Bad machine code: Illegal virtual register for instruction
function: TestULE
basic block: %bb.0 entry (0x1000a39b158)
instruction: %2:crrc = FCMPUD %1:vsfrc, %3:f8rc
operand 1: %1:vsfrc
Fix assert about missing match between fcmp instruction and register class.
We should use vsx related cmp instruction xvcmpudp instead of fcmpu when vsx is opened.
add -verifymachineinstrs option into related test cases to enable the verify pass.
Differential Revision: https://reviews.llvm.org/D55686
llvm-svn: 350685
9479f6d72e