1 # RUN: llc -march=amdgcn -run-pass simple-register-coalescing -verify-machineinstrs -o - %s | FileCheck --check-prefix=GCN %s
3 # See bug http://llvm.org/PR33152 for details of the bug this test is checking
5 # This test will provoke a subrange join during simple register
6 # coalescing. Withough a fix for PR33152 this causes an unreachable in SubRange
9 # The lines where the problem exhibits are the last 2 copy instructions in the
13 # GCN: successors: %bb.7(0x{{[0-9]+}}), %bb.18(0x{{[0-9]+}})
14 # GCN: %{{[0-9]+}}:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %{{[0-9]+}}, 0, 0, 0, 0, 0, 0, 0, implicit $exec
18 target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5"
19 target triple = "amdgcn--amdpal"
21 define amdgpu_ps void @main() #0 {
25 attributes #0 = { "target-cpu"="gfx803" }
30 tracksRegLiveness: true
33 successors: %bb.2(0x40000000), %bb.1(0x40000000)
34 S_CBRANCH_SCC0 %bb.2, implicit undef $scc
37 successors: %bb.9(0x80000000)
38 %0:vreg_128 = IMPLICIT_DEF
42 successors: %bb.4(0x40000000), %bb.3(0x40000000)
43 S_CBRANCH_SCC0 %bb.4, implicit undef $scc
46 successors: %bb.5(0x80000000)
47 %1:vreg_128 = IMPLICIT_DEF
51 successors: %bb.6(0x80000000)
52 %2:sreg_64 = S_MOV_B64 0
53 %3:sreg_32_xm0 = S_MOV_B32 61440
54 %4:sreg_32_xm0 = S_MOV_B32 -1
55 %5:sreg_64 = COPY killed %2
56 %6:vreg_128 = IMPLICIT_DEF
60 successors: %bb.9(0x80000000)
61 %7:vreg_128 = COPY killed %1
62 %8:vreg_128 = COPY killed %7
63 %0:vreg_128 = COPY killed %8
67 successors: %bb.7(0x40000000), %bb.18(0x40000000)
68 %9:vreg_128 = COPY killed %6
69 %10:sreg_64 = COPY killed %5
70 undef %11.sub2:sgpr_128 = COPY %4
71 %11.sub3:sgpr_128 = COPY %3
72 %12:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET killed %11, 0, 0, 0, 0, 0, 0, 0, implicit $exec
73 undef %13.sub1:vreg_128 = COPY %9.sub1
74 %13.sub2:vreg_128 = COPY %9.sub2
75 %14:sreg_64 = V_CMP_GT_F32_e64 0, target-flags(amdgpu-rel32-lo) 0, 0, killed %12.sub3, 0, implicit $exec
76 %15:vgpr_32 = V_ADD_F32_e32 1065353216, undef %16:vgpr_32, implicit $exec
77 %17:sreg_64 = V_CMP_GT_F32_e64 0, 0, 0, killed %15, 0, implicit $exec
78 %18:sreg_64 = S_AND_B64 killed %17, killed %14, implicit-def dead $scc
79 %19:sreg_64 = COPY %10
80 %20:vreg_128 = COPY %13
81 %21:vreg_128 = IMPLICIT_DEF
82 %22:sreg_64 = COPY $exec, implicit-def $exec
83 %23:sreg_64 = S_AND_B64 %22, %18, implicit-def dead $scc
84 %24:sreg_64 = S_XOR_B64 %23, %22, implicit-def dead $scc
85 $exec = S_MOV_B64_term killed %23
86 SI_MASK_BRANCH %bb.7, implicit $exec
90 successors: %bb.6(0x40000000), %bb.8(0x40000000)
91 $exec = S_OR_B64 $exec, %24, implicit-def $scc
92 %25:vreg_128 = COPY killed %21
93 %26:vreg_128 = COPY killed %20
94 %27:sreg_64 = COPY killed %19
95 %28:sreg_64 = S_OR_B64 %24, killed %27, implicit-def dead $scc
97 %6:vreg_128 = COPY killed %25
98 $exec = S_ANDN2_B64_term $exec, %28, implicit-def $scc
99 S_CBRANCH_EXECNZ %bb.6, implicit $exec
103 successors: %bb.5(0x80000000)
104 $exec = S_OR_B64 $exec, killed %28, implicit-def $scc
105 %29:vreg_128 = COPY killed %26
106 %1:vreg_128 = COPY killed %29
110 successors: %bb.10(0x80000000)
111 %30:vreg_128 = COPY killed %0
115 successors: %bb.12(0x40000000), %bb.11(0x40000000)
116 S_CBRANCH_SCC0 %bb.12, implicit undef $scc
119 successors: %bb.14(0x80000000)
120 %31:vreg_128 = IMPLICIT_DEF
124 successors: %bb.13(0x80000000)
125 S_CBRANCH_SCC1 %bb.13, implicit undef $scc
129 successors: %bb.14(0x80000000)
130 %32:vgpr_32 = V_MUL_F32_e32 undef %33:vgpr_32, killed %30.sub1, implicit $exec
131 %34:vgpr_32 = V_MUL_F32_e32 undef %35:vgpr_32, killed %32, implicit $exec
132 undef %36.sub0:vreg_128 = COPY %34
133 %31:vreg_128 = COPY killed %36
136 successors: %bb.16(0x40000000), %bb.15(0x40000000)
137 %37:vreg_128 = COPY killed %31
138 S_CBRANCH_SCC0 %bb.16, implicit undef $scc
141 successors: %bb.17(0x80000000)
142 %38:vreg_128 = IMPLICIT_DEF
146 successors: %bb.17(0x80000000)
147 %39:vgpr_32 = V_FMA_F32 0, undef %40:vgpr_32, 0, killed %37.sub0, 0, undef %41:vgpr_32, 0, 0, implicit $exec
148 %42:vgpr_32 = V_FMA_F32 0, undef %43:vgpr_32, 0, undef %44:vgpr_32, 0, killed %39, 0, 0, implicit $exec
149 %45:vgpr_32 = V_FMA_F32 0, undef %46:vgpr_32, 0, undef %47:vgpr_32, 0, killed %42, 0, 0, implicit $exec
150 dead %48:vgpr_32 = V_MUL_F32_e32 undef %49:vgpr_32, killed %45, implicit $exec
151 %50:vgpr_32 = V_MUL_F32_e32 undef %51:vgpr_32, undef %52:vgpr_32, implicit $exec
152 undef %53.sub1:vreg_128 = COPY %50
153 %38:vreg_128 = COPY killed %53
156 %54:vreg_128 = COPY killed %38
157 %55:vgpr_32 = V_FMA_F32 0, killed %54.sub1, 0, target-flags(amdgpu-gotprel32-lo) 1056964608, 0, 1056964608, 0, 0, implicit $exec
158 EXP 1, undef %56:vgpr_32, killed %55, undef %57:vgpr_32, undef %58:vgpr_32, -1, 0, 15, implicit $exec
162 successors: %bb.7(0x80000000)
163 dead %59:vgpr_32 = V_FMA_F32 0, killed %9.sub2, 0, undef %60:vgpr_32, 0, undef %61:vgpr_32, 0, 0, implicit $exec
164 dead %62:vgpr_32 = BUFFER_LOAD_DWORD_OFFEN undef %63:vgpr_32, undef %64:sgpr_128, undef %65:sreg_32, 0, 0, 0, 0, 0, 0, implicit $exec
165 undef %66.sub1:vreg_128 = COPY %13.sub1
166 %66.sub2:vreg_128 = COPY %13.sub2
167 %67:sreg_64 = V_CMP_NGT_F32_e64 0, 0, 0, undef %68:vgpr_32, 0, implicit $exec
168 %69:vgpr_32 = V_ADD_F32_e32 1065353216, undef %70:vgpr_32, implicit $exec
169 %71:vgpr_32 = V_ADD_F32_e32 1065353216, killed %69, implicit $exec
170 %72:sreg_64 = V_CMP_NGT_F32_e64 0, 0, 0, killed %71, 0, implicit $exec
171 %73:sreg_64 = S_OR_B64 killed %72, killed %67, implicit-def dead $scc
172 %74:sreg_64 = S_OR_B64 killed %73, killed %10, implicit-def dead $scc
173 %19:sreg_64 = COPY killed %74
174 %20:vreg_128 = COPY %66
175 %21:vreg_128 = COPY killed %66