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)
34 ; GCN-NEXT: successors: %bb.3(0x40000000), %bb.6(0x40000000)
36 ; 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
37 ; GCN-NEXT: $exec = S_AND_B64 $exec, [[COPY]], implicit-def dead $scc
38 ; GCN-NEXT: [[S_AND_B64_1:%[0-9]+]]:sreg_64 = S_AND_B64 $exec, [[S_OR_SAVEEXEC_B64_]], implicit-def $scc
39 ; GCN-NEXT: $exec = S_XOR_B64_term $exec, [[S_AND_B64_1]], implicit-def $scc
40 ; GCN-NEXT: S_CBRANCH_EXECZ %bb.6, implicit $exec
41 ; GCN-NEXT: S_BRANCH %bb.3
44 ; GCN-NEXT: successors: %bb.4(0x40000000), %bb.5(0x40000000)
46 ; GCN-NEXT: [[V_CMP_NE_U32_e64_1:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
47 ; GCN-NEXT: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
48 ; GCN-NEXT: [[S_AND_B64_2:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_NE_U32_e64_1]], implicit-def dead $scc
49 ; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_2]]
50 ; GCN-NEXT: S_CBRANCH_EXECZ %bb.5, implicit $exec
51 ; GCN-NEXT: S_BRANCH %bb.4
54 ; GCN-NEXT: successors: %bb.5(0x80000000)
58 ; GCN-NEXT: successors: %bb.6(0x80000000)
60 ; GCN-NEXT: $exec = S_OR_B64 $exec, [[COPY2]], implicit-def $scc
63 ; GCN-NEXT: $exec = S_OR_B64 $exec, [[S_AND_B64_1]], implicit-def $scc
65 successors: %bb.1, %bb.2
68 %0:sreg_64 = COPY $exec
69 %1:vgpr_32 = IMPLICIT_DEF
70 %2:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
71 %3:sreg_64 = COPY $exec, implicit-def $exec
72 %4:sreg_64 = S_AND_B64 %3, %2, implicit-def dead $scc
73 %5:sreg_64 = S_XOR_B64 %4, %3, implicit-def dead $scc
74 $exec = S_MOV_B64_term %4
75 S_CBRANCH_EXECZ %bb.2, implicit $exec
81 successors: %bb.3, %bb.6
83 %6:sreg_64 = S_OR_SAVEEXEC_B64 %5, implicit-def $exec, implicit-def $scc, implicit $exec
84 $exec = S_AND_B64 $exec, %0, implicit-def dead $scc
85 %7:sreg_64 = S_AND_B64 $exec, %6, implicit-def $scc
86 $exec = S_XOR_B64_term $exec, %7, implicit-def $scc
87 S_CBRANCH_EXECZ %bb.6, implicit $exec
91 successors: %bb.4, %bb.5
93 %8:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
94 %9:sreg_64 = COPY $exec, implicit-def $exec
95 %10:sreg_64 = S_AND_B64 %9, %8, implicit-def dead $scc
96 $exec = S_MOV_B64_term %10
97 S_CBRANCH_EXECZ %bb.5, implicit $exec
103 $exec = S_OR_B64 $exec, %9, implicit-def $scc
106 $exec = S_OR_B64 $exec, %7, implicit-def $scc
110 # When folding a v_cndmask and a v_cmp in a pattern leading to
111 # s_cbranch_vccz, ensure that an undef operand is handled correctly.
113 name: cndmask_cmp_cbranch_fold_undef
114 tracksRegLiveness: true
116 ; GCN-LABEL: name: cndmask_cmp_cbranch_fold_undef
118 ; GCN-NEXT: successors: %bb.1(0x80000000)
120 ; GCN-NEXT: $vcc = S_ANDN2_B64 $exec, undef %1:sreg_64_xexec, implicit-def dead $scc
121 ; GCN-NEXT: S_CBRANCH_VCCZ %bb.1, implicit $vcc
126 %1:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %0:sreg_64_xexec, implicit $exec
127 V_CMP_NE_U32_e32 1, %1, implicit-def $vcc, implicit $exec
128 $vcc = S_AND_B64 $exec, $vcc, implicit-def dead $scc
129 S_CBRANCH_VCCZ %bb.1, implicit $vcc
135 # Don't crash on exec copy to SGPR subregister.
137 name: exec_copy_to_subreg
138 tracksRegLiveness: true
140 ; GCN-LABEL: name: exec_copy_to_subreg
142 ; GCN-NEXT: successors: %bb.1(0x80000000)
144 ; GCN-NEXT: dead undef %0.sub0:sgpr_256 = COPY $exec
145 ; GCN-NEXT: dead %1:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %2:sreg_64_xexec, implicit $exec
146 ; GCN-NEXT: S_BRANCH %bb.1
151 undef %0.sub0:sgpr_256 = COPY $exec
152 %2:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %1:sreg_64_xexec, implicit $exec