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Switch lowering: fix assert in buildBitTests (PR23738)
authorHans Wennborg <hans@hanshq.net>
Thu, 4 Jun 2015 15:55:00 +0000 (15:55 +0000)
committerHans Wennborg <hans@hanshq.net>
Thu, 4 Jun 2015 15:55:00 +0000 (15:55 +0000)
commitd92291568586e13b1484cd720f6faf939f0b2623
tree99b8475e94455adc5fc6c8a9a16b2fa310101af3tree | snapshot
parentc0aeadf92d8f8354f6e6f8f9a164f7bfbb106247commit | diff
Switch lowering: fix assert in buildBitTests (PR23738)

When checking (High - Low + 1).sle(BitWidth), BitWidth would be truncated
to the size of the left-hand side. In the case of this PR, the left-hand
side was i4, so BitWidth=64 got truncated to 0 and the assert failed.

llvm-svn: 239048
llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp diff | blob | history
llvm/test/CodeGen/X86/switch.ll diff | blob | history
Domain: System / Toolchain;