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: successors: %bb.1(0x40000000), %bb.2(0x40000000)
17 ; GCN: liveins: $vgpr0
18 ; GCN: [[COPY:%[0-9]+]]:sreg_64 = COPY $exec
19 ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
20 ; GCN: [[V_CMP_NE_U32_e64_:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
21 ; GCN: [[COPY1:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
22 ; GCN: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY1]], [[V_CMP_NE_U32_e64_]], implicit-def dead $scc
23 ; GCN: [[S_XOR_B64_:%[0-9]+]]:sreg_64 = S_XOR_B64 [[S_AND_B64_]], [[COPY1]], implicit-def dead $scc
24 ; GCN: $exec = S_MOV_B64_term [[S_AND_B64_]]
25 ; GCN: S_CBRANCH_EXECZ %bb.2, implicit $exec
28 ; GCN: successors: %bb.2(0x80000000)
30 ; GCN: successors: %bb.3(0x40000000), %bb.6(0x40000000)
31 ; GCN: [[S_OR_SAVEEXEC_B64_:%[0-9]+]]:sreg_64 = S_OR_SAVEEXEC_B64 [[S_XOR_B64_]], implicit-def $exec, implicit-def $scc, implicit $exec
32 ; GCN: $exec = S_AND_B64 $exec, [[COPY]], implicit-def dead $scc
33 ; GCN: [[S_AND_B64_1:%[0-9]+]]:sreg_64 = S_AND_B64 $exec, [[S_OR_SAVEEXEC_B64_]], implicit-def $scc
34 ; GCN: $exec = S_XOR_B64_term $exec, [[S_AND_B64_1]], implicit-def $scc
35 ; GCN: S_CBRANCH_EXECZ %bb.6, implicit $exec
38 ; GCN: successors: %bb.4(0x40000000), %bb.5(0x40000000)
39 ; GCN: [[V_CMP_NE_U32_e64_1:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
40 ; GCN: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
41 ; GCN: [[S_AND_B64_2:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_NE_U32_e64_1]], implicit-def dead $scc
42 ; GCN: $exec = S_MOV_B64_term [[S_AND_B64_2]]
43 ; GCN: S_CBRANCH_EXECZ %bb.5, implicit $exec
46 ; GCN: successors: %bb.5(0x80000000)
48 ; GCN: successors: %bb.6(0x80000000)
49 ; GCN: $exec = S_OR_B64 $exec, [[COPY2]], implicit-def $scc
51 ; GCN: $exec = S_OR_B64 $exec, [[S_AND_B64_1]], implicit-def $scc
53 successors: %bb.1, %bb.2
56 %0:sreg_64 = COPY $exec
57 %1:vgpr_32 = IMPLICIT_DEF
58 %2:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
59 %3:sreg_64 = COPY $exec, implicit-def $exec
60 %4:sreg_64 = S_AND_B64 %3, %2, implicit-def dead $scc
61 %5:sreg_64 = S_XOR_B64 %4, %3, implicit-def dead $scc
62 $exec = S_MOV_B64_term %4
63 S_CBRANCH_EXECZ %bb.2, implicit $exec
69 successors: %bb.3, %bb.6
71 %6:sreg_64 = S_OR_SAVEEXEC_B64 %5, implicit-def $exec, implicit-def $scc, implicit $exec
72 $exec = S_AND_B64 $exec, %0, implicit-def dead $scc
73 %7:sreg_64 = S_AND_B64 $exec, %6, implicit-def $scc
74 $exec = S_XOR_B64_term $exec, %7, implicit-def $scc
75 S_CBRANCH_EXECZ %bb.6, implicit $exec
79 successors: %bb.4, %bb.5
81 %8:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
82 %9:sreg_64 = COPY $exec, implicit-def $exec
83 %10:sreg_64 = S_AND_B64 %9, %8, implicit-def dead $scc
84 $exec = S_MOV_B64_term %10
85 S_CBRANCH_EXECZ %bb.5, implicit $exec
91 $exec = S_OR_B64 $exec, %9, implicit-def $scc
94 $exec = S_OR_B64 $exec, %7, implicit-def $scc
98 # When folding a v_cndmask and a v_cmp in a pattern leading to
99 # s_cbranch_vccz, ensure that an undef operand is handled correctly.
101 name: cndmask_cmp_cbranch_fold_undef
102 tracksRegLiveness: true
104 ; GCN-LABEL: name: cndmask_cmp_cbranch_fold_undef
106 ; GCN: successors: %bb.1(0x80000000)
107 ; GCN: $vcc = S_ANDN2_B64 $exec, undef %1:sreg_64_xexec, implicit-def dead $scc
108 ; GCN: S_CBRANCH_VCCZ %bb.1, implicit $vcc
112 %1:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %0:sreg_64_xexec, implicit $exec
113 V_CMP_NE_U32_e32 1, %1, implicit-def $vcc, implicit $exec
114 $vcc = S_AND_B64 $exec, $vcc, implicit-def dead $scc
115 S_CBRANCH_VCCZ %bb.1, implicit $vcc
121 # Don't crash on exec copy to SGPR subregister.
123 name: exec_copy_to_subreg
124 tracksRegLiveness: true
126 ; GCN-LABEL: name: exec_copy_to_subreg
128 ; GCN: successors: %bb.1(0x80000000)
129 ; GCN: dead undef %0.sub0:sgpr_256 = COPY $exec
130 ; GCN: dead %1:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %2:sreg_64_xexec, implicit $exec
131 ; GCN: S_BRANCH %bb.1
135 undef %0.sub0:sgpr_256 = COPY $exec
136 %2:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %1:sreg_64_xexec, implicit $exec