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[NFC][ARM] Add tests

This commit is contained in:
Sam Parker 2020-02-28 11:22:09 +00:00
parent 68730495b8
commit 48cb6ea724
2 changed files with 616 additions and 0 deletions

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@ -0,0 +1,456 @@
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - | FileCheck %s
--- |
define dso_local arm_aapcs_vfpcc void @multi_cond_iter_count(i32* nocapture %0, i32* nocapture readonly %1, i32 %2, i32 %3) local_unnamed_addr #0 {
%5 = icmp eq i32 %3, 2
%6 = select i1 %5, i32 2, i32 4
%7 = icmp eq i32 %3, 4
%8 = select i1 %7, i32 1, i32 %6
%9 = shl i32 %2, %8
%10 = icmp eq i32 %9, 0
br i1 %10, label %64, label %11
11: ; preds = %4
%12 = getelementptr i32, i32* %0, i32 %9
%13 = getelementptr i32, i32* %1, i32 %9
%14 = icmp ugt i32* %13, %0
%15 = icmp ugt i32* %12, %1
%16 = and i1 %14, %15
%17 = add i32 %9, 3
%18 = lshr i32 %17, 2
%19 = shl nuw i32 %18, 2
%20 = add i32 %19, -4
%21 = lshr i32 %20, 2
%22 = add nuw nsw i32 %21, 1
br i1 %16, label %23, label %32
23: ; preds = %11
%24 = add i32 %9, -1
%25 = and i32 %9, 2
%26 = icmp ult i32 %24, 3
%27 = add i32 %9, -4
%28 = sub i32 %27, %25
%29 = lshr i32 %28, 2
%30 = add nuw nsw i32 %29, 1
br i1 %26, label %49, label %31
31: ; preds = %23
call void @llvm.set.loop.iterations.i32(i32 %30)
br label %65
32: ; preds = %11
call void @llvm.set.loop.iterations.i32(i32 %22)
br label %33
33: ; preds = %33, %32
%34 = phi i32* [ %46, %33 ], [ %0, %32 ]
%35 = phi i32* [ %45, %33 ], [ %1, %32 ]
%36 = phi i32 [ %22, %32 ], [ %47, %33 ]
%37 = phi i32 [ %9, %32 ], [ %41, %33 ]
%38 = bitcast i32* %34 to <4 x i32>*
%39 = bitcast i32* %35 to <4 x i32>*
%40 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %37)
%41 = sub i32 %37, 4
%42 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %39, i32 4, <4 x i1> %40, <4 x i32> undef)
%43 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %38, i32 4, <4 x i1> %40, <4 x i32> undef)
%44 = mul nsw <4 x i32> %43, %42
call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %44, <4 x i32>* %38, i32 4, <4 x i1> %40)
%45 = getelementptr i32, i32* %35, i32 4
%46 = getelementptr i32, i32* %34, i32 4
%47 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %36, i32 1)
%48 = icmp ne i32 %47, 0
br i1 %48, label %33, label %64
49: ; preds = %65, %23
%50 = phi i32 [ 0, %23 ], [ %107, %65 ]
%51 = icmp eq i32 %25, 0
br i1 %51, label %64, label %52
52: ; preds = %49
%53 = getelementptr inbounds i32, i32* %1, i32 %50
%54 = load i32, i32* %53, align 4
%55 = getelementptr inbounds i32, i32* %0, i32 %50
%56 = load i32, i32* %55, align 4
%57 = mul nsw i32 %56, %54
store i32 %57, i32* %55, align 4
%58 = add nuw i32 %50, 1
%59 = getelementptr inbounds i32, i32* %1, i32 %58
%60 = load i32, i32* %59, align 4
%61 = getelementptr inbounds i32, i32* %0, i32 %58
%62 = load i32, i32* %61, align 4
%63 = mul nsw i32 %62, %60
store i32 %63, i32* %61, align 4
br label %64
64: ; preds = %33, %52, %49, %4
ret void
65: ; preds = %65, %31
%66 = phi i32 [ %108, %65 ], [ 0, %31 ]
%67 = phi i32 [ 0, %31 ], [ %107, %65 ]
%68 = phi i32 [ %30, %31 ], [ %109, %65 ]
%69 = bitcast i32* %0 to i8*
%70 = bitcast i32* %1 to i8*
%71 = getelementptr i8, i8* %70, i32 %66
%72 = bitcast i8* %71 to i32*
%73 = bitcast i32* %72 to i32*
%74 = load i32, i32* %73, align 4
%75 = getelementptr i8, i8* %69, i32 %66
%76 = bitcast i8* %75 to i32*
%77 = bitcast i32* %76 to i32*
%78 = load i32, i32* %77, align 4
%79 = mul nsw i32 %78, %74
store i32 %79, i32* %77, align 4
%80 = getelementptr i8, i8* %70, i32 %66
%81 = bitcast i8* %80 to i32*
%82 = getelementptr i32, i32* %81, i32 1
%83 = load i32, i32* %82, align 4
%84 = getelementptr i8, i8* %69, i32 %66
%85 = bitcast i8* %84 to i32*
%86 = getelementptr i32, i32* %85, i32 1
%87 = load i32, i32* %86, align 4
%88 = mul nsw i32 %87, %83
store i32 %88, i32* %86, align 4
%89 = getelementptr i8, i8* %70, i32 %66
%90 = bitcast i8* %89 to i32*
%91 = getelementptr i32, i32* %90, i32 2
%92 = load i32, i32* %91, align 4
%93 = getelementptr i8, i8* %69, i32 %66
%94 = bitcast i8* %93 to i32*
%95 = getelementptr i32, i32* %94, i32 2
%96 = load i32, i32* %95, align 4
%97 = mul nsw i32 %96, %92
store i32 %97, i32* %95, align 4
%98 = getelementptr i8, i8* %70, i32 %66
%99 = bitcast i8* %98 to i32*
%100 = getelementptr i32, i32* %99, i32 3
%101 = load i32, i32* %100, align 4
%102 = getelementptr i8, i8* %69, i32 %66
%103 = bitcast i8* %102 to i32*
%104 = getelementptr i32, i32* %103, i32 3
%105 = load i32, i32* %104, align 4
%106 = mul nsw i32 %105, %101
store i32 %106, i32* %104, align 4
%107 = add nuw i32 %67, 4
%108 = add i32 %66, 16
%109 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %68, i32 1)
%110 = icmp ne i32 %109, 0
br i1 %110, label %65, label %49
}
declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>) #1
declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>) #2
declare void @llvm.set.loop.iterations.i32(i32) #3
declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32) #3
declare <4 x i1> @llvm.arm.mve.vctp32(i32) #4
...
---
name: multi_cond_iter_count
alignment: 2
tracksRegLiveness: true
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
- { reg: '$r1', virtual-reg: '' }
- { reg: '$r2', virtual-reg: '' }
- { reg: '$r3', virtual-reg: '' }
frameInfo:
stackSize: 32
offsetAdjustment: -24
maxAlignment: 4
fixedStack: []
stack:
- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 2, name: '', type: spill-slot, offset: -12, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r6', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 3, name: '', type: spill-slot, offset: -16, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r5', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 4, name: '', type: spill-slot, offset: -20, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 5, name: '', type: spill-slot, offset: -24, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r10', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 6, name: '', type: spill-slot, offset: -28, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r9', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 7, name: '', type: spill-slot, offset: -32, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r8', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: multi_cond_iter_count
; CHECK: bb.0 (%ir-block.4):
; CHECK: successors: %bb.4(0x30000000), %bb.1(0x50000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r8, $r9, $r10
; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $r5, killed $r6, killed $lr, implicit-def $sp, implicit $sp
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 20
; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -8
; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -12
; CHECK: frame-setup CFI_INSTRUCTION offset $r5, -16
; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -20
; CHECK: dead $r7 = frame-setup tADDrSPi $sp, 3, 14 /* CC::al */, $noreg
; CHECK: frame-setup CFI_INSTRUCTION def_cfa $r7, 8
; CHECK: $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r8, killed $r9, killed $r10
; CHECK: frame-setup CFI_INSTRUCTION offset $r10, -24
; CHECK: frame-setup CFI_INSTRUCTION offset $r9, -28
; CHECK: frame-setup CFI_INSTRUCTION offset $r8, -32
; CHECK: tCMPi8 renamable $r3, 2, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: $r12 = tMOVr $r3, 14 /* CC::al */, $noreg
; CHECK: t2IT 1, 8, implicit-def $itstate
; CHECK: $r12 = t2MOVi 4, 1 /* CC::ne */, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
; CHECK: tCMPi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2IT 0, 8, implicit-def $itstate
; CHECK: $r12 = t2MOVi 1, 0 /* CC::eq */, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
; CHECK: renamable $r3 = t2LSLrr killed renamable $r2, killed renamable $r12, 14 /* CC::al */, $noreg, def $cpsr
; CHECK: tBcc %bb.4, 0 /* CC::eq */, killed $cpsr
; CHECK: bb.1 (%ir-block.11):
; CHECK: successors: %bb.2(0x55555555), %bb.5(0x2aaaaaab)
; CHECK: liveins: $r0, $r1, $r3
; CHECK: renamable $r2 = t2ADDrs renamable $r1, renamable $r3, 18, 14 /* CC::al */, $noreg, $noreg
; CHECK: tCMPr killed renamable $r2, renamable $r0, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2IT 8, 4, implicit-def $itstate
; CHECK: renamable $r2 = t2ADDrs renamable $r0, renamable $r3, 18, 8 /* CC::hi */, $cpsr, $noreg, implicit $itstate
; CHECK: tCMPr killed renamable $r2, renamable $r1, 8 /* CC::hi */, killed $cpsr, implicit-def $cpsr, implicit killed $itstate
; CHECK: tBcc %bb.5, 8 /* CC::hi */, killed $cpsr
; CHECK: bb.2 (%ir-block.32):
; CHECK: successors: %bb.3(0x80000000)
; CHECK: liveins: $r0, $r1, $r3
; CHECK: $r2 = tMOVr $r0, 14 /* CC::al */, $noreg
; CHECK: $lr = MVE_DLSTP_32 killed renamable $r3
; CHECK: bb.3 (%ir-block.33):
; CHECK: successors: %bb.3(0x7c000000), %bb.4(0x04000000)
; CHECK: liveins: $lr, $r0, $r1, $r2
; CHECK: renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 0, $noreg
; CHECK: renamable $r2, renamable $q1 = MVE_VLDRWU32_post killed renamable $r2, 16, 0, $noreg
; CHECK: renamable $q0 = nsw MVE_VMULi32 killed renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0
; CHECK: MVE_VSTRWU32 killed renamable $q0, killed renamable $r0, 0, 0, killed $noreg
; CHECK: $r0 = tMOVr $r2, 14 /* CC::al */, $noreg
; CHECK: $lr = MVE_LETP killed renamable $lr, %bb.3
; CHECK: bb.4 (%ir-block.64):
; CHECK: $sp = t2LDMIA_UPD $sp, 14 /* CC::al */, $noreg, def $r8, def $r9, def $r10
; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $pc
; CHECK: bb.5 (%ir-block.23):
; CHECK: successors: %bb.6(0x40000000), %bb.7(0x40000000)
; CHECK: liveins: $r0, $r1, $r3
; CHECK: renamable $r2, dead $cpsr = tSUBi3 renamable $r3, 1, 14 /* CC::al */, $noreg
; CHECK: renamable $r12 = t2ANDri renamable $r3, 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: tCMPi8 killed renamable $r2, 3, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: tBcc %bb.7, 2 /* CC::hs */, killed $cpsr
; CHECK: bb.6:
; CHECK: successors: %bb.9(0x80000000)
; CHECK: liveins: $r0, $r1, $r12
; CHECK: renamable $r3, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
; CHECK: tB %bb.9, 14 /* CC::al */, $noreg
; CHECK: bb.7 (%ir-block.31):
; CHECK: successors: %bb.8(0x80000000)
; CHECK: liveins: $r0, $r1, $r3, $r12
; CHECK: renamable $r2 = t2BICri killed renamable $r3, 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
; CHECK: renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14 /* CC::al */, $noreg
; CHECK: renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $r2, 19, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r2, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
; CHECK: renamable $r3, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
; CHECK: $lr = t2DLS killed renamable $lr
; CHECK: bb.8 (%ir-block.65):
; CHECK: successors: %bb.8(0x7c000000), %bb.9(0x04000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3, $r12
; CHECK: renamable $r4 = tLDRr renamable $r1, $r2, 14 /* CC::al */, $noreg
; CHECK: renamable $r3, dead $cpsr = nuw tADDi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg
; CHECK: renamable $r5 = tLDRr renamable $r0, $r2, 14 /* CC::al */, $noreg
; CHECK: renamable $r4, dead $cpsr = nsw tMUL killed renamable $r5, killed renamable $r4, 14 /* CC::al */, $noreg
; CHECK: renamable $r5, dead $cpsr = tADDrr renamable $r0, renamable $r2, 14 /* CC::al */, $noreg
; CHECK: $r10, $r8 = t2LDRDi8 $r5, 4, 14 /* CC::al */, $noreg
; CHECK: renamable $r9 = t2LDRi12 renamable $r5, 12, 14 /* CC::al */, $noreg
; CHECK: tSTRr killed renamable $r4, renamable $r0, $r2, 14 /* CC::al */, $noreg
; CHECK: renamable $r4, dead $cpsr = tADDrr renamable $r1, renamable $r2, 14 /* CC::al */, $noreg
; CHECK: renamable $r2, dead $cpsr = tADDi8 killed renamable $r2, 16, 14 /* CC::al */, $noreg
; CHECK: renamable $r6 = tLDRi renamable $r4, 1, 14 /* CC::al */, $noreg
; CHECK: renamable $r6 = nsw t2MUL killed renamable $r10, killed renamable $r6, 14 /* CC::al */, $noreg
; CHECK: tSTRi killed renamable $r6, renamable $r5, 1, 14 /* CC::al */, $noreg
; CHECK: renamable $r6 = tLDRi renamable $r4, 2, 14 /* CC::al */, $noreg
; CHECK: renamable $r6 = nsw t2MUL killed renamable $r8, killed renamable $r6, 14 /* CC::al */, $noreg
; CHECK: tSTRi killed renamable $r6, renamable $r5, 2, 14 /* CC::al */, $noreg
; CHECK: renamable $r4 = tLDRi killed renamable $r4, 3, 14 /* CC::al */, $noreg
; CHECK: renamable $r4 = nsw t2MUL killed renamable $r9, killed renamable $r4, 14 /* CC::al */, $noreg
; CHECK: tSTRi killed renamable $r4, killed renamable $r5, 3, 14 /* CC::al */, $noreg
; CHECK: $lr = t2LEUpdate killed renamable $lr, %bb.8
; CHECK: bb.9 (%ir-block.49):
; CHECK: successors: %bb.4(0x40000000), %bb.10(0x40000000)
; CHECK: liveins: $r0, $r1, $r3, $r12
; CHECK: t2CMPri killed renamable $r12, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: tBcc %bb.4, 0 /* CC::eq */, killed $cpsr
; CHECK: bb.10 (%ir-block.52):
; CHECK: liveins: $r0, $r1, $r3
; CHECK: renamable $r12 = t2LDRs renamable $r1, renamable $r3, 2, 14 /* CC::al */, $noreg
; CHECK: renamable $r2 = t2LDRs renamable $r0, renamable $r3, 2, 14 /* CC::al */, $noreg
; CHECK: renamable $r12 = nsw t2MUL killed renamable $r2, killed renamable $r12, 14 /* CC::al */, $noreg
; CHECK: renamable $r2, dead $cpsr = tADDi3 renamable $r3, 1, 14 /* CC::al */, $noreg
; CHECK: renamable $lr = t2LDRs renamable $r0, renamable $r2, 2, 14 /* CC::al */, $noreg
; CHECK: t2STRs killed renamable $r12, renamable $r0, killed renamable $r3, 2, 14 /* CC::al */, $noreg
; CHECK: renamable $r1 = t2LDRs killed renamable $r1, renamable $r2, 2, 14 /* CC::al */, $noreg
; CHECK: renamable $r1 = nsw t2MUL killed renamable $lr, killed renamable $r1, 14 /* CC::al */, $noreg
; CHECK: t2STRs killed renamable $r1, killed renamable $r0, killed renamable $r2, 2, 14 /* CC::al */, $noreg
; CHECK: $sp = t2LDMIA_UPD $sp, 14 /* CC::al */, $noreg, def $r8, def $r9, def $r10
; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $pc
bb.0 (%ir-block.4):
successors: %bb.4(0x30000000), %bb.1(0x50000000)
liveins: $r0, $r1, $r2, $r3, $r4, $r5, $r6, $lr, $r8, $r9, $r10
frame-setup tPUSH 14, $noreg, killed $r4, killed $r5, killed $r6, killed $lr, implicit-def $sp, implicit $sp
frame-setup CFI_INSTRUCTION def_cfa_offset 20
frame-setup CFI_INSTRUCTION offset $lr, -4
frame-setup CFI_INSTRUCTION offset $r7, -8
frame-setup CFI_INSTRUCTION offset $r6, -12
frame-setup CFI_INSTRUCTION offset $r5, -16
frame-setup CFI_INSTRUCTION offset $r4, -20
$r7 = frame-setup tADDrSPi $sp, 3, 14, $noreg
frame-setup CFI_INSTRUCTION def_cfa $r7, 8
$sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r8, killed $r9, killed $r10
frame-setup CFI_INSTRUCTION offset $r10, -24
frame-setup CFI_INSTRUCTION offset $r9, -28
frame-setup CFI_INSTRUCTION offset $r8, -32
tCMPi8 renamable $r3, 2, 14, $noreg, implicit-def $cpsr
$r12 = tMOVr $r3, 14, $noreg
t2IT 1, 8, implicit-def $itstate
$r12 = t2MOVi 4, 1, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
tCMPi8 killed renamable $r3, 4, 14, $noreg, implicit-def $cpsr
t2IT 0, 8, implicit-def $itstate
$r12 = t2MOVi 1, 0, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
renamable $r3 = t2LSLrr killed renamable $r2, killed renamable $r12, 14, $noreg, def $cpsr
tBcc %bb.4, 0, killed $cpsr
bb.1 (%ir-block.11):
successors: %bb.2(0x80000000), %bb.5(0x40000000)
liveins: $r0, $r1, $r3
renamable $r2 = t2ADDrs renamable $r1, renamable $r3, 18, 14, $noreg, $noreg
tCMPr killed renamable $r2, renamable $r0, 14, $noreg, implicit-def $cpsr
t2IT 8, 4, implicit-def $itstate
renamable $r2 = t2ADDrs renamable $r0, renamable $r3, 18, 8, $cpsr, $noreg, implicit $itstate
tCMPr killed renamable $r2, renamable $r1, 8, killed $cpsr, implicit-def $cpsr, implicit killed $itstate
tBcc %bb.5, 8, killed $cpsr
bb.2 (%ir-block.32):
successors: %bb.3(0x80000000)
liveins: $r0, $r1, $r3
renamable $r2, dead $cpsr = tADDi3 renamable $r3, 3, 14, $noreg
renamable $r2 = t2BICri killed renamable $r2, 3, 14, $noreg, $noreg
renamable $r12 = t2SUBri killed renamable $r2, 4, 14, $noreg, $noreg
renamable $r2, dead $cpsr = tMOVi8 1, 14, $noreg
renamable $lr = nuw nsw t2ADDrs killed renamable $r2, killed renamable $r12, 19, 14, $noreg, $noreg
$r2 = tMOVr $r0, 14, $noreg
t2DoLoopStart renamable $lr
bb.3 (%ir-block.33):
successors: %bb.3(0x7c000000), %bb.4(0x04000000)
liveins: $lr, $r0, $r1, $r2, $r3
renamable $vpr = MVE_VCTP32 renamable $r3, 0, $noreg
MVE_VPST 4, implicit $vpr
renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr
renamable $r2, renamable $q1 = MVE_VLDRWU32_post killed renamable $r2, 16, 1, renamable $vpr
renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14, $noreg
renamable $q0 = nsw MVE_VMULi32 killed renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0
MVE_VPST 8, implicit $vpr
MVE_VSTRWU32 killed renamable $q0, killed renamable $r0, 0, 1, killed renamable $vpr
renamable $lr = t2LoopDec killed renamable $lr, 1
$r0 = tMOVr $r2, 14, $noreg
t2LoopEnd renamable $lr, %bb.3, implicit-def dead $cpsr
tB %bb.4, 14, $noreg
bb.4 (%ir-block.64):
$sp = t2LDMIA_UPD $sp, 14, $noreg, def $r8, def $r9, def $r10
tPOP_RET 14, $noreg, def $r4, def $r5, def $r6, def $r7, def $pc
bb.5 (%ir-block.23):
successors: %bb.6(0x40000000), %bb.7(0x40000000)
liveins: $r0, $r1, $r3
renamable $r2, dead $cpsr = tSUBi3 renamable $r3, 1, 14, $noreg
renamable $r12 = t2ANDri renamable $r3, 2, 14, $noreg, $noreg
tCMPi8 killed renamable $r2, 3, 14, $noreg, implicit-def $cpsr
tBcc %bb.7, 2, killed $cpsr
bb.6:
successors: %bb.9(0x80000000)
liveins: $r0, $r1, $r12
renamable $r3, dead $cpsr = tMOVi8 0, 14, $noreg
tB %bb.9, 14, $noreg
bb.7 (%ir-block.31):
successors: %bb.8(0x80000000)
liveins: $r0, $r1, $r3, $r12
renamable $r2 = t2BICri killed renamable $r3, 2, 14, $noreg, $noreg
renamable $r3, dead $cpsr = tMOVi8 1, 14, $noreg
renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14, $noreg
renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $r2, 19, 14, $noreg, $noreg
renamable $r2, dead $cpsr = tMOVi8 0, 14, $noreg
renamable $r3, dead $cpsr = tMOVi8 0, 14, $noreg
t2DoLoopStart renamable $lr
bb.8 (%ir-block.65):
successors: %bb.8(0x7c000000), %bb.9(0x04000000)
liveins: $lr, $r0, $r1, $r2, $r3, $r12
renamable $r4 = tLDRr renamable $r1, $r2, 14, $noreg
renamable $r3, dead $cpsr = nuw tADDi8 killed renamable $r3, 4, 14, $noreg
renamable $r5 = tLDRr renamable $r0, $r2, 14, $noreg
renamable $lr = t2LoopDec killed renamable $lr, 1
renamable $r4, dead $cpsr = nsw tMUL killed renamable $r5, killed renamable $r4, 14, $noreg
renamable $r5, dead $cpsr = tADDrr renamable $r0, renamable $r2, 14, $noreg
$r10, $r8 = t2LDRDi8 $r5, 4, 14, $noreg
renamable $r9 = t2LDRi12 renamable $r5, 12, 14, $noreg
tSTRr killed renamable $r4, renamable $r0, $r2, 14, $noreg
renamable $r4, dead $cpsr = tADDrr renamable $r1, renamable $r2, 14, $noreg
renamable $r2, dead $cpsr = tADDi8 killed renamable $r2, 16, 14, $noreg
renamable $r6 = tLDRi renamable $r4, 1, 14, $noreg
renamable $r6 = nsw t2MUL killed renamable $r10, killed renamable $r6, 14, $noreg
tSTRi killed renamable $r6, renamable $r5, 1, 14, $noreg
renamable $r6 = tLDRi renamable $r4, 2, 14, $noreg
renamable $r6 = nsw t2MUL killed renamable $r8, killed renamable $r6, 14, $noreg
tSTRi killed renamable $r6, renamable $r5, 2, 14, $noreg
renamable $r4 = tLDRi killed renamable $r4, 3, 14, $noreg
renamable $r4 = nsw t2MUL killed renamable $r9, killed renamable $r4, 14, $noreg
tSTRi killed renamable $r4, killed renamable $r5, 3, 14, $noreg
t2LoopEnd renamable $lr, %bb.8, implicit-def dead $cpsr
tB %bb.9, 14, $noreg
bb.9 (%ir-block.49):
successors: %bb.4(0x40000000), %bb.10(0x40000000)
liveins: $r0, $r1, $r3, $r12
t2CMPri killed renamable $r12, 0, 14, $noreg, implicit-def $cpsr
tBcc %bb.4, 0, killed $cpsr
bb.10 (%ir-block.52):
liveins: $r0, $r1, $r3
renamable $r12 = t2LDRs renamable $r1, renamable $r3, 2, 14, $noreg
renamable $r2 = t2LDRs renamable $r0, renamable $r3, 2, 14, $noreg
renamable $r12 = nsw t2MUL killed renamable $r2, killed renamable $r12, 14, $noreg
renamable $r2, dead $cpsr = tADDi3 renamable $r3, 1, 14, $noreg
renamable $lr = t2LDRs renamable $r0, renamable $r2, 2, 14, $noreg
t2STRs killed renamable $r12, renamable $r0, killed renamable $r3, 2, 14, $noreg
renamable $r1 = t2LDRs killed renamable $r1, renamable $r2, 2, 14, $noreg
renamable $r1 = nsw t2MUL killed renamable $lr, killed renamable $r1, 14, $noreg
t2STRs killed renamable $r1, killed renamable $r0, killed renamable $r2, 2, 14, $noreg
$sp = t2LDMIA_UPD $sp, 14, $noreg, def $r8, def $r9, def $r10
tPOP_RET 14, $noreg, def $r4, def $r5, def $r6, def $r7, def $pc
...

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - | FileCheck %s
--- |
define dso_local arm_aapcs_vfpcc void @multi_cond_iter_count(i32* noalias nocapture %0, i32* nocapture readonly %1, i32 %2, i32 %3) {
%5 = icmp eq i32 %3, 2
%6 = select i1 %5, i32 2, i32 4
%7 = icmp eq i32 %3, 4
%8 = select i1 %7, i32 1, i32 %6
%9 = shl i32 %2, %8
%10 = icmp eq i32 %9, 0
%11 = add i32 %9, 3
%12 = lshr i32 %11, 2
%13 = shl nuw i32 %12, 2
%14 = add i32 %13, -4
%15 = lshr i32 %14, 2
%16 = add nuw nsw i32 %15, 1
br i1 %10, label %34, label %17
17: ; preds = %4
call void @llvm.set.loop.iterations.i32(i32 %16)
br label %18
18: ; preds = %18, %17
%19 = phi i32* [ %31, %18 ], [ %0, %17 ]
%20 = phi i32* [ %30, %18 ], [ %1, %17 ]
%21 = phi i32 [ %16, %17 ], [ %32, %18 ]
%22 = phi i32 [ %9, %17 ], [ %26, %18 ]
%23 = bitcast i32* %19 to <4 x i32>*
%24 = bitcast i32* %20 to <4 x i32>*
%25 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %22)
%26 = sub i32 %22, 4
%27 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %24, i32 4, <4 x i1> %25, <4 x i32> undef)
%28 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %23, i32 4, <4 x i1> %25, <4 x i32> undef)
%29 = mul nsw <4 x i32> %28, %27
call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %29, <4 x i32>* %23, i32 4, <4 x i1> %25)
%30 = getelementptr i32, i32* %20, i32 4
%31 = getelementptr i32, i32* %19, i32 4
%32 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %21, i32 1)
%33 = icmp ne i32 %32, 0
br i1 %33, label %18, label %34
34: ; preds = %18, %4
ret void
}
declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>)
declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>)
declare void @llvm.set.loop.iterations.i32(i32)
declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)
declare <4 x i1> @llvm.arm.mve.vctp32(i32)
...
---
name: multi_cond_iter_count
alignment: 2
tracksRegLiveness: true
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
- { reg: '$r1', virtual-reg: '' }
- { reg: '$r2', virtual-reg: '' }
- { reg: '$r3', virtual-reg: '' }
frameInfo:
stackSize: 8
offsetAdjustment: 0
maxAlignment: 4
fixedStack: []
stack:
- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: multi_cond_iter_count
; CHECK: bb.0 (%ir-block.4):
; CHECK: successors: %bb.1(0x80000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3
; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $lr, implicit-def $sp, implicit $sp
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 8
; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -8
; CHECK: dead $r7 = frame-setup tMOVr $sp, 14 /* CC::al */, $noreg
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_register $r7
; CHECK: tCMPi8 renamable $r3, 2, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: $r12 = tMOVr $r3, 14 /* CC::al */, $noreg
; CHECK: t2IT 1, 8, implicit-def $itstate
; CHECK: $r12 = t2MOVi 4, 1 /* CC::ne */, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
; CHECK: tCMPi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2IT 0, 8, implicit-def $itstate
; CHECK: $r12 = t2MOVi 1, 0 /* CC::eq */, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
; CHECK: renamable $r2 = t2LSLrr killed renamable $r2, killed renamable $r12, 14 /* CC::al */, $noreg, def $cpsr
; CHECK: t2IT 0, 8, implicit-def $itstate
; CHECK: tPOP_RET 0 /* CC::eq */, killed $cpsr, def $r7, def $pc, implicit killed $itstate
; CHECK: $r3 = tMOVr $r0, 14 /* CC::al */, $noreg
; CHECK: $lr = MVE_DLSTP_32 killed renamable $r2
; CHECK: bb.1 (%ir-block.18):
; CHECK: successors: %bb.1(0x7c000000), %bb.2(0x04000000)
; CHECK: liveins: $lr, $r0, $r1, $r3
; CHECK: renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 0, $noreg
; CHECK: renamable $r3, renamable $q1 = MVE_VLDRWU32_post killed renamable $r3, 16, 0, $noreg
; CHECK: renamable $q0 = nsw MVE_VMULi32 killed renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0
; CHECK: MVE_VSTRWU32 killed renamable $q0, killed renamable $r0, 0, 0, killed $noreg
; CHECK: $r0 = tMOVr $r3, 14 /* CC::al */, $noreg
; CHECK: $lr = MVE_LETP killed renamable $lr, %bb.1
; CHECK: bb.2 (%ir-block.34):
; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
bb.0 (%ir-block.4):
successors: %bb.1(0x80000000)
liveins: $r0, $r1, $r2, $r3, $lr
frame-setup tPUSH 14, $noreg, killed $lr, implicit-def $sp, implicit $sp
frame-setup CFI_INSTRUCTION def_cfa_offset 8
frame-setup CFI_INSTRUCTION offset $lr, -4
frame-setup CFI_INSTRUCTION offset $r7, -8
$r7 = frame-setup tMOVr $sp, 14, $noreg
frame-setup CFI_INSTRUCTION def_cfa_register $r7
tCMPi8 renamable $r3, 2, 14, $noreg, implicit-def $cpsr
$r12 = tMOVr $r3, 14, $noreg
t2IT 1, 8, implicit-def $itstate
$r12 = t2MOVi 4, 1, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
tCMPi8 killed renamable $r3, 4, 14, $noreg, implicit-def $cpsr
t2IT 0, 8, implicit-def $itstate
$r12 = t2MOVi 1, 0, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
renamable $r2 = t2LSLrr killed renamable $r2, killed renamable $r12, 14, $noreg, def $cpsr
t2IT 0, 8, implicit-def $itstate
tPOP_RET 0, killed $cpsr, def $r7, def $pc, implicit killed $itstate
renamable $r3, dead $cpsr = tADDi3 renamable $r2, 3, 14, $noreg
renamable $r3 = t2BICri killed renamable $r3, 3, 14, $noreg, $noreg
renamable $r12 = t2SUBri killed renamable $r3, 4, 14, $noreg, $noreg
renamable $r3, dead $cpsr = tMOVi8 1, 14, $noreg
renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $r12, 19, 14, $noreg, $noreg
$r3 = tMOVr $r0, 14, $noreg
t2DoLoopStart renamable $lr
bb.1 (%ir-block.18):
successors: %bb.1(0x7c000000), %bb.2(0x04000000)
liveins: $lr, $r0, $r1, $r2, $r3
renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg
MVE_VPST 4, implicit $vpr
renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr
renamable $r3, renamable $q1 = MVE_VLDRWU32_post killed renamable $r3, 16, 1, renamable $vpr
renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14, $noreg
renamable $q0 = nsw MVE_VMULi32 killed renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0
MVE_VPST 8, implicit $vpr
MVE_VSTRWU32 killed renamable $q0, killed renamable $r0, 0, 1, killed renamable $vpr
renamable $lr = t2LoopDec killed renamable $lr, 1
$r0 = tMOVr $r3, 14, $noreg
t2LoopEnd renamable $lr, %bb.1, implicit-def dead $cpsr
tB %bb.2, 14, $noreg
bb.2 (%ir-block.34):
tPOP_RET 14, $noreg, def $r7, def $pc
...