2011-01-041-37/+15
| | | | | | | | | | | | FunctionPass. It probably doesn't have a reason to be a LoopPass, as it will probably drop the simple fixed point and either use RPO iteration or Duncan's approach in instsimplify of only revisiting instructions that have changed. The next step is to preserve LoopSimplify. This looks like it won't be too hard, although the pass manager doesn't actually seem to respect when non-loop passes claim to preserve LCSSA or LoopSimplify. This will have to be fixed. llvm-svn: 122791
* use the very-handy getTruncateOrZeroExtend helper function, andChris Lattner2011-01-041-14/+6
| | | | | | | stop setting NSW: signed overflow is possible. Thanks to Dan for pointing these out. llvm-svn: 122790
* Formatting changes. No functionality change.Bill Wendling2011-01-031-80/+77
| | | | llvm-svn: 122789
* Fix comment.Owen Anderson2011-01-031-1/+1
| | | | llvm-svn: 122788
* Use the new addEscapingValue callback to update GlobalsModRef when GVN adds ↵Owen Anderson2011-01-033-2/+31
| | | | | | | | PHIs of GEPs. For the moment, have GlobalsModRef handle this conservatively by simply removing the value from its maps. llvm-svn: 122787
* Convert MC tests to .s so codegen changes won't break them.Evan Cheng2011-01-035-127/+184
| | | | llvm-svn: 122786
* Duncan deftly points out that readnone functions aren'tChris Lattner2011-01-032-1/+18
| | | | | | | invalidated by stores, so they can be handled as 'simple' operations. llvm-svn: 122785
* Use pushq / popq instead of subq $8, %rsp / addq $8, %rsp to adjust stack inEvan Cheng2011-01-039-181/+258
| | | | | | | | | | | prologue and epilogue if the adjustment is 8. Similarly, use pushl / popl if the adjustment is 4 in 32-bit mode. In the epilogue, takes care to pop to a caller-saved register that's not live at the exit (either return or tailcall instruction). rdar://8771137 llvm-svn: 122783
OpenPOWER on IntegriCloud