# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -run-pass=machine-scheduler -mcpu=sandybridge %s -o - | FileCheck %s
--- |
; ModuleID = 'crash.ll'
source_filename = "crash.c"
target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128"
target triple = "i386-unknown-linux-gnu"
%struct.in6_addr = type { %struct.anon }
%struct.anon = type { i8 }
%struct.sk_buff = type { i8 }
%struct.ipv6hdr = type { %struct.in6_addr }
@csum_ipv6_magic_sum = dso_local local_unnamed_addr global i32 0, align 4
@csum_ipv6_magic_saddr = dso_local local_unnamed_addr global %struct.in6_addr zeroinitializer, align 1
@csum_ipv6_magic_daddr = dso_local local_unnamed_addr global i32 0, align 4
@csum_ipv6_magic_proto = dso_local local_unnamed_addr global i32 0, align 4
@synproxy_send_tcp_ipv6_nskb = dso_local local_unnamed_addr global %struct.sk_buff* null, align 4
@synproxy_send_tcp_ipv6_fl6 = dso_local local_unnamed_addr global %struct.in6_addr zeroinitializer, align 1
; Function Attrs: nounwind uwtable
define dso_local void @synproxy_send_tcp_ipv6(i32 inreg %skb.coerce, %struct.ipv6hdr* inreg nocapture noundef readonly %niph) local_unnamed_addr #0 {
entry:
%0 = load i8, i8* getelementptr inbounds (%struct.in6_addr, %struct.in6_addr* @csum_ipv6_magic_saddr, i32 0, i32 0, i32 0), align 1
%1 = load i32, i32* @csum_ipv6_magic_daddr, align 4, !tbaa !5
%2 = load i32, i32* @csum_ipv6_magic_proto, align 4, !tbaa !5
%3 = tail call i32 asm "", "=&r,r,r,r,r,~{dirflag},~{fpsr},~{flags}"(i8 %0, i32 %1, i32 0, i32 %2) #2, !srcloc !9
store i32 %3, i32* @csum_ipv6_magic_sum, align 4, !tbaa !5
%4 = load i8*, i8** bitcast (%struct.sk_buff** @synproxy_send_tcp_ipv6_nskb to i8**), align 4, !tbaa !10
%bf.load = load i8, i8* %4, align 1
%bf.set = or i8 %bf.load, 3
store i8 %bf.set, i8* %4, align 1
%5 = bitcast %struct.ipv6hdr* %niph to i8*
%6 = load i8, i8* %5, align 1, !tbaa !12
store i8 %6, i8* getelementptr inbounds (%struct.in6_addr, %struct.in6_addr* @synproxy_send_tcp_ipv6_fl6, i32 0, i32 0, i32 0), align 1, !tbaa !12
%skb.coerce1.sroa.0.0.insert.ext = and i32 %skb.coerce, 255
tail call void @fl6nthsecurity_skb_classify_flow(i32 inreg %skb.coerce1.sroa.0.0.insert.ext) #3
ret void
}
declare dso_local void @fl6nthsecurity_skb_classify_flow(i32 inreg) local_unnamed_addr #1
attributes #0 = { nounwind uwtable "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nounwind readnone }
attributes #3 = { nounwind }
!llvm.module.flags = !{!0, !1, !2, !3}
!0 = !{i32 1, !"NumRegisterParameters", i32 3}
!1 = !{i32 1, !"wchar_size", i32 4}
!2 = !{i32 7, !"uwtable", i32 2}
!3 = !{i32 7, !"frame-pointer", i32 2}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{i64 429}
!10 = !{!11, !11, i64 0}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!7, !7, i64 0}
...
---
name: synproxy_send_tcp_ipv6
alignment: 16
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
failsVerification: false
tracksDebugUserValues: false
registers:
- { id: 0, class: gr32_abcd, preferred-register: '' }
- { id: 1, class: gr32, preferred-register: '' }
- { id: 2, class: gr32, preferred-register: '' }
- { id: 3, class: gr8, preferred-register: '' }
- { id: 4, class: gr32, preferred-register: '' }
- { id: 5, class: gr32, preferred-register: '' }
- { id: 6, class: gr32, preferred-register: '' }
- { id: 7, class: gr32, preferred-register: '' }
- { id: 8, class: gr8, preferred-register: '' }
- { id: 9, class: gr8, preferred-register: '' }
- { id: 10, class: gr32, preferred-register: '' }
liveins:
- { reg: '$eax', virtual-reg: '%0' }
- { reg: '$edx', virtual-reg: '%1' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 4294967295
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: true
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack: []
stack: []
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo: {}
body: |
bb.0.entry:
liveins: $eax, $edx
; CHECK-LABEL: name: synproxy_send_tcp_ipv6
; CHECK: liveins: $eax, $edx
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gr32 = COPY $edx
; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr32_abcd = COPY $eax
; CHECK-NEXT: [[MOV8rm:%[0-9]+]]:gr8 = MOV8rm $noreg, 1, $noreg, @csum_ipv6_magic_saddr, $noreg :: (dereferenceable load (s8) from `i8* getelementptr inbounds (%struct.in6_addr, %struct.in6_addr* @csum_ipv6_magic_saddr, i32 0, i32 0, i32 0)`)
; CHECK-NEXT: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm $noreg, 1, $noreg, @csum_ipv6_magic_daddr, $noreg :: (dereferenceable load (s32) from @csum_ipv6_magic_daddr, !tbaa !4)
; CHECK-NEXT: [[MOV32rm1:%[0-9]+]]:gr32 = MOV32rm $noreg, 1, $noreg, @csum_ipv6_magic_proto, $noreg :: (dereferenceable load (s32) from @csum_ipv6_magic_proto, !tbaa !4)
; CHECK-NEXT: [[MOV32r0_:%[0-9]+]]:gr32 = MOV32r0 implicit-def dead $eflags
; CHECK-NEXT: INLINEASM &"", 0 /* attdialect */, 2359307 /* regdef-ec:GR32 */, def early-clobber %2, 65545 /* reguse:GR8 */, [[MOV8rm]], 2359305 /* reguse:GR32 */, [[MOV32rm]], 2359305 /* reguse:GR32 */, [[MOV32r0_]], 2359305 /* reguse:GR32 */, [[MOV32rm1]], 12 /* clobber */, implicit-def dead early-clobber $df, 12 /* clobber */, implicit-def early-clobber $fpsw, 12 /* clobber */, implicit-def dead early-clobber $eflags, !8
; CHECK-NEXT: MOV32mr $noreg, 1, $noreg, @csum_ipv6_magic_sum, $noreg, %2 :: (store (s32) into @csum_ipv6_magic_sum, !tbaa !4)
; CHECK-NEXT: [[MOV32rm2:%[0-9]+]]:gr32 = MOV32rm $noreg, 1, $noreg, @synproxy_send_tcp_ipv6_nskb, $noreg :: (dereferenceable load (s32) from `i8** bitcast (%struct.sk_buff** @synproxy_send_tcp_ipv6_nskb to i8**)`, !tbaa !9)
; CHECK-NEXT: OR8mi [[MOV32rm2]], 1, $noreg, 0, $noreg, 3, implicit-def dead $eflags :: (store (s8) into %ir.4), (load (s8) from %ir.4)
; CHECK-NEXT: [[MOV8rm1:%[0-9]+]]:gr8 = MOV8rm [[COPY]], 1, $noreg, 0, $noreg :: (load (s8) from %ir.5, !tbaa !11)
; CHECK-NEXT: MOV8mr $noreg, 1, $noreg, @synproxy_send_tcp_ipv6_fl6, $noreg, [[MOV8rm1]] :: (store (s8) into `i8* getelementptr inbounds (%struct.in6_addr, %struct.in6_addr* @synproxy_send_tcp_ipv6_fl6, i32 0, i32 0, i32 0)`, !tbaa !11)
; CHECK-NEXT: [[MOVZX32rr8_:%[0-9]+]]:gr32 = MOVZX32rr8 [[COPY1]].sub_8bit
; CHECK-NEXT: $eax = COPY [[MOVZX32rr8_]]
; CHECK-NEXT: TCRETURNdi @fl6nthsecurity_skb_classify_flow, 0, csr_32, implicit $esp, implicit $ssp, implicit $eax
%1:gr32 = COPY $edx
%0:gr32_abcd = COPY $eax
%3:gr8 = MOV8rm $noreg, 1, $noreg, @csum_ipv6_magic_saddr, $noreg :: (dereferenceable load (s8) from `i8* getelementptr inbounds (%struct.in6_addr, %struct.in6_addr* @csum_ipv6_magic_saddr, i32 0, i32 0, i32 0)`)
%4:gr32 = MOV32rm $noreg, 1, $noreg, @csum_ipv6_magic_daddr, $noreg :: (dereferenceable load (s32) from @csum_ipv6_magic_daddr, !tbaa !5)
%6:gr32 = MOV32rm $noreg, 1, $noreg, @csum_ipv6_magic_proto, $noreg :: (dereferenceable load (s32) from @csum_ipv6_magic_proto, !tbaa !5)
%5:gr32 = MOV32r0 implicit-def dead $eflags
INLINEASM &"", 0 /* attdialect */, 2359307 /* regdef-ec:GR32 */, def early-clobber %2, 65545 /* reguse:GR8 */, %3, 2359305 /* reguse:GR32 */, %4, 2359305 /* reguse:GR32 */, %5, 2359305 /* reguse:GR32 */, %6, 12 /* clobber */, implicit-def dead early-clobber $df, 12 /* clobber */, implicit-def early-clobber $fpsw, 12 /* clobber */, implicit-def dead early-clobber $eflags, !9
MOV32mr $noreg, 1, $noreg, @csum_ipv6_magic_sum, $noreg, %2 :: (store (s32) into @csum_ipv6_magic_sum, !tbaa !5)
%7:gr32 = MOV32rm $noreg, 1, $noreg, @synproxy_send_tcp_ipv6_nskb, $noreg :: (dereferenceable load (s32) from `i8** bitcast (%struct.sk_buff** @synproxy_send_tcp_ipv6_nskb to i8**)`, !tbaa !10)
OR8mi %7, 1, $noreg, 0, $noreg, 3, implicit-def dead $eflags :: (store (s8) into %ir.4), (load (s8) from %ir.4)
%8:gr8 = MOV8rm %1, 1, $noreg, 0, $noreg :: (load (s8) from %ir.5, !tbaa !12)
MOV8mr $noreg, 1, $noreg, @synproxy_send_tcp_ipv6_fl6, $noreg, %8 :: (store (s8) into `i8* getelementptr inbounds (%struct.in6_addr, %struct.in6_addr* @synproxy_send_tcp_ipv6_fl6, i32 0, i32 0, i32 0)`, !tbaa !12)
%10:gr32 = MOVZX32rr8 %0.sub_8bit
$eax = COPY %10
TCRETURNdi @fl6nthsecurity_skb_classify_flow, 0, csr_32, implicit $esp, implicit $ssp, implicit $eax
...