llvm-project/llvm/test/CodeGen/AArch64/machine-outliner-side-effec...

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# RUN: llc -mtriple=aarch64 -run-pass=machine-outliner -verify-machineinstrs %s -o - | FileCheck %s
# The test checks whether the compiler updates the side effect of function @OUTLINED_FUNCTION_0 by adding the use of register x20.
--- |
declare void @spam() local_unnamed_addr
define void @baz() optsize minsize noredzone { ret void }
...
---
name: baz
tracksRegLiveness: true
body: |
bb.0:
liveins: $x0, $x20
$x0 = COPY renamable $x20
BL @spam, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit-def $sp, implicit-def $x0
renamable $x21 = COPY $x0
$x0 = COPY renamable $x20
BL @spam, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit-def $sp, implicit-def $x0
renamable $x22 = COPY $x0
$x0 = COPY killed renamable $x20
BL @spam, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit-def $sp, implicit-def $x0
renamable $x3 = COPY $x0
RET_ReallyLR
...
# CHECK: BL @OUTLINED_FUNCTION_0, {{.*}}, implicit $x20, {{.*}}