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Commit Graph

Author	SHA1	Message	Date
Dan Gohman	b1e1e82c54	Change these tests to feed the assembly files to opt directly, instead of using llvm-as, now that opt supports this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8	2009-09-08 16:50:01 +00:00
Dan Gohman	eee962e1ce	Teach InstCombine's ComputeMaskedBits to handle pointer expressions in addition to integer expressions. Rewrite GetOrEnforceKnownAlignment as a ComputeMaskedBits problem, moving all of its special alignment knowledge to ComputeMaskedBits as low-zero-bits knowledge. Also, teach ComputeMaskedBits a few basic things about Mul and PHI instructions. This improves ComputeMaskedBits-based simplifications in a few cases, but more noticeably it significantly improves instcombine's alignment detection for loads, stores, and memory intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49492 91177308-0d34-0410-b5e6-96231b3b80d8	2008-04-10 18:43:06 +00:00

Author

SHA1

Message

Date

Dan Gohman

b1e1e82c54

Change these tests to feed the assembly files to opt directly, instead

of using llvm-as, now that opt supports this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8

2009-09-08 16:50:01 +00:00

Dan Gohman

eee962e1ce

Teach InstCombine's ComputeMaskedBits to handle pointer expressions

in addition to integer expressions. Rewrite GetOrEnforceKnownAlignment
as a ComputeMaskedBits problem, moving all of its special alignment
knowledge to ComputeMaskedBits as low-zero-bits knowledge.

Also, teach ComputeMaskedBits a few basic things about Mul and PHI
instructions.

This improves ComputeMaskedBits-based simplifications in a few cases,
but more noticeably it significantly improves instcombine's alignment
detection for loads, stores, and memory intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49492 91177308-0d34-0410-b5e6-96231b3b80d8

2008-04-10 18:43:06 +00:00

2 Commits