1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2 # RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - --verify-machineinstrs | FileCheck %s
5 define hidden arm_aapcs_vfpcc void @dont_ignore_vctp(float* %pSrc, float* %pDst, i32 %blockSize) local_unnamed_addr #0 {
7 %mul = shl i32 %blockSize, 1
9 %1 = icmp slt i32 %mul, 4
10 %smin = select i1 %1, i32 %mul, i32 4
11 %2 = sub i32 %0, %smin
13 %4 = add nuw nsw i32 %3, 1
14 %start = call i32 @llvm.start.loop.iterations.i32(i32 %4)
17 do.body: ; preds = %do.body, %entry
18 %blkCnt.0 = phi i32 [ %mul, %entry ], [ %sub, %do.body ]
19 %pDst.addr.0 = phi float* [ %pDst, %entry ], [ %add.ptr4, %do.body ]
20 %pSrc.addr.0 = phi float* [ %pSrc, %entry ], [ %add.ptr, %do.body ]
21 %5 = phi i32 [ %start, %entry ], [ %9, %do.body ]
22 %6 = tail call <4 x i1> @llvm.arm.mve.vctp32(i32 %blkCnt.0)
23 %input_cast = bitcast float* %pSrc.addr.0 to <4 x float>*
24 %7 = tail call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %input_cast, i32 4, <4 x i1> %6, <4 x float> undef)
25 %8 = fmul <4 x float> %7, <float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00>
26 %output_cast = bitcast float* %pDst.addr.0 to <4 x float>*
27 tail call void @llvm.masked.store.v4f32.p0v4f32(<4 x float> %8, <4 x float>* %output_cast, i32 4, <4 x i1> %6)
28 %add.ptr = getelementptr inbounds float, float* %pSrc.addr.0, i32 4
29 %add.ptr4 = getelementptr inbounds float, float* %pDst.addr.0, i32 4
30 %sub = add nsw i32 %blkCnt.0, -4
31 %9 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %5, i32 1)
32 %10 = icmp ne i32 %9, 0
33 br i1 %10, label %do.body, label %do.end
35 do.end: ; preds = %do.body
38 declare <4 x i1> @llvm.arm.mve.vctp32(i32) #1
39 declare <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>*, i32 immarg, <4 x i1>, <4 x float>)
40 declare void @llvm.masked.store.v4f32.p0v4f32(<4 x float>, <4 x float>*, i32 immarg, <4 x i1>)
41 declare i32 @llvm.start.loop.iterations.i32(i32)
42 declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)
46 name: dont_ignore_vctp
48 exposesReturnsTwice: false
50 regBankSelected: false
53 tracksRegLiveness: true
57 - { reg: '$r0', virtual-reg: '' }
58 - { reg: '$r1', virtual-reg: '' }
59 - { reg: '$r2', virtual-reg: '' }
61 isFrameAddressTaken: false
62 isReturnAddressTaken: false
72 cvBytesOfCalleeSavedRegisters: 0
73 hasOpaqueSPAdjustment: false
75 hasMustTailInVarArgFunc: false
81 - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
82 stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
83 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
84 - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
85 stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
86 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
90 value: '<4 x float> <float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00>'
92 isTargetSpecific: false
93 machineFunctionInfo: {}
95 ; CHECK-LABEL: name: dont_ignore_vctp
97 ; CHECK: successors: %bb.1(0x80000000)
98 ; CHECK: liveins: $lr, $r0, $r1, $r2, $r7
99 ; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr, implicit-def $sp, implicit $sp
100 ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 8
101 ; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
102 ; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -8
103 ; CHECK: renamable $r3, dead $cpsr = tLSLri killed renamable $r2, 1, 14 /* CC::al */, $noreg
104 ; CHECK: renamable $r2 = tLEApcrel %const.0, 14 /* CC::al */, $noreg
105 ; CHECK: renamable $q0 = MVE_VLDRWU32 killed renamable $r2, 0, 0, $noreg :: (load (s128) from constant-pool)
106 ; CHECK: $lr = MVE_DLSTP_32 killed renamable $r3
107 ; CHECK: bb.1.do.body (align 4):
108 ; CHECK: successors: %bb.1(0x7c000000), %bb.2(0x04000000)
109 ; CHECK: liveins: $lr, $q0, $r0, $r1
110 ; CHECK: renamable $q1 = nnan ninf nsz MVE_VLDRWU32 renamable $r0, 0, 0, $noreg
111 ; CHECK: renamable $q1 = nnan ninf nsz MVE_VMULf32 killed renamable $q1, renamable $q0, 0, $noreg, undef renamable $q1
112 ; CHECK: MVE_VSTRWU32 killed renamable $q1, renamable $r1, 0, 0, killed $noreg
113 ; CHECK: renamable $r0, dead $cpsr = nuw tADDi8 killed renamable $r0, 16, 14 /* CC::al */, $noreg
114 ; CHECK: renamable $r1, dead $cpsr = nuw tADDi8 killed renamable $r1, 16, 14 /* CC::al */, $noreg
115 ; CHECK: $lr = MVE_LETP killed renamable $lr, %bb.1
116 ; CHECK: bb.2.do.end:
117 ; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
118 ; CHECK: bb.3 (align 16):
119 ; CHECK: CONSTPOOL_ENTRY 0, %const.0, 16
121 successors: %bb.1(0x80000000)
122 liveins: $r0, $r1, $r2, $r7, $lr
124 frame-setup tPUSH 14, $noreg, killed $r7, killed $lr, implicit-def $sp, implicit $sp
125 frame-setup CFI_INSTRUCTION def_cfa_offset 8
126 frame-setup CFI_INSTRUCTION offset $lr, -4
127 frame-setup CFI_INSTRUCTION offset $r7, -8
128 renamable $r3, dead $cpsr = tLSLri renamable $r2, 1, 14, $noreg
129 renamable $r12 = t2MOVi 4, 14, $noreg, $noreg
130 tCMPi8 renamable $r3, 4, 14, $noreg, implicit-def $cpsr
131 t2IT 11, 8, implicit-def $itstate
132 $r12 = t2LSLri renamable $r2, 1, 11, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
133 renamable $r2 = t2RSBrs killed renamable $r12, killed renamable $r2, 10, 14, $noreg, $noreg
134 renamable $r12 = t2ADDri killed renamable $r2, 3, 14, $noreg, $noreg
135 renamable $r2, dead $cpsr = tMOVi8 1, 14, $noreg
136 renamable $lr = nuw nsw t2ADDrs killed renamable $r2, killed renamable $r12, 19, 14, $noreg, $noreg
137 renamable $r2 = tLEApcrel %const.0, 14, $noreg
138 renamable $q0 = MVE_VLDRWU32 killed renamable $r2, 0, 0, $noreg :: (load (s128) from constant-pool)
139 $lr = t2DoLoopStart renamable $lr
141 bb.1.do.body (align 4):
142 successors: %bb.1(0x7c000000), %bb.2(0x04000000)
143 liveins: $lr, $q0, $r0, $r1, $r3
145 renamable $vpr = MVE_VCTP32 renamable $r3, 0, $noreg
146 MVE_VPST 2, implicit $vpr
147 renamable $q1 = nnan ninf nsz MVE_VLDRWU32 renamable $r0, 0, 1, renamable $vpr
148 renamable $q1 = nnan ninf nsz MVE_VMULf32 killed renamable $q1, renamable $q0, 1, renamable $vpr, undef renamable $q1
149 MVE_VSTRWU32 killed renamable $q1, renamable $r1, 0, 1, killed renamable $vpr
150 renamable $r0, dead $cpsr = nuw tADDi8 killed renamable $r0, 16, 14, $noreg
151 renamable $lr = t2LoopDec killed renamable $lr, 1
152 renamable $r1, dead $cpsr = nuw tADDi8 killed renamable $r1, 16, 14, $noreg
153 renamable $r3, dead $cpsr = nsw tSUBi8 killed renamable $r3, 4, 14, $noreg
154 t2LoopEnd renamable $lr, %bb.1, implicit-def dead $cpsr
158 tPOP_RET 14, $noreg, def $r7, def $pc
161 CONSTPOOL_ENTRY 0, %const.0, 16