tree ae80ab6701d031106b8590207db307804274d6bc
parent e55d66cf1706a1b12512ffb8304058f60397b9c7
author Nirav Dave <niravd@google.com> 1547572154 +0000
committer Nirav Dave <niravd@google.com> 1547572154 +0000

[X86] Fix register class for assembly constraints to ST(7). NFCI.

Modify getRegForInlineAsmConstraint to return special singleton
register class when a constraint references ST(7) not RFP80 for which
ST(7) is not a member.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351206 91177308-0d34-0410-b5e6-96231b3b80d8