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b3b2aac5be
We previously supported the align attribute on all (pointer) parameters, but we only used it for byval parameters. However, it is completely consistent at the IR level to treat 'align n' on all pointer parameters as an alignment assumption on the pointer, and now we wll. Specifically, this causes computeKnownBits to use the align attribute on all pointer parameters, not just byval parameters. I've also added an explicit parameter attribute test for this to test/Bitcode/attributes.ll. And I've updated the LangRef to document the align parameter attribute (as it turns out, it was not documented at all previously, although the byval documentation mentioned that it could be used). There are (at least) two benefits to doing this: - It allows enhancing alignment based on the pointer alignment after inlining callees. - It allows simplification of pointer arithmetic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213670 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| .. | ||
| 2006-12-11-Cast-ConstExpr.ll | ||
| 2009-06-11-FirstClassAggregateConstant.ll | ||
| aggregateInstructions.3.2.ll | ||
| aggregateInstructions.3.2.ll.bc | ||
| arm32_neon_vcnt_upgrade.ll | ||
| atomic.ll | ||
| attributes-3.3.ll | ||
| attributes-3.3.ll.bc | ||
| attributes.ll | ||
| binaryFloatInstructions.3.2.ll | ||
| binaryFloatInstructions.3.2.ll.bc | ||
| binaryIntInstructions.3.2.ll | ||
| binaryIntInstructions.3.2.ll.bc | ||
| 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 | ||
| conversionInstructions.3.2.ll | ||
| conversionInstructions.3.2.ll.bc | ||
| deprecated-linker_private-linker_private_weak.ll | ||
| drop-debug-info.ll | ||
| extractelement.ll | ||
| flags.ll | ||
| function-encoding-rel-operands.ll | ||
| global-variables.3.2.ll | ||
| global-variables.3.2.ll.bc | ||
| inalloca.ll | ||
| invalid.ll | ||
| invalid.ll.bc | ||
| 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 | ||
| memInstructions.3.2.ll | ||
| memInstructions.3.2.ll.bc | ||
| metadata-2.ll | ||
| 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 | ||
| pr18704.ll | ||
| pr18704.ll.bc | ||
| ptest-new.ll | ||
| ptest-old.ll | ||
| select.ll | ||
| shuffle.ll | ||
| ssse3_palignr.ll | ||
| tailcall.ll | ||
| terminatorInstructions.3.2.ll | ||
| terminatorInstructions.3.2.ll.bc | ||
| upgrade-global-ctors.ll | ||
| upgrade-global-ctors.ll.bc | ||
| upgrade-loop-metadata.ll | ||
| upgrade-loop-metadata.ll.bc | ||
| upgrade-tbaa.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 | ||
| weak-cmpxchg-upgrade.ll | ||
| weak-cmpxchg-upgrade.ll.bc | ||