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125 lines
6.6 KiB
YAML
125 lines
6.6 KiB
YAML
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -start-before=branch-relaxation -amdgpu-s-branch-bits=4 -o - %s | FileCheck -check-prefix=GCN %s
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# Make sure there's no assert if the DBG_VALUE ends up in the same
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# block as the branch expansion.
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# GCN-LABEL: long_branch_dbg_value:
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# GCN: BB0_5: ; %bb
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# GCN-NEXT: ;DEBUG_VALUE: test_debug_value:globalptr_arg <- [DW_OP_plus_uconst 12, DW_OP_stack_value]
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# GCN-NEXT: .loc 1 0 42 is_stmt 0 ; /tmp/test_debug_value.cl:0:42
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# GCN-NEXT: s_getpc_b64 s{{\[}}[[PC_LO:[0-9]+]]:[[PC_HI:[0-9]+]]{{\]}}
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# GCN-NEXT: [[POST_GETPC:.Lpost_getpc[0-9]+]]:{{$}}
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# GCN-NEXT: s_add_u32 s[[PC_LO]], s[[PC_LO]], (BB0_4-[[POST_GETPC]])&4294967295
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# GCN-NEXT: s_addc_u32 s[[PC_HI]], s[[PC_HI]], (BB0_4-[[POST_GETPC]])>>32
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# GCN-NEXT: s_setpc_b64
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--- |
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define amdgpu_kernel void @long_branch_dbg_value(float addrspace(1)* nocapture %arg, float %arg1) #1 !dbg !5 {
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bb:
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%long_branch_dbg_value.kernarg.segment = call nonnull align 16 dereferenceable(12) i8 addrspace(4)* @llvm.amdgcn.kernarg.segment.ptr()
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%arg.kernarg.offset = getelementptr inbounds i8, i8 addrspace(4)* %long_branch_dbg_value.kernarg.segment, i64 0
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%arg.kernarg.offset.cast = bitcast i8 addrspace(4)* %arg.kernarg.offset to float addrspace(1)* addrspace(4)*, !amdgpu.uniform !2, !amdgpu.noclobber !2
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%arg.load = load float addrspace(1)*, float addrspace(1)* addrspace(4)* %arg.kernarg.offset.cast, align 16, !invariant.load !2
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%arg1.kernarg.offset = getelementptr inbounds i8, i8 addrspace(4)* %long_branch_dbg_value.kernarg.segment, i64 8
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%arg1.kernarg.offset.cast = bitcast i8 addrspace(4)* %arg1.kernarg.offset to float addrspace(4)*, !amdgpu.uniform !2, !amdgpu.noclobber !2
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%arg1.load = load float, float addrspace(4)* %arg1.kernarg.offset.cast, align 8, !invariant.load !2
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%tmp = fmul float %arg1.load, %arg1.load
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%tmp2 = getelementptr inbounds float, float addrspace(1)* %arg.load, i64 3
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call void @llvm.dbg.value(metadata float addrspace(1)* %tmp2, metadata !11, metadata !DIExpression()) #5, !dbg !12
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store float %tmp, float addrspace(1)* %tmp2, align 4, !dbg !12
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%tmp3 = fcmp olt float %tmp, 0x3810000000000000
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%tmp3.inv = xor i1 %tmp3, true
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br i1 %tmp3.inv, label %bb4, label %bb8, !amdgpu.uniform !2
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bb4: ; preds = %bb
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%tmp5 = load volatile float, float addrspace(1)* undef, align 4
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%tmp6 = fcmp oeq float %tmp5, 0x7FF0000000000000
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br i1 %tmp6, label %bb7, label %Flow, !amdgpu.uniform !2
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bb7: ; preds = %bb4
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br label %Flow, !amdgpu.uniform !2
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Flow: ; preds = %bb7, %bb4
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br label %bb8, !amdgpu.uniform !2
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bb8: ; preds = %bb, %Flow
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ret void
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}
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declare align 4 i8 addrspace(4)* @llvm.amdgcn.kernarg.segment.ptr() #2
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declare void @llvm.dbg.value(metadata, metadata, metadata) #0
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attributes #0 = { nounwind readnone speculatable willreturn }
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attributes #1 = { nounwind writeonly }
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attributes #2 = { nounwind readnone speculatable willreturn }
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attributes #3 = { convergent nounwind willreturn }
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attributes #4 = { convergent nounwind readnone willreturn }
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attributes #5 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 244715) (llvm/trunk 244718)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "/tmp/test_debug_value.cl", directory: "/Users/matt/src/llvm/build_debug")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = distinct !DISubprogram(name: "test_debug_value", scope: !1, file: !1, line: 1, type: !6, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)
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!6 = !DISubroutineType(types: !7)
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!7 = !{null, !8}
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!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 32)
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!9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !{!11}
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!11 = !DILocalVariable(name: "globalptr_arg", arg: 1, scope: !5, file: !1, line: 1, type: !8)
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!12 = !DILocation(line: 1, column: 42, scope: !5)
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...
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---
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name: long_branch_dbg_value
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tracksRegLiveness: true
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registers: []
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body: |
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bb.0.bb:
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successors: %bb.1(0x40000000), %bb.4(0x40000000)
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liveins: $sgpr4_sgpr5
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renamable $sgpr6_sgpr7 = S_LOAD_DWORDX2_IMM renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (s64) from %ir.arg.kernarg.offset.cast, align 16, addrspace 4)
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renamable $sgpr4 = S_LOAD_DWORD_IMM killed renamable $sgpr4_sgpr5, 8, 0 :: (dereferenceable invariant load (s32) from %ir.arg1.kernarg.offset.cast, align 8, addrspace 4)
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S_WAITCNT 49279
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renamable $vgpr0 = nofpexcept V_MUL_F32_e64 0, killed $sgpr4, 0, $sgpr4, 0, 0, implicit $mode, implicit $exec
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DBG_VALUE renamable $sgpr6_sgpr7, $noreg, !11, !DIExpression(DW_OP_plus_uconst, 12, DW_OP_stack_value), debug-location !12
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$vgpr1 = V_MOV_B32_e32 $sgpr6, implicit $exec, implicit-def $vgpr1_vgpr2, implicit $sgpr6_sgpr7
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$vgpr2 = V_MOV_B32_e32 $sgpr7, implicit $exec, implicit killed $sgpr6_sgpr7, implicit $exec
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GLOBAL_STORE_DWORD killed renamable $vgpr1_vgpr2, renamable $vgpr0, 12, 0, implicit $exec, debug-location !12 :: (store (s32) into %ir.tmp2, addrspace 1)
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renamable $sgpr4 = S_MOV_B32 8388608
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renamable $sgpr4_sgpr5 = nofpexcept V_CMP_GT_F32_e64 0, killed $sgpr4, 0, killed $vgpr0, 0, implicit $mode, implicit $exec
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renamable $vcc = S_AND_B64 $exec, killed renamable $sgpr4_sgpr5, implicit-def dead $scc
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S_CBRANCH_VCCNZ %bb.4, implicit killed $vcc
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bb.1.bb4:
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successors: %bb.2(0x40000000), %bb.3(0x40000000)
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renamable $sgpr4_sgpr5 = IMPLICIT_DEF
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$vgpr0 = V_MOV_B32_e32 $sgpr4, implicit $exec, implicit-def $vgpr0_vgpr1, implicit $sgpr4_sgpr5
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$vgpr1 = V_MOV_B32_e32 $sgpr5, implicit $exec, implicit killed $sgpr4_sgpr5, implicit $exec
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renamable $vgpr0 = GLOBAL_LOAD_DWORD killed renamable $vgpr0_vgpr1, 0, 0, implicit $exec :: (volatile load (s32) from `float addrspace(1)* undef`, addrspace 1)
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renamable $sgpr4 = S_MOV_B32 2139095040
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S_WAITCNT 3952
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renamable $sgpr4_sgpr5 = nofpexcept V_CMP_NEQ_F32_e64 0, killed $sgpr4, 0, killed $vgpr0, 0, implicit $mode, implicit $exec
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renamable $vcc = S_AND_B64 $exec, killed renamable $sgpr4_sgpr5, implicit-def dead $scc
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S_CBRANCH_VCCNZ %bb.3, implicit killed $vcc
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bb.2.bb7:
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successors: %bb.3(0x80000000)
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bb.3.Flow:
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successors: %bb.4(0x80000000)
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bb.4.bb8:
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S_ENDPGM 0
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...
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