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# RUN: llc -mtriple=aarch64-linux-gnu -O0 -run-pass=legalizer -global-isel %s -o - | FileCheck %s
---
name: test_extracts_1
body: |
bb.0:
liveins: %w0
; Low part of extraction takes entirity of the low register entirely, so
; value stored is forwarded directly from first load.
; CHECK-LABEL: name: test_extracts_1
; CHECK: [[LO:%[0-9]+]](s64) = G_LOAD
; CHECK: {{%[0-9]+}}(s64) = G_LOAD
; CHECK: [[VAL:%[0-9]+]](s64) = COPY [[LO]]
; CHECK: G_STORE [[VAL]]
%0:_(s64) = COPY %x0
%1:_(s32) = COPY %w1
%2:_(p0) = COPY %x2
%3:_(s128) = G_LOAD %2(p0) :: (load 16)
%4:_(s64) = G_EXTRACT %3(s128), 0
G_STORE %4(s64), %2(p0) :: (store 8)
RET_ReallyLR
...
---
name: test_extracts_2
body: |
bb.0:
liveins: %w0
; Low extraction wipes takes whole low register. High extraction is real.
; CHECK-LABEL: name: test_extracts_2
; CHECK: [[LO_TMP:%[0-9]+]](s64) = G_LOAD
; CHECK: [[HI:%[0-9]+]](s64) = G_LOAD
; CHECK: [[LO:%[0-9]+]](s64) = COPY [[LO_TMP]]
; CHECK: [[NEWHI_TMP:%[0-9]+]](s32) = G_EXTRACT [[HI]](s64), 0
; CHECK: [[NEWHI:%[0-9]+]](s32) = COPY [[NEWHI_TMP]]
; CHECK: G_STORE [[LO]]
; CHECK: G_STORE [[NEWHI]]
%0:_(s64) = COPY %x0
%1:_(s32) = COPY %w1
%2:_(p0) = COPY %x2
%3:_(s128) = G_LOAD %2(p0) :: (load 16)
%4:_(s64) = G_EXTRACT %3(s128), 0
%5:_(s32) = G_EXTRACT %3(s128), 64
G_STORE %4(s64), %2(p0) :: (store 8)
G_STORE %5(s32), %2(p0) :: (store 4)
RET_ReallyLR
...
---
name: test_extracts_3
body: |
bb.0:
liveins: %x0, %x1, %x2
; CHECK-LABEL: name: test_extracts_3
; CHECK: [[LO:%[0-9]+]](s32) = G_EXTRACT %0(s64), 32
; CHECK: [[HI:%[0-9]+]](s32) = G_EXTRACT %1(s64), 0
; CHECK: %3(s64) = G_MERGE_VALUES [[LO]](s32), [[HI]](s32)
%0:_(s64) = COPY %x0
%1:_(s64) = COPY %x1
%2:_(s128) = G_MERGE_VALUES %0, %1
%3:_(s64) = G_EXTRACT %2, 32
RET_ReallyLR
...
---
name: test_extracts_4
body: |
bb.0:
liveins: %x0, %x1, %x2
; CHECK-LABEL: name: test_extracts_4
; CHECK: [[LO_TMP:%[0-9]+]](s32) = G_EXTRACT %0(s64), 32
; CHECK: %3(s32) = COPY [[LO_TMP]]
%0:_(s64) = COPY %x0
%1:_(s64) = COPY %x1
%2:_(s128) = G_MERGE_VALUES %0, %1
%3:_(s32) = G_EXTRACT %2, 32
RET_ReallyLR
...
|
