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: '$sgpr96_sgpr97_sgpr98_sgpr99'
12 scratchWaveOffsetReg: '$sgpr101'
13 frameOffsetReg: '$sgpr101'
15 ; GCN-LABEL: name: exec_src1_is_not_copy
17 ; GCN: successors: %bb.1(0x40000000), %bb.2(0x40000000)
18 ; GCN: liveins: $vgpr0
19 ; GCN: [[COPY:%[0-9]+]]:sreg_64 = COPY $exec
20 ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
21 ; GCN: [[V_CMP_NE_U32_e64_:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
22 ; GCN: [[COPY1:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
23 ; GCN: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY1]], [[V_CMP_NE_U32_e64_]], implicit-def dead $scc
24 ; GCN: [[S_XOR_B64_:%[0-9]+]]:sreg_64 = S_XOR_B64 [[S_AND_B64_]], [[COPY1]], implicit-def dead $scc
25 ; GCN: $exec = S_MOV_B64_term [[S_AND_B64_]]
26 ; GCN: SI_MASK_BRANCH %bb.2, implicit $exec
29 ; GCN: successors: %bb.2(0x80000000)
31 ; GCN: successors: %bb.3(0x40000000), %bb.6(0x40000000)
32 ; GCN: [[S_OR_SAVEEXEC_B64_:%[0-9]+]]:sreg_64 = S_OR_SAVEEXEC_B64 [[S_XOR_B64_]], implicit-def $exec, implicit-def $scc, implicit $exec
33 ; GCN: $exec = S_AND_B64 $exec, [[COPY]], implicit-def dead $scc
34 ; GCN: [[S_AND_B64_1:%[0-9]+]]:sreg_64 = S_AND_B64 $exec, [[S_OR_SAVEEXEC_B64_]], implicit-def $scc
35 ; GCN: $exec = S_XOR_B64_term $exec, [[S_AND_B64_1]], implicit-def $scc
36 ; GCN: SI_MASK_BRANCH %bb.6, implicit $exec
39 ; GCN: successors: %bb.4(0x40000000), %bb.5(0x40000000)
40 ; GCN: [[V_CMP_NE_U32_e64_1:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
41 ; GCN: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
42 ; GCN: [[S_AND_B64_2:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_NE_U32_e64_1]], implicit-def dead $scc
43 ; GCN: $exec = S_MOV_B64_term [[S_AND_B64_2]]
44 ; GCN: SI_MASK_BRANCH %bb.5, implicit $exec
47 ; GCN: successors: %bb.5(0x80000000)
49 ; GCN: successors: %bb.6(0x80000000)
50 ; GCN: $exec = S_OR_B64 $exec, [[COPY2]], implicit-def $scc
52 ; GCN: $exec = S_OR_B64 $exec, [[S_AND_B64_1]], implicit-def $scc
54 successors: %bb.1, %bb.2
57 %0:sreg_64 = COPY $exec
58 %1:vgpr_32 = IMPLICIT_DEF
59 %2:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
60 %3:sreg_64 = COPY $exec, implicit-def $exec
61 %4:sreg_64 = S_AND_B64 %3, %2, implicit-def dead $scc
62 %5:sreg_64 = S_XOR_B64 %4, %3, implicit-def dead $scc
63 $exec = S_MOV_B64_term %4
64 SI_MASK_BRANCH %bb.2, implicit $exec
70 successors: %bb.3, %bb.6
72 %6:sreg_64 = S_OR_SAVEEXEC_B64 %5, implicit-def $exec, implicit-def $scc, implicit $exec
73 $exec = S_AND_B64 $exec, %0, implicit-def dead $scc
74 %7:sreg_64 = S_AND_B64 $exec, %6, implicit-def $scc
75 $exec = S_XOR_B64_term $exec, %7, implicit-def $scc
76 SI_MASK_BRANCH %bb.6, implicit $exec
80 successors: %bb.4, %bb.5
82 %8:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
83 %9:sreg_64 = COPY $exec, implicit-def $exec
84 %10:sreg_64 = S_AND_B64 %9, %8, implicit-def dead $scc
85 $exec = S_MOV_B64_term %10
86 SI_MASK_BRANCH %bb.5, implicit $exec
92 $exec = S_OR_B64 $exec, %9, implicit-def $scc
95 $exec = S_OR_B64 $exec, %7, implicit-def $scc
99 # When folding a v_cndmask and a v_cmp in a pattern leading to
100 # s_cbranch_vccz, ensure that an undef operand is handled correctly.
102 name: cndmask_cmp_cbranch_fold_undef
103 tracksRegLiveness: true
105 ; GCN-LABEL: name: cndmask_cmp_cbranch_fold_undef
107 ; GCN: successors: %bb.1(0x80000000)
108 ; GCN: $vcc = S_ANDN2_B64 $exec, undef %1:sreg_64_xexec, implicit-def $scc
109 ; GCN: S_CBRANCH_VCCZ %bb.1, implicit $vcc
113 %1:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %0:sreg_64_xexec, implicit $exec
114 V_CMP_NE_U32_e32 1, %1, implicit-def $vcc, implicit $exec
115 $vcc = S_AND_B64 $exec, $vcc, implicit-def dead $scc
116 S_CBRANCH_VCCZ %bb.1, implicit $vcc