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llvm-mirror/test/DebugInfo/AMDGPU/variable-locations.ll
Scott Linder bccd0c50ab [AMDGPU] Implement wave64 DWARF register mapping 
Summary:
Implement the DWARF register mapping described in
llvm/docs/AMDGPUUsage.rst

This is currently limited to wave64 VGPRs/AGPRs.

This also includes some minor changes in AMDGPUInstPrinter,
AMDGPUMCTargetDesc, and AMDGPUAsmParser to make generating CFI assembly
text and ELF sections possible to ease testing, although complete CFI
support is not yet implemented.

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74915
2020-02-25 14:00:01 -05:00

115 lines
5.7 KiB
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; RUN: llc -O0 -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -verify-machineinstrs -filetype=obj < %s | llvm-dwarfdump -v -debug-info - | FileCheck %s
; LLVM IR generated with the following command and OpenCL source:
;
; $clang -cl-std=CL2.0 -g -O0 -target amdgcn-amd-amdhsa -S -emit-llvm <path-to-file>
;
; global int GlobA;
; global int GlobB;
;
; kernel void kernel1(unsigned int ArgN, global int addrspace(5)*ArgA, global int addrspace(5)*ArgB) {
; ArgA[ArgN] += ArgB[ArgN];
; }
declare void @llvm.dbg.declare(metadata, metadata, metadata)
; CHECK: {{.*}}DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}}"GlobA"
; CHECK-NEXT: DW_AT_type
; CHECK-NEXT: DW_AT_external
; CHECK-NEXT: DW_AT_decl_file
; CHECK-NEXT: DW_AT_decl_line
; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_addr 0x0)
@GlobA = common addrspace(1) global i32 0, align 4, !dbg !0
; CHECK: {{.*}}DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}}"GlobB"
; CHECK-NEXT: DW_AT_type
; CHECK-NEXT: DW_AT_external
; CHECK-NEXT: DW_AT_decl_file
; CHECK-NEXT: DW_AT_decl_line
; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_addr 0x0)
@GlobB = common addrspace(1) global i32 0, align 4, !dbg !6
; CHECK: {{.*}}DW_TAG_subprogram
; CHECK: DW_AT_frame_base [DW_FORM_block1] (DW_OP_reg{{.*}} SGPR9)
define amdgpu_kernel void @kernel1(
; CHECK: {{.*}}DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_fbreg +4, DW_OP_lit1, DW_OP_swap, DW_OP_xderef)
; CHECK-NEXT: DW_AT_name {{.*}}"ArgN"
i32 %ArgN,
; CHECK: {{.*}}DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_fbreg +8, DW_OP_lit1, DW_OP_swap, DW_OP_xderef)
; CHECK-NEXT: DW_AT_name {{.*}}"ArgA"
i32 addrspace(1)* %ArgA,
; CHECK: {{.*}}DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_fbreg +16, DW_OP_lit1, DW_OP_swap, DW_OP_xderef)
; CHECK-NEXT: DW_AT_name {{.*}}"ArgB"
i32 addrspace(1)* %ArgB) !dbg !13 {
entry:
%ArgN.addr = alloca i32, align 4, addrspace(5)
%ArgA.addr = alloca i32 addrspace(1)*, align 4, addrspace(5)
%ArgB.addr = alloca i32 addrspace(1)*, align 4, addrspace(5)
store i32 %ArgN, i32 addrspace(5)* %ArgN.addr, align 4
call void @llvm.dbg.declare(metadata i32 addrspace(5)* %ArgN.addr, metadata !22, metadata !23), !dbg !24
store i32 addrspace(1)* %ArgA, i32 addrspace(1)* addrspace(5)* %ArgA.addr, align 4
call void @llvm.dbg.declare(metadata i32 addrspace(1)* addrspace(5)* %ArgA.addr, metadata !25, metadata !23), !dbg !26
store i32 addrspace(1)* %ArgB, i32 addrspace(1)* addrspace(5)* %ArgB.addr, align 4
call void @llvm.dbg.declare(metadata i32 addrspace(1)* addrspace(5)* %ArgB.addr, metadata !27, metadata !23), !dbg !28
%0 = load i32 addrspace(1)*, i32 addrspace(1)* addrspace(5)* %ArgB.addr, align 4, !dbg !29
%1 = load i32, i32 addrspace(5)* %ArgN.addr, align 4, !dbg !30
%idxprom = zext i32 %1 to i64, !dbg !29
%arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %0, i64 %idxprom, !dbg !29
%2 = load i32, i32 addrspace(1)* %arrayidx, align 4, !dbg !29
%3 = load i32 addrspace(1)*, i32 addrspace(1)* addrspace(5)* %ArgA.addr, align 4, !dbg !31
%4 = load i32, i32 addrspace(5)* %ArgN.addr, align 4, !dbg !32
%idxprom1 = zext i32 %4 to i64, !dbg !31
%arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %3, i64 %idxprom1, !dbg !31
%5 = load i32, i32 addrspace(1)* %arrayidx2, align 4, !dbg !33
%add = add nsw i32 %5, %2, !dbg !33
store i32 %add, i32 addrspace(1)* %arrayidx2, align 4, !dbg !33
ret void, !dbg !34
}
!llvm.dbg.cu = !{!2}
!opencl.ocl.version = !{!9}
!llvm.module.flags = !{!10, !11}
!llvm.ident = !{!12}
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = distinct !DIGlobalVariable(name: "GlobA", scope: !2, file: !3, line: 1, type: !8, isLocal: false, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 5.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
!3 = !DIFile(filename: "variable-locations.cl", directory: "/some/random/directory")
!4 = !{}
!5 = !{!0, !6}
!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
!7 = distinct !DIGlobalVariable(name: "GlobB", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true)
!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!9 = !{i32 2, i32 0}
!10 = !{i32 2, !"Dwarf Version", i32 2}
!11 = !{i32 2, !"Debug Info Version", i32 3}
!12 = !{!"clang version 5.0.0"}
!13 = distinct !DISubprogram(name: "kernel1", scope: !3, file: !3, line: 4, type: !14, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)
!14 = !DISubroutineType(types: !15)
!15 = !{null, !16, !17, !17}
!16 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
!17 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64)
!18 = !{i32 0, i32 1, i32 1}
!19 = !{!"none", !"none", !"none"}
!20 = !{!"uint", !"int addrspace(5)*", !"int addrspace(5)*"}
!21 = !{!"", !"", !""}
!22 = !DILocalVariable(name: "ArgN", arg: 1, scope: !13, file: !3, line: 4, type: !16)
!23 = !DIExpression(DW_OP_constu, 1, DW_OP_swap, DW_OP_xderef)
!24 = !DILocation(line: 4, column: 34, scope: !13)
!25 = !DILocalVariable(name: "ArgA", arg: 2, scope: !13, file: !3, line: 4, type: !17)
!26 = !DILocation(line: 4, column: 52, scope: !13)
!27 = !DILocalVariable(name: "ArgB", arg: 3, scope: !13, file: !3, line: 4, type: !17)
!28 = !DILocation(line: 4, column: 70, scope: !13)
!29 = !DILocation(line: 5, column: 17, scope: !13)
!30 = !DILocation(line: 5, column: 22, scope: !13)
!31 = !DILocation(line: 5, column: 3, scope: !13)
!32 = !DILocation(line: 5, column: 8, scope: !13)
!33 = !DILocation(line: 5, column: 14, scope: !13)
!34 = !DILocation(line: 6, column: 1, scope: !13)
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