1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2 # RUN: llc -mtriple=amdgcn-mesa-mesa3d -run-pass=si-optimize-exec-masking-pre-ra -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
4 # Check for regression from assuming an instruction was a copy after
5 # dropping the opcode check.
7 name: exec_src1_is_not_copy
8 tracksRegLiveness: true
11 scratchRSrcReg: '$sgpr96_sgpr97_sgpr98_sgpr99'
12 frameOffsetReg: '$sgpr101'
14 ; GCN-LABEL: name: exec_src1_is_not_copy
16 ; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
17 ; GCN-NEXT: liveins: $vgpr0
19 ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_64 = COPY $exec
20 ; GCN-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
21 ; GCN-NEXT: [[V_CMP_NE_U32_e64_:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
22 ; GCN-NEXT: [[COPY1:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
23 ; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY1]], [[V_CMP_NE_U32_e64_]], implicit-def dead $scc
24 ; GCN-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64 = S_XOR_B64 [[S_AND_B64_]], [[COPY1]], implicit-def dead $scc
25 ; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_]]
26 ; GCN-NEXT: S_CBRANCH_EXECZ %bb.2, implicit $exec
27 ; GCN-NEXT: S_BRANCH %bb.1
30 ; GCN-NEXT: successors: %bb.2(0x80000000)
33 ; GCN-NEXT: successors: %bb.3(0x40000000), %bb.6(0x40000000)
35 ; GCN-NEXT: [[S_OR_SAVEEXEC_B64_:%[0-9]+]]:sreg_64 = S_OR_SAVEEXEC_B64 [[S_XOR_B64_]], implicit-def $exec, implicit-def $scc, implicit $exec
36 ; GCN-NEXT: $exec = S_AND_B64 $exec, [[COPY]], implicit-def dead $scc
37 ; GCN-NEXT: [[S_AND_B64_1:%[0-9]+]]:sreg_64 = S_AND_B64 $exec, [[S_OR_SAVEEXEC_B64_]], implicit-def $scc
38 ; GCN-NEXT: $exec = S_XOR_B64_term $exec, [[S_AND_B64_1]], implicit-def $scc
39 ; GCN-NEXT: S_CBRANCH_EXECZ %bb.6, implicit $exec
40 ; GCN-NEXT: S_BRANCH %bb.3
43 ; GCN-NEXT: successors: %bb.4(0x40000000), %bb.5(0x40000000)
45 ; GCN-NEXT: [[V_CMP_NE_U32_e64_1:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
46 ; GCN-NEXT: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
47 ; GCN-NEXT: [[S_AND_B64_2:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_NE_U32_e64_1]], implicit-def dead $scc
48 ; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_2]]
49 ; GCN-NEXT: S_CBRANCH_EXECZ %bb.5, implicit $exec
50 ; GCN-NEXT: S_BRANCH %bb.4
53 ; GCN-NEXT: successors: %bb.5(0x80000000)
56 ; GCN-NEXT: successors: %bb.6(0x80000000)
58 ; GCN-NEXT: $exec = S_OR_B64 $exec, [[COPY2]], implicit-def $scc
61 ; GCN-NEXT: $exec = S_OR_B64 $exec, [[S_AND_B64_1]], implicit-def $scc
63 successors: %bb.1, %bb.2
66 %0:sreg_64 = COPY $exec
67 %1:vgpr_32 = IMPLICIT_DEF
68 %2:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
69 %3:sreg_64 = COPY $exec, implicit-def $exec
70 %4:sreg_64 = S_AND_B64 %3, %2, implicit-def dead $scc
71 %5:sreg_64 = S_XOR_B64 %4, %3, implicit-def dead $scc
72 $exec = S_MOV_B64_term %4
73 S_CBRANCH_EXECZ %bb.2, implicit $exec
79 successors: %bb.3, %bb.6
81 %6:sreg_64 = S_OR_SAVEEXEC_B64 %5, implicit-def $exec, implicit-def $scc, implicit $exec
82 $exec = S_AND_B64 $exec, %0, implicit-def dead $scc
83 %7:sreg_64 = S_AND_B64 $exec, %6, implicit-def $scc
84 $exec = S_XOR_B64_term $exec, %7, implicit-def $scc
85 S_CBRANCH_EXECZ %bb.6, implicit $exec
89 successors: %bb.4, %bb.5
91 %8:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
92 %9:sreg_64 = COPY $exec, implicit-def $exec
93 %10:sreg_64 = S_AND_B64 %9, %8, implicit-def dead $scc
94 $exec = S_MOV_B64_term %10
95 S_CBRANCH_EXECZ %bb.5, implicit $exec
101 $exec = S_OR_B64 $exec, %9, implicit-def $scc
104 $exec = S_OR_B64 $exec, %7, implicit-def $scc
108 # When folding a v_cndmask and a v_cmp in a pattern leading to
109 # s_cbranch_vccz, ensure that an undef operand is handled correctly.
111 name: cndmask_cmp_cbranch_fold_undef
112 tracksRegLiveness: true
114 ; GCN-LABEL: name: cndmask_cmp_cbranch_fold_undef
116 ; GCN-NEXT: successors: %bb.1(0x80000000)
118 ; GCN-NEXT: $vcc = S_ANDN2_B64 $exec, undef %1:sreg_64_xexec, implicit-def dead $scc
119 ; GCN-NEXT: S_CBRANCH_VCCZ %bb.1, implicit $vcc
124 %1:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %0:sreg_64_xexec, implicit $exec
125 V_CMP_NE_U32_e32 1, %1, implicit-def $vcc, implicit $exec
126 $vcc = S_AND_B64 $exec, $vcc, implicit-def dead $scc
127 S_CBRANCH_VCCZ %bb.1, implicit $vcc
133 # Don't crash on exec copy to SGPR subregister.
135 name: exec_copy_to_subreg
136 tracksRegLiveness: true
138 ; GCN-LABEL: name: exec_copy_to_subreg
140 ; GCN-NEXT: successors: %bb.1(0x80000000)
142 ; GCN-NEXT: dead undef [[COPY:%[0-9]+]].sub0:sgpr_256 = COPY $exec
143 ; GCN-NEXT: dead [[V_CNDMASK_B32_e64_:%[0-9]+]]:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %2:sreg_64_xexec, implicit $exec
144 ; GCN-NEXT: S_BRANCH %bb.1
149 undef %0.sub0:sgpr_256 = COPY $exec
150 %2:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %1:sreg_64_xexec, implicit $exec