1 ; RUN: llc -O0 -march=amdgcn -mtriple=amdgcn-unknown-amdhsa -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,NOOPT %s
2 ; RUN: llc -march=amdgcn -mtriple=amdgcn-unknown-amdhsa -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,OPT %s
4 ; GCN-LABEL: {{^}}test_debug_value:
5 ; NOOPT: .loc 1 1 42 prologue_end ; /tmp/test_debug_value.cl:1:42
6 ; NOOPT-NEXT: s_load_dwordx2 s[4:5], s[4:5], 0x0
8 ; NOOPT-NEXT: ;DEBUG_VALUE: test_debug_value:globalptr_arg <- $sgpr4_sgpr5
10 ; GCN: flat_store_dword
12 define amdgpu_kernel void @test_debug_value(i32 addrspace(1)* nocapture %globalptr_arg) #0 !dbg !4 {
14 tail call void @llvm.dbg.value(metadata i32 addrspace(1)* %globalptr_arg, metadata !10, metadata !13), !dbg !14
15 store i32 123, i32 addrspace(1)* %globalptr_arg, align 4
19 ; Check for infinite loop in some cases with dbg_value in
20 ; SIOptimizeExecMaskingPreRA (somehow related to undef argument).
22 ; GCN-LABEL: {{^}}only_undef_dbg_value:
23 ; NOOPT: ;DEBUG_VALUE: test_debug_value:globalptr_arg <- [DW_OP_constu 1, DW_OP_swap, DW_OP_xderef] undef
24 ; NOOPT-NEXT: s_endpgm
27 define amdgpu_kernel void @only_undef_dbg_value() #1 {
29 call void @llvm.dbg.value(metadata <4 x float> undef, metadata !10, metadata !DIExpression(DW_OP_constu, 1, DW_OP_swap, DW_OP_xderef)) #2, !dbg !14
33 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
35 attributes #0 = { nounwind }
36 attributes #1 = { nounwind readnone }
39 !llvm.module.flags = !{!11, !12}
41 !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)
42 !1 = !DIFile(filename: "/tmp/test_debug_value.cl", directory: "/Users/matt/src/llvm/build_debug")
44 !4 = distinct !DISubprogram(name: "test_debug_value", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !9)
45 !5 = !DISubroutineType(types: !6)
47 !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64, align: 32)
48 !8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
50 !10 = !DILocalVariable(name: "globalptr_arg", arg: 1, scope: !4, file: !1, line: 1, type: !7)
51 !11 = !{i32 2, !"Dwarf Version", i32 4}
52 !12 = !{i32 2, !"Debug Info Version", i32 3}
54 !14 = !DILocation(line: 1, column: 42, scope: !4)