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[GlobalISel][AArch64] Legalize vector G_SELECT
Just scalarize it, and add a test showing it works. Differential Revision: https://reviews.llvm.org/D58747 llvm-svn: 355339
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Jessica Paquette
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Mar 4, 2019
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py | ||
# RUN: llc %s -verify-machineinstrs -O0 -run-pass=legalizer -mtriple aarch64-unknown-unknown -o - | FileCheck %s | ||
... | ||
--- | ||
name: v2s64 | ||
alignment: 2 | ||
tracksRegLiveness: true | ||
body: | | ||
bb.0: | ||
liveins: $q0, $q1 | ||
; CHECK-LABEL: name: v2s64 | ||
; CHECK: liveins: $q0, $q1 | ||
; CHECK: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $q0 | ||
; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s64>) = COPY $q1 | ||
; CHECK: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0 | ||
; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[C]](s64), [[C]](s64) | ||
; CHECK: [[ICMP:%[0-9]+]]:_(<2 x s1>) = G_ICMP intpred(sgt), [[COPY]](<2 x s64>), [[BUILD_VECTOR]] | ||
; CHECK: [[UV:%[0-9]+]]:_(s1), [[UV1:%[0-9]+]]:_(s1) = G_UNMERGE_VALUES [[ICMP]](<2 x s1>) | ||
; CHECK: [[UV2:%[0-9]+]]:_(s64), [[UV3:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY1]](<2 x s64>) | ||
; CHECK: [[UV4:%[0-9]+]]:_(s64), [[UV5:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>) | ||
; CHECK: [[SELECT:%[0-9]+]]:_(s64) = G_SELECT [[UV]](s1), [[UV2]], [[UV4]] | ||
; CHECK: [[SELECT1:%[0-9]+]]:_(s64) = G_SELECT [[UV1]](s1), [[UV3]], [[UV5]] | ||
; CHECK: [[BUILD_VECTOR1:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[SELECT]](s64), [[SELECT1]](s64) | ||
; CHECK: $q0 = COPY [[BUILD_VECTOR1]](<2 x s64>) | ||
; CHECK: RET_ReallyLR implicit $q0 | ||
%0:_(<2 x s64>) = COPY $q0 | ||
%1:_(<2 x s64>) = COPY $q1 | ||
%3:_(s64) = G_CONSTANT i64 0 | ||
%2:_(<2 x s64>) = G_BUILD_VECTOR %3(s64), %3(s64) | ||
%4:_(<2 x s1>) = G_ICMP intpred(sgt), %0(<2 x s64>), %2 | ||
%5:_(<2 x s64>) = G_SELECT %4(<2 x s1>), %1, %0 | ||
$q0 = COPY %5(<2 x s64>) | ||
RET_ReallyLR implicit $q0 | ||
... | ||
--- | ||
name: v2s32 | ||
alignment: 2 | ||
tracksRegLiveness: true | ||
body: | | ||
bb.0: | ||
liveins: $d0, $d1 | ||
; CHECK-LABEL: name: v2s32 | ||
; CHECK: liveins: $d0, $d1 | ||
; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $d0 | ||
; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $d1 | ||
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0 | ||
; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[C]](s32), [[C]](s32) | ||
; CHECK: [[ICMP:%[0-9]+]]:_(<2 x s1>) = G_ICMP intpred(sgt), [[COPY]](<2 x s32>), [[BUILD_VECTOR]] | ||
; CHECK: [[UV:%[0-9]+]]:_(s1), [[UV1:%[0-9]+]]:_(s1) = G_UNMERGE_VALUES [[ICMP]](<2 x s1>) | ||
; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>) | ||
; CHECK: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>) | ||
; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[UV]](s1), [[UV2]], [[UV4]] | ||
; CHECK: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[UV1]](s1), [[UV3]], [[UV5]] | ||
; CHECK: [[BUILD_VECTOR1:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SELECT]](s32), [[SELECT1]](s32) | ||
; CHECK: $d0 = COPY [[BUILD_VECTOR1]](<2 x s32>) | ||
; CHECK: RET_ReallyLR implicit $d0 | ||
%0:_(<2 x s32>) = COPY $d0 | ||
%1:_(<2 x s32>) = COPY $d1 | ||
%3:_(s32) = G_CONSTANT i32 0 | ||
%2:_(<2 x s32>) = G_BUILD_VECTOR %3(s32), %3(s32) | ||
%4:_(<2 x s1>) = G_ICMP intpred(sgt), %0(<2 x s32>), %2 | ||
%5:_(<2 x s32>) = G_SELECT %4(<2 x s1>), %1, %0 | ||
$d0 = COPY %5(<2 x s32>) | ||
RET_ReallyLR implicit $d0 | ||
... |