[llvm-dev] LLVM Backend Issues

Jeff E via llvm-dev llvm-dev at lists.llvm.org
Tue Jun 21 09:12:01 PDT 2016


I am having issues running a new backend that I created for a new
architecture. I suspect these errors may have something to do with how I
have the string setup in LLVMTargetMachine() below?

Also - It would be great if someone could point me to a document that
describes some of these error messages? For example what does t26 ..t4 mean?

Thanks in advance for taking your valuable time to help me!


jeff at ubuntu:~/code$ llc dft_gf_msp.ll
LLVM ERROR: Cannot select: t28: ch = store<ST2[%le](align=4), trunc to i16>
t27, t26, FrameIndex:i32<14>, undef:i32
  t26: i32,ch = load<LD2[%sz](align=4), anyext from i16> t25,
FrameIndex:i32<2>, undef:i32
    t7: i32 = FrameIndex<2>
    t4: i32 = undef
  t17: i32 = FrameIndex<14>
  t4: i32 = undef
In function: main

LLVMTargetMachine(T, "e-m:e-p:32:32-i8:8:32-i16:16:32-n32-S32", TT, CPU,
FS, Options, RM, CM, OL),
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