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a73e509bf8
Spiritually reapply commit r264409 (reverted in r264410), albeit with a
bit of a redesign.
Firstly, avoid splitting the big blob into multiple chunks of strings.
r264409 imposed an arbitrary limit to avoid a massive allocation on the
shared 'Record' SmallVector. The bug with that commit only reproduced
when there were more than "chunk-size" strings. A test for this would
have been useless long-term, since we're liable to adjust the chunk-size
in the future.
Thus, eliminate the motivation for chunk-ing by storing the string sizes
in the blob. Here's the layout:
vbr6: # of strings
vbr6: offset-to-blob
blob:
[vbr6]: string lengths
[char]: concatenated strings
Secondly, make the output of llvm-bcanalyzer readable.
I noticed when debugging r264409 that llvm-bcanalyzer was outputting a
massive blob all in one line. Past a small number, the strings were
impossible to split in my head, and the lines were way too long. This
version adds support in llvm-bcanalyzer for pretty-printing.
<STRINGS abbrevid=4 op0=3 op1=9/> num-strings = 3 {
'abc'
'def'
'ghi'
}
From the original commit:
Inspired by Mehdi's similar patch, http://reviews.llvm.org/D18342, this
should (a) slightly reduce bitcode size, since there is less record
overhead, and (b) greatly improve reading speed, since blobs are super
cheap to deserialize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264551 91177308-0d34-0410-b5e6-96231b3b80d8
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| .. | ||
| Inputs | ||
| 2006-12-11-Cast-ConstExpr.ll | ||
| 2009-06-11-FirstClassAggregateConstant.ll | ||
| aggregateInstructions.3.2.ll | ||
| aggregateInstructions.3.2.ll.bc | ||
| anon-functions.ll | ||
| arm32_neon_vcnt_upgrade.ll | ||
| atomic.ll | ||
| attributes-3.3.ll | ||
| attributes-3.3.ll.bc | ||
| attributes.ll | ||
| auto_upgrade_intrinsics.bc | ||
| avr-calling-conventions.ll | ||
| avr-calling-conventions.ll.bc | ||
| binaryFloatInstructions.3.2.ll | ||
| binaryFloatInstructions.3.2.ll.bc | ||
| binaryIntInstructions.3.2.ll | ||
| binaryIntInstructions.3.2.ll.bc | ||
| bitcode-wrapper-header-armv7m.ll | ||
| bitcode-wrapper-header-x86_64.ll | ||
| bitwiseInstructions.3.2.ll | ||
| bitwiseInstructions.3.2.ll.bc | ||
| blockaddress.ll | ||
| calling-conventions.3.2.ll | ||
| calling-conventions.3.2.ll.bc | ||
| case-ranges-3.3.ll | ||
| case-ranges-3.3.ll.bc | ||
| cmpxchg-upgrade.ll | ||
| cmpxchg-upgrade.ll.bc | ||
| cmpxchg.3.6.ll | ||
| cmpxchg.3.6.ll.bc | ||
| compatibility-3.6.ll | ||
| compatibility-3.6.ll.bc | ||
| compatibility-3.7.ll | ||
| compatibility-3.7.ll.bc | ||
| compatibility-3.8.ll | ||
| compatibility-3.8.ll.bc | ||
| compatibility.ll | ||
| constantsTest.3.2.ll | ||
| constantsTest.3.2.ll.bc | ||
| conversionInstructions.3.2.ll | ||
| conversionInstructions.3.2.ll.bc | ||
| debug-loc-again.ll | ||
| DICompileUnit-no-DWOId.ll | ||
| DICompileUnit-no-DWOId.ll.bc | ||
| DILocalVariable-explicit-tags.ll | ||
| DILocalVariable-explicit-tags.ll.bc | ||
| DISubprogram-distinct-definitions.ll | ||
| DISubprogram-distinct-definitions.ll.bc | ||
| drop-debug-info.3.5.ll | ||
| drop-debug-info.3.5.ll.bc | ||
| extractelement.ll | ||
| fcmp-fast.ll | ||
| flags.ll | ||
| function-encoding-rel-operands.ll | ||
| function-local-metadata.3.5.ll | ||
| function-local-metadata.3.5.ll.bc | ||
| global-variables.3.2.ll | ||
| global-variables.3.2.ll.bc | ||
| highLevelStructure.3.2.ll | ||
| highLevelStructure.3.2.ll.bc | ||
| identification.ll | ||
| inalloca.ll | ||
| invalid.ll | ||
| invalid.ll.bc | ||
| invalid.test | ||
| linkage-types-3.2.ll | ||
| linkage-types-3.2.ll.bc | ||
| local-linkage-default-visibility.3.4.ll | ||
| local-linkage-default-visibility.3.4.ll.bc | ||
| mdstring-high-bits.ll | ||
| memInstructions.3.2.ll | ||
| memInstructions.3.2.ll.bc | ||
| metadata-2.ll | ||
| metadata-strings.ll | ||
| metadata.3.5.ll | ||
| metadata.3.5.ll.bc | ||
| metadata.ll | ||
| miscInstructions.3.2.ll | ||
| miscInstructions.3.2.ll.bc | ||
| null-type.ll | ||
| null-type.ll.bc | ||
| old-aliases.ll | ||
| old-aliases.ll.bc | ||
| operand-bundles.ll | ||
| padding.test | ||
| pr18704.ll | ||
| pr18704.ll.bc | ||
| PR23310.test | ||
| ptest-new.ll | ||
| ptest-old.ll | ||
| select.ll | ||
| shuffle.ll | ||
| source-filename.test | ||
| ssse3_palignr.ll | ||
| standardCIntrinsic.3.2.ll | ||
| standardCIntrinsic.3.2.ll.bc | ||
| tailcall.ll | ||
| terminatorInstructions.3.2.ll | ||
| terminatorInstructions.3.2.ll.bc | ||
| thinlto-function-summary-callgraph-pgo.ll | ||
| thinlto-function-summary-callgraph.ll | ||
| thinlto-function-summary-refgraph.ll | ||
| thinlto-function-summary.ll | ||
| thinlto-summary-linkage-types.ll | ||
| upgrade-global-ctors.ll | ||
| upgrade-global-ctors.ll.bc | ||
| upgrade-loop-metadata.ll | ||
| upgrade-loop-metadata.ll.bc | ||
| upgrade-subprogram.ll | ||
| upgrade-subprogram.ll.bc | ||
| upgrade-tbaa.ll | ||
| use-list-order2.ll | ||
| use-list-order.ll | ||
| variableArgumentIntrinsic.3.2.ll | ||
| variableArgumentIntrinsic.3.2.ll.bc | ||
| vectorInstructions.3.2.ll | ||
| vectorInstructions.3.2.ll.bc | ||
| visibility-styles.3.2.ll | ||
| visibility-styles.3.2.ll.bc | ||
| vst-forward-declaration.ll | ||
| weak-cmpxchg-upgrade.ll | ||
| weak-cmpxchg-upgrade.ll.bc | ||
| weak-macho-3.5.ll | ||
| weak-macho-3.5.ll.bc | ||