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| # RUN: llc -mtriple=s390x-ibm-linux -systemz-subreg-liveness -verify-machineinstrs -start-before=simple-register-coalescing -o - %s | FileCheck %s
# Check for successful compilation.
# CHECK: lhi %r0, 0
--- |
target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
target triple = "s390x-ibm-linux"
@g_105 = external dso_local global i8, align 2
@g_149 = external dso_local unnamed_addr global i8, align 2
define void @main() #0 {
ret void
}
attributes #0 = { nounwind "target-cpu"="z13" "target-features"="+transactional-execution,+vector" }
...
---
name: main
alignment: 16
tracksRegLiveness: true
body: |
bb.0:
%8:grx32bit = LHIMux 0
%9:gr64bit = LGHI 0
%17:addr64bit = LARL @g_105
%19:grx32bit = IMPLICIT_DEF
%20:gr32bit = COPY %8
%21:gr32bit = COPY %8
bb.1:
successors: %bb.3(0x7fffffff), %bb.2(0x00000001)
%2:gr32bit = COPY killed %21
%1:gr32bit = COPY killed %20
%0:grx32bit = COPY killed %19
TMLMux killed %0, 255, implicit-def $cc
%3:gr64bit = COPY %9
%3:gr64bit = LOCGHI %3, 1, 15, 7, implicit $cc
BRC 15, 8, %bb.3, implicit killed $cc
J %bb.2
bb.2:
successors:
bb.3:
%10:gr32bit = COPY killed %2
%10:gr32bit = OR %10, killed %1, implicit-def dead $cc
undef %11.subreg_l32:gr64bit = COPY killed %10
%13:gr64bit = COPY killed %11
%13:gr64bit = ROSBG %13, killed %3, 32, 63, 0, implicit-def dead $cc
CHIMux %8, 0, implicit-def $cc
BRC 14, 6, %bb.5, implicit killed $cc
J %bb.4
bb.4:
bb.5:
successors: %bb.7(0x00000001), %bb.6(0x7fffffff)
%4:grx32bit = COPY killed %13.subreg_l32
CHIMux undef %16:grx32bit, 10, implicit-def $cc
BRC 14, 8, %bb.7, implicit killed $cc
J %bb.6
bb.6:
%6:grx32bit = LBMux %17, 0, $noreg :: (dereferenceable load 1 from @g_105, align 2)
%19:grx32bit = COPY killed %6
%20:gr32bit = COPY killed %4
%21:gr32bit = IMPLICIT_DEF
J %bb.1
bb.7:
%18:addr64bit = LARL @g_149
STCMux killed %4, killed %18, 0, $noreg :: (store 1 into @g_149, align 2)
...
|