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llvm-project/llvm/test/CodeGen/SystemZ/RAbasic-invalid-LR-update.mir

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# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -run-pass=regallocbasic %s -o - | FileCheck %s
# This test used to assert in RABasic. The problem was when we split live-ranges,
# we were not updating the LiveRegMatrix properly and the interference calculation
# wouldn't match what the assignment thought it could do.
# In other words, this test case needs to trigger live-range splitting to exercise
# the problem.
#
# PR33057
--- |
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"
define void @autogen_SD21418() #0 {
ret void
}
attributes #0 = { "target-cpu"="z13" }
...
# CHECK: name: autogen_SD21418
# Check that at least one live-range has been split
# CHECK: id: 114, class
---
name: autogen_SD21418
alignment: 2
tracksRegLiveness: true
registers:
- { id: 0, class: vr128bit }
- { id: 1, class: vr128bit }
- { id: 2, class: vr128bit }
- { id: 3, class: vr64bit }
- { id: 4, class: gr64bit }
- { id: 5, class: vr128bit }
- { id: 6, class: grx32bit }
- { id: 7, class: vr128bit }
- { id: 8, class: vr128bit }
- { id: 9, class: gr32bit }
- { id: 10, class: gr64bit }
- { id: 11, class: vr128bit }
- { id: 12, class: fp64bit }
- { id: 13, class: vr64bit }
- { id: 14, class: vr64bit }
- { id: 15, class: gr64bit }
- { id: 16, class: gr128bit }
- { id: 17, class: gr64bit }
- { id: 18, class: gr32bit }
- { id: 19, class: gr32bit }
- { id: 20, class: gr128bit }
- { id: 21, class: gr32bit }
- { id: 22, class: gr64bit }
- { id: 23, class: gr32bit }
- { id: 24, class: gr32bit }
- { id: 25, class: gr128bit }
- { id: 26, class: grx32bit }
- { id: 27, class: gr64bit }
- { id: 28, class: gr64bit }
- { id: 29, class: vr128bit }
- { id: 30, class: vr128bit }
- { id: 31, class: gr64bit }
- { id: 32, class: gr32bit }
- { id: 33, class: gr32bit }
- { id: 34, class: gr128bit }
- { id: 35, class: gr32bit }
- { id: 36, class: vr128bit }
- { id: 37, class: gr64bit }
- { id: 38, class: gr32bit }
- { id: 39, class: gr32bit }
- { id: 40, class: gr128bit }
- { id: 41, class: gr32bit }
- { id: 42, class: addr64bit }
- { id: 43, class: grx32bit }
- { id: 44, class: addr64bit }
- { id: 45, class: vr64bit }
- { id: 46, class: vr64bit }
- { id: 47, class: gr32bit }
- { id: 48, class: gr32bit }
- { id: 49, class: grx32bit }
- { id: 50, class: vr64bit }
- { id: 51, class: gr64bit }
- { id: 52, class: grx32bit }
- { id: 53, class: gr32bit }
- { id: 54, class: gr64bit }
- { id: 55, class: grx32bit }
- { id: 56, class: gr32bit }
- { id: 57, class: gr128bit }
- { id: 58, class: gr128bit }
- { id: 59, class: gr32bit }
- { id: 60, class: gr64bit }
- { id: 61, class: grx32bit }
- { id: 62, class: gr32bit }
- { id: 63, class: gr64bit }
- { id: 64, class: grx32bit }
- { id: 65, class: gr32bit }
- { id: 66, class: gr128bit }
- { id: 67, class: gr128bit }
- { id: 68, class: grx32bit }
- { id: 69, class: gr64bit }
- { id: 70, class: gr64bit }
- { id: 71, class: vr128bit }
- { id: 72, class: vr128bit }
- { id: 73, class: gr64bit }
- { id: 74, class: grx32bit }
- { id: 75, class: gr32bit }
- { id: 76, class: gr64bit }
- { id: 77, class: grx32bit }
- { id: 78, class: gr32bit }
- { id: 79, class: gr128bit }
- { id: 80, class: gr128bit }
- { id: 81, class: gr32bit }
- { id: 82, class: vr128bit }
- { id: 83, class: gr64bit }
- { id: 84, class: grx32bit }
- { id: 85, class: gr32bit }
- { id: 86, class: gr64bit }
- { id: 87, class: grx32bit }
- { id: 88, class: gr32bit }
- { id: 89, class: gr128bit }
- { id: 90, class: gr128bit }
- { id: 91, class: gr32bit }
- { id: 92, class: grx32bit }
- { id: 93, class: gr64bit }
- { id: 94, class: gr32bit }
- { id: 95, class: gr32bit }
- { id: 96, class: gr32bit }
- { id: 97, class: gr64bit }
- { id: 98, class: gr64bit }
- { id: 99, class: grx32bit }
- { id: 100, class: grx32bit }
- { id: 101, class: gr128bit }
- { id: 102, class: gr128bit }
- { id: 103, class: gr128bit }
- { id: 104, class: gr64bit }
- { id: 105, class: gr128bit }
- { id: 106, class: gr128bit }
- { id: 107, class: gr64bit }
- { id: 108, class: gr128bit }
- { id: 109, class: gr128bit }
- { id: 110, class: gr64bit }
- { id: 111, class: gr128bit }
- { id: 112, class: gr128bit }
- { id: 113, class: gr64bit }
constants:
- id: 0
value: double 0xD55960F86F577076
alignment: 8
body: |
bb.0:
%11 = VGBM 0
%43 = LHIMux 0
%44 = LARL %const.0
%45 = VL64 %44, 0, %noreg :: (load 8 from constant-pool)
bb.1:
ADJCALLSTACKDOWN 0, 0
%12 = LZDR
%f0d = COPY %12
CallBRASL $fmod, killed %f0d, undef %f2d, csr_systemz, implicit-def dead %r14d, implicit-def dead %cc, implicit-def %f0d
ADJCALLSTACKUP 0, 0
KILL killed %f0d
bb.2:
%17 = VLGVH %11, %noreg, 0
%19 = LHR %17.subreg_l32
undef %20.subreg_l64 = LGHI 0
%20 = DSGFR %20, %19
%22 = VLGVH %11, %noreg, 3
%24 = LHR %22.subreg_l32
undef %25.subreg_l64 = LGHI 0
%25 = DSGFR %25, %24
%31 = VLGVH %11, %noreg, 1
%33 = LHR %31.subreg_l32
undef %34.subreg_l64 = LGHI 0
%34 = DSGFR %34, %33
%37 = VLGVH %11, %noreg, 2
%39 = LHR %37.subreg_l32
undef %40.subreg_l64 = LGHI 0
%40 = DSGFR %40, %39
CHIMux %43, 0, implicit-def %cc
BRC 14, 6, %bb.2, implicit killed %cc
J %bb.3
bb.3:
WFCDB undef %46, %45, implicit-def %cc
%48 = IPM implicit killed %cc
%48 = AFIMux %48, 268435456, implicit-def dead %cc
%6 = RISBMux undef %6, %48, 31, 159, 35
WFCDB undef %50, %45, implicit-def %cc
BRC 15, 6, %bb.1, implicit killed %cc
J %bb.4
bb.4:
%36 = VLVGP %25.subreg_l64, %25.subreg_l64
%36 = VLVGH %36, %20.subreg_l32, %noreg, 0
%36 = VLVGH %36, %34.subreg_l32, %noreg, 1
dead %36 = VLVGH %36, %40.subreg_l32, %noreg, 2
%4 = LG undef %42, 0, %noreg :: (load 8 from `i64* undef`)
undef %57.subreg_h64 = LLILL 0
undef %66.subreg_h64 = LLILL 0
undef %79.subreg_h64 = LLILL 0
undef %89.subreg_h64 = LLILL 0
%92 = LHIMux 0
bb.5:
bb.6:
%51 = VLGVH undef %7, %noreg, 0
%53 = LLHRMux %51.subreg_l32
%54 = VLGVH undef %1, %noreg, 0
%57.subreg_l32 = LLHRMux %54.subreg_l32
%58 = COPY %57
%58 = DLR %58, %53
%60 = VLGVH undef %7, %noreg, 3
%62 = LLHRMux %60.subreg_l32
%63 = VLGVH undef %1, %noreg, 3
%66.subreg_l32 = LLHRMux %63.subreg_l32
%67 = COPY %66
%67 = DLR %67, %62
%73 = VLGVH undef %7, %noreg, 1
%75 = LLHRMux %73.subreg_l32
%76 = VLGVH undef %1, %noreg, 1
%79.subreg_l32 = LLHRMux %76.subreg_l32
%80 = COPY %79
%80 = DLR %80, %75
%83 = VLGVH undef %7, %noreg, 2
%85 = LLHRMux %83.subreg_l32
%86 = VLGVH undef %1, %noreg, 2
%89.subreg_l32 = LLHRMux %86.subreg_l32
%90 = COPY %89
%90 = DLR %90, %85
CHIMux %92, 0, implicit-def %cc
BRC 14, 6, %bb.7, implicit killed %cc
J %bb.6
bb.7:
CGHI undef %93, 0, implicit-def %cc
%96 = IPM implicit killed %cc
CGHI undef %97, 0, implicit-def %cc
BRC 14, 6, %bb.6, implicit killed %cc
bb.8:
CHIMux %6, 0, implicit-def %cc
%10 = LLILL 41639
dead %10 = LOCGR %10, %4, 14, 6, implicit killed %cc
CHIMux %92, 0, implicit-def %cc
BRC 14, 6, %bb.5, implicit killed %cc
J %bb.9
bb.9:
%82 = VLVGP %67.subreg_h64, %67.subreg_h64
%82 = VLVGH %82, %58.subreg_hl32, %noreg, 0
%82 = VLVGH %82, %80.subreg_hl32, %noreg, 1
dead %82 = VLVGH %82, %90.subreg_hl32, %noreg, 2
%96 = AFIMux %96, 1879048192, implicit-def dead %cc
%96 = SRL %96, %noreg, 31
dead %11 = VLVGF %11, %96, %noreg, 1
%100 = LHIMux 0
bb.10:
CHIMux %100, 0, implicit-def %cc
BRC 14, 6, %bb.10, implicit killed %cc
J %bb.11
bb.11:
Return
...
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