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# UNSUPPORTED: reverse_iteration
# RUN: not llc -mtriple=amdgcn-- -mcpu=gfx900 -run-pass=none -o - %s 2>&1 | FileCheck %s
# Check a diagnostic is emitted if non-allocatable classes are used
# with virtual registers, and there's no assert.
# CHECK: error: {{.*}}: Cannot use non-allocatable class 'TTMP_32' for virtual register named_use in function 'virtreg_unallocatable'
# CHECK: error: {{.*}}: Cannot use non-allocatable class 'TTMP_32' for virtual register named_def in function 'virtreg_unallocatable'
# CHECK: error: {{.*}}: Cannot use non-allocatable class 'TTMP_32' for virtual register 0 in function 'virtreg_unallocatable'
# CHECK: error: {{.*}}: Cannot use non-allocatable class 'TTMP_32' for virtual register 2 in function 'virtreg_unallocatable'
# CHECK: error: {{.*}}: Cannot use non-allocatable class 'TTMP_32' for virtual register 1 in function 'virtreg_unallocatable'
---
name: virtreg_unallocatable
tracksRegLiveness: true
registers:
- { id: 0, class: ttmp_32}
body: |
bb.0:
%1:ttmp_32 = IMPLICIT_DEF
S_NOP 0, implicit %2:ttmp_32
%named_def:ttmp_32 = IMPLICIT_DEF
S_NOP 0, implicit %named_use:ttmp_32
...
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