# RUN: llc %s -mtriple=s390x-linux-gnu -mcpu=z13 -start-before=postmisched \
# RUN: -debug-only=machine-scheduler -o - 2>&1 | FileCheck %s
# REQUIRES: asserts
# Test that the cycle index is the same before and after scheduling an
# instruction with 6 decoder slots.
# CHECK: ++ | Current cycle index: 3
# CHECK-NEXT: ++ | Resource counters: Z13_FXaUnit:2
# CHECK-NEXT: ** ScheduleDAGMI::schedule picking next node
# CHECK-NEXT: ** Available: {SU(3):DL/FXa(4cyc)/LSU/6uops/GroupsAlone, SU(6):LARL/FXa}
# CHECK-NEXT: ** Best so far: SU(3):DL/FXa(4cyc)/LSU/6uops/GroupsAlone Grouping cost:-1 Height:43
# CHECK-NEXT: ** Tried : SU(6):LARL/FXa Height:14
# CHECK-NEXT: ** Scheduling SU(3) Grouping cost:-1
# CHECK-NEXT: ++ HazardRecognizer emitting SU(3):DL/FXa(4cyc)/LSU/6uops/GroupsAlone
# CHECK-NEXT: ++ Decode group before emission: <empty>
# CHECK-NEXT: ++ Completed decode group: { SU(3):DL/FXa(4cyc)/LSU/6uops/GroupsAlone } (6 decoder slots)
# CHECK-NEXT: ++ | Current decoder group: <empty>
# CHECK-NEXT: ++ | Current cycle index: 3
--- |
; ModuleID = '<stdin>'
source_filename = "<stdin>"
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--linux-gnu"
%0 = type { i8, i8, i8, i8, i16, i32, i32, i32 }
@TTSize = external dso_local local_unnamed_addr global i32, align 4
@AS_TTable = external dso_local local_unnamed_addr global ptr, align 8
@Variant = external dso_local local_unnamed_addr global i32, align 4
define dso_local void @LearnStoreTT(i32 signext %arg, i32 zeroext %arg1, i32 signext %arg2) #0 {
bb:
%tmp = load i32, ptr @TTSize, align 4
%tmp3 = urem i32 %arg1, %tmp
%tmp4 = load ptr, ptr @AS_TTable, align 8
%tmp5 = zext i32 %tmp3 to i64
%tmp6 = load i32, ptr @Variant, align 4
%tmp7 = add i32 %tmp6, -3
%tmp8 = icmp ugt i32 %tmp7, 1
%tmp9 = select i1 %tmp8, i8 3, i8 1
store i8 %tmp9, ptr undef, align 1
store i32 %arg, ptr undef, align 4
%tmp10 = trunc i32 %arg2 to i8
store i8 %tmp10, ptr null, align 1
%tmp11 = getelementptr inbounds %0, ptr %tmp4, i64 %tmp5, i32 2
store i8 0, ptr %tmp11, align 2
ret void
}
attributes #0 = { "target-cpu"="z13" }
...
---
name: LearnStoreTT
alignment: 16
tracksRegLiveness: true
liveins:
- { reg: '$r2d' }
- { reg: '$r3d' }
- { reg: '$r4d' }
frameInfo:
maxCallFrameSize: 0
body: |
bb.0.bb:
liveins: $r2d, $r3d, $r4d
$r1d = LGR $r3d, implicit-def $r0q
renamable $r3d = LARL @TTSize
renamable $r0d = LLILL 0, implicit killed $r0q, implicit-def $r0q
renamable $r0q = DL killed renamable $r0q, killed renamable $r3d, 0, $noreg :: (dereferenceable load (s32) from @TTSize)
renamable $r3d = LGRL @AS_TTable :: (dereferenceable load (s64) from @AS_TTable)
renamable $r1d = LLGFR renamable $r0l, implicit killed $r0q
renamable $r5d = LARL @Variant
renamable $r0l = LHI -3
renamable $r0l = A killed renamable $r0l, killed renamable $r5d, 0, $noreg, implicit-def dead $cc :: (dereferenceable load (s32) from @Variant)
CLFI killed renamable $r0l, 1, implicit-def $cc
renamable $r0l = LHI 1
renamable $r0l = LOCHI killed renamable $r0l, 3, 14, 2, implicit killed $cc
STC killed renamable $r0l, undef renamable $r1d, 0, $noreg :: (store (s8) into `ptr undef`)
ST renamable $r2l, undef renamable $r1d, 0, $noreg, implicit killed $r2d :: (store (s32) into `ptr undef`)
STC renamable $r4l, $noreg, 0, $noreg, implicit killed $r4d :: (store (s8) into `ptr null`)
renamable $r1d = MGHI killed renamable $r1d, 20
renamable $r0l = LHI 0
STC killed renamable $r0l, killed renamable $r3d, 2, killed renamable $r1d :: (store (s8) into %ir.tmp11, align 2)
Return
...
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