File: expand-condsets-phys-reg.mir

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llvm-toolchain-19 1%3A19.1.7-3
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# RUN: llc -march=hexagon -run-pass expand-condsets %s -o - | FileCheck %s
# REQUIRES: asserts

# The physical register as an operand to C2_mux caused a crash.
# Check that this compiles successfully and that the mux is expanded.

# CHECK: %2:intregs = A2_tfrt %1, $r31
# CHECK: %2:intregs = A2_tfrf killed %1, killed %0, implicit %2(tied-def 0)

name: fred
tracksRegLiveness: true
body: |
  bb.0:
    successors: %bb.1, %bb.2
    liveins: $r0

    %0:intregs = A2_tfrsi 0           ;; Multiple defs to ensure IsSSA = false
    %0:intregs = L2_loadri_io $r0, 0
    %1:predregs = C2_cmpgti %0, 10
    %2:intregs = C2_mux %1, $r31, %0
    %3:predregs = C2_cmpeqi %2, 0
    J2_jumpt %3, %bb.1, implicit-def $pc
    J2_jump %bb.2, implicit-def $pc

  bb.1:
    PS_jmpret $r31, implicit-def $pc

  bb.2:
    PS_jmpret $r31, implicit-def $pc
...