mirror of
https://github.com/RPCS3/llvm-mirror.git
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bbf5be9d55
This adds infrastructure to print and parse MIR MachineOperand comments. The motivation for the ARM backend is to print condition code names instead of magic constants that are difficult to read (for human beings). For example, instead of this: dead renamable $r2, $cpsr = tEOR killed renamable $r2, renamable $r1, 14, $noreg t2Bcc %bb.4, 0, killed $cpsr we now print this: dead renamable $r2, $cpsr = tEOR killed renamable $r2, renamable $r1, 14 /* CC::always */, $noreg t2Bcc %bb.4, 0 /* CC:eq */, killed $cpsr This shows that MachineOperand comments are enclosed between /* and */. In this example, the EOR instruction is not conditionally executed (i.e. it is "always executed"), which is encoded by the 14 immediate machine operand. Thus, now this machine operand has /* CC::always */ as a comment. The 0 on the next conditional branch instruction represents the equal condition code, thus now this operand has /* CC:eq */ as a comment. As it is a comment, the MI lexer/parser completely ignores it. The benefit is that this keeps the change in the lexer extremely minimal and no target specific parsing needs to be done. The changes on the MIPrinter side are also minimal, as there is only one target hooks that is used to create the machine operand comments. Differential Revision: https://reviews.llvm.org/D74306
185 lines
6.4 KiB
YAML
185 lines
6.4 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -o - %s -mtriple=thumbv8.1m.main-arm-none-eabi -mattr=+mve.fp -run-pass=stack-protector -run-pass=prologepilog | FileCheck %s
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---
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name: func0
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tracksRegLiveness: true
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stack:
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- { id: 0, name: '', type: default, offset: 0, size: 16, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -16, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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body: |
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bb.0:
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; CHECK-LABEL: name: func0
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; CHECK: liveins: $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $lr
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; CHECK: $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r4, killed $r5, killed $r6, killed $r7, killed $r8, killed $r9, killed $r10, killed $r11, killed $lr
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; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 36
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; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
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; CHECK: frame-setup CFI_INSTRUCTION offset $r11, -8
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; CHECK: frame-setup CFI_INSTRUCTION offset $r10, -12
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; CHECK: frame-setup CFI_INSTRUCTION offset $r9, -16
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; CHECK: frame-setup CFI_INSTRUCTION offset $r8, -20
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; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -24
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; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -28
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; CHECK: frame-setup CFI_INSTRUCTION offset $r5, -32
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; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -36
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; CHECK: $sp = frame-setup tSUBspi $sp, 5, 14 /* CC::al */, $noreg
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; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 56
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; CHECK: $r0 = IMPLICIT_DEF
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; CHECK: $r1 = IMPLICIT_DEF
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; CHECK: $r2 = IMPLICIT_DEF
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; CHECK: $r3 = IMPLICIT_DEF
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; CHECK: $r4 = IMPLICIT_DEF
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; CHECK: $r5 = IMPLICIT_DEF
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; CHECK: $r6 = IMPLICIT_DEF
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; CHECK: $r7 = IMPLICIT_DEF
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; CHECK: $r8 = IMPLICIT_DEF
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; CHECK: $r9 = IMPLICIT_DEF
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; CHECK: $r10 = IMPLICIT_DEF
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; CHECK: $r11 = IMPLICIT_DEF
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; CHECK: $r12 = IMPLICIT_DEF
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; CHECK: $lr = IMPLICIT_DEF
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; CHECK: t2STRi12 killed $r0, $sp, 0, 14 /* CC::al */, $noreg :: (store 4 into %stack.1)
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; CHECK: $r0 = tMOVr killed $sp, 14 /* CC::al */, $noreg
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; CHECK: renamable $q2 = MVE_VLDRBU32 killed $r0, 16, 0, $noreg :: (load 4 from %stack.0 + 12)
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; CHECK: $r0 = t2LDRi12 $sp, 0, 14 /* CC::al */, $noreg :: (load 4 from %stack.1)
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; CHECK: KILL $r0
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; CHECK: KILL $r1
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; CHECK: KILL $r2
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; CHECK: KILL $r3
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; CHECK: KILL $r4
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; CHECK: KILL $r5
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; CHECK: KILL $r6
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; CHECK: KILL $r7
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; CHECK: KILL $r8
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; CHECK: KILL $r9
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; CHECK: KILL $r10
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; CHECK: KILL $r11
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; CHECK: KILL $r12
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; CHECK: KILL $lr
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$r0 = IMPLICIT_DEF
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$r1 = IMPLICIT_DEF
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$r2 = IMPLICIT_DEF
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$r3 = IMPLICIT_DEF
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$r4 = IMPLICIT_DEF
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$r5 = IMPLICIT_DEF
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$r6 = IMPLICIT_DEF
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$r7 = IMPLICIT_DEF
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$r8 = IMPLICIT_DEF
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$r9 = IMPLICIT_DEF
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$r10 = IMPLICIT_DEF
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$r11 = IMPLICIT_DEF
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$r12 = IMPLICIT_DEF
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$lr = IMPLICIT_DEF
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renamable $q2 = MVE_VLDRBU32 %stack.0, 12, 0, $noreg :: (load 4 from %stack.0 + 12)
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KILL $r0
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KILL $r1
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KILL $r2
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KILL $r3
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KILL $r4
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KILL $r5
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KILL $r6
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KILL $r7
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KILL $r8
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KILL $r9
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KILL $r10
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KILL $r11
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KILL $r12
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KILL $lr
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...
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---
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name: func1
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tracksRegLiveness: true
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stack:
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- { id: 0, name: '', type: default, offset: 0, size: 16, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -1200, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 1, name: '', type: default, offset: 0, size: 1200, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -1200, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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body: |
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bb.0:
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; CHECK-LABEL: name: func1
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; CHECK: liveins: $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $lr
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; CHECK: $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r4, killed $r5, killed $r6, killed $r7, killed $r8, killed $r9, killed $r10, killed $r11, killed $lr
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; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 36
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; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
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; CHECK: frame-setup CFI_INSTRUCTION offset $r11, -8
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; CHECK: frame-setup CFI_INSTRUCTION offset $r10, -12
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; CHECK: frame-setup CFI_INSTRUCTION offset $r9, -16
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; CHECK: frame-setup CFI_INSTRUCTION offset $r8, -20
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; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -24
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; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -28
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; CHECK: frame-setup CFI_INSTRUCTION offset $r5, -32
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; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -36
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; CHECK: $sp = frame-setup t2SUBspImm12 killed $sp, 1220, 14 /* CC::al */, $noreg
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; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 1256
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; CHECK: $r0 = IMPLICIT_DEF
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; CHECK: $r1 = IMPLICIT_DEF
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; CHECK: $r2 = IMPLICIT_DEF
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; CHECK: $r3 = IMPLICIT_DEF
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; CHECK: $r4 = IMPLICIT_DEF
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; CHECK: $r5 = IMPLICIT_DEF
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; CHECK: $r6 = IMPLICIT_DEF
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; CHECK: $r7 = IMPLICIT_DEF
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; CHECK: $r8 = IMPLICIT_DEF
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; CHECK: $r9 = IMPLICIT_DEF
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; CHECK: $r10 = IMPLICIT_DEF
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; CHECK: $r11 = IMPLICIT_DEF
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; CHECK: $r12 = IMPLICIT_DEF
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; CHECK: $lr = IMPLICIT_DEF
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; CHECK: t2STRi12 killed $r0, $sp, 0, 14 /* CC::al */, $noreg :: (store 4 into %stack.2)
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; CHECK: $r0 = t2ADDri killed $sp, 1152, 14 /* CC::al */, $noreg, $noreg
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; CHECK: renamable $q2 = MVE_VLDRBU8 killed $r0, 52, 0, $noreg :: (load 4 from %stack.0)
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; CHECK: $r0 = t2LDRi12 $sp, 0, 14 /* CC::al */, $noreg :: (load 4 from %stack.2)
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; CHECK: KILL $r0
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; CHECK: KILL $r1
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; CHECK: KILL $r2
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; CHECK: KILL $r3
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; CHECK: KILL $r4
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; CHECK: KILL $r5
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; CHECK: KILL $r6
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; CHECK: KILL $r7
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; CHECK: KILL $r8
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; CHECK: KILL $r9
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; CHECK: KILL $r10
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; CHECK: KILL $r11
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; CHECK: KILL $r12
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; CHECK: KILL $lr
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$r0 = IMPLICIT_DEF
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$r1 = IMPLICIT_DEF
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$r2 = IMPLICIT_DEF
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$r3 = IMPLICIT_DEF
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$r4 = IMPLICIT_DEF
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$r5 = IMPLICIT_DEF
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$r6 = IMPLICIT_DEF
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$r7 = IMPLICIT_DEF
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$r8 = IMPLICIT_DEF
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$r9 = IMPLICIT_DEF
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$r10 = IMPLICIT_DEF
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$r11 = IMPLICIT_DEF
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$r12 = IMPLICIT_DEF
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$lr = IMPLICIT_DEF
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renamable $q2 = MVE_VLDRBU8 %stack.0, 0, 0, $noreg :: (load 4 from %stack.0)
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KILL $r0
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KILL $r1
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KILL $r2
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KILL $r3
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KILL $r4
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KILL $r5
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KILL $r6
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KILL $r7
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KILL $r8
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KILL $r9
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KILL $r10
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KILL $r11
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KILL $r12
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KILL $lr
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...
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