86 lines
2.5 KiB
Plaintext
86 lines
2.5 KiB
Plaintext
|
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
|
||
|
|
# RUN: llc -mtriple aarch64 -run-pass=aarch64-postlegalizer-lowering -verify-machineinstrs %s -o - | FileCheck %s
|
||
|
|
#
|
||
|
|
# Test producing a G_REV from an appropriate G_SHUFFLE_VECTOR.
|
||
|
|
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: rev64_mask_1_0
|
||
|
|
alignment: 4
|
||
|
|
legalized: true
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.1.entry:
|
||
|
|
liveins: $d0, $d1
|
||
|
|
; CHECK-LABEL: name: rev64_mask_1_0
|
||
|
|
; CHECK: liveins: $d0, $d1
|
||
|
|
; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $d0
|
||
|
|
; CHECK: [[REV64_:%[0-9]+]]:_(<2 x s32>) = G_REV64 [[COPY]]
|
||
|
|
; CHECK: $d0 = COPY [[REV64_]](<2 x s32>)
|
||
|
|
; CHECK: RET_ReallyLR implicit $d0
|
||
|
|
%0:_(<2 x s32>) = COPY $d0
|
||
|
|
%1:_(<2 x s32>) = COPY $d1
|
||
|
|
%2:_(<2 x s32>) = G_SHUFFLE_VECTOR %0(<2 x s32>), %1, shufflemask(1, 0)
|
||
|
|
$d0 = COPY %2(<2 x s32>)
|
||
|
|
RET_ReallyLR implicit $d0
|
||
|
|
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: rev64_mask_1_undef
|
||
|
|
alignment: 4
|
||
|
|
legalized: true
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.1.entry:
|
||
|
|
liveins: $d0, $d1
|
||
|
|
; CHECK-LABEL: name: rev64_mask_1_undef
|
||
|
|
; CHECK: liveins: $d0, $d1
|
||
|
|
; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $d0
|
||
|
|
; CHECK: [[REV64_:%[0-9]+]]:_(<2 x s32>) = G_REV64 [[COPY]]
|
||
|
|
; CHECK: $d0 = COPY [[REV64_]](<2 x s32>)
|
||
|
|
; CHECK: RET_ReallyLR implicit $d0
|
||
|
|
%0:_(<2 x s32>) = COPY $d0
|
||
|
|
%1:_(<2 x s32>) = COPY $d1
|
||
|
|
%2:_(<2 x s32>) = G_SHUFFLE_VECTOR %0(<2 x s32>), %1, shufflemask(1, undef)
|
||
|
|
$d0 = COPY %2(<2 x s32>)
|
||
|
|
RET_ReallyLR implicit $d0
|
||
|
|
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: no_rev64_mask_1
|
||
|
|
alignment: 4
|
||
|
|
legalized: true
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.1.entry:
|
||
|
|
liveins: $d0, $d1
|
||
|
|
|
||
|
|
; Verify that we don't produce a G_REV64 when
|
||
|
|
;
|
||
|
|
; M[i] != (i - i % BlockElts) + (BlockElts - 1 - i % BlockElts)
|
||
|
|
; In this example, BlockElts = 2
|
||
|
|
;
|
||
|
|
; At i = 1
|
||
|
|
; M[i] = 3
|
||
|
|
; i % BlockElts = i % 2 = 1
|
||
|
|
;
|
||
|
|
; So
|
||
|
|
;
|
||
|
|
; 3 != (1 - 1) + (2 - 1 - 1)
|
||
|
|
; 3 != 0
|
||
|
|
;
|
||
|
|
; And so we should not produce a G_REV64.
|
||
|
|
;
|
||
|
|
; CHECK-LABEL: name: no_rev64_mask_1
|
||
|
|
; CHECK: liveins: $d0, $d1
|
||
|
|
; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $d0
|
||
|
|
; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $d1
|
||
|
|
; CHECK: [[ZIP2_:%[0-9]+]]:_(<2 x s32>) = G_ZIP2 [[COPY]], [[COPY1]]
|
||
|
|
; CHECK: $d0 = COPY [[ZIP2_]](<2 x s32>)
|
||
|
|
; CHECK: RET_ReallyLR implicit $d0
|
||
|
|
%0:_(<2 x s32>) = COPY $d0
|
||
|
|
%1:_(<2 x s32>) = COPY $d1
|
||
|
|
%2:_(<2 x s32>) = G_SHUFFLE_VECTOR %0(<2 x s32>), %1, shufflemask(1, 3)
|
||
|
|
$d0 = COPY %2(<2 x s32>)
|
||
|
|
RET_ReallyLR implicit $d0
|