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llvm-project/llvm/test/CodeGen/AArch64/nested-iv-regalloc.mir
Philip Reames 4d629f9744
[MIR] Remove std::variant from multiple save/restore point handling [nfc] (#153226) 
In review of bbde6b, I had originally proposed that we support the
legacy text format. As review evolved, it bacame clear this had been a
bad idea (too much complexity), but in order to let that patch finally
move forward, I approved the change with the variant. This change undoes
the variant, and updates all the tests to just use the array form.
2025-08-12 11:23:05 -07:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64 -aarch64-enable-subreg-liveness-tracking --run-pass=greedy,virtregrewriter -verify-machineinstrs %s -o - | FileCheck %s
# We should ideally not spill around any of the SUBSWri in the loop exit blocks (if.end and if.end27).
--- |
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64"
@g = dso_local local_unnamed_addr global [9 x [9 x i32]] zeroinitializer, align 4
define void @test(ptr nocapture noundef readonly %p, i32 noundef %m, ptr noundef %q) {
entry:
%0 = load i32, ptr %p, align 4
%spec.select = tail call i32 @llvm.smax.i32(i32 %0, i32 1)
%arrayidx2 = getelementptr inbounds i32, ptr %p, i64 1
%1 = load i32, ptr %arrayidx2, align 4
%cond8 = tail call i32 @llvm.smax.i32(i32 %1, i32 1)
br label %do.body
do.body: ; preds = %if.end27, %entry
%indvars.iv49 = phi i64 [ %indvars.iv.next50, %if.end27 ], [ 0, %entry ]
%n0.0 = phi i32 [ %dec30, %if.end27 ], [ %spec.select, %entry ]
%n1.0 = phi i32 [ %n1.2, %if.end27 ], [ %cond8, %entry ]
%arrayidx9 = getelementptr inbounds [9 x [9 x i32]], ptr @g, i64 0, i64 %indvars.iv49
%2 = load i32, ptr %arrayidx9, align 4
%cmp11 = icmp sgt i32 %2, 0
br i1 %cmp11, label %do.body12.preheader, label %if.end27
do.body12.preheader: ; preds = %do.body
br label %do.body12
do.body12: ; preds = %do.body12.preheader, %if.end
%indvars.iv = phi i64 [ %indvars.iv.next, %if.end ], [ 0, %do.body12.preheader ]
%n1.1 = phi i32 [ %dec, %if.end ], [ %n1.0, %do.body12.preheader ]
%arrayidx14 = getelementptr inbounds [9 x [9 x i32]], ptr @g, i64 0, i64 %indvars.iv
%3 = load i32, ptr %arrayidx14, align 4
%cmp16 = icmp sgt i32 %3, 0
br i1 %cmp16, label %if.then17, label %if.end
if.then17: ; preds = %do.body12
%arrayidx19 = getelementptr inbounds i32, ptr %q, i64 %indvars.iv
%4 = load volatile i32, ptr %arrayidx19, align 4
br label %for.body
for.cond.cleanup: ; preds = %for.body
tail call void asm sideeffect "nop;nop", "~{x0},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x16},~{x17},~{x18},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{fp},~{lr}"() #3
%sunkaddr = mul i64 %indvars.iv, 4
%sunkaddr1 = getelementptr inbounds i8, ptr %q, i64 %sunkaddr
store volatile i32 %add, ptr %sunkaddr1, align 4
br label %if.end
for.body: ; preds = %for.body, %if.then17
%lsr.iv = phi i32 [ %lsr.iv.next, %for.body ], [ 100, %if.then17 ]
%s.046 = phi i32 [ %4, %if.then17 ], [ %add, %for.body ]
%call = tail call i32 @callee() #3
%add = add nsw i32 %call, %s.046
%lsr.iv.next = add nsw i32 %lsr.iv, -1
%exitcond.not = icmp eq i32 %lsr.iv.next, 0
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
if.end: ; preds = %for.cond.cleanup, %do.body12
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%dec = add nsw i32 %n1.1, -1
%cmp24.not = icmp eq i32 %dec, 0
br i1 %cmp24.not, label %do.end, label %do.body12
do.end: ; preds = %if.end
%arrayidx26 = getelementptr inbounds i32, ptr %q, i64 %indvars.iv49
store volatile i32 0, ptr %arrayidx26, align 4
br label %if.end27
if.end27: ; preds = %do.end, %do.body
%n1.2 = phi i32 [ 0, %do.end ], [ %n1.0, %do.body ]
%indvars.iv.next50 = add nuw nsw i64 %indvars.iv49, 1
%dec30 = add nsw i32 %n0.0, -1
%cmp31.not = icmp eq i32 %dec30, 0
br i1 %cmp31.not, label %do.end32, label %do.body
do.end32: ; preds = %if.end27
ret void
}
declare i32 @callee(...)
declare i32 @llvm.smax.i32(i32, i32) #2
...
---
name: test
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
callsEHReturn: false
callsUnwindInit: false
hasEHContTarget: false
hasEHScopes: false
hasEHFunclets: false
isOutlined: false
debugInstrRef: false
failsVerification: false
tracksDebugUserValues: false
registers:
- { id: 0, class: gpr32, preferred-register: '' }
- { id: 1, class: gpr32, preferred-register: '' }
- { id: 2, class: gpr64common, preferred-register: '' }
- { id: 3, class: gpr32sp, preferred-register: '' }
- { id: 4, class: gpr32all, preferred-register: '' }
- { id: 5, class: gpr64common, preferred-register: '' }
- { id: 6, class: gpr32sp, preferred-register: '' }
- { id: 7, class: gpr32, preferred-register: '' }
- { id: 8, class: gpr32sp, preferred-register: '' }
- { id: 9, class: gpr32, preferred-register: '' }
- { id: 10, class: gpr32, preferred-register: '' }
- { id: 11, class: gpr32, preferred-register: '' }
- { id: 12, class: gpr64sp, preferred-register: '' }
- { id: 13, class: gpr32, preferred-register: '' }
- { id: 14, class: gpr32all, preferred-register: '' }
- { id: 15, class: gpr64sp, preferred-register: '' }
- { id: 16, class: gpr32, preferred-register: '' }
- { id: 17, class: gpr64common, preferred-register: '' }
- { id: 18, class: gpr32, preferred-register: '' }
- { id: 19, class: gpr64common, preferred-register: '' }
- { id: 20, class: gpr64all, preferred-register: '' }
- { id: 21, class: gpr32common, preferred-register: '' }
- { id: 22, class: gpr32, preferred-register: '' }
- { id: 23, class: gpr32, preferred-register: '' }
- { id: 24, class: gpr32common, preferred-register: '' }
- { id: 25, class: gpr32, preferred-register: '' }
- { id: 26, class: gpr32, preferred-register: '' }
- { id: 27, class: gpr64all, preferred-register: '' }
- { id: 28, class: gpr32, preferred-register: '' }
- { id: 29, class: gpr64, preferred-register: '' }
- { id: 30, class: gpr64, preferred-register: '' }
- { id: 31, class: gpr64common, preferred-register: '' }
- { id: 32, class: gpr32common, preferred-register: '' }
- { id: 33, class: gpr32, preferred-register: '' }
- { id: 34, class: gpr64all, preferred-register: '' }
- { id: 35, class: gpr64all, preferred-register: '' }
- { id: 36, class: gpr32, preferred-register: '' }
- { id: 37, class: gpr64, preferred-register: '' }
- { id: 38, class: gpr64, preferred-register: '' }
- { id: 39, class: gpr64common, preferred-register: '' }
- { id: 40, class: gpr32common, preferred-register: '' }
- { id: 41, class: gpr32, preferred-register: '' }
- { id: 42, class: gpr32, preferred-register: '' }
- { id: 43, class: gpr32, preferred-register: '' }
- { id: 44, class: gpr32, preferred-register: '' }
- { id: 45, class: gpr32, preferred-register: '' }
- { id: 46, class: gpr32, preferred-register: '' }
- { id: 47, class: gpr32, preferred-register: '' }
- { id: 48, class: gpr64sp, preferred-register: '' }
- { id: 49, class: gpr32, preferred-register: '' }
- { id: 50, class: gpr32all, preferred-register: '' }
- { id: 51, class: gpr32, preferred-register: '' }
- { id: 52, class: gpr64sp, preferred-register: '' }
- { id: 53, class: gpr32, preferred-register: '' }
- { id: 54, class: gpr64common, preferred-register: '' }
- { id: 55, class: gpr32common, preferred-register: '' }
- { id: 56, class: gpr32common, preferred-register: '' }
- { id: 57, class: gpr64common, preferred-register: '' }
- { id: 58, class: gpr32common, preferred-register: '' }
- { id: 59, class: gpr32common, preferred-register: '' }
- { id: 60, class: gpr32, preferred-register: '' }
- { id: 61, class: gpr32all, preferred-register: '' }
liveins:
- { reg: '$x0', virtual-reg: '%17' }
- { reg: '$x2', virtual-reg: '%19' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: true
hasCalls: true
stackProtector: ''
functionContext: ''
maxCallFrameSize: 0
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: false
localFrameSize: 0
savePoint: []
restorePoint: []
fixedStack: []
stack: []
entry_values: []
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: test
; CHECK: bb.0.entry:
; CHECK-NEXT: successors: %bb.1(0x80000000)
; CHECK-NEXT: liveins: $x0, $x2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $x10 = COPY $xzr
; CHECK-NEXT: renamable $w8 = LDRWui renamable $x0, 0 :: (load (s32) from %ir.p)
; CHECK-NEXT: renamable $w9 = LDRWui killed renamable $x0, 1 :: (load (s32) from %ir.arrayidx2)
; CHECK-NEXT: dead $wzr = SUBSWri renamable $w8, 1, 0, implicit-def $nzcv
; CHECK-NEXT: renamable $w11 = CSINCWr killed renamable $w8, $wzr, 12, implicit $nzcv
; CHECK-NEXT: renamable $x8 = COPY killed renamable $x10
; CHECK-NEXT: dead $wzr = SUBSWri renamable $w9, 1, 0, implicit-def $nzcv
; CHECK-NEXT: renamable $w10 = CSINCWr killed renamable $w9, $wzr, 12, implicit $nzcv
; CHECK-NEXT: STRXui renamable $x2, %stack.0, 0 :: (store (s64) into %stack.0)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1.do.body:
; CHECK-NEXT: successors: %bb.3(0x50000000), %bb.2(0x30000000)
; CHECK-NEXT: liveins: $w10, $w11, $x2, $x8
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: STRXui renamable $x8, %stack.1, 0 :: (store (s64) into %stack.1)
; CHECK-NEXT: renamable $w9 = MOVi32imm 36
; CHECK-NEXT: renamable $x8 = MADDXrrr killed renamable $x8, killed renamable $x9, $xzr
; CHECK-NEXT: renamable $x9 = MOVaddr target-flags(aarch64-page) @g, target-flags(aarch64-pageoff, aarch64-nc) @g
; CHECK-NEXT: renamable $w8 = LDRWroX killed renamable $x9, killed renamable $x8, 0, 0 :: (load (s32) from %ir.arrayidx9)
; CHECK-NEXT: dead $wzr = SUBSWri killed renamable $w8, 1, 0, implicit-def $nzcv
; CHECK-NEXT: Bcc 10, %bb.3, implicit $nzcv
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2:
; CHECK-NEXT: successors: %bb.10(0x80000000)
; CHECK-NEXT: liveins: $w10, $w11, $x2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $x8 = LDRXui %stack.1, 0 :: (load (s64) from %stack.1)
; CHECK-NEXT: B %bb.10
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3.do.body12.preheader:
; CHECK-NEXT: successors: %bb.4(0x80000000)
; CHECK-NEXT: liveins: $w10, $w11, $x2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $x12 = COPY $xzr
; CHECK-NEXT: STRWui renamable $w11, %stack.2, 0 :: (store (s32) into %stack.2)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.4.do.body12:
; CHECK-NEXT: successors: %bb.5(0x50000000), %bb.8(0x30000000)
; CHECK-NEXT: liveins: $w10, $w11, $x2, $x12
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w8 = MOVi32imm 36
; CHECK-NEXT: renamable $x8 = MADDXrrr renamable $x12, killed renamable $x8, $xzr
; CHECK-NEXT: renamable $x9 = MOVaddr target-flags(aarch64-page) @g, target-flags(aarch64-pageoff, aarch64-nc) @g
; CHECK-NEXT: renamable $w8 = LDRWroX killed renamable $x9, killed renamable $x8, 0, 0 :: (load (s32) from %ir.arrayidx14)
; CHECK-NEXT: dead $wzr = SUBSWri killed renamable $w8, 1, 0, implicit-def $nzcv
; CHECK-NEXT: Bcc 11, %bb.8, implicit $nzcv
; CHECK-NEXT: B %bb.5
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.5.if.then17:
; CHECK-NEXT: successors: %bb.7(0x80000000)
; CHECK-NEXT: liveins: $w10, $x2, $x12
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: STRWui killed renamable $w10, %stack.3, 0 :: (store (s32) into %stack.3)
; CHECK-NEXT: STRXui renamable $x12, %stack.4, 0 :: (store (s64) into %stack.4)
; CHECK-NEXT: renamable $w20 = LDRWroX killed renamable $x2, killed renamable $x12, 0, 1 :: (volatile load (s32) from %ir.arrayidx19)
; CHECK-NEXT: renamable $w19 = MOVi32imm 100
; CHECK-NEXT: B %bb.7
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.6.for.cond.cleanup:
; CHECK-NEXT: successors: %bb.8(0x80000000)
; CHECK-NEXT: liveins: $w20
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w1 = COPY killed renamable $w20
; CHECK-NEXT: INLINEASM &"nop;nop", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $x0, 12 /* clobber */, implicit-def dead early-clobber $x2, 12 /* clobber */, implicit-def dead early-clobber $x3, 12 /* clobber */, implicit-def dead early-clobber $x4, 12 /* clobber */, implicit-def dead early-clobber $x5, 12 /* clobber */, implicit-def dead early-clobber $x6, 12 /* clobber */, implicit-def dead early-clobber $x7, 12 /* clobber */, implicit-def dead early-clobber $x8, 12 /* clobber */, implicit-def dead early-clobber $x9, 12 /* clobber */, implicit-def dead early-clobber $x10, 12 /* clobber */, implicit-def dead early-clobber $x11, 12 /* clobber */, implicit-def dead early-clobber $x12, 12 /* clobber */, implicit-def dead early-clobber $x13, 12 /* clobber */, implicit-def dead early-clobber $x14, 12 /* clobber */, implicit-def dead early-clobber $x15, 12 /* clobber */, implicit-def dead early-clobber $x16, 12 /* clobber */, implicit-def dead early-clobber $x17, 12 /* clobber */, implicit-def dead early-clobber $x18, 12 /* clobber */, implicit-def dead early-clobber $x19, 12 /* clobber */, implicit-def dead early-clobber $x20, 12 /* clobber */, implicit-def dead early-clobber $x21, 12 /* clobber */, implicit-def dead early-clobber $x22, 12 /* clobber */, implicit-def dead early-clobber $x23, 12 /* clobber */, implicit-def dead early-clobber $x24, 12 /* clobber */, implicit-def dead early-clobber $x25, 12 /* clobber */, implicit-def dead early-clobber $x26, 12 /* clobber */, implicit-def dead early-clobber $x27, 12 /* clobber */, implicit-def dead early-clobber $x28, 12 /* clobber */, implicit-def dead early-clobber $fp, 12 /* clobber */, implicit-def dead early-clobber $lr
; CHECK-NEXT: renamable $x2 = LDRXui %stack.0, 0 :: (load (s64) from %stack.0)
; CHECK-NEXT: renamable $x12 = LDRXui %stack.4, 0 :: (load (s64) from %stack.4)
; CHECK-NEXT: STRWroX killed renamable $w1, renamable $x2, renamable $x12, 0, 1 :: (volatile store (s32) into %ir.sunkaddr1)
; CHECK-NEXT: renamable $w11 = LDRWui %stack.2, 0 :: (load (s32) from %stack.2)
; CHECK-NEXT: renamable $w10 = LDRWui %stack.3, 0 :: (load (s32) from %stack.3)
; CHECK-NEXT: B %bb.8
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.7.for.body:
; CHECK-NEXT: successors: %bb.6(0x04000000), %bb.7(0x7c000000)
; CHECK-NEXT: liveins: $w19, $w20
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
; CHECK-NEXT: BL @callee, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $w0
; CHECK-NEXT: ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
; CHECK-NEXT: renamable $w19 = nsw SUBSWri killed renamable $w19, 1, 0, implicit-def $nzcv
; CHECK-NEXT: renamable $w20 = nsw ADDWrr killed renamable $w0, killed renamable $w20
; CHECK-NEXT: Bcc 0, %bb.6, implicit $nzcv
; CHECK-NEXT: B %bb.7
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.8.if.end:
; CHECK-NEXT: successors: %bb.9(0x04000000), %bb.4(0x7c000000)
; CHECK-NEXT: liveins: $w10, $w11, $x2, $x12
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w10 = nsw SUBSWri killed renamable $w10, 1, 0, implicit-def $nzcv
; CHECK-NEXT: renamable $x12 = nuw nsw ADDXri killed renamable $x12, 1, 0
; CHECK-NEXT: Bcc 1, %bb.4, implicit $nzcv
; CHECK-NEXT: B %bb.9
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.9.do.end:
; CHECK-NEXT: successors: %bb.10(0x80000000)
; CHECK-NEXT: liveins: $w11, $x2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w10 = COPY $wzr
; CHECK-NEXT: renamable $x8 = LDRXui %stack.1, 0 :: (load (s64) from %stack.1)
; CHECK-NEXT: STRWroX $wzr, renamable $x2, renamable $x8, 0, 1 :: (volatile store (s32) into %ir.arrayidx26)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.10.if.end27:
; CHECK-NEXT: successors: %bb.11(0x04000000), %bb.1(0x7c000000)
; CHECK-NEXT: liveins: $w10, $w11, $x2, $x8
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w11 = nsw SUBSWri killed renamable $w11, 1, 0, implicit-def $nzcv
; CHECK-NEXT: renamable $x8 = nuw nsw ADDXri killed renamable $x8, 1, 0
; CHECK-NEXT: Bcc 1, %bb.1, implicit $nzcv
; CHECK-NEXT: B %bb.11
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.11.do.end32:
; CHECK-NEXT: RET_ReallyLR
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $x0, $x2
%19:gpr64common = COPY $x2
%17:gpr64common = COPY $x0
%54:gpr64common = COPY $xzr
%21:gpr32common = LDRWui %17, 0 :: (load (s32) from %ir.p)
%24:gpr32common = LDRWui %17, 1 :: (load (s32) from %ir.arrayidx2)
dead $wzr = SUBSWri %21, 1, 0, implicit-def $nzcv
%55:gpr32common = CSINCWr %21, $wzr, 12, implicit $nzcv
dead $wzr = SUBSWri %24, 1, 0, implicit-def $nzcv
%56:gpr32common = CSINCWr %24, $wzr, 12, implicit $nzcv
undef %29.sub_32:gpr64 = MOVi32imm 36
%31:gpr64common = MOVaddr target-flags(aarch64-page) @g, target-flags(aarch64-pageoff, aarch64-nc) @g
bb.1.do.body:
successors: %bb.2(0x50000000), %bb.11(0x30000000)
%30:gpr64 = MADDXrrr %54, %29, $xzr
%32:gpr32common = LDRWroX %31, %30, 0, 0 :: (load (s32) from %ir.arrayidx9)
dead $wzr = SUBSWri %32, 1, 0, implicit-def $nzcv
Bcc 10, %bb.2, implicit $nzcv
bb.11:
successors: %bb.9(0x80000000)
B %bb.9
bb.2.do.body12.preheader:
successors: %bb.3(0x80000000)
%57:gpr64common = COPY $xzr
bb.3.do.body12:
successors: %bb.4(0x50000000), %bb.7(0x30000000)
%38:gpr64 = MADDXrrr %57, %29, $xzr
%40:gpr32common = LDRWroX %31, %38, 0, 0 :: (load (s32) from %ir.arrayidx14)
dead $wzr = SUBSWri %40, 1, 0, implicit-def $nzcv
Bcc 11, %bb.7, implicit $nzcv
B %bb.4
bb.4.if.then17:
successors: %bb.6(0x80000000)
%60:gpr32 = LDRWroX %19, %57, 0, 1 :: (volatile load (s32) from %ir.arrayidx19)
%59:gpr32common = MOVi32imm 100
B %bb.6
bb.5.for.cond.cleanup:
successors: %bb.7(0x80000000)
INLINEASM &"nop;nop", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $x0, 12 /* clobber */, implicit-def dead early-clobber $x2, 12 /* clobber */, implicit-def dead early-clobber $x3, 12 /* clobber */, implicit-def dead early-clobber $x4, 12 /* clobber */, implicit-def dead early-clobber $x5, 12 /* clobber */, implicit-def dead early-clobber $x6, 12 /* clobber */, implicit-def dead early-clobber $x7, 12 /* clobber */, implicit-def dead early-clobber $x8, 12 /* clobber */, implicit-def dead early-clobber $x9, 12 /* clobber */, implicit-def dead early-clobber $x10, 12 /* clobber */, implicit-def dead early-clobber $x11, 12 /* clobber */, implicit-def dead early-clobber $x12, 12 /* clobber */, implicit-def dead early-clobber $x13, 12 /* clobber */, implicit-def dead early-clobber $x14, 12 /* clobber */, implicit-def dead early-clobber $x15, 12 /* clobber */, implicit-def dead early-clobber $x16, 12 /* clobber */, implicit-def dead early-clobber $x17, 12 /* clobber */, implicit-def dead early-clobber $x18, 12 /* clobber */, implicit-def dead early-clobber $x19, 12 /* clobber */, implicit-def dead early-clobber $x20, 12 /* clobber */, implicit-def dead early-clobber $x21, 12 /* clobber */, implicit-def dead early-clobber $x22, 12 /* clobber */, implicit-def dead early-clobber $x23, 12 /* clobber */, implicit-def dead early-clobber $x24, 12 /* clobber */, implicit-def dead early-clobber $x25, 12 /* clobber */, implicit-def dead early-clobber $x26, 12 /* clobber */, implicit-def dead early-clobber $x27, 12 /* clobber */, implicit-def dead early-clobber $x28, 12 /* clobber */, implicit-def dead early-clobber $fp, 12 /* clobber */, implicit-def dead early-clobber $lr
STRWroX %60, %19, %57, 0, 1 :: (volatile store (s32) into %ir.sunkaddr1)
B %bb.7
bb.6.for.body:
successors: %bb.5(0x04000000), %bb.6(0x7c000000)
ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
BL @callee, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $w0
ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
%45:gpr32 = COPY $w0
%59:gpr32common = nsw SUBSWri %59, 1, 0, implicit-def $nzcv
%60:gpr32 = nsw ADDWrr %45, %60
Bcc 0, %bb.5, implicit $nzcv
B %bb.6
bb.7.if.end:
successors: %bb.8(0x04000000), %bb.3(0x7c000000)
%56:gpr32common = nsw SUBSWri %56, 1, 0, implicit-def $nzcv
%57:gpr64common = nuw nsw ADDXri %57, 1, 0
Bcc 1, %bb.3, implicit $nzcv
B %bb.8
bb.8.do.end:
successors: %bb.9(0x80000000)
%56:gpr32common = COPY $wzr
STRWroX $wzr, %19, %54, 0, 1 :: (volatile store (s32) into %ir.arrayidx26)
bb.9.if.end27:
successors: %bb.10(0x04000000), %bb.1(0x7c000000)
%55:gpr32common = nsw SUBSWri %55, 1, 0, implicit-def $nzcv
%54:gpr64common = nuw nsw ADDXri %54, 1, 0
Bcc 1, %bb.1, implicit $nzcv
B %bb.10
bb.10.do.end32:
RET_ReallyLR
...
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