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# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s | FileCheck %s
# This test ensures that the MIR parser parses subregisters in register operands
# correctly.
--- |
define zeroext i1 @t(i1 %c) {
entry:
ret i1 %c
}
...
---
name: t
isSSA: true
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
- { id: 1, class: gr8 }
- { id: 2, class: gr8 }
body:
- name: entry
id: 0
instructions:
# CHECK: %0 = COPY %edi
# CHECK-NEXT: %1 = COPY %0:sub_8bit
- '%0 = COPY %edi'
- '%1 = COPY %0:sub_8bit'
- '%2 = AND8ri %1, 1, implicit-def %eflags'
- '%al = COPY %2'
- 'RETQ %al'
...
|
