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|
# RUN: llc -march=hexagon -run-pass if-converter -o - %s | FileCheck %s
# Check that an implicit use is generated for a predicated instruction
# when a subregister of the redefined register is live.
# CHECK-LABEL: name: foo
# Verify the predicated block:
# CHECK-LABEL: bb.0:
# CHECK: liveins: %r0, %r1, %p0, %d8
# CHECK: %d8 = A2_combinew killed %r0, killed %r1
# CHECK: %d8 = L2_ploadrdf_io %p0, %r29, 0, implicit %d8
# CHECK: J2_jumprf %p0, killed %r31, implicit-def %pc, implicit-def %pc, implicit killed %d8
--- |
define void @foo() {
ret void
}
...
---
name: foo
alignment: 4
tracksRegLiveness: true
liveins:
- { reg: '%r0' }
- { reg: '%r1' }
- { reg: '%p0' }
- { reg: '%d8' }
body: |
bb.0:
successors: %bb.1, %bb.2
liveins: %r0, %r1, %p0, %d8
%d8 = A2_combinew killed %r0, killed %r1
J2_jumpf killed %p0, %bb.2, implicit-def %pc
bb.1:
liveins: %d0, %r17
%r0 = A2_tfrsi 0
%r1 = A2_tfrsi 0
A2_nop ; non-predicable
J2_jumpr killed %r31, implicit-def dead %pc, implicit killed %d0
bb.2:
; Predicate this block.
%d8 = L2_loadrd_io %r29, 0
J2_jumpr killed %r31, implicit-def dead %pc, implicit killed %d8
...
|
