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# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
# This test ensures that the MIR parser parses and prints subregisters index
# operands correctly.
--- |
define zeroext i1 @t(i1 %c) {
entry:
ret i1 %c
}
...
---
# CHECK-LABEL: name: t
# CHECK: %0 = INSERT_SUBREG %edi, %al, {{[0-9]+}}
# CHECK: %1 = EXTRACT_SUBREG %eax, {{[0-9]+}}
# CHECK: %ax = REG_SEQUENCE %1, {{[0-9]+}}, %1, {{[0-9]+}}
name: t
isSSA: true
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
- { id: 1, class: gr8 }
body: |
bb.0.entry:
liveins: %edi, %eax
%0 = INSERT_SUBREG %edi, %al, %subreg.sub_8bit
%1 = EXTRACT_SUBREG %eax, %subreg.sub_8bit_hi
%ax = REG_SEQUENCE %1, %subreg.sub_8bit, %1, %subreg.sub_8bit_hi
RETQ %ax
...
|
