# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve.fp -run-pass=arm-low-overhead-loops %s -o - | FileCheck %s
--- |
define hidden arm_aapcs_vfpcc void @it_block_store_count_before_start(float* %pSrc, float* %pDst, i32 %blockSize, i32* %iter.addr) #0 {
entry:
%mul = shl i32 %blockSize, 1
%0 = add i32 %mul, 3
%1 = icmp slt i32 %mul, 4
%smin = select i1 %1, i32 %mul, i32 4
%2 = sub i32 %0, %smin
%3 = lshr i32 %2, 2
%4 = add nuw nsw i32 %3, 1
store i32 %4, i32* %iter.addr, align 4
%start = call i32 @llvm.start.loop.iterations.i32(i32 %4)
br label %do.body
do.body: ; preds = %do.body, %entry
%lsr.iv = phi i32 [ %lsr.iv.next, %do.body ], [ %start, %entry ]
%blkCnt.0 = phi i32 [ %mul, %entry ], [ %sub, %do.body ]
%pDst.addr.0 = phi float* [ %pDst, %entry ], [ %add.ptr4, %do.body ]
%pSrc.addr.0 = phi float* [ %pSrc, %entry ], [ %add.ptr, %do.body ]
%pDst.addr.01 = bitcast float* %pDst.addr.0 to <4 x float>*
%pSrc.addr.02 = bitcast float* %pSrc.addr.0 to <4 x float>*
%5 = tail call <4 x i1> @llvm.arm.mve.vctp32(i32 %blkCnt.0)
%6 = tail call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %pSrc.addr.02, i32 4, <4 x i1> %5, <4 x float> undef)
%7 = fmul <4 x float> %6, %6
tail call void @llvm.masked.store.v4f32.p0v4f32(<4 x float> %7, <4 x float>* %pDst.addr.01, i32 4, <4 x i1> %5)
%add.ptr = getelementptr inbounds float, float* %pSrc.addr.0, i32 4
%add.ptr4 = getelementptr inbounds float, float* %pDst.addr.0, i32 4
%sub = add nsw i32 %blkCnt.0, -4
%8 = call i32 @llvm.loop.decrement.reg.i32(i32 %lsr.iv, i32 1)
%9 = icmp ne i32 %8, 0
%lsr.iv.next = add nsw i32 %lsr.iv, -1
br i1 %9, label %do.body, label %do.end
do.end: ; preds = %do.body
ret void
}
define hidden arm_aapcs_vfpcc void @it_block_store_count_after_start(float* %pSrc, float* %pDst, i32 %blockSize, i32* %iter.addr) #0 {
entry:
%mul = shl i32 %blockSize, 1
%0 = add i32 %mul, 3
%1 = icmp slt i32 %mul, 4
%smin = select i1 %1, i32 %mul, i32 4
%2 = sub i32 %0, %smin
%3 = lshr i32 %2, 2
%4 = add nuw nsw i32 %3, 1
%start = call i32 @llvm.start.loop.iterations.i32(i32 %4)
store i32 %4, i32* %iter.addr, align 4
br label %do.body
do.body: ; preds = %do.body, %entry
%lsr.iv = phi i32 [ %lsr.iv.next, %do.body ], [ %start, %entry ]
%blkCnt.0 = phi i32 [ %mul, %entry ], [ %sub, %do.body ]
%pDst.addr.0 = phi float* [ %pDst, %entry ], [ %add.ptr4, %do.body ]
%pSrc.addr.0 = phi float* [ %pSrc, %entry ], [ %add.ptr, %do.body ]
%pDst.addr.01 = bitcast float* %pDst.addr.0 to <4 x float>*
%pSrc.addr.02 = bitcast float* %pSrc.addr.0 to <4 x float>*
%5 = tail call <4 x i1> @llvm.arm.mve.vctp32(i32 %blkCnt.0)
%6 = tail call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %pSrc.addr.02, i32 4, <4 x i1> %5, <4 x float> undef)
%7 = fmul <4 x float> %6, %6
tail call void @llvm.masked.store.v4f32.p0v4f32(<4 x float> %7, <4 x float>* %pDst.addr.01, i32 4, <4 x i1> %5)
%add.ptr = getelementptr inbounds float, float* %pSrc.addr.0, i32 4
%add.ptr4 = getelementptr inbounds float, float* %pDst.addr.0, i32 4
%sub = add nsw i32 %blkCnt.0, -4
%8 = call i32 @llvm.loop.decrement.reg.i32(i32 %lsr.iv, i32 1)
%9 = icmp ne i32 %8, 0
%lsr.iv.next = add nsw i32 %lsr.iv, -1
br i1 %9, label %do.body, label %do.end
do.end: ; preds = %do.body
ret void
}
; Function Attrs: nounwind readnone
declare <4 x i1> @llvm.arm.mve.vctp32(i32) #1
; Function Attrs: argmemonly nounwind readonly willreturn
declare <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>*, i32 immarg, <4 x i1>, <4 x float>) #2
; Function Attrs: argmemonly nounwind willreturn writeonly
declare void @llvm.masked.store.v4f32.p0v4f32(<4 x float>, <4 x float>*, i32 immarg, <4 x i1>) #3
; Function Attrs: noduplicate nounwind
declare i32 @llvm.start.loop.iterations.i32(i32) #4
; Function Attrs: noduplicate nounwind
declare i32 @llvm.loop.decrement.reg.i32(i32, i32) #4
attributes #0 = { "target-features"="+mve.fp" }
attributes #1 = { nounwind readnone "target-features"="+mve.fp" }
attributes #2 = { argmemonly nounwind readonly willreturn "target-features"="+mve.fp" }
attributes #3 = { argmemonly nounwind willreturn writeonly "target-features"="+mve.fp" }
attributes #4 = { noduplicate nounwind "target-features"="+mve.fp" }
...
---
name: it_block_store_count_before_start
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
localFrameSize: 0
savePoint: ''
restorePoint: ''
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: it_block_store_count_before_start
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3, $r7
; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, 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: renamable $lr = t2MOVi 4, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r12 = t2LSLri renamable $r2, 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: t2CMPri renamable $r12, 4, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2IT 11, 8, implicit-def $itstate
; CHECK: $lr = t2LSLri renamable $r2, 1, 11 /* CC::lt */, killed $cpsr, $noreg, implicit killed renamable $lr, implicit killed $itstate
; CHECK: renamable $r2 = t2RSBrs killed renamable $lr, killed renamable $r2, 10, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $lr = t2ADDri killed renamable $r2, 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r2, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
; CHECK: renamable $lr = nuw nsw t2ADDrs killed renamable $r2, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
; CHECK: t2STRi12 killed renamable $lr, killed renamable $r3, 0, 14 /* CC::al */, $noreg :: (store (s32) into %ir.iter.addr)
; CHECK: $lr = MVE_DLSTP_32 killed renamable $r12
; CHECK: $r2 = tMOVr killed $lr, 14 /* CC::al */, $noreg
; CHECK: bb.1.do.body:
; CHECK: successors: %bb.1(0x7c000000), %bb.2(0x04000000)
; CHECK: liveins: $r0, $r1, $r2
; CHECK: $lr = tMOVr $r2, 14 /* CC::al */, $noreg
; CHECK: renamable $r2, dead $cpsr = nsw tSUBi8 killed $r2, 1, 14 /* CC::al */, $noreg
; CHECK: renamable $r0, renamable $q0 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg :: (load (s128) from %ir.pSrc.addr.02, align 4)
; CHECK: renamable $q0 = MVE_VMULf32 killed renamable $q0, killed renamable $q0, 0, $noreg, $noreg, undef renamable $q0
; CHECK: renamable $r1 = MVE_VSTRWU32_post killed renamable $q0, killed renamable $r1, 16, 0, killed $noreg, $noreg :: (store (s128) into %ir.pDst.addr.01, align 4)
; CHECK: dead $lr = MVE_LETP killed renamable $lr, %bb.1
; CHECK: bb.2.do.end:
; CHECK: frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $r0, $r1, $r2, $r3, $r7, $lr
frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, 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
renamable $lr = t2MOVi 4, 14 /* CC::al */, $noreg, $noreg
renamable $r12 = t2LSLri renamable $r2, 1, 14 /* CC::al */, $noreg, $noreg
t2CMPri renamable $r12, 4, 14 /* CC::al */, $noreg, implicit-def $cpsr
t2IT 11, 8, implicit-def $itstate
$lr = t2LSLri renamable $r2, 1, 11 /* CC::lt */, killed $cpsr, $noreg, implicit killed renamable $lr, implicit killed $itstate
renamable $r2 = t2RSBrs killed renamable $lr, killed renamable $r2, 10, 14 /* CC::al */, $noreg, $noreg
renamable $lr = t2ADDri killed renamable $r2, 3, 14 /* CC::al */, $noreg, $noreg
renamable $r2, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
renamable $lr = nuw nsw t2ADDrs killed renamable $r2, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
t2STRi12 renamable $lr, killed renamable $r3, 0, 14 /* CC::al */, $noreg :: (store (s32) into %ir.iter.addr)
$lr = t2DoLoopStart renamable $lr
$r2 = tMOVr killed $lr, 14 /* CC::al */, $noreg
bb.1.do.body:
successors: %bb.1(0x7c000000), %bb.2(0x04000000)
liveins: $r0, $r1, $r2, $r12
$lr = tMOVr $r2, 14 /* CC::al */, $noreg
renamable $vpr = MVE_VCTP32 renamable $r12, 0, $noreg, $noreg
renamable $r2, dead $cpsr = nsw tSUBi8 killed $r2, 1, 14 /* CC::al */, $noreg
renamable $r12 = nsw t2SUBri killed renamable $r12, 4, 14 /* CC::al */, $noreg, $noreg
MVE_VPST 8, implicit $vpr
renamable $r0, renamable $q0 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg :: (load (s128) from %ir.pSrc.addr.02, align 4)
renamable $lr = t2LoopDec killed renamable $lr, 1
renamable $q0 = MVE_VMULf32 killed renamable $q0, renamable $q0, 0, $noreg, $noreg, undef renamable $q0
MVE_VPST 8, implicit $vpr
renamable $r1 = MVE_VSTRWU32_post killed renamable $q0, killed renamable $r1, 16, 1, killed renamable $vpr, $noreg :: (store (s128) into %ir.pDst.addr.01, align 4)
t2LoopEnd killed renamable $lr, %bb.1, implicit-def dead $cpsr
tB %bb.2, 14 /* CC::al */, $noreg
bb.2.do.end:
frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
...
---
name: it_block_store_count_after_start
alignment: 2
tracksRegLiveness: true
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
- { reg: '$r1', virtual-reg: '' }
- { reg: '$r2', virtual-reg: '' }
- { reg: '$r3', virtual-reg: '' }
frameInfo:
stackSize: 8
offsetAdjustment: 0
maxAlignment: 4
savePoint: ''
restorePoint: ''
fixedStack: []
stack:
- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$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: it_block_store_count_after_start
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3, $r7
; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, 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: renamable $lr = t2MOVi 4, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r12 = t2LSLri renamable $r2, 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: t2CMPri renamable $r12, 4, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2IT 11, 8, implicit-def $itstate
; CHECK: $lr = t2LSLri renamable $r2, 1, 11 /* CC::lt */, killed $cpsr, $noreg, implicit killed renamable $lr, implicit killed $itstate
; CHECK: renamable $r2 = t2RSBrs killed renamable $lr, killed renamable $r2, 10, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $lr = t2ADDri killed renamable $r2, 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r2, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
; CHECK: renamable $lr = nuw nsw t2ADDrs killed renamable $r2, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
; CHECK: t2STRi12 killed renamable $lr, killed renamable $r3, 0, 14 /* CC::al */, $noreg :: (store (s32) into %ir.iter.addr)
; CHECK: $lr = MVE_DLSTP_32 killed renamable $r12
; CHECK: $r2 = tMOVr killed $lr, 14 /* CC::al */, $noreg
; CHECK: bb.1.do.body:
; CHECK: successors: %bb.1(0x7c000000), %bb.2(0x04000000)
; CHECK: liveins: $r0, $r1, $r2
; CHECK: $lr = tMOVr $r2, 14 /* CC::al */, $noreg
; CHECK: renamable $r2, dead $cpsr = nsw tSUBi8 killed $r2, 1, 14 /* CC::al */, $noreg
; CHECK: renamable $r0, renamable $q0 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg :: (load (s128) from %ir.pSrc.addr.02, align 4)
; CHECK: renamable $q0 = MVE_VMULf32 killed renamable $q0, killed renamable $q0, 0, $noreg, $noreg, undef renamable $q0
; CHECK: renamable $r1 = MVE_VSTRWU32_post killed renamable $q0, killed renamable $r1, 16, 0, killed $noreg, $noreg :: (store (s128) into %ir.pDst.addr.01, align 4)
; CHECK: dead $lr = MVE_LETP killed renamable $lr, %bb.1
; CHECK: bb.2.do.end:
; CHECK: frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $r0, $r1, $r2, $r3, $r7, $lr
frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, 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
renamable $lr = t2MOVi 4, 14 /* CC::al */, $noreg, $noreg
renamable $r12 = t2LSLri renamable $r2, 1, 14 /* CC::al */, $noreg, $noreg
t2CMPri renamable $r12, 4, 14 /* CC::al */, $noreg, implicit-def $cpsr
t2IT 11, 8, implicit-def $itstate
$lr = t2LSLri renamable $r2, 1, 11 /* CC::lt */, killed $cpsr, $noreg, implicit killed renamable $lr, implicit killed $itstate
renamable $r2 = t2RSBrs killed renamable $lr, killed renamable $r2, 10, 14 /* CC::al */, $noreg, $noreg
renamable $lr = t2ADDri killed renamable $r2, 3, 14 /* CC::al */, $noreg, $noreg
renamable $r2, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
renamable $lr = nuw nsw t2ADDrs killed renamable $r2, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
t2STRi12 renamable $lr, killed renamable $r3, 0, 14 /* CC::al */, $noreg :: (store (s32) into %ir.iter.addr)
$lr = t2DoLoopStart renamable $lr
$r2 = tMOVr killed $lr, 14 /* CC::al */, $noreg
bb.1.do.body:
successors: %bb.1(0x7c000000), %bb.2(0x04000000)
liveins: $r0, $r1, $r2, $r12
$lr = tMOVr $r2, 14 /* CC::al */, $noreg
renamable $vpr = MVE_VCTP32 renamable $r12, 0, $noreg, $noreg
renamable $r2, dead $cpsr = nsw tSUBi8 killed $r2, 1, 14 /* CC::al */, $noreg
renamable $r12 = nsw t2SUBri killed renamable $r12, 4, 14 /* CC::al */, $noreg, $noreg
MVE_VPST 8, implicit $vpr
renamable $r0, renamable $q0 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg :: (load (s128) from %ir.pSrc.addr.02, align 4)
renamable $lr = t2LoopDec killed renamable $lr, 1
renamable $q0 = MVE_VMULf32 killed renamable $q0, renamable $q0, 0, $noreg, $noreg, undef renamable $q0
MVE_VPST 8, implicit $vpr
renamable $r1 = MVE_VSTRWU32_post killed renamable $q0, killed renamable $r1, 16, 1, killed renamable $vpr, $noreg :: (store (s128) into %ir.pDst.addr.01, align 4)
t2LoopEnd killed renamable $lr, %bb.1, implicit-def dead $cpsr
tB %bb.2, 14 /* CC::al */, $noreg
bb.2.do.end:
frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
...