tree e5637bfe175694dff0bad9a57426bf9c37fc0a0e
parent 26652ec5190f9a3f954b6159f3bb1ebcb8336ab9
author Zi Xuan Wu <wuzish@cn.ibm.com> 1547001070 +0000
committer Zi Xuan Wu <wuzish@cn.ibm.com> 1547001070 +0000

[PowerPC] Fix assert from machine verify pass that unmatched register class about fcmp selection in fast-isel

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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350685 91177308-0d34-0410-b5e6-96231b3b80d8