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b8d3c93b60
On SparcV8, doubles get passed in two 32-bit integer registers. The call code was already handling endianness correctly, but the incoming argument code was not -- it got the two halves in opposite order. Also remove some dead code in LowerFormalArguments_32 to handle less-than-32bit values, which can't actually happen. Finally, add some test cases for the 32-bit calling convention, cribbed from the 64abi.ll test, and run for both big and little-endian. llvm-svn: 255668
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