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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/GlobalISel/legalize-reduce-fadd.mir
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=aarch64 -run-pass=legalizer -global-isel-abort=1 %s -o - | FileCheck %s
---
name: fadd_v2s32
tracksRegLiveness: true
body: |
bb.1:
liveins: $d0
; CHECK-LABEL: name: fadd_v2s32
; CHECK: liveins: $d0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<2 x f32>) = COPY $d0
; CHECK-NEXT: [[VECREDUCE_FADD:%[0-9]+]]:_(f32) = G_VECREDUCE_FADD [[COPY]](<2 x f32>)
; CHECK-NEXT: $w0 = COPY [[VECREDUCE_FADD]](f32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(<2 x f32>) = COPY $d0
%1:_(f32) = G_VECREDUCE_FADD %0(<2 x f32>)
$w0 = COPY %1(f32)
RET_ReallyLR implicit $w0
...
---
name: fadd_v2s64
tracksRegLiveness: true
body: |
bb.1:
liveins: $q0
; CHECK-LABEL: name: fadd_v2s64
; CHECK: liveins: $q0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<2 x f64>) = COPY $q0
; CHECK-NEXT: [[VECREDUCE_FADD:%[0-9]+]]:_(f64) = G_VECREDUCE_FADD [[COPY]](<2 x f64>)
; CHECK-NEXT: $x0 = COPY [[VECREDUCE_FADD]](f64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%0:_(<2 x f64>) = COPY $q0
%2:_(f64) = G_VECREDUCE_FADD %0(<2 x f64>)
$x0 = COPY %2(f64)
RET_ReallyLR implicit $x0
...
---
name: fadd_v8s64
alignment: 4
tracksRegLiveness: true
body: |
bb.1:
liveins: $q0, $q1, $q2, $q3
; This is a power-of-2 legalization, so use a tree reduction.
; CHECK-LABEL: name: fadd_v8s64
; CHECK: liveins: $q0, $q1, $q2, $q3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<2 x f64>) = COPY $q0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(<2 x f64>) = COPY $q1
; CHECK-NEXT: [[COPY2:%[0-9]+]]:_(<2 x f64>) = COPY $q2
; CHECK-NEXT: [[COPY3:%[0-9]+]]:_(<2 x f64>) = COPY $q3
; CHECK-NEXT: [[FADD:%[0-9]+]]:_(<2 x f64>) = G_FADD [[COPY]], [[COPY1]]
; CHECK-NEXT: [[FADD1:%[0-9]+]]:_(<2 x f64>) = G_FADD [[COPY2]], [[COPY3]]
; CHECK-NEXT: [[FADD2:%[0-9]+]]:_(<2 x f64>) = G_FADD [[FADD]], [[FADD1]]
; CHECK-NEXT: [[VECREDUCE_FADD:%[0-9]+]]:_(f64) = G_VECREDUCE_FADD [[FADD2]](<2 x f64>)
; CHECK-NEXT: $x0 = COPY [[VECREDUCE_FADD]](f64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%0:_(<2 x f64>) = COPY $q0
%1:_(<2 x f64>) = COPY $q1
%2:_(<2 x f64>) = COPY $q2
%3:_(<2 x f64>) = COPY $q3
%4:_(<4 x f64>) = G_CONCAT_VECTORS %0(<2 x f64>), %1(<2 x f64>)
%5:_(<4 x f64>) = G_CONCAT_VECTORS %2(<2 x f64>), %3(<2 x f64>)
%6:_(<8 x f64>) = G_CONCAT_VECTORS %4(<4 x f64>), %5(<4 x f64>)
%7:_(f64) = G_VECREDUCE_FADD %6(<8 x f64>)
$x0 = COPY %7(f64)
RET_ReallyLR implicit $x0
...