# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64 -run-pass=aarch64-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
---
name: test_combine_sext_trunc_of_sextload
legalized: true
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x0
; CHECK-LABEL: name: test_combine_sext_trunc_of_sextload
; CHECK: liveins: $x0
; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
; CHECK: [[SEXTLOAD:%[0-9]+]]:_(s64) = G_SEXTLOAD [[COPY]](p0) :: (load (s16))
; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[SEXTLOAD]](s64)
; CHECK: $w0 = COPY [[TRUNC]](s32)
%0:_(p0) = COPY $x0
%1:_(s64) = G_SEXTLOAD %0:_(p0) :: (load (s16))
%2:_(s32) = G_TRUNC %1:_(s64)
%3:_(s32) = G_SEXT_INREG %2:_(s32), 16
$w0 = COPY %3(s32)
...
---
name: test_combine_sext_of_sextload
legalized: true
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x0
; CHECK-LABEL: name: test_combine_sext_of_sextload
; CHECK: liveins: $x0
; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
; CHECK: [[SEXTLOAD:%[0-9]+]]:_(s32) = G_SEXTLOAD [[COPY]](p0) :: (load (s16))
; CHECK: $w0 = COPY [[SEXTLOAD]](s32)
%0:_(p0) = COPY $x0
%1:_(s32) = G_SEXTLOAD %0:_(p0) :: (load (s16))
%2:_(s32) = COPY %1:_(s32)
%3:_(s32) = G_SEXT_INREG %2:_(s32), 16
$w0 = COPY %3(s32)
...
---
name: test_combine_sext_of_sextload_not_matching
legalized: true
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x0
; Here we're trying to extend from a smaller value than was extended in the load.
; CHECK-LABEL: name: test_combine_sext_of_sextload_not_matching
; CHECK: liveins: $x0
; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
; CHECK: [[SEXTLOAD:%[0-9]+]]:_(s32) = G_SEXTLOAD [[COPY]](p0) :: (load (s16))
; CHECK: $w0 = COPY [[SEXTLOAD]](s32)
%0:_(p0) = COPY $x0
%1:_(s32) = G_SEXTLOAD %0:_(p0) :: (load (s16))
%2:_(s32) = COPY %1:_(s32)
%3:_(s32) = G_SEXT_INREG %2:_(s32), 24
$w0 = COPY %3(s32)
...
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