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llvm-project/llvm/test/CodeGen/Hexagon/hwloop-dist-check.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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# RUN: llc --mtriple=hexagon -run-pass=hwloops %s -o - | FileCheck %s
# CHECK-LABEL: name: f
# CHECK: [[R1:%[0-9]+]]:predregs = C2_cmpgti [[R0:%[0-9]+]], 0
# CHECK: [[R3:%[0-9]+]]:intregs = C2_muxir [[R1:%[0-9]+]], [[R2:%[0-9]+]], 1
# CHECK-LABEL: name: g
# CHECK: [[R1:%[0-9]+]]:predregs = C2_cmpgti [[R0:%[0-9]+]], 0
# CHECK: [[R3:%[0-9]+]]:intregs = C2_muxir [[R1:%[0-9]+]], [[R2:%[0-9]+]], 1
--- |
@a = dso_local global [255 x ptr] zeroinitializer, align 8
; Function Attrs: minsize nofree norecurse nosync nounwind optsize memory(write, argmem: none, inaccessiblemem: none)
define dso_local void @f(i32 noundef %m) local_unnamed_addr #0 {
entry:
%cond = tail call i32 @llvm.smax.i32(i32 %m, i32 2)
%0 = add nsw i32 %cond, -4
%1 = shl i32 %cond, 3
%cgep = getelementptr i8, ptr @a, i32 %1
%cgep36 = bitcast ptr @a to ptr
br label %do.body
do.body: ; preds = %do.body, %entry
%lsr.iv1 = phi ptr [ %cgep4, %do.body ], [ %cgep, %entry ]
%lsr.iv = phi i32 [ %lsr.iv.next, %do.body ], [ %0, %entry ]
%sh.0 = phi i32 [ 256, %entry ], [ %shr, %do.body ]
%shr = lshr i32 %sh.0, 1
%cgep5 = getelementptr inbounds [255 x ptr], ptr %cgep36, i32 0, i32 %shr
store ptr %lsr.iv1, ptr %cgep5, align 4, !tbaa !5
%lsr.iv.next = add nsw i32 %lsr.iv, 4
%cmp1 = icmp samesign ult i32 %lsr.iv.next, 1073741836
%cgep4 = getelementptr i8, ptr %lsr.iv1, i32 32
br i1 %cmp1, label %do.body, label %do.end, !llvm.loop !9
do.end: ; preds = %do.body
ret void
}
; Function Attrs: minsize nofree norecurse nosync nounwind optsize memory(write, argmem: none, inaccessiblemem: none)
define dso_local void @g(i32 noundef %m) local_unnamed_addr #0 {
entry:
%0 = add i32 %m, -4
%1 = shl i32 %m, 3
%cgep = getelementptr i8, ptr @a, i32 %1
%cgep36 = bitcast ptr @a to ptr
br label %do.body
do.body: ; preds = %do.body, %entry
%lsr.iv1 = phi ptr [ %cgep4, %do.body ], [ %cgep, %entry ]
%lsr.iv = phi i32 [ %lsr.iv.next, %do.body ], [ %0, %entry ]
%sh.0 = phi i32 [ 256, %entry ], [ %shr, %do.body ]
%shr = lshr i32 %sh.0, 1
%cgep5 = getelementptr inbounds [255 x ptr], ptr %cgep36, i32 0, i32 %shr
store ptr %lsr.iv1, ptr %cgep5, align 4, !tbaa !5
%lsr.iv.next = add i32 %lsr.iv, 4
%cmp = icmp slt i32 %lsr.iv.next, 1073741836
%cgep4 = getelementptr i8, ptr %lsr.iv1, i32 32
br i1 %cmp, label %do.body, label %do.end, !llvm.loop !11
do.end: ; preds = %do.body
ret void
}
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #1
!llvm.module.flags = !{!0, !1, !2, !3}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"frame-pointer", i32 2}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
...
---
name: f
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
noPhis: false
isSSA: true
noVRegs: false
hasFakeUses: false
callsEHReturn: false
callsUnwindInit: false
hasEHScopes: false
hasEHFunclets: false
isOutlined: false
debugInstrRef: false
failsVerification: false
tracksDebugUserValues: false
registers:
- { id: 0, class: intregs, preferred-register: '', flags: [ ] }
- { id: 1, class: intregs, preferred-register: '', flags: [ ] }
- { id: 2, class: intregs, preferred-register: '', flags: [ ] }
- { id: 3, class: intregs, preferred-register: '', flags: [ ] }
- { id: 4, class: intregs, preferred-register: '', flags: [ ] }
- { id: 5, class: intregs, preferred-register: '', flags: [ ] }
- { id: 6, class: intregs, preferred-register: '', flags: [ ] }
- { id: 7, class: intregs, preferred-register: '', flags: [ ] }
- { id: 8, class: intregs, preferred-register: '', flags: [ ] }
- { id: 9, class: intregs, preferred-register: '', flags: [ ] }
- { id: 10, class: intregs, preferred-register: '', flags: [ ] }
- { id: 11, class: intregs, preferred-register: '', flags: [ ] }
- { id: 12, class: intregs, preferred-register: '', flags: [ ] }
- { id: 13, class: predregs, preferred-register: '', flags: [ ] }
- { id: 14, class: predregs, preferred-register: '', flags: [ ] }
- { id: 15, class: intregs, preferred-register: '', flags: [ ] }
liveins:
- { reg: '$r0', virtual-reg: '%9' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: false
hasCalls: false
stackProtector: ''
functionContext: ''
maxCallFrameSize: 4294967295
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: false
isCalleeSavedInfoValid: false
localFrameSize: 0
savePoint: []
restorePoint: []
fixedStack: []
stack: []
entry_values: []
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo: {}
body: |
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $r0
%9:intregs = COPY $r0
%11:intregs = A2_tfrsi 2
%12:intregs = A2_max %9, %11
%0:intregs = nsw A2_addi %12, -4
%1:intregs = S4_addi_asl_ri @a, %12, 3
%2:intregs = A2_tfrsi @a
%10:intregs = A2_tfrsi 256
bb.1.do.body:
successors: %bb.1(0x7c000000), %bb.2(0x04000000)
%3:intregs = PHI %1, %bb.0, %8, %bb.1
%4:intregs = PHI %0, %bb.0, %7, %bb.1
%5:intregs = PHI %10, %bb.0, %15, %bb.1
%15:intregs = S2_extractu %5, 8, 1
S4_storeri_rr %2, %15, 2, %3 :: (store (s32) into %ir.cgep5, !tbaa !5)
%7:intregs = nsw A2_addi %4, 4
%13:predregs = C2_cmpgtui %7, 1073741835
%8:intregs = A2_addi %3, 32
J2_jumpf %13, %bb.1, implicit-def dead $pc
J2_jump %bb.2, implicit-def dead $pc
bb.2.do.end:
PS_jmpret $r31, implicit-def dead $pc
...
---
name: g
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
noPhis: false
isSSA: true
noVRegs: false
hasFakeUses: false
callsEHReturn: false
callsUnwindInit: false
hasEHScopes: false
hasEHFunclets: false
isOutlined: false
debugInstrRef: false
failsVerification: false
tracksDebugUserValues: false
registers:
- { id: 0, class: intregs, preferred-register: '', flags: [ ] }
- { id: 1, class: intregs, preferred-register: '', flags: [ ] }
- { id: 2, class: intregs, preferred-register: '', flags: [ ] }
- { id: 3, class: intregs, preferred-register: '', flags: [ ] }
- { id: 4, class: intregs, preferred-register: '', flags: [ ] }
- { id: 5, class: intregs, preferred-register: '', flags: [ ] }
- { id: 6, class: intregs, preferred-register: '', flags: [ ] }
- { id: 7, class: intregs, preferred-register: '', flags: [ ] }
- { id: 8, class: intregs, preferred-register: '', flags: [ ] }
- { id: 9, class: intregs, preferred-register: '', flags: [ ] }
- { id: 10, class: intregs, preferred-register: '', flags: [ ] }
- { id: 11, class: predregs, preferred-register: '', flags: [ ] }
- { id: 12, class: predregs, preferred-register: '', flags: [ ] }
- { id: 13, class: intregs, preferred-register: '', flags: [ ] }
liveins:
- { reg: '$r0', virtual-reg: '%9' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: false
hasCalls: false
stackProtector: ''
functionContext: ''
maxCallFrameSize: 4294967295
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: false
isCalleeSavedInfoValid: false
localFrameSize: 0
savePoint: []
restorePoint: []
fixedStack: []
stack: []
entry_values: []
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo: {}
body: |
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $r0
%9:intregs = COPY $r0
%0:intregs = A2_addi %9, -4
%1:intregs = S4_addi_asl_ri @a, %9, 3
%2:intregs = A2_tfrsi @a
%10:intregs = A2_tfrsi 256
bb.1.do.body:
successors: %bb.1(0x7c000000), %bb.2(0x04000000)
%3:intregs = PHI %1, %bb.0, %8, %bb.1
%4:intregs = PHI %0, %bb.0, %7, %bb.1
%5:intregs = PHI %10, %bb.0, %13, %bb.1
%13:intregs = S2_extractu %5, 8, 1
S4_storeri_rr %2, %13, 2, %3 :: (store (s32) into %ir.cgep5, !tbaa !5)
%7:intregs = A2_addi %4, 4
%11:predregs = C2_cmpgti %7, 1073741835
%8:intregs = A2_addi %3, 32
J2_jumpf %11, %bb.1, implicit-def dead $pc
J2_jump %bb.2, implicit-def dead $pc
bb.2.do.end:
PS_jmpret $r31, implicit-def dead $pc
...
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