[LLVMbugs] [Bug 20567] New: no warning/error for bogus triple parameter value

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=20567

            Bug ID: 20567
           Summary: no warning/error for bogus triple parameter value
           Product: tools
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: llc
          Assignee: unassignedbugs at nondot.org
          Reporter: spatel+llvm at rotateright.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Using llc built from r214897...unpleasant surprise:

$ cat foo.ll
define <4 x float> @fneg4(<4 x float> %x) #0 {
  %sub = fsub <4 x float> zeroinitializer, %x
  ret <4 x float> %sub
}

$ ./llc -mtriple=x86-64 foo.ll -o -
...
    movi    v1.2d, #0000000000000000
    fsub    v0.4s, v1.4s, v0.4s
    ret

---------------------------------------------------------

That's not x86-64.

I typo'd the triple for "x86_64". It would be nicer if the tools warned on
invalid params. 

There is a warning for a bad -mcpu value sometimes...or not: bug 20557.

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