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llvm-mirror/test/MC/WebAssembly/debug-byval-struct.ll
Thomas Lively 81bb5f99ad [WebAssembly] Remove datalayout strings from llc tests
The data layout strings do not have any effect on llc tests and will become
misleadingly out of date as we continue to update the canonical data layout, so
remove them from the tests.

Differential Revision: https://reviews.llvm.org/D105842
2021-07-14 11:17:08 -07:00

115 lines
5.9 KiB
LLVM

; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
; Test that byval args get correct DWARF debug locations.
; These end up in the callee as Wasm locals, which is atypical.
; From C code:
; typedef union { int x; float y; } u;
; typedef struct { int x; float y; } s;
; int some_func(int x, u some_union, s some_struct, int a[3]) {
; return x + some_union.x + some_struct.x + a[0];
; }
; ModuleID = 't.c'
source_filename = "t.c"
target triple = "wasm32-unknown-unknown"
%union.u = type { i32 }
%struct.s = type { i32, float }
; Function Attrs: noinline nounwind optnone
define hidden i32 @some_func(i32 %x, %union.u* byval(%union.u) align 4 %some_union, %struct.s* byval(%struct.s) align 4 %some_struct, i32* %a) #0 !dbg !7 {
entry:
%x.addr = alloca i32, align 4
%a.addr = alloca i32*, align 4
store i32 %x, i32* %x.addr, align 4
call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !23, metadata !DIExpression()), !dbg !24
call void @llvm.dbg.declare(metadata %union.u* %some_union, metadata !25, metadata !DIExpression()), !dbg !26
call void @llvm.dbg.declare(metadata %struct.s* %some_struct, metadata !27, metadata !DIExpression()), !dbg !28
store i32* %a, i32** %a.addr, align 4
call void @llvm.dbg.declare(metadata i32** %a.addr, metadata !29, metadata !DIExpression()), !dbg !30
%0 = load i32, i32* %x.addr, align 4, !dbg !31
%x1 = bitcast %union.u* %some_union to i32*, !dbg !32
%1 = load i32, i32* %x1, align 4, !dbg !32
%add = add nsw i32 %0, %1, !dbg !33
%x2 = getelementptr inbounds %struct.s, %struct.s* %some_struct, i32 0, i32 0, !dbg !34
%2 = load i32, i32* %x2, align 4, !dbg !34
%add3 = add nsw i32 %add, %2, !dbg !35
%3 = load i32*, i32** %a.addr, align 4, !dbg !36
%arrayidx = getelementptr inbounds i32, i32* %3, i32 0, !dbg !36
%4 = load i32, i32* %arrayidx, align 4, !dbg !36
%add4 = add nsw i32 %add3, %4, !dbg !37
ret i32 %add4, !dbg !38
}
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
attributes #0 = { noinline nounwind optnone "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nofree nosync nounwind readnone speculatable willreturn }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0 (https://github.com/llvm/llvm-project.git eccc734a69c0c012ae3160887b65a535b35ead3e)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
!1 = !DIFile(filename: "t.c", directory: "C:\\src\\llvm")
!2 = !{}
!3 = !{i32 7, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"wchar_size", i32 4}
!6 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git eccc734a69c0c012ae3160887b65a535b35ead3e)"}
!7 = distinct !DISubprogram(name: "some_func", scope: !1, file: !1, line: 11, type: !8, scopeLine: 11, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
!8 = !DISubroutineType(types: !9)
!9 = !{!10, !10, !11, !17, !22}
!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!11 = !DIDerivedType(tag: DW_TAG_typedef, name: "u", file: !1, line: 4, baseType: !12)
!12 = distinct !DICompositeType(tag: DW_TAG_union_type, file: !1, line: 1, size: 32, elements: !13)
!13 = !{!14, !15}
!14 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !12, file: !1, line: 2, baseType: !10, size: 32)
!15 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !12, file: !1, line: 3, baseType: !16, size: 32)
!16 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
!17 = !DIDerivedType(tag: DW_TAG_typedef, name: "s", file: !1, line: 9, baseType: !18)
!18 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 6, size: 64, elements: !19)
!19 = !{!20, !21}
!20 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !18, file: !1, line: 7, baseType: !10, size: 32)
!21 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !18, file: !1, line: 8, baseType: !16, size: 32, offset: 32)
!22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 32)
!23 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !1, line: 11, type: !10)
!24 = !DILocation(line: 11, column: 19, scope: !7)
!25 = !DILocalVariable(name: "some_union", arg: 2, scope: !7, file: !1, line: 11, type: !11)
!26 = !DILocation(line: 11, column: 24, scope: !7)
!27 = !DILocalVariable(name: "some_struct", arg: 3, scope: !7, file: !1, line: 11, type: !17)
!28 = !DILocation(line: 11, column: 38, scope: !7)
!29 = !DILocalVariable(name: "a", arg: 4, scope: !7, file: !1, line: 11, type: !22)
!30 = !DILocation(line: 11, column: 55, scope: !7)
!31 = !DILocation(line: 12, column: 12, scope: !7)
!32 = !DILocation(line: 12, column: 27, scope: !7)
!33 = !DILocation(line: 12, column: 14, scope: !7)
!34 = !DILocation(line: 12, column: 43, scope: !7)
!35 = !DILocation(line: 12, column: 29, scope: !7)
!36 = !DILocation(line: 12, column: 47, scope: !7)
!37 = !DILocation(line: 12, column: 45, scope: !7)
!38 = !DILocation(line: 12, column: 5, scope: !7)
; CHECK-LABEL: DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_location (DW_OP_fbreg +12)
; CHECK-NEXT: DW_AT_name ("x")
; CHECK-LABEL: DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_location (DW_OP_WASM_location 0x0 0x1)
; CHECK-NEXT: DW_AT_name ("some_union")
; CHECK-LABEL: DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_location (DW_OP_WASM_location 0x0 0x2)
; CHECK-NEXT: DW_AT_name ("some_struct")
; CHECK-LABEL: DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_location (DW_OP_fbreg +8)
; CHECK-NEXT: DW_AT_name ("a")