1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 3
2 # RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1010 -verify-machineinstrs -run-pass=si-i1-copies -o - %s | FileCheck -check-prefixes=GCN %s
4 # Order in which SILowerI1Copies build instructions to merge lane masks should
5 # not depend on order of incoming operands in phi instruction.
6 # SDAG adds phi incomings as it processes basic blocks in reversed post order
7 # traversal. Because of that, incomings in phis created by SDAG are sorted,
8 # compared to the how phi looked in IR, in convenient way for lowerPhis.
10 # Here incomings for %20:vreg_1 = PHI %19, %bb.1, %26, %bb.2 are swapped
11 # to verify that SILowerI1Copies sorts incomings from phi appropriately before
12 # it starts merging lane masks.
16 tracksRegLiveness: true
18 ; GCN-LABEL: name: phi
20 ; GCN-NEXT: successors: %bb.1(0x80000000)
21 ; GCN-NEXT: liveins: $vgpr1, $vgpr2, $vgpr3, $vgpr4
23 ; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr4
24 ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr3
25 ; GCN-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr2
26 ; GCN-NEXT: [[COPY3:%[0-9]+]]:vgpr_32 = COPY $vgpr1
27 ; GCN-NEXT: [[DEF:%[0-9]+]]:sgpr_32 = IMPLICIT_DEF
28 ; GCN-NEXT: [[DEF1:%[0-9]+]]:sgpr_32 = IMPLICIT_DEF
29 ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_64 = REG_SEQUENCE [[COPY1]], %subreg.sub0, [[COPY]], %subreg.sub1
30 ; GCN-NEXT: [[DEF2:%[0-9]+]]:sgpr_32 = IMPLICIT_DEF
31 ; GCN-NEXT: [[DEF3:%[0-9]+]]:sgpr_32 = IMPLICIT_DEF
32 ; GCN-NEXT: [[REG_SEQUENCE1:%[0-9]+]]:vreg_64 = REG_SEQUENCE [[COPY3]], %subreg.sub0, [[COPY2]], %subreg.sub1
33 ; GCN-NEXT: [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 -1
34 ; GCN-NEXT: [[S_MOV_B32_1:%[0-9]+]]:sreg_32 = S_MOV_B32 -1
35 ; GCN-NEXT: [[COPY4:%[0-9]+]]:vreg_64 = COPY [[REG_SEQUENCE]]
36 ; GCN-NEXT: [[COPY5:%[0-9]+]]:vreg_64 = COPY [[REG_SEQUENCE1]]
37 ; GCN-NEXT: [[DEF4:%[0-9]+]]:sreg_32 = IMPLICIT_DEF
38 ; GCN-NEXT: [[COPY6:%[0-9]+]]:sreg_32 = COPY $exec_lo
39 ; GCN-NEXT: [[DEF5:%[0-9]+]]:sreg_32 = IMPLICIT_DEF
42 ; GCN-NEXT: successors: %bb.2(0x40000000), %bb.3(0x40000000)
44 ; GCN-NEXT: [[PHI:%[0-9]+]]:sreg_32 = PHI [[DEF5]], %bb.0, %20, %bb.3
45 ; GCN-NEXT: [[PHI1:%[0-9]+]]:sreg_32 = PHI [[COPY6]], %bb.0, %37, %bb.3
46 ; GCN-NEXT: [[PHI2:%[0-9]+]]:sreg_32 = PHI [[S_MOV_B32_1]], %bb.0, %16, %bb.3
47 ; GCN-NEXT: [[PHI3:%[0-9]+]]:vreg_64 = PHI [[COPY5]], %bb.0, %18, %bb.3
48 ; GCN-NEXT: [[COPY7:%[0-9]+]]:sreg_32 = COPY [[PHI1]]
49 ; GCN-NEXT: [[S_ANDN2_B32_:%[0-9]+]]:sreg_32 = S_ANDN2_B32 [[PHI]], $exec_lo, implicit-def $scc
50 ; GCN-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32 = S_AND_B32 [[PHI1]], $exec_lo, implicit-def $scc
51 ; GCN-NEXT: [[S_OR_B32_:%[0-9]+]]:sreg_32 = S_OR_B32 [[S_ANDN2_B32_]], [[S_AND_B32_]], implicit-def $scc
52 ; GCN-NEXT: [[SI_IF:%[0-9]+]]:sreg_32 = SI_IF [[COPY7]], %bb.3, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
53 ; GCN-NEXT: S_BRANCH %bb.2
56 ; GCN-NEXT: successors: %bb.3(0x80000000)
58 ; GCN-NEXT: [[GLOBAL_LOAD_DWORD:%[0-9]+]]:vgpr_32 = GLOBAL_LOAD_DWORD [[PHI3]], 0, 0, implicit $exec :: (load (s32), addrspace 1)
59 ; GCN-NEXT: [[S_MOV_B32_2:%[0-9]+]]:sreg_32 = S_MOV_B32 0
60 ; GCN-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_32 = V_CMP_EQ_U32_e64 killed [[GLOBAL_LOAD_DWORD]], killed [[S_MOV_B32_2]], implicit $exec
61 ; GCN-NEXT: [[S_ANDN2_B32_1:%[0-9]+]]:sreg_32 = S_ANDN2_B32 [[S_OR_B32_]], $exec_lo, implicit-def $scc
62 ; GCN-NEXT: [[S_AND_B32_1:%[0-9]+]]:sreg_32 = S_AND_B32 [[V_CMP_EQ_U32_e64_]], $exec_lo, implicit-def $scc
63 ; GCN-NEXT: [[S_OR_B32_1:%[0-9]+]]:sreg_32 = S_OR_B32 [[S_ANDN2_B32_1]], [[S_AND_B32_1]], implicit-def $scc
66 ; GCN-NEXT: successors: %bb.4(0x04000000), %bb.1(0x7c000000)
68 ; GCN-NEXT: [[PHI4:%[0-9]+]]:sreg_32 = PHI [[S_OR_B32_]], %bb.1, [[S_OR_B32_1]], %bb.2
69 ; GCN-NEXT: SI_END_CF [[SI_IF]], implicit-def dead $exec, implicit-def dead $scc, implicit $exec
70 ; GCN-NEXT: [[S_MOV_B64_:%[0-9]+]]:sreg_64 = S_MOV_B64 4
71 ; GCN-NEXT: [[V_ADD_U:%[0-9]+]]:vreg_64 = V_ADD_U64_PSEUDO [[PHI3]], killed [[S_MOV_B64_]], implicit-def dead $vcc_lo, implicit $exec
72 ; GCN-NEXT: [[S_MOV_B32_3:%[0-9]+]]:sreg_32 = S_MOV_B32 1
73 ; GCN-NEXT: [[S_ADD_I32_:%[0-9]+]]:sreg_32 = nsw S_ADD_I32 [[PHI2]], killed [[S_MOV_B32_3]], implicit-def dead $scc
74 ; GCN-NEXT: [[S_MOV_B32_4:%[0-9]+]]:sreg_32 = S_MOV_B32 9
75 ; GCN-NEXT: [[S_ANDN2_B32_2:%[0-9]+]]:sreg_32 = S_ANDN2_B32 [[PHI1]], $exec_lo, implicit-def $scc
76 ; GCN-NEXT: [[S_AND_B32_2:%[0-9]+]]:sreg_32 = S_AND_B32 [[PHI4]], $exec_lo, implicit-def $scc
77 ; GCN-NEXT: [[S_OR_B32_2:%[0-9]+]]:sreg_32 = S_OR_B32 [[S_ANDN2_B32_2]], [[S_AND_B32_2]], implicit-def $scc
78 ; GCN-NEXT: S_CMP_GT_I32 [[S_ADD_I32_]], killed [[S_MOV_B32_4]], implicit-def $scc
79 ; GCN-NEXT: S_CBRANCH_SCC1 %bb.1, implicit $scc
80 ; GCN-NEXT: S_BRANCH %bb.4
83 ; GCN-NEXT: [[S_MOV_B32_5:%[0-9]+]]:sgpr_32 = S_MOV_B32 1065353216
84 ; GCN-NEXT: [[S_MOV_B32_6:%[0-9]+]]:sgpr_32 = S_MOV_B32 0
85 ; GCN-NEXT: [[COPY8:%[0-9]+]]:sreg_32_xm0_xexec = COPY [[PHI1]]
86 ; GCN-NEXT: [[COPY9:%[0-9]+]]:vgpr_32 = COPY killed [[S_MOV_B32_5]]
87 ; GCN-NEXT: [[V_CNDMASK_B32_e64_:%[0-9]+]]:vgpr_32 = V_CNDMASK_B32_e64 0, killed [[S_MOV_B32_6]], 0, [[COPY9]], [[COPY8]], implicit $exec
88 ; GCN-NEXT: FLAT_STORE_DWORD [[COPY4]], killed [[V_CNDMASK_B32_e64_]], 0, 0, implicit $exec, implicit $flat_scr :: (store (s32))
91 successors: %bb.1(0x80000000)
92 liveins: $vgpr1, $vgpr2, $vgpr3, $vgpr4
94 %0:vgpr_32 = COPY $vgpr4
95 %1:vgpr_32 = COPY $vgpr3
96 %2:vgpr_32 = COPY $vgpr2
97 %3:vgpr_32 = COPY $vgpr1
98 %4:sgpr_32 = IMPLICIT_DEF
99 %5:sgpr_32 = IMPLICIT_DEF
100 %6:vreg_64 = REG_SEQUENCE %1, %subreg.sub0, %0, %subreg.sub1
101 %7:sgpr_32 = IMPLICIT_DEF
102 %8:sgpr_32 = IMPLICIT_DEF
103 %9:vreg_64 = REG_SEQUENCE %3, %subreg.sub0, %2, %subreg.sub1
104 %10:sreg_32 = S_MOV_B32 -1
105 %11:sreg_32 = S_MOV_B32 -1
106 %12:vreg_64 = COPY %6
107 %13:vreg_64 = COPY %9
108 %14:vreg_1 = COPY %10, implicit $exec
111 successors: %bb.2(0x40000000), %bb.3(0x40000000)
113 %15:sreg_32 = PHI %11, %bb.0, %16, %bb.3
114 %17:vreg_64 = PHI %13, %bb.0, %18, %bb.3
115 %19:vreg_1 = PHI %14, %bb.0, %20, %bb.3
116 %21:sreg_32 = COPY %19
117 %22:sreg_32 = SI_IF %21, %bb.3, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
121 successors: %bb.3(0x80000000)
123 %23:vgpr_32 = GLOBAL_LOAD_DWORD %17, 0, 0, implicit $exec :: (load (s32), addrspace 1)
124 %24:sreg_32 = S_MOV_B32 0
125 %25:sreg_32 = V_CMP_EQ_U32_e64 killed %23, killed %24, implicit $exec
126 %26:vreg_1 = COPY %25
129 successors: %bb.4(0x04000000), %bb.1(0x7c000000)
131 %20:vreg_1 = PHI %26, %bb.2, %19, %bb.1 ;%20:vreg_1 = PHI %19, %bb.1, %26, %bb.2 - this is original phi created by SDAG
132 SI_END_CF %22, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
133 %27:sreg_64 = S_MOV_B64 4
134 %18:vreg_64 = V_ADD_U64_PSEUDO %17, killed %27, implicit-def dead $vcc, implicit $exec
135 %28:sreg_32 = S_MOV_B32 1
136 %16:sreg_32 = nsw S_ADD_I32 %15, killed %28, implicit-def dead $scc
137 %29:sreg_32 = S_MOV_B32 9
138 S_CMP_GT_I32 %16, killed %29, implicit-def $scc
139 S_CBRANCH_SCC1 %bb.1, implicit $scc
143 %30:vreg_1 = PHI %19, %bb.3
144 %31:sgpr_32 = S_MOV_B32 1065353216
145 %32:sgpr_32 = S_MOV_B32 0
146 %33:sreg_32_xm0_xexec = COPY %30
147 %34:vgpr_32 = COPY killed %31
148 %35:vgpr_32 = V_CNDMASK_B32_e64 0, killed %32, 0, %34, %33, implicit $exec
149 FLAT_STORE_DWORD %12, killed %35, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32))