Sanjay Patel
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e272be7c9a
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[ValueTracking] return zero when there's conflict in known bits of a shift (PR34838)
Poison allows us to return a better result than undef.
llvm-svn: 315595
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2017-10-12 17:31:46 +00:00 |
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Evgeny Stupachenko
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d7f9c3564a
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The patch improves ValueTracking on left shift with nsw flag.
Summary:
The patch fixes PR28946.
Reviewers: majnemer, sanjoy
Differential Revision: http://reviews.llvm.org/D23296
From: Li Huang
llvm-svn: 279684
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2016-08-24 23:01:33 +00:00 |
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Sanjoy Das
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78db2963f6
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Revert "[ValueTracking] Improve ValueTracking on left shift with nsw flag"
This reverts commit r278172. It causes PR28946.
llvm-svn: 278740
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2016-08-15 21:01:31 +00:00 |
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Andrew Kaylor
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3c05edfd5e
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[ValueTracking] Improve ValueTracking on left shift with nsw flag
Patch by Li Huang
Differential Revison: https://reviews.llvm.org/D23296
llvm-svn: 278172
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2016-08-09 22:41:35 +00:00 |