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(parent: 7a0370f) | patch
(i64 (zext (srl GR32 8))) -> movzbl AH is not safe since srl 8 only clear the top...
authorEvan Cheng <evan.cheng@apple.com>
Sat, 30 May 2009 08:43:27 +0000 (08:43 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Sat, 30 May 2009 08:43:27 +0000 (08:43 +0000)
commitcf7895ff8b507fea731ff8fd1d68cd6a06b6165b
tree5b5d6a7e4aa32c3f29faba0ed5f74eac1ae9329ctree | snapshot
parent7a0370f66ab5739f42ffe822f33494e0de9b182bcommit | diff
(i64 (zext (srl GR32 8))) -> movzbl AH is not safe since srl 8 only clear the top 8 bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72618 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86Instr64bit.td diff | blob | history
test/CodeGen/X86/2009-05-30-ISelBug.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors