overlapping-copy-bundle.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-apple-ios -run-pass=greedy -run-pass=virtregrewriter %s -o - | FileCheck %s
---
name: func0
body: |
bb.0:
; Make sure we don't clobber q3 when we expand the bundle
; CHECK-LABEL: name: func0
; CHECK: $x0 = IMPLICIT_DEF
; CHECK: $q0_q1_q2_q3 = IMPLICIT_DEF
; CHECK: $q4 = COPY $q3
; CHECK: $q1_q2_q3 = COPY $q0_q1_q2
; CHECK: ST4i64 $q1_q2_q3_q4, 0, $x0
$x0 = IMPLICIT_DEF
$q0_q1_q2_q3 = IMPLICIT_DEF
$q1_q2_q3 = COPY $q0_q1_q2 {
$q4 = COPY $q3
}
ST4i64 $q1_q2_q3_q4, 0, $x0
...
---
name: func1
body: |
bb.0:
; If it was already ordered, make sure we don't break it
; CHECK-LABEL: name: func1
; CHECK: $x0 = IMPLICIT_DEF
; CHECK: $q0_q1_q2_q3 = IMPLICIT_DEF
; CHECK: $q4 = COPY $q3
; CHECK: $q1_q2_q3 = COPY $q0_q1_q2
; CHECK: ST4i64 $q1_q2_q3_q4, 0, $x0
$x0 = IMPLICIT_DEF
$q0_q1_q2_q3 = IMPLICIT_DEF
$q4 = COPY $q3 {
$q1_q2_q3 = COPY $q0_q1_q2
}
ST4i64 $q1_q2_q3_q4, 0, $x0
...
---
name: func2
body: |
bb.0:
; A bit less realistic, but check that we handle multiple nodes
; CHECK-LABEL: name: func2
; CHECK: $x0 = IMPLICIT_DEF
; CHECK: $q0_q1_q2_q3 = IMPLICIT_DEF
; CHECK: $q3 = COPY $q2
; CHECK: $q4 = COPY $q1
; CHECK: $q1_q2 = COPY $q0_q1
; CHECK: ST4i64 $q1_q2_q3_q4, 0, $x0
$x0 = IMPLICIT_DEF
$q0_q1_q2_q3 = IMPLICIT_DEF
$q1_q2 = COPY $q0_q1 {
$q3 = COPY $q2
$q4 = COPY $q1
}
ST4i64 $q1_q2_q3_q4, 0, $x0
...
---
name: func3
body: |
bb.0:
; If there was nothing wrong, don't change the order for no reason
; CHECK-LABEL: name: func3
; CHECK: $x0 = IMPLICIT_DEF
; CHECK: $q1_q2_q3_q4 = IMPLICIT_DEF
; CHECK: $q0_q1 = COPY $q1_q2
; CHECK: $q2_q3 = COPY $q3_q4
; CHECK: ST4i64 $q0_q1_q2_q3, 0, $x0
$x0 = IMPLICIT_DEF
$q1_q2_q3_q4 = IMPLICIT_DEF
$q0_q1 = COPY $q1_q2 {
$q2_q3 = COPY $q3_q4
}
ST4i64 $q0_q1_q2_q3, 0, $x0
...