thumb-select-phi.mir
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# RUN: llc -O0 -mtriple thumb-- -mattr=+v6t2 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s
--- |
define void @test_phi_s32() { ret void }
...
---
name: test_phi_s32
# CHECK-LABEL: name: test_phi_s32
legalized: true
regBankSelected: true
selected: false
# CHECK: selected: true
tracksRegLiveness: true
registers:
- { id: 0, class: gprb }
- { id: 1, class: gprb }
- { id: 2, class: gprb }
- { id: 3, class: gprb }
- { id: 4, class: gprb }
body: |
bb.0:
; CHECK: [[BB1:bb.0]]:
successors: %bb.1(0x40000000), %bb.2(0x40000000)
liveins: $r0, $r1, $r2
%0(s32) = COPY $r0
%1(s1) = G_TRUNC %0(s32)
%2(s32) = COPY $r1
%3(s32) = COPY $r2
; CHECK: [[V1:%[0-9]+]]:gpr = COPY $r1
; CHECK: [[V2:%[0-9]+]]:gpr = COPY $r2
G_BRCOND %1(s1), %bb.1
G_BR %bb.2
bb.1:
; CHECK: [[BB2:bb.1]]:
successors: %bb.2(0x80000000)
G_BR %bb.2
; CHECK: B %bb.2
bb.2:
; CHECK: bb.2
%4(s32) = G_PHI %2(s32), %bb.0, %3(s32), %bb.1
; CHECK: {{%[0-9]+}}:gpr = PHI [[V1]], %[[BB1]], [[V2]], %[[BB2]]
$r0 = COPY %4(s32)
BX_RET 14, $noreg, implicit $r0
...