llvm/test/CodeGen/MIR2Vec/empty-machine-function.mir

# REQUIRES: x86-registered-target
# RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=none -print-mir2vec -mir2vec-vocab-path=%S/Inputs/mir2vec_dummy_3D_vocab.json %s -o /dev/null 2>&1 | FileCheck %s
# RUN: llvm-ir2vec triplets --mode=mir %s -o /dev/null

# A function whose MIR body is absent embeds to
# the zero vector instead.

--- |
  target triple = "x86_64-unknown-linux-gnu"

  define void @no_body() { ret void }

  define void @has_body() { ret void }
...
---
name:            has_body
tracksRegLiveness: true
body:             |
  bb.0:
    RET 0
...

# The function vector is zero and there are no blocks to list.

# CHECK: MIR2Vec embeddings for machine function no_body:
# CHECK-NEXT: Machine Function vector:  [ 0.00  0.00  0.00 ]
# CHECK-NEXT: Machine basic block vectors:
# CHECK-NEXT: Machine instruction vectors:

# A function in the same module still embeds normally: RET = [1.0 1.1 1.2]
# plus the [0.1 0.1 0.1] immediate operand.

# CHECK-NEXT: MIR2Vec embeddings for machine function has_body:
# CHECK-NEXT: Machine Function vector:  [ 1.10  1.20  1.30 ]
# CHECK-NEXT: Machine basic block vectors:
# CHECK-NEXT: Machine basic block: has_body:BB0:
# CHECK-NEXT:  [ 1.10  1.20  1.30 ]