search for: scevcodegen

...>>>> The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining >>>>>> "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. >>>>>> The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 >>>>>> and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and >>>>>> cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen with new...

...The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining > >>>>>>> "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. > >>>>>>> The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 > >>>>>>> and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and > >>>>>>> cloog 0.18.0. The attached patch eliminates this unexpected X...

The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen with newer isl/cloog. Jack -------------- nex...

I finally had time to reproduce the failure in... http://llvm.org/bugs/show_bug.cgi?id=15817 under x86_64 Fedora 15 linux and it fails the same way as under x86_64-apple-darwin*... XPASS: Polly :: Isl/CodeGen/scevcodegen-1.ll (126 of 249) ******************** TEST 'Polly :: Isl/CodeGen/scevcodegen-1.ll' FAILED ******************** Script: -- opt -load /home/howarth/llvm/build/lib/LLVMPolly.so -polly-codegen-isl -polly-codegen-scev /home/howarth/llvm/tools/polly/test/Isl/CodeGen/scevcodegen-1.ll -- Exit Code...

...>> The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining >>>>>>> "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. >>>>>>> The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 >>>>>>> and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and >>>>>>> cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen...

...k Howarth wrote: >>>> The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining >>>> "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. >>>> The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 >>>> and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and >>>> cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen with newer isl/cloog. &g...

...e attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining >>>>>>>>> "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. >>>>>>>>> The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 >>>>>>>>> and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and >>>>>>>>> cloog 0.18.0. The attached patch eliminates this unexpe...

...an Pop wrote: > Jack Howarth wrote: > > The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining > > "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. > > The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 > > and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and > > cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen with newer isl/cloog. > >...

...ote: >>>>> The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining >>>>> "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. >>>>> The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 >>>>> and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and >>>>> cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen with newer isl/c...

Jack Howarth wrote: > The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining > "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. > The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 > and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and > cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen with newer isl/cloog. > Jack &g...

...polly-code-generator=none", the execution time of huffbench would reduced to 15 secs from the original 19 secs without Polly. By investigating Polly's canonicalication passes, I find the speedup mainly comes from "createIndVarSimplifyPass()", which is controlled by the variable SCEVCodegen: if (!SCEVCodegen) PM.add(polly::createIndVarSimplifyPass()); If we remove this canonicalication pass, then there would be no performance improvement. Could anyone give me some hints why Polly needs this canonicalication pass in normal cases but refuse it in SCEVCodegen case? Is it...

...gt; Jack Howarth wrote: > > > The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining > > > "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. > > > The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 > > > and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and > > > cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen with newer isl/cloog. > &...

...nerator=none", the execution time of huffbench would reduced to 15 secs from the original 19 secs without Polly. > > > By investigating Polly's canonicalication passes, I find the speedup mainly comes from "createIndVarSimplifyPass()", which is controlled by the variable SCEVCodegen: > > > if (!SCEVCodegen) > PM.add(polly::createIndVarSimplifyPass()); > > > If we remove this canonicalication pass, then there would be no performance improvement. > > > Could anyone give me some hints why Polly needs this canonicalication pass in normal...

...> PM.add(llvm::createTailCallEliminationPass()); > > PM.add(llvm::createCFGSimplificationPass()); > > PM.add(llvm::createReassociatePass()); > > PM.add(llvm::createLoopRotatePass()); > > PM.add(llvm::createInstructionCombiningPass()); > > > > if (!SCEVCodegen) > > PM.add(polly::createIndVarSimplifyPass()); > > > > PM.add(polly::createCodePreparationPass()); > > PM.add(polly::createRegionSimplifyPass()); > > Right. > > >Sergei was saying that on some benchmarks PromoteMemoryToRegister was causing > >...

...eateTailCallEliminationPass()); >>> PM.add(llvm::createCFGSimplificationPass()); >>> PM.add(llvm::createReassociatePass()); >>> PM.add(llvm::createLoopRotatePass()); >>> PM.add(llvm::createInstructionCombiningPass()); >>> >>> if (!SCEVCodegen) >>> PM.add(polly::createIndVarSimplifyPass()); >>> >>> PM.add(polly::createCodePreparationPass()); >>> PM.add(polly::createRegionSimplifyPass()); >> >> Right. >> >>> Sergei was saying that on some benchmarks PromoteMemoryToR...

...CombiningPass()); PM.add(llvm::createCFGSimplificationPass()); PM.add(llvm::createTailCallEliminationPass()); PM.add(llvm::createCFGSimplificationPass()); PM.add(llvm::createReassociatePass()); PM.add(llvm::createLoopRotatePass()); PM.add(llvm::createInstructionCombiningPass()); if (!SCEVCodegen) PM.add(polly::createIndVarSimplifyPass()); PM.add(polly::createCodePreparationPass()); PM.add(polly::createRegionSimplifyPass()); Sergei was saying that on some benchmarks PromoteMemoryToRegister was causing performance regressions when it is run with and without Polly and scheduled tha...

...compile-time overhead (at most 30% extra compile-time). They also lead to some execution-time regressions and improvements. The only difference between SCEV canonicalization and default canonicalization is the "IndVarSimplify" pass as shown in the code RegisterPasses.cpp:212: if (!SCEVCodegen) PM.add(polly::createIndVarSimplifyPass()); However, I find it is interesting to look into the comparison between SCEV canonicalization and default canonicalization (http://188.40.87.11:8000/db_default/v4/nts/32?compare_to=33&baseline=33): First of all, we can expect SCEV canonicaliza...

...ad (at most 30% extra compile-time). They also lead to some execution-time regressions and improvements. > > > The only difference between SCEV canonicalization and default canonicalization is the "IndVarSimplify" pass as shown in the code RegisterPasses.cpp:212: > if (!SCEVCodegen) > PM.add(polly::createIndVarSimplifyPass()); There are actually more differences (see grep -R SCEVCodegen polly/), but the other differences will mainly be code generation differences. > However, I find it is interesting to look into the comparison between SCEV canonicalization a...

On 05/31/2013 06:02 AM, Jack Howarth wrote: > The attached patch eliminates http://llvm.org/bugs/show_bug.cgi?id=15817 by removing the remaining > "; XFAIL:*" added in http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130415/171812.html. > The Isl/CodeGen/scevcodegen-1.ll testcase in polly appears as an XPASS in current llvm/polly 3.3 > and trunk svn for both x86_64-apple-darwin* and x86_64 Fedora 15 when built against isl 0.11.1/2 and > cloog 0.18.0. The attached patch eliminates this unexpected XPASS seen with newer isl/cloog. > Jack H...

...FGSimplificationPass()); > PM.add(llvm::createTailCallEliminationPass()); > PM.add(llvm::createCFGSimplificationPass()); > PM.add(llvm::createReassociatePass()); > PM.add(llvm::createLoopRotatePass()); > PM.add(llvm::createInstructionCombiningPass()); > > if (!SCEVCodegen) > PM.add(polly::createIndVarSimplifyPass()); > > PM.add(polly::createCodePreparationPass()); > PM.add(polly::createRegionSimplifyPass()); Right. > Sergei was saying that on some benchmarks PromoteMemoryToRegister was causing > performance regressions when it is run w...