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Commit Graph

Author	SHA1	Message	Date
Rafael Espindola	f716393db9	Add back r222727 with a fix. The original patch would fail when: * A dst opaque type (%A) is matched with a src type (%A). * A src opaque (%E) type is then speculatively matched with %A and the speculation fails afterward. * When rolling back the speculation we would cancel the source %A to dest %A mapping. The fix is to keep an explicit list of which resolutions are speculative. Original message: Fix overly aggressive type merging. If we find out that two types are not isomorphic, we learn nothing about opaque sub types in both the source and destination. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222923 91177308-0d34-0410-b5e6-96231b3b80d8	2014-11-28 16:41:24 +00:00
Duncan P. N. Exon Smith	eb70fd030a	Revert "Fix overly aggressive type merging." This reverts commit r222727, which causes LTO bootstrap failures. Last passing @ r222698: http://lab.llvm.org:8080/green/job/clang-Rlto_master_build/532/ First failing @ r222843: http://lab.llvm.org:8080/green/job/clang-Rlto_master_build/533/ Internal bootstraps pointed at a much narrower range: r222725 is passing, and r222731 is failing. LTO crashes while handling libclang.dylib: http://lab.llvm.org:8080/green/job/clang-Rlto_master_build/533/consoleFull#-158682280549ba4694-19c4-4d7e-bec5-911270d8a58c GEP is not of right type for indices! %InfoObj.i.i = getelementptr inbounds %"class.llvm::OnDiskIterableChainedHashTable"* %.lcssa, i64 0, i32 0, i32 4, !dbg !123627 %"class.clang::serialization::reader::ASTIdentifierLookupTrait" = type { %"class.clang::ASTReader.31859", %"class.clang::serialization::ModuleFile.31870", %"class.clang::IdentifierInfo"* }LLVM ERROR: Broken function found, compilation aborted! clang: error: linker command failed with exit code 1 (use -v to see invocation) Looks like the new algorithm doesn't merge types aggressively enough. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222895 91177308-0d34-0410-b5e6-96231b3b80d8	2014-11-27 17:01:10 +00:00
Rafael Espindola	842d2b62ed	Fix overly aggressive type merging. If we find out that two types are not isomorphic, we learn nothing about opaque sub types in both the source and destination. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222727 91177308-0d34-0410-b5e6-96231b3b80d8	2014-11-25 05:59:24 +00:00

Author

SHA1

Message

Date

Rafael Espindola

f716393db9

Add back r222727 with a fix.

The original patch would fail when:

* A dst opaque type (%A) is matched with a src type (%A).
* A src opaque (%E) type is then speculatively matched with %A and the
  speculation fails afterward.
* When rolling back the speculation we would cancel the source %A to dest
  %A mapping.

The fix is to keep an explicit list of which resolutions are speculative.

Original message:

Fix overly aggressive type merging.

If we find out that two types are *not* isomorphic, we learn nothing about
opaque sub types in both the source and destination.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222923 91177308-0d34-0410-b5e6-96231b3b80d8

2014-11-28 16:41:24 +00:00

Duncan P. N. Exon Smith

eb70fd030a

Revert "Fix overly aggressive type merging."

This reverts commit r222727, which causes LTO bootstrap failures.

Last passing @ r222698:
http://lab.llvm.org:8080/green/job/clang-Rlto_master_build/532/

First failing @ r222843:
http://lab.llvm.org:8080/green/job/clang-Rlto_master_build/533/

Internal bootstraps pointed at a much narrower range: r222725 is
passing, and r222731 is failing.

LTO crashes while handling libclang.dylib:
http://lab.llvm.org:8080/green/job/clang-Rlto_master_build/533/consoleFull#-158682280549ba4694-19c4-4d7e-bec5-911270d8a58c

    GEP is not of right type for indices!
      %InfoObj.i.i = getelementptr inbounds %"class.llvm::OnDiskIterableChainedHashTable"* %.lcssa, i64 0, i32 0, i32 4, !dbg !123627
     %"class.clang::serialization::reader::ASTIdentifierLookupTrait" = type { %"class.clang::ASTReader.31859"*, %"class.clang::serialization::ModuleFile.31870"*, %"class.clang::IdentifierInfo"* }LLVM ERROR: Broken function found, compilation aborted!
    clang: error: linker command failed with exit code 1 (use -v to see invocation)

Looks like the new algorithm doesn't merge types aggressively enough.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222895 91177308-0d34-0410-b5e6-96231b3b80d8

2014-11-27 17:01:10 +00:00

Rafael Espindola

842d2b62ed

Fix overly aggressive type merging.

If we find out that two types are *not* isomorphic, we learn nothing about
opaque sub types in both the source and destination.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222727 91177308-0d34-0410-b5e6-96231b3b80d8

2014-11-25 05:59:24 +00:00

3 Commits