blob: 267bb219e1c6e8d0003ef77cd72a0466b4a533e0 [file] [log] [blame]
# RUN: llc -march=hexagon -run-pass if-converter %s -o - | FileCheck %s
# Make sure that the necessary implicit uses are added to predicated
# instructions.
# CHECK-LABEL: name: foo
--- |
define void @foo() {
ret void
name: foo
tracksRegLiveness: true
body: |
successors: %bb.1, %bb.2
liveins: %r0, %r2, %p1
J2_jumpf %p1, %bb.1, implicit-def %pc
J2_jump %bb.2, implicit-def %pc
successors: %bb.3
liveins: %r2
%r0 = A2_tfrsi 2
J2_jump %bb.3, implicit-def %pc
successors: %bb.3
liveins: %r0
; Even though r2 was not live on entry to this block, it was live across
; block bb.1 in the original diamond. After if-conversion, the diamond
; became a single block, and so r2 is now live on entry to the instructions
; originating from bb.2.
; CHECK: %r2 = C2_cmoveit %p1, 1, implicit killed %r2
%r2 = A2_tfrsi 1
liveins: %r0, %r2
%r0 = A2_add %r0, %r2
J2_jumpr %r31, implicit-def %pc