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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64 -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
name: pat1
tracksRegLiveness: true
body: |
bb.0:
liveins: $x0, $x1
; Fold ((0-A) + B) -> B - A
; CHECK-LABEL: name: pat1
; CHECK: liveins: $x0, $x1
; CHECK: %copy1:_(s64) = COPY $x0
; CHECK: %copy2:_(s64) = COPY $x1
; CHECK: %add:_(s64) = G_SUB %copy2, %copy1
; CHECK: $x0 = COPY %add(s64)
; CHECK: RET_ReallyLR implicit $x0
%copy1:_(s64) = COPY $x0
%copy2:_(s64) = COPY $x1
%zero:_(s64) = G_CONSTANT i64 0
%sub:_(s64) = G_SUB %zero, %copy1
%add:_(s64) = G_ADD %sub, %copy2
$x0 = COPY %add(s64)
RET_ReallyLR implicit $x0
...
---
name: pat2
tracksRegLiveness: true
body: |
bb.0:
liveins: $x0, $x1
; Fold (A + (0-B)) -> A - B
; CHECK-LABEL: name: pat2
; CHECK: liveins: $x0, $x1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: %copy1:_(s64) = COPY $x0
; CHECK-NEXT: %copy2:_(s64) = COPY $x1
; CHECK-NEXT: %add:_(s64) = G_SUB %copy1, %copy2
; CHECK-NEXT: $x0 = COPY %add(s64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%copy1:_(s64) = COPY $x0
%copy2:_(s64) = COPY $x1
%zero:_(s64) = G_CONSTANT i64 0
%sub:_(s64) = G_SUB %zero, %copy2
%add:_(s64) = G_ADD %copy1, %sub
$x0 = COPY %add(s64)
RET_ReallyLR implicit $x0
...
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