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14fc08301c
This fixes a regression introduced at revision 231243. The target-independent selection algorithm in FastISel knows how to select a SINT_TO_FP if the target is SSE but not AVX. That is because on X86, the tablegen'd 'fastEmit' functions know how to select CVTSI2SSrr and CVTSI2SDrr. Method X86FastISel::X86SelectSIToFP was therefore working under the wrong assumption that the target was AVX. That assumption was incorrect since we can have a target that is neither AVX nor SSE. So, rather than asserting for the presence of AVX, we should have had an early exit from 'X86SelectSIToFP' if the target was not AVX. This patch fixes the issue replacing the invalid assertion with an early exit. Thanks to Dimitry Andric for reporting this problem and for providing a small reproducible testcase. Added test pr23273.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235295 91177308-0d34-0410-b5e6-96231b3b80d8 |
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